-
Distances: Crash Course Astronomy #25
How do astronomers make sense of the vastness of space? How do they study things so far away? Today Phil talks about distances, going back to early astronomy. Ancient Greeks were able to find the size of the Earth and from that the distance to and the sizes of the Moon and Sun. Once the Earth/Sun distance was found, parallax was used to find the distance to nearby stars, and that was bootstrapped using brightness to determine the distances to much farther stars.
Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster
--
Chapters:
Introduction 00:00
How did we calculate the Earth's Size? 1:07
THE Astronomical Unit (AU) = 149,597,870.7 km 3:12
Depth Perception & Parallax 5:39
Light Years & Parsecs 7:31
Brightness Indicates...
published: 17 Jul 2015
-
Light seconds, light years, light centuries: How to measure extreme distances - Yuan-Sen Ting
View full lesson: http://ed.ted.com/lessons/how-do-we-measure-distances-in-space-yuan-sen-ting
When we look at the sky, we have a flat, two-dimensional view. So how do astronomers figure the distances of stars and galaxies from Earth? Yuan-Sen Ting shows us how trigonometric parallaxes, standard candles and more help us determine the distance of objects several billion light years away from Earth.
Lesson by Yuan-Sen Ting, animation by TED-Ed.
published: 09 Oct 2014
-
Astronomy - Measuring Distance, Size, and Luminosity (25 of 30) Tully-Fisher Relationship
Visit http://ilectureonline.com for more math and science lectures!
In this video I will explain the Tully-Fisher relationship.
published: 10 Apr 2014
-
How to calculate stellar distances using parallax | Astronomy #astrophysics
published: 04 Apr 2023
-
Measuring distance to stars #shorts
Let's learn how we can determine the distance to nearby stars using the orbit of the Earth around the Sun as our measuring tape!
published: 09 Sep 2021
-
We Can’t Measure Distance in Outer Space! #shorts
Cosmic distances aren't just difficult to measure. They're impossible.
________________________________
RELATED YOUTUBE VIDEOS
The Cosmic Illusion No One Talks About:
https://youtu.be/nSJtzn2H3Do
________________________________
SUPPORT THE SCIENCE ASYLUM
Patreon:
http://www.patreon.com/ScienceAsylum
YouTube Membership:
https://www.youtube.com/channel/UCXgNowiGxwwnLeQ7DXTwXPg/join
Advanced Theoretical Physics (Paperback):
http://www.lulu.com/shop/nick-lucid/advanced-theoretical-physics-a-historical-perspective/paperback/product-24250687.html
Advanced Theoretical Physics (eBook):
https://gumroad.com/l/ubSc
Merchandise:
http://shop.spreadshirt.com/scienceasylum/
________________________________
IMAGE CREDITS
Crab Nebula:
https://www.nasa.gov/multimedia/imagegallery/image_feature_1604....
published: 13 Nov 2022
-
The Oort Cloud: Crash Course Astronomy #22
Now that we’re done with the planets, asteroid belt, and comets, we’re heading to the outskirts of the solar system. Out past Neptune are vast reservoirs of icy bodies that can become comets if they get poked into the inner solar system. The Kuiper Belt is a donut shape aligned with the plane of the solar system; the scattered disk is more eccentric and is the source of short-period comets, and the Oort Cloud which surrounds the solar system out to great distances is the source of long-period comets. These bodies all probably formed closer to the Sun and got flung out to the solar system’s suburbs by gravitational interactions with the outer planets.
Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster
--
Chapters:
I...
published: 26 Jun 2015
-
The Cosmic Distance Ladder
We use many tools to get us out to the farthest reaches of the Cosmos. Herein, we summarize the various ways we learn to measure these gargantuan lengths. This is part of my complete intro Astronomy class that I taught at Willam Paterson University and CUNY Hunter.
0:00 Introduction
3:01 Hubble's Law
4:00 Steps to Find the Hubble Parameter Ho
5:25 More on the Leavitt P-L Relationship
7:09 Steps up the Cosmic Distance Ladder
7:41 The Astronomical Unit
8:51 Trigonometric Parallaxes
9:57 Spectroscopic Parallaxes
11:49 Cepheid Variable Stars
14:10 Step 5: Galaxy Standard Candles: Desperation....
15:24 Luminosities of Entire Galaxies
18:57 The Tully-Fisher Relation for Spiral Galaxies
21:48 Redshift Distances
23:11 Critical Measurements for the Cosmic Redshift
24:51 There are still things to...
published: 02 Aug 2018
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Spaced Out: Crash Course Kids #25.1
So... how big is the universe? It's big... really big... no, bigger than that... it's big. In this episode of Crash Course Kids, Sabrina gives us some perspective on this whole universe thing and how we fit into it.
This first series is based on 5th-grade science. We're super excited and hope you enjoy Crash Course Kids!
///Standards Used in This Video///
5-ESS2-1. Develop a model using an example to describe ways the geosphere, biosphere, hydrosphere, and/or atmosphere interact. [Clarification Statement: Examples could include the influence of the ocean on ecosystems, landform shape, and climate; the influence of the atmosphere on landforms and ecosystems through weather and climate; and the influence of mountain ranges on winds and clouds in the atmosphere. The geosphere, hydrosphere,...
published: 01 Sep 2015
-
How do astronomers measure distance of far away planets , stars and galaxies?
The technique through which astronomers use to measure distance of faraway objects.
published: 30 Mar 2023
11:21
Distances: Crash Course Astronomy #25
How do astronomers make sense of the vastness of space? How do they study things so far away? Today Phil talks about distances, going back to early astronomy. A...
How do astronomers make sense of the vastness of space? How do they study things so far away? Today Phil talks about distances, going back to early astronomy. Ancient Greeks were able to find the size of the Earth and from that the distance to and the sizes of the Moon and Sun. Once the Earth/Sun distance was found, parallax was used to find the distance to nearby stars, and that was bootstrapped using brightness to determine the distances to much farther stars.
Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster
--
Chapters:
Introduction 00:00
How did we calculate the Earth's Size? 1:07
THE Astronomical Unit (AU) = 149,597,870.7 km 3:12
Depth Perception & Parallax 5:39
Light Years & Parsecs 7:31
Brightness Indicates Distance 9:07
Review 10:30
--
PBS Digital Studios: http://youtube.com/pbsdigitalstudios
Follow Phil on Twitter: https://twitter.com/badastronomer
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support CrashCourse on Patreon: http://www.patreon.com/crashcourse
--
PHOTOS/VIDEOS
Lunar Ecplise http://www.slate.com/content/dam/slate/blogs/bad_astronomy/2014/04/15/lunareclipse_partial_apr142014_spica.jpg.CROP.original-original.jpg [credit: Phil Plait]
Venus & Mercury [credit: Phil Plait]
Venus Transit https://www.youtube.com/watch?v=34mXua1n_FQ [credit: NASA]
Black Drop Venus Transit https://en.wikipedia.org/wiki/Black_drop_effect#mediaviewer/File:BlackDrop-Venus-Transit.jpg [credit: Wikimedia Commons, H. Raab, Johannes-Kepler-Observatory]
New Horizons Approaching Pluto and Charon https://en.wikipedia.org/wiki/New_Horizons#/media/File:15-011a-NewHorizons-PlutoFlyby-ArtistConcept-14July2015-20150115.jpg [credit: NASA/JHU APL/SwRI/Steve Gribben]
Radio Telescopes Diagram http://scitechdaily.com/images/Radio-Telescopes-Settle-Controversy-Over-Distance-to-Pleiades.jpg [credit: Alexandra Angelich, NRAO/AUI/NSF]
61 Cygni https://archive.stsci.edu/cgi-bin/dss_search?v=poss1_red&r=21+06+54.60&d=%2B38+44+44.9&e=J2000&h=30&w=30&f=gif&c=none&fov=NONE&v3= [credit: Caltech / National Geographic Society / STScI]
Proxima Centauri https://www.spacetelescope.org/images/potw1343a/ [credit: ESA/Hubble & NASA]
Dying Star http://www.nasa.gov/images/content/64884main_image_feature_211_jwfull.jpg [credit: NASA, ESA, HEIC, and The Hubble Heritage Team (STScI/AURA)]
Exploding Star http://www.nasa.gov/multimedia/imagegallery/image_feature_1604.html [credit: NASA, ESA, J. Hester, A. Loll (ASU)]
Animation of a Variable Star http://www.spacetelescope.org/videos/heic1323j/ [credit: NASA, ESA, M. Kornmesser]
Hubble's High-Definition Panoramic View of the Andromeda Galaxy http://hubblesite.org/newscenter/archive/releases/2015/02/image/a/ [credit: NASA, ESA, J. Dalcanton, B.F. Williams, and L.C. Johnson (University of Washington), the PHAT team, and R. Gendler]
https://wn.com/Distances_Crash_Course_Astronomy_25
How do astronomers make sense of the vastness of space? How do they study things so far away? Today Phil talks about distances, going back to early astronomy. Ancient Greeks were able to find the size of the Earth and from that the distance to and the sizes of the Moon and Sun. Once the Earth/Sun distance was found, parallax was used to find the distance to nearby stars, and that was bootstrapped using brightness to determine the distances to much farther stars.
Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster
--
Chapters:
Introduction 00:00
How did we calculate the Earth's Size? 1:07
THE Astronomical Unit (AU) = 149,597,870.7 km 3:12
Depth Perception & Parallax 5:39
Light Years & Parsecs 7:31
Brightness Indicates Distance 9:07
Review 10:30
--
PBS Digital Studios: http://youtube.com/pbsdigitalstudios
Follow Phil on Twitter: https://twitter.com/badastronomer
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support CrashCourse on Patreon: http://www.patreon.com/crashcourse
--
PHOTOS/VIDEOS
Lunar Ecplise http://www.slate.com/content/dam/slate/blogs/bad_astronomy/2014/04/15/lunareclipse_partial_apr142014_spica.jpg.CROP.original-original.jpg [credit: Phil Plait]
Venus & Mercury [credit: Phil Plait]
Venus Transit https://www.youtube.com/watch?v=34mXua1n_FQ [credit: NASA]
Black Drop Venus Transit https://en.wikipedia.org/wiki/Black_drop_effect#mediaviewer/File:BlackDrop-Venus-Transit.jpg [credit: Wikimedia Commons, H. Raab, Johannes-Kepler-Observatory]
New Horizons Approaching Pluto and Charon https://en.wikipedia.org/wiki/New_Horizons#/media/File:15-011a-NewHorizons-PlutoFlyby-ArtistConcept-14July2015-20150115.jpg [credit: NASA/JHU APL/SwRI/Steve Gribben]
Radio Telescopes Diagram http://scitechdaily.com/images/Radio-Telescopes-Settle-Controversy-Over-Distance-to-Pleiades.jpg [credit: Alexandra Angelich, NRAO/AUI/NSF]
61 Cygni https://archive.stsci.edu/cgi-bin/dss_search?v=poss1_red&r=21+06+54.60&d=%2B38+44+44.9&e=J2000&h=30&w=30&f=gif&c=none&fov=NONE&v3= [credit: Caltech / National Geographic Society / STScI]
Proxima Centauri https://www.spacetelescope.org/images/potw1343a/ [credit: ESA/Hubble & NASA]
Dying Star http://www.nasa.gov/images/content/64884main_image_feature_211_jwfull.jpg [credit: NASA, ESA, HEIC, and The Hubble Heritage Team (STScI/AURA)]
Exploding Star http://www.nasa.gov/multimedia/imagegallery/image_feature_1604.html [credit: NASA, ESA, J. Hester, A. Loll (ASU)]
Animation of a Variable Star http://www.spacetelescope.org/videos/heic1323j/ [credit: NASA, ESA, M. Kornmesser]
Hubble's High-Definition Panoramic View of the Andromeda Galaxy http://hubblesite.org/newscenter/archive/releases/2015/02/image/a/ [credit: NASA, ESA, J. Dalcanton, B.F. Williams, and L.C. Johnson (University of Washington), the PHAT team, and R. Gendler]
- published: 17 Jul 2015
- views: 1948731
5:29
Light seconds, light years, light centuries: How to measure extreme distances - Yuan-Sen Ting
View full lesson: http://ed.ted.com/lessons/how-do-we-measure-distances-in-space-yuan-sen-ting
When we look at the sky, we have a flat, two-dimensional view. S...
View full lesson: http://ed.ted.com/lessons/how-do-we-measure-distances-in-space-yuan-sen-ting
When we look at the sky, we have a flat, two-dimensional view. So how do astronomers figure the distances of stars and galaxies from Earth? Yuan-Sen Ting shows us how trigonometric parallaxes, standard candles and more help us determine the distance of objects several billion light years away from Earth.
Lesson by Yuan-Sen Ting, animation by TED-Ed.
https://wn.com/Light_Seconds,_Light_Years,_Light_Centuries_How_To_Measure_Extreme_Distances_Yuan_Sen_Ting
View full lesson: http://ed.ted.com/lessons/how-do-we-measure-distances-in-space-yuan-sen-ting
When we look at the sky, we have a flat, two-dimensional view. So how do astronomers figure the distances of stars and galaxies from Earth? Yuan-Sen Ting shows us how trigonometric parallaxes, standard candles and more help us determine the distance of objects several billion light years away from Earth.
Lesson by Yuan-Sen Ting, animation by TED-Ed.
- published: 09 Oct 2014
- views: 3482246
3:58
Astronomy - Measuring Distance, Size, and Luminosity (25 of 30) Tully-Fisher Relationship
Visit http://ilectureonline.com for more math and science lectures!
In this video I will explain the Tully-Fisher relationship.
Visit http://ilectureonline.com for more math and science lectures!
In this video I will explain the Tully-Fisher relationship.
https://wn.com/Astronomy_Measuring_Distance,_Size,_And_Luminosity_(25_Of_30)_Tully_Fisher_Relationship
Visit http://ilectureonline.com for more math and science lectures!
In this video I will explain the Tully-Fisher relationship.
- published: 10 Apr 2014
- views: 9620
0:54
Measuring distance to stars #shorts
Let's learn how we can determine the distance to nearby stars using the orbit of the Earth around the Sun as our measuring tape!
Let's learn how we can determine the distance to nearby stars using the orbit of the Earth around the Sun as our measuring tape!
https://wn.com/Measuring_Distance_To_Stars_Shorts
Let's learn how we can determine the distance to nearby stars using the orbit of the Earth around the Sun as our measuring tape!
- published: 09 Sep 2021
- views: 33239
0:56
We Can’t Measure Distance in Outer Space! #shorts
Cosmic distances aren't just difficult to measure. They're impossible.
________________________________
RELATED YOUTUBE VIDEOS
The Cosmic Illusion No One Talks...
Cosmic distances aren't just difficult to measure. They're impossible.
________________________________
RELATED YOUTUBE VIDEOS
The Cosmic Illusion No One Talks About:
https://youtu.be/nSJtzn2H3Do
________________________________
SUPPORT THE SCIENCE ASYLUM
Patreon:
http://www.patreon.com/ScienceAsylum
YouTube Membership:
https://www.youtube.com/channel/UCXgNowiGxwwnLeQ7DXTwXPg/join
Advanced Theoretical Physics (Paperback):
http://www.lulu.com/shop/nick-lucid/advanced-theoretical-physics-a-historical-perspective/paperback/product-24250687.html
Advanced Theoretical Physics (eBook):
https://gumroad.com/l/ubSc
Merchandise:
http://shop.spreadshirt.com/scienceasylum/
________________________________
IMAGE CREDITS
Crab Nebula:
https://www.nasa.gov/multimedia/imagegallery/image_feature_1604.html
https://wn.com/We_Can’T_Measure_Distance_In_Outer_Space_Shorts
Cosmic distances aren't just difficult to measure. They're impossible.
________________________________
RELATED YOUTUBE VIDEOS
The Cosmic Illusion No One Talks About:
https://youtu.be/nSJtzn2H3Do
________________________________
SUPPORT THE SCIENCE ASYLUM
Patreon:
http://www.patreon.com/ScienceAsylum
YouTube Membership:
https://www.youtube.com/channel/UCXgNowiGxwwnLeQ7DXTwXPg/join
Advanced Theoretical Physics (Paperback):
http://www.lulu.com/shop/nick-lucid/advanced-theoretical-physics-a-historical-perspective/paperback/product-24250687.html
Advanced Theoretical Physics (eBook):
https://gumroad.com/l/ubSc
Merchandise:
http://shop.spreadshirt.com/scienceasylum/
________________________________
IMAGE CREDITS
Crab Nebula:
https://www.nasa.gov/multimedia/imagegallery/image_feature_1604.html
- published: 13 Nov 2022
- views: 1236560
11:41
The Oort Cloud: Crash Course Astronomy #22
Now that we’re done with the planets, asteroid belt, and comets, we’re heading to the outskirts of the solar system. Out past Neptune are vast reservoirs of icy...
Now that we’re done with the planets, asteroid belt, and comets, we’re heading to the outskirts of the solar system. Out past Neptune are vast reservoirs of icy bodies that can become comets if they get poked into the inner solar system. The Kuiper Belt is a donut shape aligned with the plane of the solar system; the scattered disk is more eccentric and is the source of short-period comets, and the Oort Cloud which surrounds the solar system out to great distances is the source of long-period comets. These bodies all probably formed closer to the Sun and got flung out to the solar system’s suburbs by gravitational interactions with the outer planets.
Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster
--
Chapters:
Introduction: Where Do Comets Come From? 00:00
Kuiper Belt, Scattered Disk, and Oort Cloud 2:52
Long-Period Comets come from the Oort Cloud 4:03
Short-Period Comets come from the Scattered Disk 4:27
Pluto, Plutinos, and other Kuiper Belt Objects 4:47
Oort Cloud Objects 8:25
Review 10:38
--
PBS Digital Studios: http://youtube.com/pbsdigitalstudios
Follow Phil on Twitter: https://twitter.com/badastronomer
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support CrashCourse on Patreon: http://www.patreon.com/crashcourse
--
PHOTOS/VIDEOS
HD Long Exposure Star Timelapse https://vimeo.com/34172172 [credit: Jeffrey Beach, Beachfront B-Roll]
Fine Structure in the Comet’s Jets http://blogs.esa.int/rosetta/2015/01/16/fine-structure-in-the-comets-jets/ http://en.wikipedia.org/wiki/Protoplanetary_disk#mediaviewer/File:Artist%E2%80%99s_Impression_of_a_Baby_Star_Still_Surrounded_by_a_Protoplanetary_Disc.jpg [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA]
Artist's impression of a protoplanetary disk. [credit: ESO/L. Calçada - ESO]
Creating Gas Giants http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11541 [credit: NASA's Goddard Space Flight Center]
What is a Sungrazing Comet? http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11307 [credit: NASA's Goddard Space Flight Center]
Pluto/Neptune Orbit http://www2.jpl.nasa.gov/files/images/browse/plutoneptune.gif [credit: NASA]
1992 QB1 http://solarsystem.nasa.gov/multimedia/gallery/1992_QB14.jpg [credit: ESO]
Eris http://apod.nasa.gov/apod/ap060918.html [credit: W. M. Keck Observatory]
Moons of Pluto http://en.wikipedia.org/wiki/Kerberos_(moon)#/media/File:Moons_of_Pluto.png [credit: NASA, ESA, and M. Showalter (SETI institute)]
New Horizons Approach http://pluto.jhuapl.edu/common/content/animations/New-Horizons-Voyage-to-Pluto/ApproachingPluto1280.mp4 [credit: JHUAPL]
Moon http://svs.gsfc.nasa.gov/vis/a000000/a003800/a003894/phase04_full.jpg [credit: NASA/Goddard Space Flight Center Scientific Visualization Studio]
Pluto http://solarsystem.nasa.gov/multimedia/display.cfm?Category=Planets&IM_ID=20073 [credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute]
Sedna’s Orbit http://commons.wikimedia.org/wiki/File:Sedna-PIA05569-crop.jpg [credit: NASA]
Artist’s Conception of Kuiper Belt http://en.wikipedia.org/wiki/File:14-281-KuiperBeltObject-ArtistsConcept-20141015.jpg [credit: NASA, Wikimedia Commons]
Kuiper Belt World (video) http://planetquest.jpl.nasa.gov/video/41 [credit: NASA Kepler Mission/Dana Berry]
Pluto Discovery Plates http://azmemory.azlibrary.gov/cdm/singleitem/collection/loaselect/id/25/rec/1 [credit: Clyde Tombaugh, Lowell Observatory]
https://wn.com/The_Oort_Cloud_Crash_Course_Astronomy_22
Now that we’re done with the planets, asteroid belt, and comets, we’re heading to the outskirts of the solar system. Out past Neptune are vast reservoirs of icy bodies that can become comets if they get poked into the inner solar system. The Kuiper Belt is a donut shape aligned with the plane of the solar system; the scattered disk is more eccentric and is the source of short-period comets, and the Oort Cloud which surrounds the solar system out to great distances is the source of long-period comets. These bodies all probably formed closer to the Sun and got flung out to the solar system’s suburbs by gravitational interactions with the outer planets.
Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster
--
Chapters:
Introduction: Where Do Comets Come From? 00:00
Kuiper Belt, Scattered Disk, and Oort Cloud 2:52
Long-Period Comets come from the Oort Cloud 4:03
Short-Period Comets come from the Scattered Disk 4:27
Pluto, Plutinos, and other Kuiper Belt Objects 4:47
Oort Cloud Objects 8:25
Review 10:38
--
PBS Digital Studios: http://youtube.com/pbsdigitalstudios
Follow Phil on Twitter: https://twitter.com/badastronomer
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support CrashCourse on Patreon: http://www.patreon.com/crashcourse
--
PHOTOS/VIDEOS
HD Long Exposure Star Timelapse https://vimeo.com/34172172 [credit: Jeffrey Beach, Beachfront B-Roll]
Fine Structure in the Comet’s Jets http://blogs.esa.int/rosetta/2015/01/16/fine-structure-in-the-comets-jets/ http://en.wikipedia.org/wiki/Protoplanetary_disk#mediaviewer/File:Artist%E2%80%99s_Impression_of_a_Baby_Star_Still_Surrounded_by_a_Protoplanetary_Disc.jpg [credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA]
Artist's impression of a protoplanetary disk. [credit: ESO/L. Calçada - ESO]
Creating Gas Giants http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11541 [credit: NASA's Goddard Space Flight Center]
What is a Sungrazing Comet? http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11307 [credit: NASA's Goddard Space Flight Center]
Pluto/Neptune Orbit http://www2.jpl.nasa.gov/files/images/browse/plutoneptune.gif [credit: NASA]
1992 QB1 http://solarsystem.nasa.gov/multimedia/gallery/1992_QB14.jpg [credit: ESO]
Eris http://apod.nasa.gov/apod/ap060918.html [credit: W. M. Keck Observatory]
Moons of Pluto http://en.wikipedia.org/wiki/Kerberos_(moon)#/media/File:Moons_of_Pluto.png [credit: NASA, ESA, and M. Showalter (SETI institute)]
New Horizons Approach http://pluto.jhuapl.edu/common/content/animations/New-Horizons-Voyage-to-Pluto/ApproachingPluto1280.mp4 [credit: JHUAPL]
Moon http://svs.gsfc.nasa.gov/vis/a000000/a003800/a003894/phase04_full.jpg [credit: NASA/Goddard Space Flight Center Scientific Visualization Studio]
Pluto http://solarsystem.nasa.gov/multimedia/display.cfm?Category=Planets&IM_ID=20073 [credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute]
Sedna’s Orbit http://commons.wikimedia.org/wiki/File:Sedna-PIA05569-crop.jpg [credit: NASA]
Artist’s Conception of Kuiper Belt http://en.wikipedia.org/wiki/File:14-281-KuiperBeltObject-ArtistsConcept-20141015.jpg [credit: NASA, Wikimedia Commons]
Kuiper Belt World (video) http://planetquest.jpl.nasa.gov/video/41 [credit: NASA Kepler Mission/Dana Berry]
Pluto Discovery Plates http://azmemory.azlibrary.gov/cdm/singleitem/collection/loaselect/id/25/rec/1 [credit: Clyde Tombaugh, Lowell Observatory]
- published: 26 Jun 2015
- views: 1941781
28:00
The Cosmic Distance Ladder
We use many tools to get us out to the farthest reaches of the Cosmos. Herein, we summarize the various ways we learn to measure these gargantuan lengths. This...
We use many tools to get us out to the farthest reaches of the Cosmos. Herein, we summarize the various ways we learn to measure these gargantuan lengths. This is part of my complete intro Astronomy class that I taught at Willam Paterson University and CUNY Hunter.
0:00 Introduction
3:01 Hubble's Law
4:00 Steps to Find the Hubble Parameter Ho
5:25 More on the Leavitt P-L Relationship
7:09 Steps up the Cosmic Distance Ladder
7:41 The Astronomical Unit
8:51 Trigonometric Parallaxes
9:57 Spectroscopic Parallaxes
11:49 Cepheid Variable Stars
14:10 Step 5: Galaxy Standard Candles: Desperation....
15:24 Luminosities of Entire Galaxies
18:57 The Tully-Fisher Relation for Spiral Galaxies
21:48 Redshift Distances
23:11 Critical Measurements for the Cosmic Redshift
24:51 There are still things to work out with H.
27:24 The Big Questions
https://wn.com/The_Cosmic_Distance_Ladder
We use many tools to get us out to the farthest reaches of the Cosmos. Herein, we summarize the various ways we learn to measure these gargantuan lengths. This is part of my complete intro Astronomy class that I taught at Willam Paterson University and CUNY Hunter.
0:00 Introduction
3:01 Hubble's Law
4:00 Steps to Find the Hubble Parameter Ho
5:25 More on the Leavitt P-L Relationship
7:09 Steps up the Cosmic Distance Ladder
7:41 The Astronomical Unit
8:51 Trigonometric Parallaxes
9:57 Spectroscopic Parallaxes
11:49 Cepheid Variable Stars
14:10 Step 5: Galaxy Standard Candles: Desperation....
15:24 Luminosities of Entire Galaxies
18:57 The Tully-Fisher Relation for Spiral Galaxies
21:48 Redshift Distances
23:11 Critical Measurements for the Cosmic Redshift
24:51 There are still things to work out with H.
27:24 The Big Questions
- published: 02 Aug 2018
- views: 4785
5:10
Spaced Out: Crash Course Kids #25.1
So... how big is the universe? It's big... really big... no, bigger than that... it's big. In this episode of Crash Course Kids, Sabrina gives us some perspecti...
So... how big is the universe? It's big... really big... no, bigger than that... it's big. In this episode of Crash Course Kids, Sabrina gives us some perspective on this whole universe thing and how we fit into it.
This first series is based on 5th-grade science. We're super excited and hope you enjoy Crash Course Kids!
///Standards Used in This Video///
5-ESS2-1. Develop a model using an example to describe ways the geosphere, biosphere, hydrosphere, and/or atmosphere interact. [Clarification Statement: Examples could include the influence of the ocean on ecosystems, landform shape, and climate; the influence of the atmosphere on landforms and ecosystems through weather and climate; and the influence of mountain ranges on winds and clouds in the atmosphere. The geosphere, hydrosphere, atmosphere, and biosphere are each a system.] [Assessment Boundary: Assessment is limited to the interactions of two systems at a time.]
Want to find Crash Course elsewhere on the internet?
Crash Course Main Channel: https://www.youtube.com/crashcourse
Facebook - https://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/thecrashcourse
Tumblr - http://thecrashcourse.tumblr.com
Credits...
Producer & Editor: Nicholas Jenkins
Cinematographer & Director: Michael Aranda
Host: Sabrina Cruz
Script Supervisor: Mickie Halpern
Writer: Alyson Shaw
Executive Producers: John & Hank Green
Consultant: Shelby Alinsky
Script Editor: Blake de Pastino
Thought Cafe Team:
Stephanie Bailis
Cody Brown
Suzanna Brusikiewicz
Jonathan Corbiere
Nick Counter
Kelsey Heinrichs
Jack Kenedy
Corey MacDonald
Tyler Sammy
Nikkie Stinchcombe
James Tuer
Adam Winnik
https://wn.com/Spaced_Out_Crash_Course_Kids_25.1
So... how big is the universe? It's big... really big... no, bigger than that... it's big. In this episode of Crash Course Kids, Sabrina gives us some perspective on this whole universe thing and how we fit into it.
This first series is based on 5th-grade science. We're super excited and hope you enjoy Crash Course Kids!
///Standards Used in This Video///
5-ESS2-1. Develop a model using an example to describe ways the geosphere, biosphere, hydrosphere, and/or atmosphere interact. [Clarification Statement: Examples could include the influence of the ocean on ecosystems, landform shape, and climate; the influence of the atmosphere on landforms and ecosystems through weather and climate; and the influence of mountain ranges on winds and clouds in the atmosphere. The geosphere, hydrosphere, atmosphere, and biosphere are each a system.] [Assessment Boundary: Assessment is limited to the interactions of two systems at a time.]
Want to find Crash Course elsewhere on the internet?
Crash Course Main Channel: https://www.youtube.com/crashcourse
Facebook - https://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/thecrashcourse
Tumblr - http://thecrashcourse.tumblr.com
Credits...
Producer & Editor: Nicholas Jenkins
Cinematographer & Director: Michael Aranda
Host: Sabrina Cruz
Script Supervisor: Mickie Halpern
Writer: Alyson Shaw
Executive Producers: John & Hank Green
Consultant: Shelby Alinsky
Script Editor: Blake de Pastino
Thought Cafe Team:
Stephanie Bailis
Cody Brown
Suzanna Brusikiewicz
Jonathan Corbiere
Nick Counter
Kelsey Heinrichs
Jack Kenedy
Corey MacDonald
Tyler Sammy
Nikkie Stinchcombe
James Tuer
Adam Winnik
- published: 01 Sep 2015
- views: 383389