Messier 81 (Q81102410)

Two Micron All-Sky Survey, Extended source catalogue

1 reference

NGC 3031

New General Catalogue

1 reference

UGC 5318

Uppsala General Catalogue

1 reference

IRAS F09514+6918

1 reference

IRAS 09514+6918

1 reference

1ES 0951+69.3

Einstein Slew survey, Version No. 1

1 reference

RBS 808

ROSAT All-Sky Survey Bright Source Catalogue

1 reference

1RXS J095534.7+690338

1 reference

UZC J095535.5+690352

Updated Zwicky Catalog

1 reference

PSCz Q09514+6918

1 reference

NVSS J095533+690355

1 reference

SDSS J095533.16+690355.1

Sloan Digital Sky Survey

1 reference

SDSS J095533.14+690355.2

Sloan Digital Sky Survey

1 reference

LEDA 28630

Lyon-Meudon Extragalactic Database

1 reference

RX J095532+69038

X-ray survey of the Large Magellanic Cloud by ROSAT

1 reference

SPB 115

Nearby galaxies. I. The catalogue

1 reference

Warm IRAS sources. I. A catalogue of AGN candidates from the point source catalog

Gaia DR1 1070470605109644672

1 reference

[DML87] 630

1 reference

[VDD93] 99

IRAS CPC observations of galaxies. I. Catalog and atlas

1 reference

RX J0955.5+6903

X-ray survey of the Large Magellanic Cloud by ROSAT

1 reference

RX J095533.4+690353

X-ray survey of the Large Magellanic Cloud by ROSAT

1 reference

[ZEH2003] RX J0955.5+6903 1

The Hamburg/RASS Catalogue of optical identifications. Northern high-galactic latitude ROSAT Bright Source Catalogue X-ray sources

1 reference

GB6 B0951+6918

The GB6 catalog of radio sources

1 reference

[NKB95] N3031

A radio continuum survey of Shapley-Ames Galaxies at {lambda}2.8 cm. I. Atlas of radio data

1 reference

Catalogue of Galaxies and Clusters of Galaxies

Gaia DR2 1070470609404512512

1 reference

Gaia DR3 1070470609404512512

1 reference

Z 333-7

1 reference

Z 0951.4+6918

Catalogue of Galaxies and Clusters of Galaxies

1 reference

discoverer or inventor

Johann Elert Bode

1 reference

http://www.messier.seds.org/m/m081.html

title

Messier 81 (English)

time of discovery or invention

7 November 2017

author name string

Hartmut Frommert

31 December 1774^Gregorian

1 reference

http://www.messier.seds.org/m/m081.html

Messier 81 (English)

7 November 2017

Hartmut Frommert

1 reference

inferred from equatorial coordinates

child astronomical body

Holmberg IX

0 references

redshift

−0.00014±0.00004

1 reference

7 November 2017

−0.00010

1 reference

The complete census of optically selected AGNs in the Coma supercluster: the dependence of AGN activity on the local environment

−0.000113±0.000013

1 reference

Third Reference Catalogue of Bright Galaxies, Version 9

−0.00014±0.00004

1 reference

Comparison LEDA/SIMBAD octobre 2002. Catalogue to be published in 2003

distance from Earth

12,000,000 light-year

1 reference

http://www.messier.seds.org/m/m081.html

title

Messier 81 (English)

7 November 2017

author name string

Hartmut Frommert

3.70 megaparsec

2 references

The Local Tully-Fisher relation for dwarf galaxies

Morphological properties of galaxies in different Local Volume environments

3.61 megaparsec

1 reference

Cosmicflows-3

3.61±0.06 megaparsec

1 reference

Cosmicflows-2: the data

3.64 megaparsec

1 reference

The mid-infrared high-ionization lines from active galactic nuclei and star-forming galaxies

4.3±0.7 megaparsec

1 reference

Our Peculiar Motion Away from the Local Void

3.77 megaparsec

1 reference

Our Peculiar Motion Away from the Local Void

3.6 megaparsec

1 reference

The GALEX Ultraviolet Atlas of Nearby Galaxies

4.11 megaparsec

1 reference

Groups of Galaxies in the Two Micron All Sky Redshift Survey

3.39±0.3 megaparsec

1 reference

3.63 megaparsec

1 reference

A GALEX ultraviolet imaging survey of galaxies in the local volume

3.89±0.25 megaparsec

1 reference

Insights into the Cepheid distance scale

3.47±0.33 megaparsec

1 reference

Insights into the Cepheid distance scale

3.55±0.34 megaparsec

1 reference

Insights into the Cepheid distance scale

3.55±0.13 megaparsec

1 reference

Optical spectroscopy and nebular oxygen abundances of the Spitzer/SINGS galaxies

3.5975 megaparsec

1 reference

parallax

0.1495±0.06 milliarcsecond

1 reference

declination component of proper motion

−0.072±0.063 milliarcsecond per year

1 reference

−0.019±0.002 milliarcsecond per year

1 reference

The VLBA Extragalactic Proper Motion Catalog and a Measurement of the Secular Aberration Drift

right ascension component of proper motion

0.278±0.059 milliarcsecond per year

1 reference

−0.005±0.002 milliarcsecond per year

1 reference

The VLBA Extragalactic Proper Motion Catalog and a Measurement of the Secular Aberration Drift

radial velocity

−38 kilometre per second

2 references

Cosmicflows-3

Galaxy groups: a 2MASS catalog

−35 kilometre per second

1 reference

Groups of Galaxies in the Two Micron All Sky Redshift Survey

−37 kilometre per second

1 reference

A Search for “Dwarf'' Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies

−49 kilometre per second

2 references

A search for 'dwarf' Seyfert nuclei. 2: an optical spectral atlas of the nuclei of nearby galaxies

A catalog of recent supernovae

−34 kilometre per second

1 reference

Recalibration of the H-0.5-magnitudes of spiral galaxies

122 kilometre per second

1 reference

General study of group membership. II. Determination of nearby groups

−44 kilometre per second

1 reference

Uppsala General Catalogue of Galaxies. Data for 12,921 galaxies north of delta =-2 30

−42 kilometre per second

1 reference

Comparison LEDA/SIMBAD octobre 2002. Catalogue to be published in 2003

galaxy morphological type

SA(s)ab

1 reference

NASA/IPAC Extragalactic Database

http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=M+81&extend=no&list_limit=5

7 November 2017

SAab

1 reference

A catalog of visually classified galaxies in the local (z ~ 0.01) universe

SA

1 reference

The systematics of galaxy morphology in the comprehensive de Vaucouleurs revised Hubble-Sandage classification system: application to the EFIGI sample

The GALEX Ultraviolet Atlas of Nearby Galaxies

7.89±0.03

1 reference

The GALEX Ultraviolet Atlas of Nearby Galaxies

6.94±0.03

1 reference

The Two Micron All Sky Survey (2MASS)

4.76±0.016

1 reference

The Two Micron All Sky Survey (2MASS)

4.09±0.018

1 reference

The Two Micron All Sky Survey (2MASS)

3.831±0.018

1 reference

11.673±0.002

2 references

The seventh data release of the Sloan Digital Sky Survey

9.635±0.002

2 references

The seventh data release of the Sloan Digital Sky Survey

8.708±0.004

2 references

The seventh data release of the Sloan Digital Sky Survey

8.373±0.005

2 references

The seventh data release of the Sloan Digital Sky Survey

7.921±0.002

2 references

The seventh data release of the Sloan Digital Sky Survey

15.130657±0.009088

1 reference

imported from Wikimedia project

radius

35,000 light-year

1 reference

2 references

The second realization of the international celestial reference frame by very long baseline interferometry

right ascension

148.88821939854 degree

1 reference

declination

69.06529514038 degree

1 reference

imported from Wikimedia project

Commons gallery

Messier 81

0 references

Commons category

Messier 81

1 reference

English Wikipedia

topic's main category

Category:Messier 81

0 references

Identifiers

J9U ID

987007549187505171

1 reference

National Library of Israel

Library of Congress authority ID

sh93008380

2 references

https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap

3 April 2019

2 May 2019

Encyclopædia Britannica Online ID

topic/M81

subject named as

M81

0 references

1 reference

28 October 2013

New General Catalogue ID

3031

0 references

Principal Galaxies Catalogue ID

28630

1 reference

http://haroldcorwin.net/rc3/rc39b.csv.gz