Wikidata facts
- Instance of
- astrophysical X-ray source
- Constellation
- Draco
- Distance from Earth
- 12.93
- Image
- Ngc5866 hst big.png
- Said to be same as
- NGC 5866
Show 9 more facts
- Commons category
- Messier 102
- catalog code
- NGC 5866
- apparent magnitude
- 6.873
- radial velocity
- 788
- redshift
- 0.002528
- right ascension
- 226.623171
- declination
- 55.7633083
- epoch
- J2000.0
- galaxy morphological type
- SAB0
Sources (1)
via Wikidata · CC0
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Encyclopedic overview
Messier 102 (Bluegrass Astro)
Messier 102 (also known as M102) is a galaxy listed in the Messier Catalogue that cannot be unambiguously identified. Its original discoverer Pierre Méchain retracted his discovery two years after publication and said that it was a duplicate observation of Messier 101. Later historical evidence favors that M102 is actually the galaxy NGC 5866, although other galaxies have been suggested as possible identities. The National Aeronautics and Space Administration (NASA) considers it to be the same as NGC 5866.
Excerpted from Wikipedia’s “Messier 102” article, available under the CC BY-SA 4.0 licence.