NGC 87 (other designations - ESO 194-8 , PGC 1357 , AM 0018-485 ) - a dim galaxy of the southern hemisphere of the sky, located in the constellation Phoenix ; Together with NGC 88 , NGC 89 and NGC 92, it is part of the Robert Quartet , a compact group of interacting galaxies. This object is one of those listed in the original edition of the New General Catalog .
| NGC 87 | |
|---|---|
| Galaxy | |
 Robert Quartet. NGC 87 - on the right. | |
| Research history | |
| Discoverer | John Herschel |
| opening date | September 30, 1834 |
| Designations | NGC 87 , ESO 194-8 , PGC 1357 , AM 0018-485 |
| Observational data ( Age J2000.0 ) | |
| Constellation | Phoenix |
| Right ascension | |
| Declination | |
| Visible dimensions | 0.9 ′ × 0.7 ′ |
| Apparent magnitude m V | 14.1 |
| Photographic magnitude m B | 14.7 |
| Specifications | |
| Type of | IBm / P |
| Redshift | +0.011828 ± 0.000320 |
| Distance | 160 million St. years old |
| Angular position | 171 ° |
| Surface brightness | 13,4 |
NGC 87 is a low-mass irregular galaxy resembling a satellite of the Milky Way - the Large Magellanic Cloud . Like most irregular galaxies, NGC 87 does not have a clear structure and core. Due to the presence of more than 50 regions of intense star formation, the galaxy has a blue color. [1] In 1994, a flare of a supernova of the second type was detected in the galaxy, which had, at the moment of detection, a brightness of +14.6 m - SN 1994Z. [2]
See also
- List of Messier objects
- New shared directory
Links
- Information in English and French from the original “ New General Catalog ”
- Information (Eng.) From the Revised New General Catalog
- SIMBAD
- VizieR (English)
- NASA / IPAC Extragalactic Database
- List of NGC 87 publications
Notes
- ↑ Borchkhadze, TM Sixteen southern interacting galaxy systems with emission lines // Astronomy and Astrophysics Supplement Series. - 1977.- T. 30 . - S. 35-43 .
- ↑ Supernova 1994Z in NGC 87 (inaccessible link - history ) . telegram . MAS (October 4, 1994). Date of treatment December 1, 2008.