NGC 5557 (other designations - UGC 9161 , MCG 6-31-93 , ZWG 191.74 , PGC 51104 ) is an elliptical galaxy ( E1 ) in the constellation Bootes .
| NGC 5557 | |
|---|---|
| Galaxy | |
| Research history | |
| Discoverer | William Herschel |
| opening date | May 1, 1785 |
| Designations | NGC 5557 , UGC 9161 , MCG 6-31-93 , ZWG 191.74 , PGC 51104 |
| Observational data ( Epoch J2000.0 ) | |
| Constellation | Bootes |
| Right ascension | |
| Declination | |
| Visible dimensions | 2.4 '× 1.9' |
| Visible magnitude m V | 10.9 |
| Photographic magnitude m B | 11.9 |
| Specifications | |
| Type of | E1 |
| Redshift | +0,010764 ± 0,000093 |
| Angular position | 105 ° |
| Surface brightness | 12.6 |
This object is one of those listed in the original edition of the New General Catalog .
See also
- List of Messier Objects
- New shared directory
Links
- Information in English and French from the original New Shared Catalog
- Information (English) from the Revised “New Common Directory”
- SIMBAD (eng.)
- VizieR (eng.)
- NASA / IPAC Extragalactic Database (English)
- List of publications dedicated to NGC 5557