NGC 6557 (other designations - ESO 45-1 , AM 1814-763 , PGC 61770 ) is a lenticular galaxy ( S0 ) in the constellation Octant .
| NGC 6557 | |
|---|---|
| Galaxy | |
| Research history | |
| Discoverer | John herschel |
| opening date | June 30, 1835 |
| Designations | NGC 6557 , ESO 45-1 , AM 1814-763 , PGC 61770 |
| Observational data ( Epoch J2000.0 ) | |
| Constellation | Octant |
| Right ascension | |
| Declination | |
| Visible dimensions | 1.6 '× 1.1' |
| Visible magnitude m V | 12.9 |
| Photographic magnitude m B | 13.9 |
| Specifications | |
| Type of | S0 |
| Redshift | +0,018519 ± 0,000020 |
| Angular position | 80 ° |
| Surface brightness | 13.4 |
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 6557