NGC 6221 (other designations - ESO 138-3 , AM 1648-590 , IRAS16484-5908 , PGC 59175 ) is a spiral galaxy with a jumper ( SBc ) in the constellation Altar .
| NGC 6221 | |
|---|---|
| Galaxy | |
| Research history | |
| Discoverer | John Herschel |
| opening date | May 3, 1835 |
| Designations | NGC 6221 , ESO 138-3 , AM 1648-590 , IRAS16484-5908 , PGC 59175 |
| Observational data ( Age J2000.0 ) | |
| Constellation | Altar |
| Right ascension | |
| Declination | |
| Visible dimensions | 3.5 '× 2.5' |
| Apparent magnitude m V | 10.1 |
| Photographic magnitude m B | 10.8 |
| Specifications | |
| Type of | Sbc |
| Radial velocity | |
| Redshift | +0.004750 ± 0.000203 |
| Distance | |
| Angular position | 5 ° |
| Surface brightness | 12.3 |
This object is one of those listed in the original edition of the New General Catalog .
Content
See also
- List of Messier objects
- New shared directory
Notes
- ↑ 1 2 R. Brent Tully, Courtois H. M., Sorce J. G. COSMICFLOWS-3 // Astron. J. / J. G. III - IOP Publishing , 2016 .-- Vol. 152, Iss. 2. - P. 50. - ISSN 0004-6256 ; 1538-3881 - doi: 10.3847 / 0004-6256 / 152/2/50
Literature
- NA Levenson, R. Cid Fernandes, Jr., KA Weaver, TM Heckman, and T. Storchi-Bergmann. The Obscuring Starburst of NGC 6221 and Implications for the Hard X-Ray Background // The Astrophysical Journal . - 2001. - DOI : 10.1086 / 321656 .
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 6221 publications