NGC 4725 (other designations are UGC 7989 , MCG 4-30-22 , ZWG 129.27 , KUG 1247 + 257B , IRAS12478 + 2545 , PGC 43451 ) is a spiral galaxy with a jumper in the constellation Veronica Hair . It is located at a distance of about 40 million light years from Earth. NGC 4725 is a Seyfert galaxy , it is assumed that there is an active galactic nucleus containing a supermassive black hole . The galaxy is the brightest representative of the group of hair galaxies Veronica I.
| NGC 4725 | |
|---|---|
| Galaxy | |
 | |
| Research history | |
| Discoverer | William Herschel |
| opening date | April 10, 1785 |
| Designations | NGC 4725 , UGC 7989 , MCG 4-30-22 , ZWG 129.27 , KUG 1247 + 257B , IRAS12478 + 2545 , PGC 43451 |
| Observational data ( Age J2000.0 ) | |
| Constellation | Veronica's hair |
| Right ascension | |
| Declination | |
| Visible dimensions | 10.7 '× 7.6' |
| Apparent magnitude m V | 9.3 |
| Photographic magnitude m B | 10.1 |
| Characteristics | |
| Type of | SBab / P |
| Radial velocity | |
| Redshift | +0.004033 ± 0.000010 |
| Distance | |
| Angular position | 35 ° |
| Surface brightness | 13.9 |
This object is one of those listed in the original edition of the New General Catalog .
Content
- 1 See also
- 2 notes
- 3 Literature
- 4 References
See also
- List of Messier objects
- New shared directory
Notes
- ↑ Masters K. L. Groups of Galaxies in the Two Micron All Sky Redshift Survey // The Astrophysical Journal Letters - 2007. - Vol. 655, Iss. 2. - P. 790–813. - doi: 10.1086 / 510201 - arXiv: astro-ph / 0610732
- ↑ 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
- ↑ Filippenko A. V. A Search for “Dwarf Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies // The Astrophysical Journal : Supplement Series - 1997 .-- T. 112, no. 2. - S. 315-390. - ISSN 0067-0049 ; 1538-4365 - doi: 10.1086 / 313041
Literature
- Brad K. Gibson, Shaun MG Hughes, Peter B. Stetson, Wendy L. Freedman, Robert C. Kennicutt, Jr., Jeremy R. Mold, Fabio Bresolin, Laura Ferrarese, Holland C. Ford, John A. Graham, Mingsheng Han , Paul Harding, John G. Hoessel, John P. Huchra, Garth D. Illingworth, Daniel D. Kelson, Lucas M. Macri, Barry F. Madore, Randy L. Phelps, Charles F. Prosser, Abhijit Saha, Shoko Sakai, Kim M. Sebo, Nancy A. Silbermann, and Anne M. Turner. The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. Xvii. The Cepheid Distance to NGC 4725 (Eng.) // The Astrophysical Journal . - 1999. - DOI : 10.1086 / 306762 .
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
- NGC 4725 Publication List