NGC 1022
In today's world, NGC 1022 has become a topic of great relevance and interest to a wide audience. With the advancement of technology and globalization, NGC 1022 has taken a fundamental role in our lives, impacting various aspects of society, culture and economy. Throughout history, NGC 1022 has been the subject of study, debate and controversy, generating conflicting opinions and strong emotions. This article aims to delve into the world of NGC 1022, exploring its different dimensions and offering a comprehensive perspective that allows the reader to understand its importance and relevance in today's world.
| NGC 1022 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Constellation | Cetus |
| Right ascension | 02h 38m 32.74s[1] |
| Declination | −06° 40′ 38.96″[1] |
| Redshift | 0.004847[1] |
| Heliocentric radial velocity | 1,453 km/s |
| Distance | 67.7 Mly (20.75 Mpc)[1] |
| Apparent magnitude (V) | 11.34±0.13[2] |
| Apparent magnitude (B) | 12.09±0.13[2] |
| Characteristics | |
| Type | SBa[1] (R')SB(s)a;HII[2] SBa(r)p[3] |
| Apparent size (V) | 2.4′ × 2.0′[2] |
| Other designations | |
| NGC 1022, PGC 10010 | |
NGC 1022 is a barred spiral galaxy located approximately 68[1] million light years away in the equatorial constellation of Cetus. It was discovered on September 10, 1785, by William Herschel. NGC 1022 is a member of the Cetus-Aries group of galaxies.[3]
This galaxy has a morphological classification SBa,[1] indicating a central bar and tightly wound spiral arms. The elliptical outline of the galaxy has an isophotal axis ratio of 0.78[1] with an angular size of 2.4′ by 2.0′ and a position angle of 115°.[2] The galactic plane is inclined at an angle of 24° to the line of sight from the Earth. The central bar is boxy in shape with narrow spurs that are offset from the main axis.[4]
NGC 1022 is forming new stars at an estimated rate of 1.1 solar masses per year. Infrared observations of the nucleus suggests a high rate of star formation activity.[5] The circumnuclear region is home to three giant H II regions with one at the nucleus, a second to the northeast, and the third slightly to the northwest.[3] The galaxy was observed as part of a Hubble study of black holes.[6]
References
- ^ a b c d e f g h Ann, H. B.; et al. (2015). "A Catalog of Visually Classified Galaxies in the Local (z ~ 0.01) Universe". The Astrophysical Journal Supplement Series. 217 (2): 27–49. arXiv:1502.03545. Bibcode:2015ApJS..217...27A. doi:10.1088/0067-0049/217/2/27. S2CID 119253507.
- ^ a b c d e Gil de Paz, Armando; et al. (December 2007). "The GALEX Ultraviolet Atlas of Nearby Galaxies". The Astrophysical Journal Supplement Series. 173 (2): 185–255. arXiv:astro-ph/0606440. Bibcode:2007ApJS..173..185G. doi:10.1086/516636. S2CID 119085482.
- ^ a b c Franco, José; et al. (November 2000). "Decreasing Density Gradients in Circumnuclear H II Regions of Barred Galaxies NGC 1022, NGC 1326, and NGC 4314". The Astrophysical Journal. 544 (1): 277–282. arXiv:astro-ph/0007040. Bibcode:2000ApJ...544..277F. doi:10.1086/317189. S2CID 119012558.
- ^ Erwin, Peter; Debattista, Victor P. (June 2013). "Peanuts at an angle: detecting and measuring the three-dimensional structure of bars in moderately inclined galaxies". Monthly Notices of the Royal Astronomical Society. 431 (4): 3060–3086. arXiv:1301.0638. Bibcode:2013MNRAS.431.3060E. doi:10.1093/mnras/stt385.
- ^ Garcia-Barreto, J. A.; et al. (December 1991). "Circumnuclear star formation in the barred galaxy NGC 1022". Astronomy and Astrophysics. 252: 19. Bibcode:1991A&A...252...19G.
- ^ Garner, Rob (2020-01-24). "Hubble Sees Dusty Galaxy With Supermassive Center". NASA. Retrieved 2020-06-17.
External links
- "NASA/IPAC Extragalactic Database". Results for NGC 1022. Retrieved 2016-11-01.
- "Supermassive Influence". www.spacetelescope.org/. Retrieved 20 January 2020.
- "DSO Browser". Galaxy NGC 1022. Retrieved 2016-11-24.
Media related to NGC 1022 at Wikimedia Commons
