NGC 2090
NGC 2090 is a spiral galaxy located approximately 40 million light-years from the Solar System[2] in the Columba constellation. It was discovered on 29 October 1826 by Scottish astronomer James Dunlop.[4] NGC 2090 was studied to refine the Hubble constant to an accuracy within ±10%.[1]
NGC 2090
| NGC 2090 | |
|---|---|
| Observation data (J2000 epoch) | |
| Constellation | Columba |
| Right ascension | 05h 48m 22.3s [1] |
| Declination | −34° 13′ 37″[1] |
| Distance (comoving) | 12.3 ± .9 Mpc (40.1 ± 2.9 Mly)h−1 0.73 |
| Distance | 40 Mly[2] |
| Apparent magnitude (B) | 30.76[1] |
| Characteristics | |
| Type | Sc II |
References
- "Cepheid Distance to NGC 2090". doi:10.1086/305766. Cite journal requires
|journal=(help) - An object's distance from Earth can be determined using Hubble's law: v=Ho is Hubble's constant (70±5 (km/s)/Mpc). The relative uncertainty Δd/d divided by the distance is equal to the sum of the relative uncertainties of the velocity and v=Ho
- "NGC 2090".
- "New General Catalog Objects: NGC 2050 - 2099". cseligman.com. Retrieved 2017-12-14.
External links
 |
Wikimedia Commons has media related to NGC 2090. |
- NGC 2090 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- SEDS
| Stars |
| ||||||||
|---|---|---|---|---|---|---|---|---|---|
| |||||||||
| |||||||||
| Galaxies |
| ||||||||
 | |||||||||
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.