NGC 806 is a spiral galaxy approximately 166 million light-years away from Earth in the constellation Cetus.[1] It was discovered by American astronomer Lewis A. Swift on November 1, 1886 with the 16" refractor at Warner Observatory.[4]
Interaction with galaxy PGC 3100716
![](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/NGC_0806_SDSS.jpg/220px-NGC_0806_SDSS.jpg)
NGC 806 and PGC 3100716 form a pair of galaxies in gravitational interaction. These two galaxies are either colliding or are the result of a collision.[5]
PGC 3100716 is a spiral galaxy with an apparent size of 0.09 by 0.08 arcmin.[1] It was not included in the original version of the New General Catalogue, and was later added as NGC 806-2.[3]
See also
References
- ^ a b c d e f g h "NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved November 29, 2017.
- ^ 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
- ^ a b c "Revised NGC Data for NGC 806". spider.seds.org. Retrieved December 9, 2017.
- ^ "Data for NGC 806". www.astronomy-mall.com. Retrieved December 9, 2017.
- ^ "Celestial Atlas". cseligman.com. Archived from the original on November 19, 2017. Retrieved December 2, 2017.
External links
- NGC 806 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- SEDS
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