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NGC 4440 is a barred spiral galaxy located about 55 million light-years away[3] in the constellation of Virgo.[4] NGC 4440 was discovered by astronomer William Herschel on April 17, 1784.[5] It is a member of the Virgo Cluster.[6]
Physical characteristics
NGC 4440 has a strong bar in its structure. Surrounding the bar, there are two very open spiral arms.[7]
See also
References
- ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 4440. Retrieved 2017-09-30.
- ^ "parsecs to lightyears conversion". Retrieved 2017-09-30.
- ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-09-30.
- ^ Rojas, Sebastián García. "Galaxy NGC 4440 - Barred Spiral Galaxy in Virgo Constellation · Deep Sky Objects Browser". DSO Browser. Archived from the original on 2017-10-01. Retrieved 2017-09-30.
- ^ "New General Catalog Objects: NGC 4400 - 4449". cseligman.com. Retrieved 2017-09-30.
- ^ "Detailed Object Classifications". ned.ipac.caltech.edu. Retrieved 2017-09-30.
- ^ "NGC 4440 - SB(rs)a". The De Vaucouleurs Atlas of Galaxies. Archived from the original on 2019-03-02. Retrieved 2017-09-30.
External links
- NGC 4440 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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