NGC 3626

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NGC 3626
Observation data
Constellation Leo
Right ascension 11h 20m 03.8s
Declination +18° 21′ 25″
Redshift 1493 km/s
Distance 70 million ly
Apparent magnitude (V) +10.6/+10.9
Type Sb (S0/Sa)
Apparent size (V) 2′.7 × 1′.9 (3′)
Other designations
Caldwell 40
See also: Galaxy, List of galaxies

NGC 3626, also Caldwell 40, is a medium-tightness spiral galaxy and Caldwell object in the constellation Leo. In the Catalogue of Named Galaxies, it is called Diplothrix Leonis, or the double-hair galaxy.[1] It was discovered by William Herschel, on 14 March 1784. It shines at magnitude +10.6[2]/+10.9. Its celestial coordinates are RA 11h 20.1m, dec +18° 21′. It is located near the naked-eye class A4 star Zosma, as well as galaxies NGC 3608, NGC 3607, NGC 3659, NGC 3686, NGC 3684, NGC 3691, NGC 3681, and NGC 3655. Its dimensions are 2′.7 × 1′.9.[2] The galaxy belongs to the NGC 3607 group some 70 million light-years distant, itself one of the many Leo II groups.[3]


  1. ^ Bodifee, Gerard. "Catalogue of One Thousand Named Galaxies" (PDF). Retrieved 21 May 2017. 
  2. ^ a b Erdmann, Jr., Robert E. (1996–2008). "Object Data". The NGC / IC Project. Retrieved 2008-08-11. 
  3. ^ Powell, Richard (2006). "The Leo II Groups". Atlas of The Universe. Retrieved 2008-08-11. 


  • Bratton, Mark (2011). The Complete Guide to the Herschel Objects. Cambridge University Press. ISBN 978-0-521-76892-4. 
  • Pasachoff, Jay M. (2000). "Atlas of the Sky". Stars and Planets. New York, NY: Peterson Field Guides. ISBN 0-395-93432-X. 
  • Caldwell-Moore, Sir Patrick (2003). Firefly Atlas of the Universe. Firefly Books Limited. ISBN 1-55297-819-2. 

External links[edit]

Coordinates: Sky map 11h 20m 03.8s, +18° 21′ 25″