Deep Sky Object in Spring
NGC3981 (Galaxy in Crater)
|Date & Time: ||Jan 24 2015, from 28:03 to 28:47 JST(+0900)
|Composed 8 shots with 6 minutes exposed|
|Optical: ||Meade 25cm(10") Schmidt-Cassegrain with a conversion lens (f=1600mm, F6.3)
|with BaaderPlanetarium Moon&Skyglow filter|
|Auto-guided with Meade LX200 Equatorial & Pictor 201XT
|Digital Camera: ||Canon EOS 600D (Remodeled)
|Location: ||Ooizumi, Hokuto city, Yamanashi pref.
|Camera Settings: ||Recording format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)|
At the eastern edge of the Crater, you can find out a small galaxy of NGC3981 at the border line with the Corvus.
The galaxy has a shape being elongated in north-south direction and two clear arms stretched, has a long axis of about a bit longer than 5 arc minutes.
Images captured with larger-telescopes can show us that the galaxy has dimmed nebula-like structures surrounding.
NGC3981 is lying at about 80 million light years away and forming a small-scaled galaxy group with the "Antennae" colliding galaxy pair positioned at about 1.5 degrees northeast in Corvus.
|NGC3981 / Galaxy, type SA(rs)bc|
|R.A.||11h 56m 07.2s (2000.0)|
|Dec.||-19°53' 46" (2000.0)|
|Distance||80 million light yrs.|
|Group of Galaxies||NGC4038 Group|
|Other IDs||UGCA 255, ESO 572-20|
Arp 289, MCG -3-31-1
IRAS 11535-1937, PGC 37496