Deep Sky Object in Winter
NGC2207 & IC2163 (Galaxies in Canis Major)
|Date & Time: ||Nov 17 2012, from 26:18 to 27:00 JST(+0900)
|6 shots composed with 8 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)|
This image shows you a pair of small galaxies positioned at western region of Canis Major.
You can find that about 3.5 degrees southwest of beta CMa. But the galaxies are fainter than 11th magnitude,
you need a telescope over 8" in aperture to catch in your naked eyes.
|NGC2207 / Galaxy, type SAB(r)c pec II|
|R.A.||06h 16m 22.0s (2000.0)|
|Dec.||-21° 22' 21" (2000.0)|
|Group of Galaxies||N/A|
|Other IDs||ESO556-8, MCG-4-15-20|
|IC2163 / Galaxy, type SB(rs)c pec|
|R.A.||06h 16m 27.7s (2000.0)|
|Dec.||-21° 22' 31" (2000.0)|
|Froup of Galaxies||N/A|
|Other IDs||ESO556-9, MCG-4-15-21|
A right galaxy in this image is NGC2207, and another left one has a number of IC2163.
This field is equivalent to western edge of the Milky Way in winter, many faint stars are distributed around the pair.
This pair has gravitational interactions each other,
and it's considered that the galaxies are colliding pair represented by the Antennae in Corvus.
The Hubble Space Telescope (HST) has captured a clear image of NGC2207 and IC2163, and the image shows us their arms are warped by mutual gravitation.