Deep Sky Object in Spring
UGCA205 (Sextans A)

Date & Time: Mar 16 2013, from 25:14 to 26:05 JST(+0900)
Composed 6 shots with 10 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with 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)

UGCA205 / Galaxy, type IBm
R.A.10h 11m 00.5s (2000.0)
Dec.-04°41' 57" (2000.0)
Apparent Size5.7×5.1'
Radial Velocity+374km/s
Distance4.7 million light yrs.
Group of GalaxiesLocal Group
Other IDsMCG -1-26-30, DDO 75
PGC 29653
UGCA205 is a dimmed dwarf galaxy in about 4 degrees south of alpha Sextantis, positioned in center of the constellation. The galaxy is known as "Sextans A", belongs to the Local Group with our Galaxy. A distance has been estimated about 4.7 million light years, one of the most distant galaxies in the Local Group. The galaxy is very dimmed, it's difficult to recognize with eyes through telescopes. This image shows you the galaxy as an uneven round shape. The galaxy has a real diameter of about 10 thousand light years, only one tenth of that of our Galaxy.

Arp 248


Copyright(c) 2013 by Naoyuki Kurita, All rights reserved.
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