Deep Sky Object in Autumn
UGC12613 (Pegasus Dwarf Irregular Galaxy)


Date & Time: Jan 3 2022, from 19:01 to 19:55 JST(+0900)
Composed 10 shots with 6 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 & Lacerta M-GEN
Digital Camera: Nikon D810A
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(4080×4080)
Device Size...20×20mm
Sensitivity...ISO4000, White Balance...Daylight


UGC12613 / Galaxy, type Dwarf Irr
R.A.23h 28m 34.1s (2000.0)
Dec.+14°44' 48" (2000.0)
Apparent Size8.3×2.5'
Radial Velocity-182km/s
Magnitude12.6
Distance3 million light yrs.
Group of GalaxiesLocal Group
Other IDsCGCG 431-72, MCG +2-59-46
DDO 216, PGC 71538
This image shows a medium-scaled irregular galaxy positioned at 5.7 degrees east of alpha Pegasi. The galaxy has an 8 arc minutes-sized elliptical shape but comparatively dimmed, discovered in 1950s. UGC12613 is belonging to the Local Galaxy Group; it is known that the galaxy is a companion of the Andromeda Galaxy (M31). The distance has been estimated as 3 million light years.



UGC1281
Cart Wheel Galaxy

Copyright(c) 2022 by Naoyuki Kurita, All rights reserved.
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