Deep Sky Object in Spring
NGC2992, NGC2993 (Galaxies in Hydra)

Date & Time: Jan 9 2016, from 23:57 to 25:09 JST(+0900)
Composed 8 shots with 10 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with a conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium UV/IR cut filter
Auto-guided with Meade LX200 Eqatorial & 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)
CCD Sensitivity...ISO1600

NGC2992 / Galaxy, type S0 pec sp
R.A.09h 45m 42.1s (2000.0)
Dec.-14° 19' 39" (2000.0)
Apparent Size3.5×1.1'
Radial VelocityN/A
Group of GalaxiesN/A
Other IDsMCG-2-25-14, ARP245
IRAS09432-1405, PGC27982
NGC2993 / Galaxy, type I0? pec
R.A.09h 45m 48.4s (2000.0)
Dec.-14° 22' 08" (2000.0)
Apparent Size1.3×0.9'
Radial VelocityN/A
Group of GalaxiesN/A
Other IDsMCG-2-25-15, ARP245
IRAS09434-1408, PGC27991
This image shows you a galactic pair with an interval of 3 arc minutes positioned about 7 degrees southeast from Alphard, alpha Hya. A northern one has a number of NGC2992 and southern galaxy is NGC2993. NGC2992, northern galaxy, has a unique feature that the galaxy has a dimmed light belt like a tongue stretching toward northern direction. It's considered that the anomalous shape has been formed by a gravitational interaction with a neighboring galaxy NGC2993. The tongue-like light has a length of about over 3 arc minutes by estimating from this picture.

NGC2964 & NGC2968


Copyright(c) 2016 by Naoyuki Kurita, All rights reserved.
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