Deep Sky Object in Autumn
Around NGC877 (Galaxies in Aries)


Date & Time: Oct 7 2023, from 24:57 to 25:27 JST(+0900)
6 shots composed with 6 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with IDAS LPS-P1 Light-pollution suppression 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


NGC876 / Galaxy, type SAc: sp
R.A.02h 17m 53.2s (2000.0)
Dec.+14°31' 17" (2000.0)
Apparent Size2.1×0.4'
Radial Velocity+3860km/s
Magnitude14.5
Distance150 million light yrs.
Group of Galaxies -
Other IDsUGC 1766, MCG +2-6-57
PGC 8770
NGC877 / Galaxy, type SAB(rs)bc I-II
R.A.02h 17m 59.5s (2000.0)
Dec.+14°32' 46" (2000.0)
Apparent Size2.4×1.8'
Radial Velocity+3983km/s
Magnitude12.9
Distance150 million light yrs.
Group of Galaxies -
Other IDsUGC 1768, CGCG 438-52
MCG +2-6-58, PGC 8775
In southern region of Aries, this image shows you a small-scaled galaxy group positioned about 9 degrees south of Alpha Ari, Hamal. A central face-on galaxy is NGC877 with an apparent diameter of a bit larger than 2 arc minutes and a brightness of about 13th magnitude. A minor edge-on in 3 arc minutes southwest has a number of NGC876. And you can detect another compact galaxy of NGC871 in 6 arc minutes west from those two galaxies. These three and surrounding tiny galaxies are forming a small group, it's estimated that the group is about 150 millions light years away.



NGC864
NGC891

Copyright(c) 2023 by Naoyuki Kurita, All rights reserved.
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