Deep Sky Object in Spring
Abell 634 & NGC2549 (Galaxy Cluster & Galaxy in Lynx)


Date & Time: Feb 22 2025, from 20:40 to 22:39 JST(+0900)
Mosaic of 2 flames with 6min. × 10shots
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


NGC2549 / Galaxy, type SA(r)0^ sp
R.A.08h 18m 58.4s (2000.0)
Dec.+57°48' 11" (2000.0)
Apparent Size4.3×1.4'
Radial Velocity+1070km/s
Magnitude12.2
Distance48 million light yrs.
Group of Galaxies -
Other IDsUGC 4313, CGCG 287-69
MCG +10-12-124, PGC 23313
Abell 634 / Galaxy Cluster, type 0 3 III
R.A.08h 14m 36.0s (2000.0)
Dec.+58°02' 00" (2000.0)
Apparent Size28.0'
# Galaxies40
Red ShiftN/A
Magnitude14.9
Distance350 million light yrs.
Supergalactic cluster -
This picture shows you a medium-scaled lenticular galaxy and a neighboring galaxy cluster at the northeast edge of Lynx. They can be found by tracing 3.3 degrees southwest from ο UMa at the nose of Big Bear.
NGC2549 at the lower left-hand side has a spindle appearance with a length of a bit longer than 4 arc minutes in north-south direction, is floating at about 48 million light years away.
At about 40 arc minutes WNW of NGC2549, a galaxy cluster Abell 634 is lying. The cluster contains about 40 galaxies in a span of 28 arc minutes. The distance to this cluster has been estimated as about 350 million light years.
Numbers with 4 digits represent NGC #



Abell 569
Abell 727 & UGC4704

Copyright(c) 2025 by Naoyuki Kurita, All rights reserved.
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