Deep Sky Object in Spring
NGC4298 & NGC4302 (Galaxies in Coma Berenices)

Date & Time: Jan 23 2004, from 27:20 to 27:40 JST(+0900)
Composed 3 shots with 8 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
Digital Camera: Fujifilm FinePix S2 Pro
Location: Ooizumi vil., Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3024×2016)
CCD Sensitivity...ISO1600, White Balance...Auto

NGC4298 / Galaxy, type SA(rs)c III-IV
R.A.12h 21m 32.6s (2000.0)
Dec.+14° 36' 25" (2000.0)
Apparent Size3.2×1.8'
Radial Velocity1464km/s
Distance52 million light yrs.
Group of GalaxiesVirgo Cluster
Other IDsUGC7412, MCG3-32-7
CGCG99-24, PGC39950
NGC4302 / Galaxy, type Sc:sp
R.A.12h 21m 42.4s (2000.0)
Dec.+14° 36' 05" (2000.0)
Apparent Size5.5×1.0'
Radial Velocity1442km/s
Distance52 million light yrs.
Group of GalaxiesVirgo Cluster
Other IDsUGC7418, MCG3-32-9
CGCG99-27, PGC39974
These galaxies are closing-pair in the Virgo Cluster, right one is NGC4298, and another galaxy has a number of NGC4302. Both are spirals but their facing angles are different, NGC4302 looks like an edge-on, we can detect its crossing dark lane clearly. Both galaxies have a brightness of 12th magnitude, your telescope-aided eyes can detect two dimmed lumps of light although it's fairly difficult to catch a dark lane of NGC4302.

Around NGC4274


Copyright(c) 2004 by Naoyuki Kurita, All rights reserved.
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