Deep Sky Object in Spring
Around NGC4442 (Galaxies in Virgo)


Date & Time: Mar 20 2023, from 25:02 to 25:58 JST(+0900)
Composed 8 shots with 8 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(2040×2040)
Device Size...10×10mm
Sensitivity...ISO4000, White Balance...Daylight


This image shows you four compact galaxies in southern part of the Virgo Cluster. The most striking NGC4442 in upper left is a lenticular having a long axis of larger than 5 arc minutes and a visual brightness of 11th magnitude. Other three galaxies have about 3 arc minutes in sizes and about 11th to 13th magnitude in brightness.
NGC4442 / Galaxy, type SB(s)0°
R.A.12h 28m 03.5s (2000.0)
Dec.+09° 48' 16" (2000.0)
Apparent Size4.5×1.7'
Radial Velocity+530km/s
Magnitude11.4
Distance52 million light yrs.
Group of GalaxiesVirgo Cluster
Other IDsUGC 7583, CGCG 70-100
MCG +2-32-68, PGC 40950
NGC4417 / Galaxy, type SB0: sp
R.A.12h 26m 50.5s (2000.0)
Dec.+09° 35' 02" (2000.0)
Apparent Size3.4×1.3'
Radial Velocity+852km/s
Magnitude12.0
Distance52 million light yrs.
Group of GalaxiesVirgo Cluster
Other IDsUGC 7542, CGCG 70-80
MCG +2-32-53, PGC 40756
NGC4424 / Galaxy, type SB(s)a:
R.A.12h 27m 11.5s (2000.0)
Dec.+09° 25' 15" (2000.0)
Apparent Size3.6×1.8'
Radial Velocity+447km/s
Magnitude12.3
Distance52 million light yrs.
Group of GalaxiesVirgo Cluster
Other IDsUGC 7561, CGCG 70-90
MCG +2-32-58, IRAS 12246+941
PGC 40809
NGC4445 / Galaxy, type Sab: sp
R.A.12h 28m 15.5s (2000.0)
Dec.+09° 26' 13" (2000.0)
Apparent Size2.6×0.4'
Radial Velocity+294km/s
Magnitude13.7
Distance52 million light yrs.
Group of GalaxiesVirgo Cluster
Other IDsUGC 7587, CGCG 70-104
MCG +2-32-72, PGC 40987



Around NGC4438
NGC4450

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