Deep Sky Object in Spring
Around NGC4045 & NGC4073 (Galaxies in Virgo)


Date & Time: Feb 1 2020, from 28:27 to 29:21 JST(+0900)
Composed 10 shots with 6 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium Moon&Skyglow 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


NGC4045 / Galaxy, type SAB(r)a
R.A.12h 02m 42.3s (2000.0)
Dec.+01° 58' 38" (2000.0)
Apparent Size3.2×1.3'
Radial Velocity+1948km/s
Magnitude11.9
DistanceN/A
Group of Galaxies -
Other IDsNGC 4046, UGC 7021
CGCG 13-46, MCG +0-31-22
IRAS 12001+215, PGC 38031
NGC4073 / Galaxy, type E+
R.A.12h 04m 27.1s (2000.0)
Dec.+01° 53' 45" (2000.0)
Apparent Size3.4×2.3'
Radial Velocity+5940km/s
Magnitude11.4
DistanceN/A
Group of Galaxies -
Other IDsUGC 7060, CGCG 13-59
MCG +0-31-29, PGC 38201
This image shows you two medium galaxies and surrounding compact ones seen at 3 degrees east of beta Virginis in the western region of Virgo. Both of spiral NGC4045 in the west side of image and elliptic NGC4073 in east have sizes of a bit larger than 3 arc minutes and visual brightnesses of 11th class magnitude, they are paralleling in east west direction with an elongation of 30 arc minutes.
You can recognize that several an arc minutes-sized indistinct galaxies are snuggling up around the NGC4073. Although distances to them have not been estimated, it's considered that they are forming a small-scaled galaxy group.
(4 digits in image indicate NGC #)



NGC4038,NGC4039(The Antennae)
NGC4065 Group

Copyright(c) 2020 by Naoyuki Kurita, All rights reserved.
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