Deep Sky Object in Spring
Around NGC4008 (Galaxies in Leo)


Date & Time: May 3 2022, from 21:29 to 22:23 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


NGC4004 / Galaxy, type Pec
R.A.11h 58m 05.1s (2000.0)
Dec.+27°52' 08" (2000.0)
Apparent Size2.2×0.7'
Radial Velocity+3377km/s
Magnitude14.1
Distance153 million loght yrs.
Group of GalaxiesNGC4017 Group
Other IDsUGC 6950, CGCG 157-65
MCG +5-28-60, IRAS 11555+2809
PGC 37654
NGC4008 / Galaxy, type E5
R.A.11h 58m 17.2s (2000.0)
Dec.+28°11' 34" (2000.0)
Apparent Size2.4×1.2'
Radial Velocity+3562km/s
Magnitude13.0
Distance165 million light yrs.
Group of GalaxiesNGC4017 Group
Other IDsUGC 6953, CGCG 157-66
MCG +5-28-61, PGC 37666
This image shows you distributed galaxies at the northeast edge of Leo. Borders to Canes Venatici and Coma Berenices are crossing in the image.
An elliptical galaxy a bit upper center is 12th magnitude NGC4008 and peculiar one just south is 14th magnitude NGC4004. Both have long axis of a bit longer than 2 arc minutes, actually not particularly eye-catching. NGC4004 has a characteristic stretched arm to south direction. It is considered that the structure is caused by interaction of IC2982 lying just west of the galaxy.
Those galaxies are floating at about 150 to 160 million light years away, forming a small-scaled group with NGC4017 outside of the image in south.



NGC3981
NGC4027

Copyright(c) 2022 by Naoyuki Kurita, All rights reserved.
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