Deep Sky Object in Spring
Around NGC4666 (Galaxies in Virgo)


Date & Time: Mar 8 2024, from 22:26 to 23:21 JST(+0900)
Composed 10 shots with 6 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(4080×4080)
Device Size...20×20mm
Sensitivity...ISO4000, White Balance...Daylight


NGC4666 / Galaxy, type SABc II:
R.A.12h 45m 08.5s (2000.0)
Dec.-00°27' 42" (2000.0)
Apparent Size5.7×1.5'
Radial Velocity+1612km/s
Magnitude10.7
Distance55 million light yrs.
Group of GalaxiesNGC4666 Group
Other IDsUGC 7926, CGCG 15-15
MCG +0-33-8, PGC 42975
NGC4653 / Galaxy, type SAB(rs)cd II
R.A.12h 43m 50.9s (2000.0)
Dec.-00°33' 39" (2000.0)
Apparent Size3.0×2.6'
Radial Velocity+2547km/s
Magnitude12.2
Distance43.7 million light yrs.
Group of GalaxiesNGC4666 Group
Other IDsUGC 7900, CGCG 15-9
MCG +0-33-6, IRAS 12412-17
PGC 42847
These are spiral galaxies floating approximately 1.3 degrees northeast of γVir (Porrima). NGC4666 is on the left side of the image, and NGC4653 is on the right side. NGC4666 is an elongated barred spiral galaxy with a major axis of just under 6 arc minutes and a brightness off 10.7th magnitude. It occupies the core of the galaxy group formed with surrounding member galaxies. NGC4653, somewhat fainter, is a barred spiral galaxy with a diameter of about 3 arc minutes and 12th magnitude. Their distances are estimated to be between 40 to 50 million light-years.



Around NGC4654
NGC4676 (The Mice)

Copyright(c) 2024 by Naoyuki Kurita, All rights reserved.
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