Deep Sky Object in Autumn
NGC720 (Galaxy in Cetus)


Date & Time: Dec 3 2021, from 22:02 to 22:57 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


NGC720 / Galaxy, type E5
R.A.01h 53m 00.4s (2000.0)
Dec.-13°44' 21" (2000.0)
Apparent Size4.6×2.3'
Radial Velocity+1716km/s
Magnitude11.2
Distance80 millions light yrs.
Group of GalaxiesNGC720 Group
Other IDsMCG -2-5-68, PGC 6983
At the central region of Cetus, a medium scaled elliptical galaxy at 3 degrees northeast of tau Ceti has an ID of NGC720. This image shows no clear structures with a long axis of a bit shorter than 5 arc minutes and a brightness of 12th magnitude. The galaxy is forming a small scaled galaxy group with members in outskirts, estimated as about 80 million light years away.



Around IC167, NGC691
NGC772

Copyright(c) 2021 by Naoyuki Kurita, All rights reserved.
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