Deep Sky Object in Autumn
NGC157 (Galaxy in Cetus)


Date & Time: Oct 6 2023, from 20:53 to 21:42 JST(+0900)
Composed 7 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


NGC157 / Galaxy, type SAB(rs)bc I-II
R.A.00h 34m 46.6s (2000.0)
Dec.-08° 24' 03" (2000.0)
Apparent Size4.2×2.7'
Radial Velocity+1730km/s
Magnitude11.0
Distance76 million light yrs.
Group of Galaxies -
Other IDsMCG -2-2-56, PGC 2081
It's a small spiral galaxy in ten degrees north from beta Ceti. The galaxy has a long axis of 4 arc minutes and a visual brightness of 11th magnitude. You can see the galaxy like a dimmed lump of light with a small central bulge and clear two arms.



NGC151
NGC185

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