Deep Sky Object in Autumn
NGC7757(Galaxy in Pisces)


Date & Time: Nov 22 2024, from 20:53 to 21:35 JST(+0900)
Composed 8 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


NGC7757 / Galaxy, type SA(rs)c
R.A.23h 48m 45.5s (2000.0)
Dec.+04°10' 16" (2000.0)
Apparent Size2.4×1.7'
Radial Velocity+2955km/s
Magnitude13.1
Distance138 million light yrs.
Group of GalaxiesNGC7757 Group
Other IDsUGC 12788, CGCG 407-59
Arp 68, MCG +1-60-37
IRAS 23461+353, PGC 72491
It is a small spiral galaxy located 2.6 degrees southeast of ι Piscium in the western part of the constellation. This face-on galaxy, with a major diameter of just over 2 arcminutes, is characterized by its prominent bright star-forming regions along its arms, despite its small size. The galaxy is registered as Arp 68 in the catalogue of Peculiar Galaxies. The distance to NGC7757 is estimated to be 138 million light-years.



NGC7742
NGC7793

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