Deep Sky Object in Summer
Arp 254 (Galaxies in Libra)


Date & Time: May 3 2022, from 23:14 to 24:08 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


Arp 254(NGC5917) / Galaxy, type Sb pec?
R.A.15h 21m 32.6s (2000.0)
Dec.-07° 22' 37" (2000.0)
Apparent Size1.5×0.8'
Radial VelocityN/A
Magnitude14.5
DistanceN/A
Group of Galaxies -
Other IDsMCG -1-39-2, IRAS 15188-711
PGC 54809
Arp 254 is an interacting galaxy pair lying at 2 degrees NNE from beta Librae. A northern galaxy is NGC5917 and a southern dimmed and elongated one is MCG-1-39-3 with a brightness of 14th magnitude. Both galaxies are connected by a dimmed light bridge, considered that the influence of interaction made MCG-1-39-3 elongated.



Arp 102
Arp 330

Copyright(c) 2022 by Naoyuki Kurita, All rights reserved.
To top page To Deepsky in Summer index Libra