Deep Sky Object in Autumn
Cart Wheel Galaxy(Colliding Galaxies in Sculptor)



Date & Time: Nov 7 2021, from 20:39 to 21:24 JST(+0900),
Composed 12 shots with 4 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(1530×2040)
Device Size...7.5×10mm
Sensitivity...ISO4000, White Balance...Daylight



ESO350-40 / Galaxy, type Ring
R.A.00h 37m 41.7s (2000.0)
Dec.-33° 43' 02" (2000.0)
Apparent Size1.1×0.9'
Radial Velocity+9072km/s
Magnitude19.3
DistanceN/A
Group of GalaxiesSculptor supercluster
Other IDsMCG-6-2-22A, VV784
IRAS00352-3359, PGC02248
ESO350-40A / Galaxy
R.A.00h 37m 43.9s (2000.0)
Dec.-33° 42' 09" (2000.0)
Apparent Size0.5×0.2'
Radial VelocityN/A
Magnitude16.7
DistanceN/A
Group of GalaxiesSculptor supercluster
Other IDsPGC02249
In central region of Sculptor, a popular colliding galactic pair of "Cartwheel galaxy" is positioned. A larger one with shape of cartwheel has been registered as ESO350-40, and eastern another dwarf galaxy collided head on is ESO350-40A.
These galaxies have visual brightness of about 19th magnitude, and size of smaller than 1 arc minutes, very very dimmed celestial objects difficult to detect with amateur telescopes. I have displayed an image captured by the Hubble Space Telescope (HST) in this page. I think you can recognize outlines of these galaxies by comparing with HST's clear picture.
Cartwheel Galaxy captured by HST Cartwheel Galaxy captured by HST
© STScI-HST




UGC12613
(Pegasus Dwarf Irregular Galaxy)

Andromeda I


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