Deep Sky Object in Spring
NGC2444 & NGC2445 (Arp 143, Galaxies in Lynx)


Date & Time: Dec 8 2023, from 28:10 to 29:06 JST(+0900)
Composed 8 shots with 8 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(2040×2040)
Device Size...10×10mm
Sensitivity...ISO4000, White Balance...Daylight


NGC2444 / Galaxy, type Ring A
R.A.07h 46m 53.2s (2000.0)
Dec.+39°02' 00" (2000.0)
Apparent Size1.9×1.0'
Radial Velocity+3974km/s
Magnitude14.2
Distance178 million light yrs.
Group of Galaxies -
Other IDsUGC 4016, MCG +7-16-16
PGC 21774
NGC2445 / Galaxy, type Ring B
R.A.07h 46m 54.2s (2000.0)
Dec.+39°00' 45" (2000.0)
Apparent Size1.8×1.2'
Radial Velocity+3903km/s
Magnitude13.9
Distance178 million light yrs.
Group of Galaxies -
Other IDsUGC 4017, Arp 143
MCG +7-16-17, IRAS 7435+3908
PGC 21776
This image has taken a peculiar galaxy pair positioned in southwest region of Lynx. Both galaxies have sizes of a bit smaller than 2 arc minutes, north and south ones have numbers of NGC2444 and NGC2445, respectively. They have gravitational interaction each other, that has made NGC2444 about triangle shape. These two galaxies look like a butterfly.



NGC2403
NGC2537, IC2233

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