Deep Sky Object in Spring
NGC4100 (Galaxy in Ursa Major)


Date & Time: Dec 9 2023, from 27:03 to 27:59 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(4080×4080)
Device Size...20×20mm
Sensitivity...ISO4000, White Balance...Daylight


NGC4100 / Galaxy, type (R')SA(rs)bc
R.A.12h 06m 08.4s (2000.0)
Dec.+49°34' 59" (2000.0)
Apparent Size5.4×2.0'
Radial Velocity+1131km/s
Magnitude11.9
Distance65 million light yrs.
Group of GalaxiesUrsa Major S - NGC3992 Group
Other IDsUGC 7095, CGCG 243-44
MCG +8-22-68, PGC 38370
IRAS 12036+4951
This is a medium-sized spiral galaxy located approximately 3.7 degrees northeast of χ Ursae Majoris. It spans a length of 5.4 arc minutes in the north-south direction. It exhibits a morphology where the outer regions surround the galaxy in a ring-like fashion, and its brightness is approximately 12th magnitude. Belonging to the Ursa Major Southern galaxy group, it is situated at a distance of 65 million light-years.



NGC4096
NGC4111

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