Deep Sky Object in Spring
NGC4293 (Galaxy in Coma Berenices)



Date & Time: Dec 17 2023, from 26:11 to 27:05 JST(+0900)
Composed 10 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



NGC4293 / Galaxy, type (R)SB(s)0/a
R.A.12h 21m 13.1s (2000.0)
Dec.+18°22' 58" (2000.0)
Apparent Size5.6×2.5'
Radial Velocity+717km/s
Magnitude11.3
Distance54 million light yrs.
Group of GalaxiesVirgo Cluster
Other IDsUGC 7405, CGCG 99-23
MCG +3-32-6, PGC 39907
IRAS 12186+1839
NGC 4293 is a small lenticular galaxy located at the southern end of the constellation Coma Berenices. It corresponds to the northern tip of the Virgo Cluster and can be found about 1 degree west of M85. With an elongated shape extending in the east-west direction, it has a major axis of just over 5 arcminutes and a brightness of 11th magnitude.
The galaxy comprises a bright central bulge surrounded by faint outer regions, and its tightly wound arm structures are indistinct. NGC 4293 is a typical example of an active galaxy with a massive black hole at its nucleus. Observations of emission line spectra from low-ionization atoms categorize such galaxies as LINERs (Low-Ionization Nuclear Emission-line Region).




Around NGC4261

NGC4340, NGC4350


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