NGC4496, NGC4480

Deep Sky Object in Spring

NGC4496, NGC4480(Galaxies in Virgo)

Date & Time:	Feb 21 2026, from 27:35 to 28:30 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

This image captures a small galaxy floating 6 degrees northwest of γ Virginis (Porrima). The galaxy visible in the upper right of the frame is NGC4480, a barred spiral galaxy a little over 2 arcminutes in length. The galaxy located 25 arcminutes to its southeast is NGC4496A, also a barred spiral galaxy but with a disrupted spiral structure. Just south of NGC4496A lies NGC4496B, an irregular galaxy about 1 arcminute across. Although these galaxies appear to be colliding, it is known that NGC4496B is more than twice as distant, meaning there is no direct physical connection-they only appear superimposed by chance.

NGC4480 / Galaxy, type SAB(s)c III
R.A.	12h 30m 26.6s (2000.0)
Dec.	+04°14' 53" (2000.0)
Apparent Size	2.3×1.1'
Radial Velocity	+2368km/s
Magnitude	13.2
Distance	133 million light yrs.
Group of Galaxies	-
Other IDs	UGC 7647, CGCG 42-139 MCG +1-32-87, IRAS 12278+431 PGC 41317

NGC4496A / Galaxy, type SB(rs)m III-IV
R.A.	12h 31m 39.3s (2000.0)
Dec.	+03°56' 23" (2000.0)
Apparent Size	4.0×3.1'
Radial Velocity	+1900km/s
Magnitude	11.9
Distance	99.7 million light yrs.
Group of Galaxies	-
Other IDs	UGC 7668, MCG +1-32-90 IRAS 12291+412, PGC 41471

NGC4496B / Galaxy, type IB(s)m:
R.A.	12h 31m 40.8s (2000.0)
Dec.	+03°55' 35" (2000.0)
Apparent Size	1.0×0.9'
Radial Velocity	+4521km/s
Magnitude	14.5
Distance	234 million light yrs.
Group of Galaxies	-
Other IDs	PGC 41473

NGC4450

NGC4517

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