Deep Sky Object in Spring
NGC4697 & NGC4699 (Galaxies in Virgo)

Date & Time: NGC4697...May 4 2018, from 21:14 to 21:50 JST(+0900), 4min.×10shots
NGC4699...May 4 2018, from 21:58 to 22:34 JST(+0900), 4min.×10shots
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium Moon&Skyglow filter
Auto-guided with Meade LX200 Equatorial & Pictor 201XT
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

NGC4697 / Galaxy, type SA?0
R.A.12h 48m 35.9s (2000.0)
Dec.-05° 48' 02" (2000.0)
Apparent Size7.2×4.6'
Radial Velocity+1569km/s
Distance55 million light yrs.
Group of GalaxiesVirgo II - NGC4697 Group
Other IDsMCG-1-33-10, UGCA300
NGC4699 / Galaxy, type Sab:
R.A.12h 49m 2.2s (2000.0)
Dec.-08° 39' 52" (2000.0)
Apparent Size3.8×2.6'
Radial Velocity+1759km/s
Distance55 million light yrs.
Group of GalaxiesVirgo II - NGC4699 Group
Other IDsMCG-1-33-13, UGCA301
IRAS12464-0823, PGC43321
This set of two images show you two small galaxies in the southern region of Virgo. NGC4697 is positioned about 5.5 degrees west of theta Vir, and NGC4699 is found at about 3 degrees south from NGC4697.
Although both galaxies have no striking characteristics, you can see that NGC4697 has an apparent shape of ellipse. The galaxy has a span of about 7 arc minutes in east west direction, you can appreciate this shape clearly through medium-sized telescopes. While NGC4699 looks like a simple round shape and has a diameter of a bit smaller than 4 arc minutes. There are plenty of galaxies around the constellations of Virgo and Corvus but almost all of them are faint difficult to appreciate with amateur telescopes. You can find out the Sombrero Galaxy (M104) only 3.5 degrees SSW of NGC4699.

NGC4676(The Mice)


Copyright(c) 2018 by Naoyuki Kurita, All rights reserved.
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