Deep Sky Object in Spring
M88 (Galaxy in Coma Berenices)

Date & Time: Apr 28 2017, from 23:11 to 23:45 JST(+0900)
Composed 12 shots with 3 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
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...ISO6400, White Balance...Daylight

M88 (NGC4501) / Galaxy, type SA(rs)b I-II
R.A.12h 31m 59.6s (2000.0)
Dec.+14° 25' 17" (2000.0)
Apparent Size6.9×3.7'
Radial Velocity+2599km/s
Distance55 million light yrs.
Group of GalaxiesVirgo Cluster
Other IDsUGC7675, MCG3-32-59
This picture shows you M88, a northern galaxy of Virgo Cluster. The galaxy has a long axis of 7 arc minutes and 10.7 in visual brightness, a bit stretched nebula like light can be recognized with small telescopes. M88 is a typical spiral galaxy being a bit slant from edge-on, the picture shows you a dark lane surrounds the nucleus. And big telescopes can capture dimmed and fine arms coiled up.



Copyright(c) 2017 by Naoyuki Kurita, All rights reserved.
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