Deep Sky Object in Spring
Close-up of M65,M66

Date & Time: Feb 3 2017, from 28:44 to 29:17 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

M65 (NGC3623) / Galaxy, type SAB(rs)a II
R.A.11h 18m 55.2s (2000.0)
Dec.+13° 05' 35" (2000.0)
Apparent Size7.8×1.5'
Radial Velocity+1146km/s
Distance25 million light yrs.
Group of GalaxiesLeo I Group
Other IDsUGC6328, MCG2-29-18,
M66 (NGC3627) / Galaxy, type SAB(s)b II
R.A.11h 20m 14.4s (2000.0)
Dec.+12° 59' 42" (2000.0)
Apparent Size9.1×4.2'
Radial Velocity+1066km/s
Distance34 million light yrs.
Group of GalaxiesLeo I Group
Other IDsUGC6346, MCG2-29-19,
This image shows you a close-up of M65(right) and M66(left). M65 has a clear dark lane in part of arms, and M66's arms include complicated H-alpha regions. They seems brother galaxies but actually M66 is more distant about 10 millions light years than M65.

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