Deep Sky Object in Spring
M65, M66, NGC3628 (Galaxies in Leo)

Date & Time: Feb 16 2007, from 27:48 to 28:40 JST(+0900)
Composed 6shots with 10 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon with conversion lens (f=742mm, F4.6)
Auto-guided with TAKAHASHI JP Equatorial & Meade Pictor 201XT
Digital Camera: Nikon D70 (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3008×2000)
CCD Sensitivity...ISO800

M65 (NGC3623) and M66 (NGC3627) make a splendid pair of spiral galaxies in the same field at Leo's hind legs, between theta and iota Leonis, right and left-hand side ones are M65 and M66 respectively. And about a degree north, you can see one more edge-on galaxy NGC3628 with a dark lane being crossed; the galaxy is dimmer than M65 and M66. You can appreciate this trio as similar scenery to this picture with telescopes.
The galaxies have interaction via gravity, and lie on the empty space approximately 20 or 30 million light years away.

To close-up of M65 & M66 (105KB)
To close-up of NGC3628 (114KB)

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,
NGC3628 / Galaxy, type Sb pec sp III
R.A.11h 20m 16.2s (2000.0)
Dec.+13° 35' 22" (2000.0)
Apparent Size14.7×2.9'
Radial Velocity+1184km/s
Distance25 million light yrs.
Group of GalaxiesLeo I Group
Other IDsUGC6350, MCG2-29-20,
CGCG67-58, PGC34697
Wide-field image around M65, M66 Wide-field image around M65, M66

  Three galaxies are collected together between sita and iota Leo.
(Taken with f=200mm telephoto lens)



Copyright(c) 2007 by Naoyuki Kurita, All rights reserved.
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