NGC/IC Project Restoration Effort

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NGC3647

 

Basic Information


Location and Magnitude


Right Ascension: 11:21:32.5
Declination: +2:53:14
Constellation: LEO
Visual Magnitude: 14.2

Historic Information


Discoverer: Marth
Year of discovery: 1865
Discovery aperture: 48.0

Observational


Summary description: eF neb *
Sub-type: E1

Corwin's Notes

===== NGC 3647. See NGC 3643.

Steve's Notes

===== NGC 3647 48" (4/4/11): fairly faint, small, round, 18" diameter, small bright nucleus. First in the dense Shkh 352 cluster (7 members within 2') with 6 galaxies close following including Shkh 352-6 0.8' SE, CGCG 39-140 0.8' NE and Shkh 352-3 1.5' ENE. Located 4.6' N of NGC 3644 (brightest nearby galaxy) and 11' ENE of mag 8.1 HD 98603. Shkh 352-2: fairly faint, very small, round, 14" diameter, very small bright nucleus. Located 0.8' NE of NGC 3647 (Shkh 352-1) in a dense group of compact galaxies. CGCG 39-141 lies 50" E and Shkh 352-6 lies 42" S. Shkh 352-3: faint, very small, round, 14" diameter. In a very rich, group of faint, compact ellipticals with CGCG 139-140 = Shkh 352-2 0.8' W, CGCG 139-142 = Shkh 352-4 0.7' N, Shkh 352-7 0.7' NE and NGC 3647 1.5' WSW. Shkh 352-4: fairly faint, very small, round, 12", very small bright nucleus. Located 0.9' NE of CGCG 39-140 = Shkh 352-2 and 0.7' N of Shkh 352-3 in the core of this compact cluster. Shkh 352-7 lies 45" ESE. Shkh 352-5: extremely faint and small, 6" diameter. Furthest north in tight group of 7 members of Shkh 352, packed into a 2' circle. Located 42" N of CGCG 39-142 = Shkh 352-4. A mag 16 star lies 35" NW. Shkh 352-6: very faint, extremely small, round, 6" diameter. This member of Shkh 352 forms the southern vertex of a tiny quadrilateral with NGC 3647 = CGCG 39-135 0.8' NW, CGCG 39-140 0.7' N and CGCG 39-141 1' NE! Shkh 352-7: faint, extremely small, round, 6" diameter, bright stellar nucleus. Located 40" NE of Shkh 352-3 and 45" ESE of CGCG 039-142 = Shkh 352-4.