NGC 3718 (UGC 6524, Arp 214) Galaxy field in Ursa Major

Located at: RA 11 hours 32 minutes 35 seconds, Dec +53 degrees 04 minutes 05 seconds

Size: 9.2' x 4.4' Magnitude: 10.7 visual Class: SB(s)a pec

North is up

West to the right

Telescope:

 14.5" f5 Newtonian reflector

Camera:

  ST-8XME, self-guided, binned 1x1, temp -15c & -20c, camera control MaxIm DL 4.56

Image:

Lumicon Red filter, 800 minutes (80 x 10 minute subs), 02/27/29 & 03/1/2016; seeing 1.8-3.9 FWHM per CCDStack

Processing:

CCDStack 2.90.5589.16047, Photoshop CS5.1

Location:

 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)

Notes: This interesting field contains two peculiar galaxies; NGC 3718 (large Arp galaxy centered), NGC 3729 (3.0' x 2.2', 11.4 mag, SB(r)a pec), and a Hickson galaxy group (Hickson 56). The Hickson 56 group is the little string of galaxies south (below) of NGC 3718. It consists of five small galaxies, the middle three which appear to be in contact and interacting. See here for an image of Hickson 56 from  Adam Block / NOAO / AURA / NSF. See the 8" version.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 3718
NGC 3718 = UGC 06524 = MCG +09-19-114 = CGCG 268-048 = Arp 214 = PGC 35616
11 32 35.0 +53 04 05
V = 10.8;  Size 8.1x4.0;  SB = 14.4;  PA = 15d

13.1": fairly bright, fairly large, broad concentration, almost round.  Double 
star h2574 = mag 11/11 at 35" separation is 2.2' SSW of center.  N3729 lies 12' 
ENE.  The galaxy chain HCG 56 = U06527 = VV 150 lies 7' S.

- by Steve Gottlieb
Contemporary Visual Observation(s) for NGC 3729
NGC 3729 = UGC 06547 = MCG +09-19-117 = CGCG 268-051 = PGC 35711
11 33 49.3 +53 07 33
V = 11.4;  Size 2.8x1.9;  SB = 13.1;  PA = 15d

13.1": fairly bright, fairly small, elongated ~N-S.  A mag 11 star is on the SSW 
edge 57" from the center.  N3718 lies 12' WSW.

- by Steve Gottlieb