NGC 3690 / IC 694 (Arp 299, UGC 6472 / UGC 6471) Galaxies in Ursa Major

Located at: RA 11 hours 28 minutes 33 seconds, Dec +58 degrees 33 minutes 56 seconds

Size: 1.5' x 1.0' / 1.1' x 0.9' Magnitude: 12.0 / 12.1 photographic Class: IBm pec (HII; LIRG)* / SBm? pec (Sbrst AGN)*

North is up

West to the right

Telescope:

 14.5" f5 Newtonian reflector

Camera:

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

Image:

Lumicon Red filter, 680 minutes (68 x 10 minute subs), 03/6/7/8/2017; FWHM 2.5-4.3 per CCDStack

Processing:

CCDStack 2.93.6093.26774, Photoshop CS5.1

Location:

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

Notes:*

As usual, with the near full moon brightening in the east (see NGC 3319), I have moved to the north to image ... this one had a tough background to process, as the nearly full moon almost shined down the tube the last two days of imaging. IC 694 is the smaller galaxy attached/below NGC 3690 ... the small galaxy northeast (upper left) of NGC 3690 / IC 694 is Arp 296 (0.7'x 0.4', mag 15.7; Cl: B).

From the NGC / IC Project: ...

 *  NED classification.