(IAAC) Obj: NGC 750/751 (Arp 166) - Inst: 25" F5 Obsession dob

[anonymous at sedna.atmob.org]

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Observation Poster: Paul Alsing <palsing at harris.com>

Observer: Paul Alsing
Your skills: Advanced (many years)
Date/time of observation: 10/01/2005 11:00 PM PST
Location of site: Lake San Antonio, CA (Lat 35 49 N, Elev 1000 ft)
Site classification: Rural
Sky darkness: 6.5 <Limiting magnitude>
Seeing: 8 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 25" F5 Obsession dob
Magnification: various
Filter(s): None
Object(s): NGC 750/751 (Arp 166)
Category: Group of galaxies.
Class: NGC 750/751, ADS 1652
Constellation: TRIANGULUM
Data: mag 12.2  size 1.6 arcmin
Position: RA 01:57  DEC +33:12
Description:
ARP 166 consists of 2 little elliptical 12th mag galaxies, NGC 750/751. Megastar indicates that these guys overlap, but at 187X they look like identical twins to me, clearly separated by a dark lane.

What makes this field very interesting is the double star
ADS1652 just 4.6 arcsec to the SE of the galaxies. These stars have a
separation of 1.7" and magnitudes of 8.9 & 9.2, and on this night
there was plenty of black between them.

Another "double-double" of sorts. I love this hobby.

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