(IAAC) Obj: NGC 5820, NGC 5821A, NGC 5821B - Inst: 10" f/4.7 Newtonian reflector

anonymous at sedna.atmob.org anonymous at sedna.atmob.org
Wed Aug 15 14:24:21 EDT 2007


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Observation Poster: Brent Reary <gmbreary at rollanet.org>

Observer: Brent Reary
Your skills: Intermediate (some years)
Date/time of observation: 08/07/07  04:10 UT
Location of site: Rolla, MO  USA (Lat 37 57'N, Elev )
Site classification: Rural
Sky darkness: 6.5 <Limiting magnitude>
Seeing: 7 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 10" f/4.7 Newtonian reflector
Magnification: 80x, 133x, 200x, 267x
Filter(s): None
Object(s): NGC 5820, NGC 5821A, NGC 5821B
Category: External galaxy.
Class: 
Constellation: Boo
Data: mag   size 
Position: RA :  DEC :
Description:
NGC5820; Mag 12.4, Size 1.0' X 1.0', RA 14:58.5, DEC +53:53
267x- A uniform round halo which gradually brightens to a fairly bright,
diffuse core.  NGC5821A is located 3' NE and NGC5821B is 5' E..

NGC5821A; Mag ~13.0, Size 0.5' X 0.5', RA 14:59, DEC +53:55
200x- A faint round, to slightly oval halo of uniform appearance.  It shows
no detectable brightening toward the core.  It began to fade into the
background at 267x.

NGC5821B; Mag ~13.5, Size 0.5' X 0.5', RA 14:59.5, DEC +53:54
200x- A very faint uniform round halo which shows no detectable brightening
toward the core.  A close pair of 7th-8th magnitude stars lie just to the SE
and make observation of the galaxy difficult.

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