(IAAC) Obj: 3C273 - Inst: 15" f4,5 Obsession

[anonymous at sedna.atmob.org]

----

Observation Poster: Armin Hermann <burmeseinn at yahoo.com>

Observer: Armin Hermann
Your skills: Advanced (many years)
Date/time of observation: 11 May 05
Location of site: Sangkhlaburi, Thailand (Lat 15.09 N, Elev 200m)
Site classification: Exurban
Sky darkness: 5,8 mag <Limiting magnitude>
Seeing: 10 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 15" f4,5 Obsession
Magnification: 342x
Filter(s): 
Object(s): 3C273
Category: Quasar or lens.
Class: 
Constellation: Vir
Data: mag 12,5magv  size -
Position: RA :  DEC :
Description:
Very bright and slightly blueish. Forms a triangle (2') with a 13,5mag and a faint 
14,5 - 15 mag star. Easy to find. There is a couple of interseting galaxies in the 
vicinity of 3C273, such as NGC 4517, 17A and the group NGC4527/33/36. Those 
objects make the hunt for 3C273 more fun as the quasar itself just appears as a 
bright stellar object. It is the imagination of 3C273's distance of 1,9 billion light 
years that make it a "have to-target" in springtime.

--
Optional related URLs: 
** This observing log automatically submitted via the Web from:
  http://www.visualdeepsky.org/enter-log.html