(IAAC) Obj: Rho Oph - Inst: 4.5" homemade Dobson reflector, f/8

[Ante Perkovic]

  Observer: Ante Perkovic
Your skills: Intermediate (some years)
Date/time of observation: August 20th 2003, 21.47h
Location of site: above Sevid, near Trogir, Croatia (Lat 43.5 N, Elev 200m)
Site classification: Rural
Sky darkness: 6.0 <Limiting magnitude>
Seeing:
Moon presence: None - moon not in sky
Instrument: 4.5" Homemade Dobson reflector, f/8 ("babydob")
Magnification: 48x, 79, 140x
Filter(s): None
Object(s): Rho Oph
Category: Multiple star
Class:
Constellation: Sco
Data: mag 4.6, 5.0  size 3"
Position:
Description:
- 48x: From time to time, I can see it isn't just a single point of 
light, but I'm still not sure is it due to imperfect optics, atmosphere 
or Rho Ophiuchi.
- 79x: I can barely resolve it. It's oriented N-S.
- 140: I clearly see it's a N-S oriented double.

The star was 15 deg above the horizon.