(IAAC) IC 1308 (in NGC 6822) - Newtonian 17.5" (445mm) F/4.5

[Yann POTHIER]

Observer: Yann POTHIER (France)
Your skill: advanced (many years)
Object: IC 1308 (=Hubble 10)
Category: HII region and OB association
Constellation: SGR
Object data: HII= 22", OB= 38"x32", composed of Hodge 13 (OB) et Hodge 14 (HII)
RA/DE: 19h45m05.2s, -14°43'19" (2000.0)
Date and UT of observation: 10 august 2007, 22h40 UT
Location & latitude: La Clapiere Obs. (France, latN44 40 00, longE06 27 36)
Site classification: rural, alt.1650m (5500ft)
Limiting magnitude (visual in UMi): 6.31 (30% of the time)
Transparency (1 to 5 - best to worst): 1
Seeing (1 to 5 - best to worst): 2
Height above horizon: 30°
Moon up (phase?): no
Instrument: Coulter 445mm/17.5" F/4.5
Magnification: 80-426x
Filters used: OIII, UHC, Hbeta

Description: at 271x, small, very faint, seen 75% 
of the observing time with averted vision at 
271x, observed from 80 to 426x; round, about 22" 
in diam., homogeneous with diffuse edges; UHC 
filter gives a slight contrast gain and OIII a 
good one while Hbeta shows no enhancement; just 
non-stellar at 125x.


-- 

Carpe noctem, Yann.

Yann Pothier
11 impasse Canart, 75012 PARIS, FRANCE
yann.pothier at fnac.net
http://www.astrosurf.com/cielextreme