(IAAC) NGC 7678 - Newtonian 17.5" (445mm) F/4.5

Yann POTHIER yann.pothier at tiscali.fr
Wed Oct 31 03:34:17 EDT 2007


Observer: Yann POTHIER (France)
Your skill: advanced (many years)
Object: NGC 7678
Category: galaxy SBc/SXT5/SAB(rs)c/Sbrst Sy2
Constellation: PEG
Object data: Bmag=12.4/12.6, 2.5'x1.8', PA5°, z=0.011639, vr=3489km/s
RA/DE: 23h28m27.8s, +22°25'14" (2000.0)
Date and UT of observation: 11 august 2007, 02h20 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: 67°
Moon up (phase?): no
Instrument: Coulter 445mm/17.5" F/4.5
Magnification: 80-426x
Filters used: -

Description: at 271x, small to medium sized 
galaxy, faint, hard to see with direct vision 
(but held steadily with indirect vision), 
slightly oval, about 1.35'x1.05' NE-SW, with 
diffuse edges and a brighter center; southern 
spiral arm is seen about 10% of the observing 
time, one or two glimpses of its overall pattern 
were detected and several of its SW end (somewhat 
brighter or more condensed); the spiral arm width 
is about 10" and it develops counter-clockwise; 
the all galaxy lies in the middle of a triangle 
of mag.11-12 stars, 1.4'NE, 1.5'N and 1.1'S.


-- 

Carpe noctem, Yann.

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



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