(IAAC) Obj: NGC 6803 (PK46-4.1, PNG46.4-4.1) - Inst: 17.5" f/4.5 dob
Observer: Lew Gramer; Steve Clougherty
Your skills: Intermediate (some years); Advanced (many years)
Date/time of observation: 2240 Local, 17 Sep 2001
Location of site: ATMoB Clubhouse, Westford MA USA (42oN, 86m elev)
Site classification: Suburban
Sky darkness: 4+ <Bortle Scale (9 worst)>
Seeing: 8 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 17.5" f/4.5 dob
Magnification: 90x, 222x, 285x, 500x
Filter(s): None. UHC.
Object(s): NGC 6803 (PK46-4.1, PNG46.4-4.1)
Category: Planetary nebula.
Data: Mag 11.3 15.2m*; size 5"x5"
This near-stellar PN was quickly found as a wee little "dot", just
under a degree due N of NGC 6804 (see prior log). It appears as mag
11, and forms the W-most vertex of an elongated isosceles triangle
of mag 10-11 stars. (The other vertices sit 7' and 8' E of the PN:
GSC1059-1595 and -1955, respectively.) NGC6803's identity can also
be confirmed at 90x, by blinking with UHC - it will suddenly change
from the least, to the MOST prominent vertex of the little triangle.
Don't confuse the PN with a mag 12 field star, just an arcminute SW
(GSC1059-1672). A UHC noticeably reduces the prominence of the field
star, but not the PN. The PN can also be identified as the SW corner
of a trapezoid of mag 11 stars (GSC1059-1595, -0953, and -2082.) No
detail was noted at any magnification, with or without a UHC.
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