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(IAAC) Obj: NGC 6905 - Inst: TV-102 (102mm f/8.6 APO refractor)
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Observation Poster: Ron B[ee] <ronby@home.com>
Observer: Ron B[ee]
Your skills: Beginner (< one year)
Date/time of observation: 07/21/01
Location of site: 117h 9m W (Lat 32h 43m N, Elev 2000 ft)
Site classification: Exurban
Sky darkness: 5 <Limiting magnitude>
Seeing: 5 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: TV-102 (102mm f/8.6 APO refractor)
Magnification: 30x, 110x, 146x, 220x, 293x
Filter(s): none
Object(s): NGC 6905
Category: Planetary nebula.
Class:
Constellation: Del
Data: mag 12.0 size 47" x 37"
Position: RA : DEC :
Description:
PN is enclosed by 4 stars: GSC 1639:1447 (10.4), GSC 1639:2261(12.0), GSC
1639:1018(11.4) and GSC 1639:1048 (12.8). 30x showed gray puff. 110x showed
round shape with averted vision. 146x showed oval shape with direct vision.
The 3 stars are seen with the 4th 12.8th magnitude star GSC 1639:1048 winking
in and out. 220x gave best view, large oval shape, 4 stars now clearly seen
with direct vision. 293x also gave best view with same brightness as 220x.
Dim smudge at all magnifications. Known as the "Blue Flash" planetary, I
never saw any “flashes” :-(.
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