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(IAAC) Obj: NGC 6572 - 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: 07/17/01
Location of site: 117h 9m W (Lat 32h 43m N, Elev 2000 ft)
Site classification: Exurban
Sky darkness: 5 <Limiting magnitude>
Seeing: 9 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: TV-102 (102mm f/8.6 APO refractor)
Magnification: 60x, 110x, 146x, 176x, 220x, 293x, 352x
Filter(s): none
Object(s): NGC 6572
Category: Planetary nebula.
Class:
Constellation: Oph
Data: mag 8.1 size 18" x 12"
Position: RA : DEC :
Description:
This object has been eluding me for about one month now because I was using
freebie charts. Tonight with The Sky chart, it was still tough to locate by
star hopping, being so tiny. At 60x, it still looked like a star. At 110x,
the nearby stars are all dimmer, expect the PN. It has blue-green color and
still looked like a lightly bloated star that can’t come to focus. At 146x
(still blue-green), better view and definitely a PN. The 60 degree FOV of the
Radian allowed me to see the PN as a ball and the stars to east forming a
racket (5 stars forms a racket and 3 stars form racket’s hanlde – SAO123243,
GSC443:638, 443:1000, 443:2045, 443:1596, 443:2072, 443:2888). Got impression
of brighter center. At 176x, 220x and 293x, the PN retained its brightness.
Oval shape was detected at 293x and 352x. At 293x, 4 stars form a square (part
of the racket) to the east and fit the FOV! Overall, the size of the PN is
like that of Uranus. Much brighter than M57!
I've discovered that a high-magnification wide-field eyepiece is very useful
in allowing me not only to observe the object, but also to see how it relates
to its surroundings.
My Favorite!
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