(IAAC) Obj: NGC 6309 - Inst: TV-102 (102mm f/8.6 APO refractor)


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: 8 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: TV-102 (102mm f/8.6 APO refractor)
Magnification: 22x, 110x, 175x, 220x
Filter(s): none
Object(s): NGC 6309
Category: Planetary nebula.
Constellation: Oph
Data: mag 11.5  size 1.1'
Position: RA :  DEC :
A tough one was this magnitude 11.5 PN. This one is easier to star hop and much
larger than NCG 6572, but a heck of lot dimmer.  At 110x, itís exposed as 
elongated dim smudge.  PN was brighter than the 12.9 magnitude star 
GSC5652:1465 that forms part of a square to the west of the nebula.  At 146x, 
the PN looked like 2 dim stars inside the PN.  At 175x , the PN looks dimmer 
now.  At 220x, much dimmer, 1 (12.1 magnitude GSC5653:201) star now clearly 
seen outside nebula to the north.

The PN is knowned as the Box Nebula, but I can't say I saw any "box" :-(.

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