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(IAAC) Obj: NGC 6629 (blinking planetary) - Inst: 13" f/5.6 Newt



Observer: Steve Coe
Your skills: Advanced (many years)
Date/time of observation: Summer
Location of site: Arizona USA
Site classification: Rural
Seeing: 7 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 13" f/5.6 Newt
Magnification: 220x
Filter(s): None.
Object(s): NGC 6629
Category: Planetary nebula.
Class: 2a
Constellation: Sgr
Data: mag 11.6 12.9m*; size 16"x14"
Position: 182542 -231210
Description:
Lew, here are some more results from searching for the string
"blinking" in my observations. From Sagittarius:
--
NGC 6629  Pretty bright, small and a little elongated at 220X.
It is greenish and will reveal a central star with direct vision
at 220X. It exhibits some of the "blinking effect"--the central
star is much more prominent with averted vision than looking
directly at it, so it will blink on and off as you look at the
nebula then look away. This small planetary is about three times
the size of the Airy disk on a night I rated 7/10 for seeing.
--
So few objects show the "blinking effect", they are certainly
worth mentioning.  -Steve Coe
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