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(IAAC) OBJECT: NGC6572 and NGC6210 (planetaries) INST: 9.25" SCT f/10 - Rating: B



Observer:  Todd Gross
Your skill:  Intermediate - Many years
Date and UT of observation: 3/09/99 09:00 GMT
Location & latitude: 22 mi. West of Boston, Ma. 42.3N
Site classification: Suburban
Limiting magnitude (visual): approx. 4.7 zenith 
Seeing (1 to 10 - worst-best): about 3
Moon up (phase?): Yes, last 1/4 (just over)
Weather: Crystal Clear
Instrument: C9.25" SCT f/10 f.l.2350
Magnifications: 123 & 235x
Filters used: none
Object: NGC6572 & NGC6210
Constellations: Ophiuchus and Hercules 
Object data: Planetaries 
Size(s): 13" 6572, 17" 6210
Position: 
Magnitudes: Both near 9 
Personal "rating" (at this aperture, and sky condition): B/B-
These little planetaries are striking for their color. I first viewed
NGC6572 through this 9.25" SCT and at lower magnification, it looked
like a fuzzy blue star. At 235x, a very bright, striking blue (cyan) 
fuzzball brightest in the center. I then moved to 6210 and made a 
comparison. NGC6210 is almost identical. It is slightly larger, a bit
more diffuse (slightly) and a bit less striking in surface brightness
and color. However, the two could be twins! As you can tell I 
liked 6572 a bit more as one of the most colorful objects I 
have seen at this aperture. 
thanks! 
-Todd
Boston Meteorologist Todd Gross
toddg@weatherman.com
http://www.weatherman.com
(617)725-0777
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