Tuesday, July 14, 2009

NGCs 6803 and 6804 in Aquila

These twain are fairly difficult. 6803 is impossible to find when employing the Pocket Sky Atlas. Insufficient stars are depicted in that handy yet slender tome. However, it is fairly easy to find once an average amateur astronomer resorts to the Sky Atlas 2000 which features slightly more stars. 6804 is hard because it is very hard to see without a filter and also difficult with a filter at low power. About the best I could do is with 100x and OIII. Even then, that cuss is better averted. However, it is fairly big, dwarfing the tiny nearby stars. 6803 also responds well to OIII. I recommend blinking 6803 because at 100x there is a close adjacent star that dims while 6803 suddenly brightens more than that star. It’s a good one for blinking.

So now I get to officially add two pns to the fairly famous list, Planetary Nebulae Visible in the Polluted Skies over Austink. That list may be easily accessed by typing in Planetary Nebulae in the white box above, then hit search blog button.

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