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NGC 6781 Planetary Nebula in Aquila

NGC6781 is a well known beautiful planetary nebula in the constellation of Aquila. With an apparent diameter of about 120" its brightness is 11.4 mag.

The now 100.000°C hot central star with 0.6 sun masses has the main emissions in the far UV. It was earlier a red giant. You can see it visually with a 6inch or even bigger instrument.

It was discovered in 1788 by William Herschel

position:

RA:   19h 18m 28s
Dekl.: +6° 32′ 19,3"

Image data
Ha-OIII-RGB (Ha,OIII 12x40m each, RGB 10x20m each), total integration time 26h, Seeing 0.7-1.2 arc-sec
80cm f/7 Astrooptik Keller corrected cassegrain, FLI Proline 16803, Baader Filters RGB, Astrodon filters NB, Prompt 7 CTIO/UNC Chile, remote controlled

image processing: Bernd Flach-Wilken

 

here you have a look of 40% of the whole CCD-field.For full resolution,click on the image!

 

 

here is a close-up of NGC6781:

 

here you can take a look through the 3,6m LaSilla ESO telescope

Last modified on Sunday, 11 October 2015 21:45

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