Pre 30 Planetary Nebula in Sagittarius

This faint planetary nebula has been discovered in March 2017 by the DSH member Trygve Prestgard. It shows very symmetric bipolar shells and extends 13 by 50 arc-sec.
Its emissions are not pure O-III, but also visible in RGB, so it could be a protoplanetary nebula.

Position: RA 18:35:26  DEC -17:01:00

Image data:
OIII-RGB (1080-140-140-140 min) total 25 h, north is up, seeing 1.0-1.5 arc-sec,
80cm f/7 Astrooptik Keller cassegrain, FLI PL-16803, Astrodon LRGB GenII filters, Prompt 7 CTIO Chile

Processing: Johannes Schedler
Find the partly cropped image in 100/200% size below.

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Last modified on Sunday, 06 August 2017 13:09

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