NGC 6853 (M 27) - planetary nebula in Vulpecula

© Velimir Popov & Emil Ivanov 2020

The planetary nebula NGC 6853 (also known as the Dumbbell Nebula or Messier 27) situates in the constellation Vulpecula. Spotted by Charles Messier in 1764, this was the first planetary nebula ever discovered. With an apparent magnitude of 7.4 and a diameter of 8 arc minutes, it is easy to spot with binoculars.

The latest scientific investigations (González-Santamaría, I. et al., 2019) revealed that the distance to the progenitor central star (white dwarf) of the planetary nebula NGC 6853 is 372.4 parsecs (1214.6 ly). The planetary nebula belongs to sо-called Thin-disk of our galaxy which occupies an absolute height above the galactic plane of 175.0 ± 29.2 pc (Ali et al. 2013).

This image combines a narrowband data (220 min Ha and 200 min OIII), obtained with the 12" RC astrograph with Astro-Physics corrector @ f/5 (IRIDA – South dome), as well as one hour RGB data from ASA 12" Astrograph @ f/6.3 (IRIDA – North dome) covering total exposure time of 8 hours.

Image details:


Center of field RA 19:59:38 (h:m:s)
Center of field DE +22:43:07 (deg:m:s)
Size 20.9 x 20.9 (arcmin)
Pixel scale: 1.05 (arcsec/pixel)
Orientation: Up is 0.685 degrees E of N
Charts and image details obtained from
Optic(s): RC 12" with Astro-Physics corrector @ f/5 (RC); ASA 12" Astrograph@ f/6.3
Mount: ASA DDM85 Premium; ASA DDM85 Standard
Camera: ATIK 4000 M; SBIG STL11000M
Filters: Astronomik Ha, OIII filters; Red, Green, Blue, Astronomik filters
Dates/Times: 25-26.10.2012
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: Ha: 11x20 min; OIII:10x20 min,; R: 4x5 min, G: 4x5 min, B: 4x5 min,
  Bin 1, Total Exposure Time - 480 min (8:00 hours)
More details: Dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2013 - 2020. All Rights Reserved
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