PN Abell 78  -  wide field

70%  resolution (5.0MB)

Image with 12" Newtonian (f=1120mm)

Object data of PN Abell 78

Object type: Planetary nebula
Size: 2.0'
Magnitude: 16 mag
Constellation: Cyg
Distance: 5,000 Ly
Notes: Abell 78 is a planetary nebula in constellation Cygnus. It has the unusual property of having a faint outer halo composed of normal stellar material (mostly hydrogen) and a bright inner elliptical ring composed mostly of helium. The helium ring provides direct confirmation that hydrogen is being converted to helium in the centers of stars and can later be ejected back into the galaxy's pool of gas for building another generation of enriched stars.

Exposure data

Date: 2020-08-11 + 2020-08-12 + 2020-08-20
Location: Nussbach / Austria (400m)
Telescope: Baader APO 95/560 CaF2 Travel Companion
Camera: Nikon Z6 (ISO 400)
Mount: ASA DDM85
Exposure time: 35x6min
Exposure time total: 3h30min