|Object name:||Constellation:||Coordinates:||Apparent size:||Visual brightness:|
|Abell 70 (PK 038-25.1)||Aquila||20h32m / -07°05'||1.1' x 0.3'||14.3 mag (?)|
The planetary nebula Abell 70 (PK 038-25.1) in the constellation Aquila. Abell 70 is 13,500 - 17,500 light-years from Earth, approaching us at 79 kilometers per second and expanding 38 kilometers per second. The galaxy PGC 187663 (PMN J2033-0656) is shining through the cloud of gas of Abell 70, giving it a diamond ring effect. Abell 70 was discovered by George Abell in 1955 (source: Wikipedia).
Forty-three 3-minute exposures (129 minutes total exposure) at ISO 800, taken on August 24 / 25, 2019 and on August 26 / 27, 2019, were added for this shot with the DeepSkyStacker software and the final image processing was done in Photoshop.
Equipment: Canon EOS 450D Baader modified camera, TeleVue Paracorr Type II coma corrector, 16" f/4.5 "Ninja" dobsonian telescope riding on a dual-axis Tom Osypowski equatorial platform, Lacerta MGEN autoguider, Lacerta off axis system (field of view comparison: image of the moon with the same equipment).