|The planetary nebula Abell 70 (PK 038-25.1) in the constellation Aquila
on August 24 / 25, 2019 and on August 26 / 27, 2019. Abell 70 is 13500-17500 light-years from earth, is approaching earth at 79 kilometers per second and
expanding 38 kilometers per second. The galaxy 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).
Fourty-three 3 minute exposures at ISO 800 were added for this shot with the DeepSkyStacker software (resulting in a 2 hour and 9 minute exposure)
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).