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Abell 39 Planetary Nebula

Abell 39 is a low surface brightness planetary nebula in the constellation of Hercules. It is estimated to be about 6800 light-years from earth and 4600 light-years above the Galactic plane.It is almost perfectly spherical and also one of the largest known spheres with a radius of about 2.5 light-years.

Location - Exposure Dates

Mauna Keratea Obs, 1-2 June 20103

Telescope

Toscano 10" Truss RC f/9 Astrograph

Mount

Celestron CGE Pro EQ Mount

Camera

QHY9 KAF 8300 mono CCD, Temp -25 C

Guiding

60/230mm Lunatico's Guidescope , QHY5, PHD Guide

Filters / Exposures

L 18x300 sec bin 1x, RGB  12x180 bin 2x

Total Exposure Time

3,5 ~ hours

Software

Nebulosity 3,Maxim DL, Pixinshight, Photoshop CS6.

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