Abell 85 - CTB1

Supernova remnant (SNR) with an apparent diameter of a Full Moon. It's a very challenging object to photograph, as it is quite faint. Without using Ha and OIII filters, the SNR is virtually invisible. Captured in 5 nights, from October, 2018 to January, 2019 (13.5 Hours of global exp.)

 

Camera: Moravian G2 8300

Filters: 31mm unmounted Optolong

Optic: Triplet Apo Tecnosky 80mm f/4.8

Mount: Ioptron CEM60 HP

Autoguider: camera Magzero 5m, SW 70/500, Phd guiding

Frames: Ha 7nm: 27X600sec - OIII 6.5nm: 27X600sec - RGB: 9X600 sec each bin1

Processing: Pixinsight, Photoshop

Done