Baade 1 (Ba 1, PK 171-25.1, PN G171.3-25.8) Planetary Nebula in Taurus. Taken over several nights
from Dec. 17, 2017 through Jan. 17, 2018. Imaged with Starlight Xpress’ SX-825 camera and a
Celestron EdgeHD 9.25 at f10, on a Losmandy G11/Gemini mount. The H alpha and Oiii subframes were 20
minutes binned 1x1, while the RGB subframes were 5 minutes binned 1x1, resulting in the following
total exposures (HA+OIII):(R+Ha):(G+OIII):(B+OIII) (min) = (380+400):(35+380):(35+400):(35+400). The
capture and display resolution is 0.57 arc-seconds per pixel. Captured with Nebulosity, calibrated
and sigma combined in Iris with other processing using PixInsight LE and Photoshop CS. North is up.