Horsehead region of Orion

An old favourite target, the Horsehead and Flame Nebulae in Orion. The bright blue star in between the two nebulae is Alnitak which is the left most star in Orion's belt (as viewed from UK latitudes). Could have done with more Hydrogen alpha acquisition but looks like dismal cloudy weather again for a while so publishing this as is...

 

Equipment:

- Redcat 51 (250mm focal length at f/4.9)

- ASI1600MM mono camera

- HaRGB filters in EFW filter wheel

- ZWO EAF focuser

- Ioptron GEM28 mount

 

Acquisition:

24 Jan 2023

- 20 x 60s each RGB for stars

- 18 x 300s Ha

with camera sensor at -15degC

 

Processing:

APP, StarTools and Gimp.

Done