Barnard 32 and Cederblad 51 in Lambda Orionis Ha Oiii

[gorann]

I should really not aim this close to the horizon under a nearly full moon but the NBX Oiii Ha filter made a rather good job, but I could only use 2 - 3 hours of the subs each night before the bright horizon started to fade out the signal.

Cederblad 51 is stated to be a reflection nebula but I wonder if it also emits Oiii since the NBX filter should not pick up much blue reflection nebulosity.

Collected 27-28 Feb with the RASA 8 and ASI2600MC and NBX filter (Ha+Oiii). 34 x 500s, so totally 4.7 hours. Stacked in PI and processed in PS and PI.

EDIT: added a annotated image from Astrobin showing the Barnards in there

Edited March 2, 2021 by gorann