(https://cdn.astrobin.com/thumbs/Yc2IJnYkGOou_1824x0_2h7hprYS.jpg)
First time with a narrowband filter.
Amazed i got this as loads of silly problems, ie wrong observatory coordinates in eqmod , and carte du ciel with the wrong time -1 hour and my flat panel cable broke thankfully after i had done flats for this.
ED66-r Altair
Asi183pro Mono
Baader Ha 7nm
15 x 150s
Roger
That's come out pretty well for a first NB image Roger.
The bright star seems to be suffering from those artifacts that Mark recently described seemingly common in these sensors. Microlensing or something.
Carole