Dealing with a backlog of observations here: some nice sunspots imaged with a 5-inch SCT in IR 804nm. The image is not rectangular because I cut out a sensor dust mote. (Click to enlarge)
Stag Lane Observatory
David Arditti's Astronomy site
Dealing with a backlog of observations here: some nice sunspots imaged with a 5-inch SCT in IR 804nm. The image is not rectangular because I cut out a sensor dust mote. (Click to enlarge)
David:
Very nice image, did you also use a Baader film as the primary filter?
Best wishes,
Eric.
Dear Roel,
No, the primary filter was a Thousand Oaks Type 2+ glass filter. I find these give much the same results as the Baader film, but they are more durable.
David
David:
Thanks for your answer.
Regards,
Eric.