Observation by Steve Knight: International Space Station
Uploaded by
Steve Knight
Observer
Steve Knight
Observed
2021 Mar 23 - 19:20
Uploaded
2021 Mar 23 - 21:20
Objects
Spacecraft
Equipment
- Skywatcher 12in Dobsonian
- 2.5x Powermate
- ASI174MM camera
- 642nm bandpass filter
Exposure
0.559ms, gain 310, 77%
Location
Banbury
Target name
ISS
Title
International Space Station
About this image
My quest for a clearer image of ISS continues. Seemed to come together tonight, moon a very helpful focussing aid. Setting a 50% region of interest helped a lot. Suddenly went from 60fps to 265 fps. Despite it being hand tracked I had many frames showing it and could pick the good ones. 25 frames stacked in Autostakkert and processed in Registax.
Files associated with this observation
Like this image
Philip Masding,
Chris Hooker,
Bill Leatherbarrow,
Callum Potter,
Grant Privett,
Manolo_Rodriguez,
Martin Lewis,
Ron Arbour,
Nick Hewitt,
David Basey,
Jeremy Shears,
Peter Mulligan,
Mike Harlow,
Tim Haymes,
Peter Meadows,
Martina McGovern,
Simon Kidd,
James Weightman,
Graham Winstanley,
Ian Hynes,
Mattia Piccoli
Comments
Very nice image, Steve, with plenty of detail and the exposure is just right. You would probably do even better with a bigger image scale, i.e. by using a 3x or maybe 5x Barlow.
Well done!
Chris
Nice capture Steve,
With these CMOS cameras the max fps is dictated by the height of the ROI rather than the width so if you select an ROI keeping the full frame width but just dropping the height you will maximise the collecting area and still get the benefit of the increased frame rate.
Martin
Thanks guys, wish I’d known that last night Martin, a really useful tip. I thought tonight (if clear) I’d dispense with 642nm band pass filter and replace it with IR blocking only and reduce exposure. Maybe 5x Powermate tomorrow.
Copyright of all images and other observations submitted to the BAA remains with the owner of the work.
Reproduction of work by third parties is expressly forbidden without the consent of the copyright
holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in
any
of our publications.