Víctor R. Ruiz2d ago
Christian Fröschlin
Two views of this evening's #ISS pass over The Hague. 44 / 14 x 0.2 ms unfiltered mono in Celestron 8" + 2.5x powermate. #astrophotography
Mar 21 at 8:22pmWeb
Show threadChristian Fröschlin1d ago

Correction these were shot without powermate at f/10. Today I tried the powermate on the #ISS but (as with earlier barlow experiments) there seems to be not much benefit because the higher resolution comes at the cost of longer exposures which increase motion blur.

https://mastodon.social/@chrfrde/116275113453982228

Show threadlatuernich2d ago
@chrfrde Is it possible to resolve smaller satellites with that telescope as well?
Show threadChristian Fröschlin2d ago
@latuernich technically yes in the sense that it may resolve to more than one pixel but it is unlikey to show useful detail. ISS is about 100m from end to end so you can see useful resolution here is about 1m/pixel.
Show threadChristian Fröschlin2d ago
@latuernich I feel old now realizing how long I've been doing this but here is an image I tried 2014 of the automated transfer vehicle that is about 10m long so large enough to show a bit of structure but well you see...