Quote:
Originally Posted by Placidus
Given the constraints of 1 minute subs, DSLR, and unguided, that's impressive. (Took us 50 hours with a 20" to get the faintest outer chevrons.) You've got a good haul of small galaxies in the image.
The elongated stars are a bit puzzling. The ones at the top left are elongated toward top left, and the ones at top right are elongated toward top right. The ones in the centre are elongated vertically. Those at the bottom left and right corners are much better. That doesn't fit with field rotation, periodic error, or wind buffet. Some combination of camera tilt, mirror flop, and flattener spacing? You'd think that would appear in all subs, not just some, but if there was movement under gravity during the night, it could do it. Out of my depth here, but hoping it might trigger some ideas.
Despite the elongated star question, it's a great image.
Best,
Mike
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Thanks M&T. It's gremlins. I'll just have to stop feeding them after midnight.
Quote:
Originally Posted by billdan
Looks pretty good Kevin, those outer shells are really hard to pull out.
You can always add more to it it next year.
Bill
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Thanks Bill. I guess I can always add to it. Better to start again though I think.