3 ms·
Should have posted this a couple weeks ago while Andromeda was in a good position for observation in the bay area-- its now setting pretty close to sundown. He
by nullc 5y ago
Should have posted this a couple weeks ago while Andromeda was in a good position for observation in the bay area-- its now setting pretty close to sundown.
Here is an image I took of it w/ a full frame camera on a tripod and a 200mm lens back on Feb 7th, https://files.catbox.moe/59swbu.jpg https://files.catbox.moe/59swbu.jpg
- teh_klev 5y agoThat's pretty nice. Was that a single exposure, or multiple? Did you need to use a motorised tracker?
- nullc 5y agoLots of exposures, which were slightly too long: I think those were on the order of 0.7 seconds (which is why the stars were elongated). I just went back out every ten minutes to keep the camera pointed at the target, and used the free software package siril to calibrate, register, and combine the images. I was pleased enough with that result and the images I took of some other targets with that technique, I got a tracking equatorial mount. Ironically, my first images from it were worse due to exposing the sensors banding that escaped calibration which had been covered up by all the frame to frame motion in my untracked images: https://files.catbox.moe/r0vlqt.jpg https://files.catbox.moe/r0vlqt.jpg (I've since figured out how to address the noise, https://files.catbox.moe/fu23xd.jpg https://files.catbox.moe/fu23xd.jpg , but now Andromeda sets too early to photograph until months from now. :) )