reedmideke, 5 months ago

Actually it's right on top of a 10th mag star so it's even less there than it looks

reedmideke, 5 months ago

Checking in on #Comet #12P #PonsBrooks … still there, still pretty faint

#Astrophotography #Astrodon

reedmideke, 2 months ago

#Comet #12P #PonsBrooks and #M31 last night

#Astrophotography #Astrodon

reedmideke, 2 months ago

Timelapse version, with lots of pesky satellites https://flic.kr/p/2pDCSgD

reedmideke, 2 months ago

#Comet #12P #PonsBrooks last night. Proper tail now, even with my unguided 10 year old P&S (Canon G7 X, 240x5s, ISO 800, 100mm EFL, aligned on the comet and stacked with hacky #gmic scripts and tortured in #gimp)

#Astrophotography #Astrodon

reedmideke, 2 months ago

How tortured?

1. A single sub
2. What the stack looks like when you open it in gimp (it's 32 bit FP so you can streeeeeeeeeeeeeetch)
3. Then you stretch and there's a horrible sky gradient

#Astrophotography #Astrodon

The top part of the same image, but it's now smooooooooooooth instead of noisy and the comet has a little visible tail.
The same scene again. There are a lot more stars and more of the comet's tail is visible. The sky fades from dark, noisy blue at the top to red fog at the bottom

reedmideke, 2 months ago

#Timelapse of the frames used for that #Comet #12P #PonsBrooks shot up thread. So many more satellites, a few years ago I'd expect maybe 3-4 or in a shot like this. Doesn't really affect anything in this case (unlike the airplanes, which were bright enough to show up in a 240 frame average after stretching) but definitely noticeable
https://flic.kr/p/2pH2hqi

#Astrophotography #Astrodon

reedmideke, 1 month ago

#Comet #12P #PonsBrooks (very faintly visible, upper left) over the #Moon last night. This is a somewhat fake composite of 100 4 second frames, aligned separately on the stars, moon and foreground. Too close to twilight to get much of the comet

#Astrophotography

reedmideke, 1 month ago

#Comet #12P #PonsBrooks (bottom center) below the #Moon last night, a bit later, more exposure and more frames than the previous shot. Again somewhat fake: Composite of the same stack aligned separately on the moon and stars.
Also visible: #Jupiter, Callisto, Ganymede, maybe Europa if you squint at the glare around Jupiter, and #Uranus (relatively bright blueish object almost directly above Jupiter)
#Astrophotography #Astrodon

reedmideke, 1 month ago

#Comet #12P #PonsBrooks below Jupiter sinking into the murk on April 11. Probably my last opportunity for this one

#Astrophotography #Astrodon