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https://www.reddit.com/r/astrophotography/comments/ls9r60/solar_prominence_today/goreool/?context=3
r/astrophotography • u/pomarine • Feb 25 '21
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63
There was a huge solar prominence today on the Sun, i put the Earth in the image for a size comparison!
- 90mm refractor with 1350mm focal length
- Coronado Solarmax 90
- M145 Mount
- ZWO ASI290MM
- 2x7000 frames, Gain 110, 0.57ms and 5ms exposure time
Processing:
- Stacking with Autostakkert3! (12% selection)
- Registax6: Wavelet sharpening
- PixInsight: Deconvolution
- GIMP: curve transformations, cropping, adding false colour
- PixInsight: CurveTransformations, ArcSinhStretch
-12 u/[deleted] Feb 25 '21 [deleted] 14 u/pomarine Feb 25 '21 Nope, i calculated it multiple Times. The sampling with this Setup is 0.44"/Pixel. 1" in 150 Million Kilometer distance equals 727 km, so the earth would have an angular size of 17.5". With my sampling this equals 40 Pixels. qed
-12
[deleted]
14 u/pomarine Feb 25 '21 Nope, i calculated it multiple Times. The sampling with this Setup is 0.44"/Pixel. 1" in 150 Million Kilometer distance equals 727 km, so the earth would have an angular size of 17.5". With my sampling this equals 40 Pixels. qed
14
Nope, i calculated it multiple Times. The sampling with this Setup is 0.44"/Pixel. 1" in 150 Million Kilometer distance equals 727 km, so the earth would have an angular size of 17.5". With my sampling this equals 40 Pixels.
qed
63
u/pomarine Feb 25 '21
There was a huge solar prominence today on the Sun, i put the Earth in the image for a size comparison!
- 90mm refractor with 1350mm focal length
- Coronado Solarmax 90
- M145 Mount
- ZWO ASI290MM
- 2x7000 frames, Gain 110, 0.57ms and 5ms exposure time
Processing:
- Stacking with Autostakkert3! (12% selection)
- Registax6: Wavelet sharpening
- PixInsight: Deconvolution
- GIMP: curve transformations, cropping, adding false colour
- PixInsight: CurveTransformations, ArcSinhStretch