Celestial hemisphere:  Northern  ·  Constellation: Ursa Minor (UMi)  ·  Contains:  1 UMi)  ·  1 alf UMi  ·  2 UMi  ·  23 UMi)  ·  23 del UMi  ·  24 UMi  ·  Alrucaba  ·  Cinosura  ·  IC 455  ·  IC 469  ·  IC 499  ·  IC 512  ·  Mismar (α UMi  ·  NGC 1544  ·  NGC 188  ·  NGC 2276  ·  NGC 2300  ·  NGC 3172  ·  NGC 6251  ·  NGC 6252  ·  Part of the constellation Ursa Minor (UMi)  ·  Polaris  ·  Polarissima Borealis  ·  Sh2-178  ·  The star 2 UMi  ·  The star 24 UMi  ·  The star Polaris  ·  The star Yildun  ·  The star λ UMi  ·  Tramontana  ·  And 4 more.
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Polaris with IFNs, AstroHannes68
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Polaris with IFNs

Getting plate-solving status, please wait...
Polaris with IFNs, AstroHannes68
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Polaris with IFNs

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Description

Dear Colleagues!

Thanks to heaven we had again a clear night with stars so bright as diamonds!
May thanks a again to my parents allowing me this session taking place at 2023-04-17,18!

Image data:
2023-04-17,18: 159 Lights (Polaris) [60s, F2.0-F2.8, ISO1600, Samyang 135mm F2, Z6]

PI:
1.) I = WBPP, GXP, BXT, NXT, SPCC, HT, DC, BXT, NXT
2.) separation of stars  and nebula
     n = SXT (I)-n, BXT, HT, NXT, HT, SCNR (G), CMS, Conv
     s = SXT (I)-s, CMS, M (CT), CC, SCNR (G), CONV, HT
3.) apply PixelMath
     PM (n+s), HT, DC

CS and be fascinated,
Johannes

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Polaris with IFNs, AstroHannes68