Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 108  ·  M 97  ·  NGC 3556  ·  NGC 3587  ·  Owl Nebula  ·  PGC 2475026  ·  PGC 2476173  ·  PGC 2476549  ·  PGC 2477242  ·  PGC 2477924  ·  PGC 2478521  ·  PGC 2478573  ·  PGC 2479134  ·  PGC 2479429  ·  PGC 2479466  ·  PGC 2480115  ·  PGC 2480239  ·  PGC 2481299  ·  PGC 2481387  ·  PGC 2482169  ·  PGC 2482280  ·  PGC 2483306  ·  PGC 2483762  ·  PGC 2483895  ·  PGC 2484482  ·  PGC 2485269  ·  PGC 2486236  ·  PGC 2486887  ·  PGC 2487391  ·  PGC 2488942  ·  And 75 more.
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M97(Owl Nebula, NGC 3587), M108(Surfboard Galaxy), JI YONG HO
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M97(Owl Nebula, NGC 3587), M108(Surfboard Galaxy)

Getting plate-solving status, please wait...
M97(Owl Nebula, NGC 3587), M108(Surfboard Galaxy), JI YONG HO
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M97(Owl Nebula, NGC 3587), M108(Surfboard Galaxy)

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Description

Both Messier 97 and Messier 108 were discovered by Pierre Méchain in February 1781. Located in the Big Dipper, these two objects are too small to be of interest to astrophotographers. There are many small galaxies around, and I think it's a good subject for dealing with planetary nebulae and meeting galaxies.
  • Date : 2023-03-26~27
  • Place : Inje in Korea (Bortle 3)
  • Telescope : Skywatcher 8" Quattro 200 CF (F/4)
  • Corrector : TS GPU Coma corrector 1.0x
  • Mount : SONA 25-25 Harmonic drive EQ mount
  • Guide : SvBony 60mm f/4, ZWO ASI174mm mini
  • Camera :ZWO ASI2600mm pro (Gain 100, offset 50, -20°C)
  • Filters : Antlia L,R,G,B 36mm
  • Exposure :
  • L : 60s x 168 (2.8h)
    R : 90s x 20 (0.5h)
    G : 90s x 20 (0.5h) 
    B : 90s x 20 (0.5h) 
    Dark, Flat, DarkFlat, Bias
  • ​​​​Tools : ASIAIR plus, Pixinsight, StarXTerminator, NoiseXTerminator, BlurXTerminator, Photoshop

인제은하수.jpg

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M97(Owl Nebula, NGC 3587), M108(Surfboard Galaxy), JI YONG HO

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AstroPhotographers of South Korea