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Contains:  10 ome02 Sco, 10.38, 12.29, 13.59, 14 nu. Sco, 19 omi Sco, 27 Euterpe, 4 psi Oph, 455 Bruchsalia, 49 Lib, 5 rho Oph, 7 del Sco, 8 bet01 Sco, 8 bet02 Sco, 86 Semele, 9 ome01 Sco, B40, B41, B42, Dschubba, Graffias, IC 4592, IC 4601, IC 4603, IC 4604, IC4596, IC4601, IC4603, IC4604, Jabbah, M 80, M80, NGC 6093, Part of the constellation Scorpius (Sco), Scorpius, Sh2-7, The star 49Lib, The star Dschubba (δSco), The star Graffias (β1Sco), The star β2Sco, The star νSco, The star οSco, The star ρOph, The star ψOph, The star ω1Sco, The star ω2Sco, VdB101, VdB102, VdB103, rho Oph nebula
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IC 4592 Blue Horsehead Nebula

Technical card

Imaging telescopes or lenses:Samyang 135mm f/2

Imaging cameras:Canon 650D(a)

Mounts:SkyWatcher Star Adventurer

Software:PixInsight 1.8 RipleyAdobe Photoshop

Dates:May 25, 2017

Frames: 200x60" ISO800

Integration: 3.3 hours

Darks: ~10

Flats: ~30

Bias: ~150

Avg. Moon age: 29.15 days

Avg. Moon phase: 0.17% job: 1606834

RA center: 16h 12' 57"

DEC center: -19° 57' 58"

Pixel scale: 6.833 arcsec/pixel

Orientation: -90.266 degrees

Field radius: 5.939 degrees

Resolution: 5208x3476

Locations: Tenerife, Tenerife, Canary Islands, Spain


The next image from my trip to Tenerife. I am quite pleased how the horse head like shape of this object shows.



License: Attribution-NonCommercial-ShareAlike Creative Commons



Description: Incorrect background extraction fixed. Thank you David (


Description: A few hot pixels fixed. Sorry for being sloppy this time.

Sky plot

Sky plot


IC 4592 Blue Horsehead Nebula, 



In these public groups

Skywatcher Star Adventurer