20210609 - NGC 6992 The Veil Nebula - Planning and execution
What was the experience
[NL] Had eerst gepland om de ‘unfinished business’ met North America & The Pelican af te werken. Maar bij de set up van de scope merkte ik wat de reden was van de Dec-drift-off de dag voordien. De camera sleepte uiteindelijk tegen de tripod. Bij 45deg Dec komt de camera te dicht bij de tripod aan. Geen tijd/zin om de setup te veranderen en toch maar besloten om ander object te nemen: The Veil Nebula. Vlug de coördinaten op telescopius opgezocht, de frameing voor de camera, en dan aan de slag. Alles manueel afgeregeld op de iOptron SkyGuider Pro, en de frameing manueel wonderwel goed gekregen (Dec heeft geen fijnafstelling, dus dit zijn heel zachte tikjes).300s subs, en de tracking bleef spot-on, minder dat 1,3” afwijking. Heaven is with us this night 🤩 40 subs vooraleer de morning glow er weer aankomt. Genoeg als een goede start …
[EN] Had first planned to finish the “unfinished business” with North America & The Pelican. However, when setting up the rig, I noticed what the reason was for the severe Dec-drift-off the night before. With 45deg Dec, the camera is hitting the tripod. Didn’t want to bother changing the setup/orientation, so decided on another object with slightly lower Dec: The Veil Nebula. Looked up the coordinates on telescopius, the frameing for the camera and went at it. Everything manually correctly pointed with the iOptron SkyGuider Pro, and managed to get the frameing near exact like planned (Dec doesn’t have any fine-tuning, so this is small ticks and squeezes to get it right) 300s subs, and the tracking stayed spot-on, less than 1.3” deviation. Heaven is with us this night 🤩 40 subs before morning glow comes along. Enough for a decent start …
What’s in the picture(s)
Telescopius planning & framing
NGC6992 - Veil Nebula -
https://en.wikipedia.org/wiki/Veil_NebulaQuote: “The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.
It constitutes the visible portions of the Cygnus Loop, a supernova remnant, many portions of which have acquired their own individual names and catalogue identifiers. The source supernova was a star 20 times more massive than the Sun which exploded between 10,000 and 20,000 years ago. At the time of explosion, the supernova would have appeared brighter than Venus in the sky, and visible in daytime”
Ook te vinden op Astrobin:
How it was done
Scope: WO RedCat 51
Mount: iOptron SkyGuider Pro
Guiding: ASIAIR Pro, ZWO30F4, ASI120MM (RA guiding only)
Camera: ASI183MC Pro
Resolution: 1,98”/pixel
FoV 218’
Filter: Optolong L-Extreme
Moon n/a, Bortle 5/6
Processing: Siril - Extracting Ha and OIII, recombining as HHOO into LRGB, Adobe Photoshop - (Mac)
NGC 6992 - Gain 125, cooling -10, 300s, 40x
Darks 11x - from previous take, to remove the amp glow)
What have I learned from this
Anything goes the night before the Solar Eclipse 🤩
Clear Skies everybody! 🤩✨🔭
#astrophotography #astrophoto #astrophotos
#backyardastronomy #astronomy
#backyardastrophotography #astrography #astrography_ #backyard
#deepsky #nightsky #NGC6992 #VeilNebula #Nebula
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