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#astrophoto

7 posts7 participants1 post today
The Heart Nebula
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For some reason, I keep coming back to this object. I just love all of those fine details in the heart nebula and it's neighbour, the fish head nebula.

In the center of the heart nebula, there's a small open cluster of stars, called Melotte 15. These stars are responsible for the ionization of the surrounding gas, making it glow in the characteristic red hue of hydrogen alpha emissions.

The fish head nebula, also known as IC 1795, is a bright emission nebula, located in the same star-forming region as the heart nebula. It's a bit fainter than its neighbour, but still shows a lot of fine details.

Scope: Askar 103APO
Lens: Askar 0.6x Reducer
Camera: Canon EOS 6Da
Filter: Antlia TriBand RGB Ultra
Mount: Skywatcher AZ-EQ5 GT
Guiding: Svbony SV165 Guide Scope with ZWO ASI 224MC
Controller: ZWO ASIAir Pro

Integration time: 7hrs 55min

Full version and print available at: https://adfr.io/astro/20250305_ic1805

#astrophotography #astrophoto #astrophotographer #deepsky #deepskyphotography #deepskyobject #deepskyastrophotography #heartnebula #fishheadnebula

Nothing to write home about, but at least I got something visible 😀

I somehow managed to mess calibration frames so much, that darks were apparently brighter than lights (at least Siril told me, that 37% pixels after dark substraction had negative values, and result had indeed some strange all-black areas. No, I hadn't subtracted bias twice). So I had to toss the calibration out. And the noise is overwhelming. And it was shot under Bortle 6 sky. And there was moon. And I suppose I should have opted for lower ISO and longer stack. And there is coma, that was only accentuated by deconvolution, so I skipped deconvolution also. And … But!

Lumix G80, Olympus OM 300/4.5, no tracking, 152 frames stacked (out of 180, I really need a better tripod).

Continued thread

9 mètre de focale c'est beaucoup (T200 à F/45 😂 ) faut vraiment avoir peu de turbulence, jusque minuit c'était ok mais après était trop basse ou trop près de la maison (qui dégage de la chaleur ...) dommage, seul la première image du transit d'ombre est correcte. A droite les deux satellites IO et Ganymède, Europe est superposé à Jupiter et son ombre se projette sur le limbe opposé camera , projection oculaire 15mm, traitement

Flying to the Horsehead - An animation I made with DaVinci Resolve with one of my images of the Horsehead nebula in IC434.
Celestron NexStar Evolution 6 + ZWO ASI585MC Pro + HyperStar.
300mm, f2, 120 exposures of 60’’.
#telescope #telescopes #celestron #celestrontelescope #celestronnexstar #nexstarevolution #nexstarevolution6 #zwo #zwoasi #zwoasi585mc #astro #astrophoto #astrophotos #astrophotography #astrophotographer #spacephotography #astronomy #spaceexploration #nasa #universe #space #deepsky #deepspace #nebula #horsehead #horseheadnebula #b33 #barnard33 #ic434 #ngc2023
NGC 6791 ist ein lichtschwacher aber sternreicher Offener Haufen in der Leier. Die Entfernung von 6791 wird auf 13000 bis 17000 Lichtjahre geschätzt, das Alter auf etwa 8 Mrd. Jahre. Damit ist er einer der ältesten Sternhaufen in unserer Galaxis und seine Sterne sollten metallarm sein- was sie aber nicht sind. Aus diesem Grund gehört NGC 6791 zu den am häufigsten untersuchten Sternhaufen. NGC 6791 wurde im Dezember 1853 von dem deutschen Astronomen Friedrich August Theodor Winnecke entdeckt.

Aufnahmedaten:
Kamera: ZWO ASI 1600 MMP bei -18°, Gain 76
Optik: 102/920 mm Fluorit Apo bei f/7
Belichtung: Luminanz 90 m RGB je 80 m,
gesamte Belichtungszeit: 5h 30 m
Korrekturen: Bias, Dark- und Flatframes
EBV: PixInsight, Fitswork
Aufnahmeort: Münster

#astronomie #astronomy #astrophoto #astrophotography #deepsky #opencluster #sternfreundemünster