Two tubes, two cameras, two nights, two friends... one nebula! (Luigi Fontana)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent Nebula · NGC 6888 · Sh2-105

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Two tubes, two cameras, two nights, two friends... one nebula!

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Two tubes, two cameras, two nights, two friends... one nebula!

***** ENG: The Crescent Nebula (NGC 6888) in Cygnus using two optics and two cameras for two nights, last June (obviously around the shortest nights, here in Italy). The ODK 12" has the SBIG 11k with Halfa, while the 130 APO used the Canon 450 Baader for color. "Fusion" by Edoardo Radice. We agree there is still significant space for improvments. A flat error (some dust moved??) created a spurious effect in the nebula, clearly visible in Ha. The Ha only and color only images are also available.

***** ITA: La nebulosa "Crescent" NGC 6888) nel Cigno ripresa usando due tubi e due camere sulla stessa montatura. ODK 12" con Sbig 11000 e filtro Halfa, APO 130 con Canon 450 Baader per il colore. La non facile "fusione" delle due immagini è opera di Edoardo Radice. Edo e io concordiamo che ci sia spazio per miglioramenti significativi. Purtroppo un "errore" di flat (un pelucco che si è spostato sul filtro?) ha provocato un fastidioso effetto spurio sulla nebulosa, evidente in Ha. Pubblico anche le immagini Ha e colore "sole".

Original
B
C
Final
E

B

Description: Color image

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C

Description: Halfa image

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E

Description: Harder post-processing

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Status	Advanced success
Started	...
Astrometry.net job	4148657
PixInsight job	I22GUTV2DTS8ZEUKCGTQ3KQHKMWS9AT1
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	20h12m05s.24
RA (top/left)	20h10m10s.48
RA (top/right)	20h10m32s.62
RA (bottom/right)	20h13m58s.24
RA (bottom/left)	20h13m39s.80

Dec (center)	+38°23′09″.6
Dec (top/left)	+38°52′11″.7
Dec (top/right)	+37°51′19″.0
Dec (bottom/right)	+37°54′02″.1
Dec (bottom/left)	+38°54′53″.5

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Two tubes, two cameras, two nights, two friends... one nebula!

Two tubes, two cameras, two nights, two friends... one nebula!

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Two tubes, two cameras, two nights, two friends... one nebula!

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