Eastern Veil and Pickering's Triangle - a learning session (Uwe Deutermann)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 52 Cyg · Filamentary nebula · IC 1340 · LBN 191 · LDN 868 · Lace-work nebula · NGC 6960 · NGC 6974 · NGC 6979 · NGC 6992 · NGC 6995 · Network nebula · Sh2-103 · The star 52Cyg · Veil nebula

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Eastern Veil and Pickering's Triangle - a learning session

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Eastern Veil and Pickering's Triangle - a learning session

This was indeed a learning session, packed with some pretty rookie mistakes, hence the combined image is not the way I would have liked to see.

No 1: Never change the imaging train setup during multiple sessions of the same object. It changes the scale of the image, and of course the angle is usually not the same as well (if you are not patient to set it up correctly).

No 2: Do not add too many spacers between the reducer and the camera, it results in a horrible coma at the edges of the image.

No 3: Avoid combining different exposure times (I mean twice). It makes the processing a ton more difficult, and I am spending already a lot of processing time without this 'mistake'.

No 4: Take at least 10 images for each channel, the noise is just too high using a smaller set. 10 is the minimum, the more the better.

No 5: Don't be impatient when setting up the first images, if I would have rotated the camera I would have had the western veil as well! Take your time, you will not regret it!

Well ... at least something came out of it, I still keep it in the set of final products.

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Final
B

B

Description: Astrobin repair only.

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Status	Advanced success
Started	...
Astrometry.net job	3246673
PixInsight job	GP9G8IIK4QVKASMO2CFRTKS30FVI2A4W
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h51m37s.91
RA (top/left)	20h58m21s.41
RA (top/right)	20h57m19s.97
RA (bottom/right)	20h44m42s.90
RA (bottom/left)	20h46m06s.36

Dec (center)	+31°10′30″.5
Dec (top/left)	+29°41′39″.8
Dec (top/right)	+32°51′28″.3
Dec (bottom/right)	+32°37′41″.6
Dec (bottom/left)	+29°28′36″.3

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Eastern Veil and Pickering's Triangle - a learning session

Eastern Veil and Pickering's Triangle - a learning session

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Eastern Veil and Pickering's Triangle - a learning session

Eastern Veil and Pickering's Triangle - a learning session

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