ngc7822 - 1013 60 secs unguided subs taken on the nights of the 4th and 6th of September 2021 (Stefano Ciapetti)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: 10 Cas · LBN 577 · LBN 580 · LBN 581 · LBN 582 · LBN 583 · LBN 584 · LBN 585 · LBN 586 · LBN 587 · LBN 588 · LBN 589 · LBN 590 · LDN 1260 · LDN 1263 · LDN 1264 · LDN 1266 · LDN 1267 · LDN 1268 · LDN 1269 · LDN 1270 · LDN 1271 · LDN 1273 · LDN 1275 · LDN 1276 · LDN 1277 · LDN 1278 · LDN 1279 · LDN 1281 · NGC 7762 · And 7 more.

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ngc7822 - 1013 60 secs unguided subs taken on the nights of the 4th and 6th of September 2021

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ngc7822 - 1013 60 secs unguided subs taken on the nights of the 4th and 6th of September 2021

This image is the sum of 1013 60 secs unguided subs taken during the nights of the 6th and 4th of September 2021 from my home terrace. Setup is as follow:

Canon 70-200 F4 lens at 100 FL - Asi 533 - Optolong L-Extreme - Ioptron Smart EQ

No darks and flats were taken - Aquisition with Astroart 7 - processing with PS (Crop, curves, noise reduction). I think that this type of subjects are very good for the L-Extreme filter.

NGC 7822 is a young star forming complex in the constellation of Cepheus. The complex encompasses the emission region designated Sharpless 171, and the young cluster of stars named Berkeley 59. The complex is believed to be some 800–1000 pc distant, with the younger components aged no more than a few million years (wikipedia)

Original
B
Final
C

B

Description: color adjustment

Uploaded: ...

C

Description: New processing including also sh2 170 in order to image the famous "cosmic question mark". Image is not stretched in order to hide the background difference between ngc 7822 and sh2 170 areas.

Uploaded: ...

ASI533MC Pro
Broadband under Bortle 7/8/9
Short exposures DSO
Suburban Astrophotography
Camera Lens Astrophotography
Low-Cost Astrophotography
Fast Newtonians
Imagers of Italy

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Status	Advanced success
Started	...
PixInsight job	CG2PD0FW5JVKR3VZFQ2I8QV03QD9MMM0
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h01m28s.45
RA (top/left)	23h34m52s.25
RA (top/right)	00h31m31s.30
RA (bottom/right)	00h22m16s.68
RA (bottom/left)	23h37m26s.22

Dec (center)	+66°46′23″.10
Dec (top/left)	+69°41′53″.7
Dec (top/right)	+69°22′42″.2
Dec (bottom/right)	+63°37′33″.6
Dec (bottom/left)	+63°52′49″.8

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ngc7822 - 1013 60 secs unguided subs taken on the nights of the 4th and 6th of September 2021

ngc7822 - 1013 60 secs unguided subs taken on the nights of the 4th and 6th of September 2021

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ngc7822 - 1013 60 secs unguided subs taken on the nights of the 4th and 6th of September 2021

ngc7822 - 1013 60 secs unguided subs taken on the nights of the 4th and 6th of September 2021

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