Cygnus not quite as Wide Field (Jim Medley)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 59 Cyg · 62 Cyg · 63 Cyg · IC 5068 · IC 5070 · IC 5076 · NGC 6989 · NGC 6997 · NGC 7000 · North America Nebula · Pelican Nebula · The star 55 Cyg · The star 56 Cyg · The star 57 Cyg · The star 60 Cyg · The star f1 Cyg · The star f2 Cyg · The star ξ Cyg

Cygnus not quite as Wide Field, Jim Medley

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Cygnus not quite as Wide Field

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Cygnus not quite as Wide Field

Imaged last night using a Pentax Super Takumar SMC 200mm f/4.0 lens on the modified Canon 550D. Immediately after acquiring 1 hour with the 135 lens, I managed to change lenses without overly impacting the polar alignment. Processed with star reduction in APP, set at 60% radius and intensity.

Original
B
C
Final
D

B

Title: Integrated with 135mm data

Description: I integrated the data collected using the 135 mm lens into the 200 mm set, for a total of 172 minutes of acquisition time. I figure using the two different frame sizing is essentially similar to dithering for reducing S/N and it worked. Star Reduction reduced to 75% radius and intensity.

Uploaded: ...

C

Title: 60% Star Reduced

Description: same as before, all 135 and 200 mm frames integrated and cropped to fill the 200 mm frame.

Uploaded: ...

D

Title: Stretched

Uploaded: ...

Imaged with APT

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Basic success
Started	...
Astrometry.net job	5921833
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Cygnus not quite as Wide Field

Cygnus not quite as Wide Field

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Image Index:

Contribution Index (beta):

Cygnus not quite as Wide Field

Cygnus not quite as Wide Field

Equipment

Acquisition details

Description

Comments

Revisions

B

C

D

Sky plot

Histogram

In these public groups

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