3-Panel SHO Mosaic of the Deneb Region (Robert H. Kutner)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 50 Cyg) · 50 alf Cyg · 55 Cyg · 56 Cyg · 57 Cyg · Arided · Aridif · Arrioph (α Cyg · B349 · B350 · B355 · Deneb · IC 5068 · IC 5070 · LDN 914 · LDN 915 · LDN 917 · LDN 918 · LDN 922 · LDN 926 · LDN 928 · LDN 929 · LDN 930 · LDN 931 · LDN 933 · LDN 935 · LDN 936 · LDN 940 · NGC 6989 · NGC 6997 · And 6 more.

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3-Panel SHO Mosaic of the Deneb Region

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3-Panel SHO Mosaic of the Deneb Region

Along with Vega and Altair, Deneb is one of the stars of the prominent asterism, the Summer Triangle.

3-panel mosaic taken over multiple nights around the star Deneb.

Acquired 3 seperate SHO sets, 1 set for each panel, ~22 to 26 x 300s images @ -10c & 100g, 1x1 bin, ~95% were usable.

Blink / Subframe Select, Calibrated (60 Dark, 60 Flat, 100 Bias), Star Aligned all images with PixInsight. Used the Normalized Scale Gradient for integration.

DBE each panel for Sii and Oiii only, Star Aligned with Mosaic Union to generate a template for Star Alignment, panels were 'matched' images to the template with Star Alignment. Registered/'matched' panels were dnaLinearfit prior to GMM. Repeated the Mosaic Union to GMM to combine each panel into a 3-panel mosaic of each channel.

For Ha, Sii, & Oiii channels: Dynamic Cropped, SCNR, TGV, MMT (& duplicated the Ha here for the Lum), EZ Soft Stretch, and PixelMath to combine using a dynamic SHO palette:

R = (Oiii^~Oiii)*Sii + ~(Oiii^~Oiii)*Ha
G = ((Ha*Sii)^~(Ha*Sii))*(.8*Ha+.2*Oiii) + ~((Ha*Sii)^~(Ha*Sii))*(.9*Oiii)
B = .9*Oiii + .1*Ha

The duplicated Ha -> Lum was Mask Stretched, STF Stretched, HDR, DSE, LHT, MMT, and LRGB Combined with the PixelMath SHO image.

The combined image was PhotometricCC, TGV, MMT, EZStarReduction, Curves modified w/ masks, Annotated and Resampled.

Cloudy Nights

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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	Advanced success
Started	...
Astrometry.net job	6053666
PixInsight job	9YJ20JNO79MXF3N3V04B5MQ40WZ9QEHT
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h48m31s.88
RA (top/left)	20h47m37s.70
RA (top/right)	20h33m00s.65
RA (bottom/right)	20h49m29s.23
RA (bottom/left)	21h03m11s.50

Dec (center)	+44°12′46″.1
Dec (top/left)	+41°06′18″.4
Dec (top/right)	+45°41′50″.9
Dec (bottom/right)	+47°20′05″.7
Dec (bottom/left)	+42°36′38″.5

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3-Panel SHO Mosaic of the Deneb Region

3-Panel SHO Mosaic of the Deneb Region

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Image Index:

Contribution Index (beta):

3-Panel SHO Mosaic of the Deneb Region

3-Panel SHO Mosaic of the Deneb Region

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

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