Horsehead nebula IC 434 (Duane Melvin)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 48 Ori · 48 sig Ori · 50 Ori) · 50 zet Ori · Alnitak · B33 · Flame Nebula · HD290773 · HD290812 · HD290814 · HD290815 · HD290849 · HD290852 · HD290853 · HD290854 · HD294228 · HD294229 · HD294268 · HD294269 · HD294270 · HD294272 · HD294273 · HD294274 · HD294276 · HD294277 · HD294278 · HD294279 · HD294280 · HD294281 · HD294282 · And 66 more.

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Horsehead nebula IC 434

Powered byPixInsight

Horsehead nebula IC 434

Date: 11-26-2022 Author: Duane Melvin
Darkness: Clear skies, Bortle 6
Transparency: above average
Seeing: average
Moon: 3% waxing Crescent

65 subframes for a total of 120 Seconds for each subframe

25 Subs with Radian Triad Ultra Quad Filter 2 inch dia mounted in Starizona magnetic tray; gain=100 offset=0
40 Subs with Optolong L-Pro 2-inch dia mounted in Starizona magnetic tray; gain=100 offset=0
5 darks. It is noteworthy to mention these two sets of filtered FITs exposures were simply stacked all together!
I was pleasantly surprised to see this highlighted and detailed result without merging stretched images of each filter
later within the postprocessing tool and trying to paint in highlights etc. Easy is good!

Main Astro Camera: Orion G26 color, 16 bits, APS-C sensor, 26 MP, cooled to +2 Degrees C.

Telescope: Skywatcher Esprit 100ED Triplet Refractor 100mm x 550mm no reduction
Field Flattener: Esprit supplied flattener
Mount: EQ6R Pro
Scope Heat: SVbony wrap heaters
Focusing: Hand-focused using Bahtinov Mask
Ambient temperature 0 Degrees C.
Location, Time, Date, Altitude Information: Synscaninit cellphone app
Exact N.C.P RA axis Polar Alignment: QHY Polemaster Camera/Software tool

Guiding: Orion Short Refractor 80mm x 300mm doublet
Orion Starshoot TM camera on ST4 cable direct to mount

Software: Qhy Polemaster
PHD Guiding
Astrophotography Tool (APT) for image capture
Deep Sky Stacker
Pixinsight/Star Xterminator
Photoshop/StarSpikes 4.0
Adobe Lightroom

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	6648520
PixInsight job	6S7T4NUDQRYW4OXMZ4836R7KCUVR5C6F
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h41m21s.55
RA (top/left)	05h43m21s.98
RA (top/right)	05h35m39s.75
RA (bottom/right)	05h39m21s.37
RA (bottom/left)	05h47m02s.93

Dec (center)	-02°27′05″.0
Dec (top/left)	-01°07′17″.5
Dec (top/right)	-02°29′52″.2
Dec (bottom/right)	-03°46′47″.8
Dec (bottom/left)	-02°24′11″.7

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Horsehead nebula IC 434

Horsehead nebula IC 434

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Horsehead nebula IC 434

Horsehead nebula IC 434

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