NGC 2264: Cone Nebula (ivnlpz)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: 15 S Mon · 16 Mon · B39 · Christmas Tree Cluster · Hubble's variable neb · LBN 899 · LBN 902 · LBN 911 · LBN 912 · LBN 920 · LBN 922 · LDN 1609 · LDN 1610 · LDN 1613 · Monoceros · NGC 2259 · NGC 2261 · NGC 2264 · NGC 2265 · PK201+02.1 · Sh2-273 · The star 15Mon · The star 16Mon

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NGC 2264: Cone Nebula

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NGC 2264: Cone Nebula

The Christmas Tree Cluster is the bright, open cluster of stars in the center of the image. It sits in a region of emission nebulosity, which includes the famous Cone Nebula towards the bottom. These objects are located in the Monoceros constellation and are located about 2,300 light-years from Earth.

Preprocessing in PI:
- WBPP for calibration, cosmetization and debayaring
- StarAlignment
- SubframeSelector to find best image by PSF signal and weight
- LocalNormalization using best image by PSF
- ImageIntegration using best image by weight as reference
- DrizzleIntegration using scale of 1 as anything else was generating artifacts in the stars

Processing in PI:
- DynamicCrop
- PixelMath to split into Ha and Oiii layers
- DBE
- LinearFit Oiii using Ha as reference
- EZ soft stretch
- PixelMath to combine into HOO image (stars)
- StarXterminator on Ha and Oiii - I've found I get cleaner images if I remove the stars before combining into a color image
- PixelMath to combine into HOO image (nebula)

Postprocessing stars:
- LRGBCombination using Ha as luminance
- TGVDenoise
- ACDNR
- CurvesTransformation
- StarXterminator
- SCNR

Postprocessing nebula:
- Extract luminance
- TGVDenoise, ACDNR, MLT and EZ HDR on luminance
- LRGBCombination using Ha as luminance
- CurvesTransformation
- LocalHistogramEqualization with RangeSelection masks
- DarkStructureEnhance
- PixelMath to stars back
- final CurvesTransformation

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IOptron CEM
WO Redcat 51 Group
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PixInsight Addicts

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
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Star trails
Northern lights
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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
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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	5566336
PixInsight job	OUED2PR1N9A7CVO0HGXIJTH5PCUXGGSN
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h41m00s.99
RA (top/left)	06h46m59s.99
RA (top/right)	06h35m07s.12
RA (bottom/right)	06h35m06s.77
RA (bottom/left)	06h46m49s.88

Dec (center)	+10°19′44″.5
Dec (top/left)	+12°28′35″.2
Dec (top/right)	+12°29′26″.6
Dec (bottom/right)	+08°10′30″.3
Dec (bottom/left)	+08°09′42″.5

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NGC 2264: Cone Nebula

NGC 2264: Cone Nebula

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NGC 2264: Cone Nebula

NGC 2264: Cone Nebula

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