Horsehead Nebula in HOO (ivnlpz)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: 46 eps Ori · 48 sig Ori · 50 zet Ori · Alnilam · Alnitak · B33 · Flame Nebula · Horsehead nebula · IC 426 · IC 431 · IC 432 · IC 434 · IC 435 · LBN 921 · LBN 924 · LBN 925 · LBN 927 · LBN 944 · LBN 946 · LBN 950 · LBN 953 · LBN 954 · LBN 958 · LBN 962 · LBN 965 · LBN 967 · LDN 1614 · LDN 1630 · LDN 1635 · LDN 1636 · And 12 more.

Powered byPixInsight

Horsehead Nebula in HOO

Powered byPixInsight

Horsehead Nebula in HOO

The Horsehead Nebula is a small dark nebula in the constellation Orion. The nebula is located just to the south of Alnitak, the easternmost star of Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex

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
- EZ denoise on HA
- LinearFit Oiii using Ha as reference
- EZ soft stretch
- Reduce halo strength with PixelMath, Convolution and HistogramTransformation
- PixelMath to combine into HOO image

Postprocessing:
- LRGBCombination using Ha as luminance
- TGVDenoise
- ACDNR
- CurvesTransformation
- MLT to slightly sharpen image
- LocalHistogramEqualization with RangeSelection masks
- EZ star reduction
- final CurvesTransformation

N.I.N.A. Users
Texas Astronomy
WO Redcat 51 Group
Narrowband imaging
Suburban Astrophotography
PixInsight Addicts
IOptron CEM
/r/astrophotography
The refractors!

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	5507272
PixInsight job	8JUQ7U1Z6SRFEXGDF95LMPVYX0MXJB1J
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h40m29s.15
RA (top/left)	05h34m48s.18
RA (top/right)	05h34m40s.78
RA (bottom/right)	05h46m11s.16
RA (bottom/left)	05h46m16s.27

Dec (center)	-02°27′05″.8
Dec (top/left)	-00°17′43″.8
Dec (top/right)	-04°35′25″.3
Dec (bottom/right)	-04°36′23″.3
Dec (bottom/left)	-00°18′41″.9

Image Index:

Contribution Index (beta):

Horsehead Nebula in HOO

Horsehead Nebula in HOO

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Horsehead Nebula in HOO

Horsehead Nebula in HOO

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information