Abell 39, LRGBO3 & RGBO3 (AnaTa)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: PK047+42.1

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Abell 39, LRGBO3 & RGBO3

Revision title: This is LRGBO3 version

Powered byPixInsight

Abell 39, LRGBO3 & RGBO3

Revision title: This is LRGBO3 version

Abell 39 is very dim in LRGB. Thus, L, G and B show hint of it, while R does not show it at all. Similarly, SII does not show it. Ha is extremely dim. Abell 39 could reliably revealed by at least 5 min O3 exposure.

Processing:
RGB are combined.
Cropping for RGB, Lum and O3
Color Colib for RGB
Blur and Noise XT for RGB, Lum ands O3
Manual stretching (with HT) RGB, Lum and O3
Created LRGB
Created RGB and LRGB stars by Star XT
Created RGBO3 and LRGBO3 using PixelMath R - no change, G multiply 1.1x factor, B multiply 2x factor.
Noise XT again for RGBO3 and LRGBO3
Stretching again for RGBO3 and LRGBO3
Star XT. These stars have been discarded.
Simple Lum mask for RGBO3 and LRGBO3
Local Histogram Equalization: Kernel radius of 40 and then 150
Multiscale-median transform for sharpness.
Curves: saturation and brightness are manipulated.
Mask off.
Saturated stars are added. RGB stars for RGBO3 and LRGB stars for LRGBO3
Done

Original
Final
B

B

Title: This is LRGBO3 version

Uploaded: ...

Nebulas (Planetary)

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

Distribution of astrophotographers

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	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	8009290
PixInsight job	OD9ECNQCCARLAD4KZB9Y19PPQ7AELUS3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h27m33s.789
RA (top/left)	16h26m57s.371
RA (top/right)	16h26m56s.751
RA (bottom/right)	16h28m10s.116
RA (bottom/left)	16h28m10s.949

Dec (center)	+27°54′36″.91
Dec (top/left)	+28°02′48″.60
Dec (top/right)	+27°46′34″.55
Dec (bottom/right)	+27°46′24″.88
Dec (bottom/left)	+28°02′38″.68

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Contribution Index (beta):

Abell 39, LRGBO3 & RGBO3

Revision title: This is LRGBO3 version

Abell 39, LRGBO3 & RGBO3

Revision title: This is LRGBO3 version

Equipment

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Description

Comments

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B

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Image Index:

Contribution Index (beta):

Abell 39, LRGBO3 & RGBO3

Revision title: This is LRGBO3 version

Abell 39, LRGBO3 & RGBO3

Revision title: This is LRGBO3 version

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these collections

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