Pillars of Creation | HLA (Lukas Šalkauskas)

Pillars of Creation | HLA

This is my first try to process raw Pillars of Creation data from HLA(Hubble Legacy Archive) WFC3.

I took the inspiration from Wissam Ayoub image:

https://www.astrobin.com/qx4bcz/

Processing:

1) Download data, for this step its an initial copy from Wissam comment:

Go to https://hla.stsci.edu/hlaview.html

Search for LBN67, then choose the images column,

Look for the Ha, OIII and SII master files:

LBN67-UVIS (hlsp)

WFC3/UVIS F657N UVIS1-FIX

hlsp_heritage_hst_wfc3-uvis_m16_f657n_v1_drz

LBN67-UVIS (hlsp)

WFC3/UVIS F502N UVIS1-FIX

hlsp_heritage_hst_wfc3-uvis_m16_f502n_v1_drz

LBN67-UVIS (hlsp)

WFC3/UVIS F673N UVIS1-FIX

hlsp_heritage_hst_wfc3-uvis_m16_f673n_v1_drz

2) Download fits liberator.

3) Open each file in fits liberator, change strech function to ArcSinh(x)

I was using these parameters:

Background level = 0.18

Peak level = 4.35

Scaled peak level = 50.00

Save each of the files as 16bit tif.

4) Open all 3 files in PixInsight

I've combined frames using PixelMath by this formula:

R=iif(Sii>0.1,Sii,(Ha*0.7))

G=iif(Ha>0.7,1.0-(1.0-Oiii)*(1.0-(Ha-0.3)),Oiii*(Ha+0.7))

B=iif(Oiii>0.1,Oiii,(Ha*0.3)+(Oiii*0.2))

DynamicCrop with rotation

CurvesTransformation

TVGDenoise

MultiscaleMedianTransform

Star reduction by using Adam Blocks De-Emphasis Method

DarkStructureEnhance

ICCProfileTransformation

Signature script

I like what I got so far, hope you'll like it too ;)

Looking forward to process more raw data from HLA!

(If you know any interesting objects, please let me know in the comments).

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
Artificial satellite

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	Basic failed
Started	...
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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