Getting plate-solving status, please wait...
Pillars of Creation | HLA, 



    
        

            Lukas Šalkauskas

Pillars of Creation | HLA

Getting plate-solving status, please wait...
Pillars of Creation | HLA, 



    
        

            Lukas Šalkauskas

Pillars of Creation | HLA

Technical card

Basic astrometry details

Astrometry.net job: 4117199


Resolution: 6674x7243

Data source: Professional, scientific grade data

Description

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).

Comments

Histogram

Pillars of Creation | HLA, 



    
        

            Lukas Šalkauskas