IC1805 in SHO, RGB stars

No Comments

New workflow focused about IC1805 with narrowband and RGB data addiction.

AFter PixInSight normal workflow, parallel for SHO, HOO and RGB integration, I reached the point of star separation from nebuloisty. Starless SHO and HOO files was developed with color masks and curves transofrmation in PixInSight, thus finally cleaned and polished by NoiseXTerminator and BlurXTerminator.

SHO, starless and stars

HOO palette, starless and stars

RGB stars master was simply saved as .tiff.

SHO starless after adjustements and pixel fixing

Starless and stars composition made in Photoshop, after dedicated adjustements, with screen stars layer blending over starless SHO nebula.

Astrobin:

LDN1355 “Helping Hand Nebula” in LRGB

No Comments

LDN1355 Helping Hand Nebula in LRGB, 600 sec. subframes at -25C by Takahashi FSQ-106ED with CCD Proline FLI PL16083, from Spanish IC Astronomy Observatory, Telescopelive network.

After cosmetic correction of calibrated subframes I realized 2 LRGB integration by PixInSight: the first one by Process > ColorSpaces > LRGB combination, and the second, after integrating RGB masters, by Script > Utilities > LinLRGB operating over L master and RGB just created one.

I thus proceed with a normal post production workflow for each integration: LRGB, LinLRGB, RGB and L master: bg removal,  platesolving, Spectrophotometric color calibration, Starmask, Deconvolution manual made, with Bg-mask and PSF obtained by EZdeconvolution, first denoising by EZdenoise, Stretching, 1st Dark Structure Enhancing, Starless and Stars version for each one, 2nd Dark Structures Enhancing just to starless, Color Masking and curves transformation (starless), final denosing and sharpening by NoiseXTerminator and BlurXTerminator (still just starless), .TIFF saving.

I finally rebuilt stars + starless image in Photoshop, applying adjustements to starless and star as separated layers group, melted in Lighten blending mode.

As I wasn’t satisfied nor by LRGB,

neither by LinLRGB results,

expecially because of Luminance and contrast, I thus move for another Photoshop workflow, with RGB starless and RGB stars, respectively associated to L starless and L stars luminance layer group, in luminosity blending mode, with dedicated adjustements and opacities setting.

I found this final postproduction better ther previous results, and thus move to a crop version to better focusing about LDN1355.

Astrobin: https://www.astrobin.com/qb5b5g/D/

M20 Trifid Nebula in HOO palette

No Comments

Trifid Nebula in HOO palette. Single session of 300sec. subframes at -25 C., Planewave CDK24 and QHY 600M Pro, from Rio Hurtado Valley, Chile – Telescopelive network.

Astrobin: https://www.astrobin.com/q0yn6t/

M20 Trifid Nebula in SHO

No Comments

Trifid Nebula in SHO, 300sec. subframes at -25 C., Planewave CDK24 and QHY 600M Pro, from Rio Hurtado Valley, Chile – Telescopelive network.

Astrobin: https://www.astrobin.com/3em4g7/

NGC2403 in LRGB

No Comments

NGC2403 Galaxy in RGB. William Optics Redcat 51 and ASI1600mm Pro, 60 seconds LRGB subframes taken at -20C between 10/09/2022 and 13/02/2023, suburban 6 Bortle scale sky (Livorno – IT).

Final image is the 2nd cropped version from the wider range integration

Less incisive cropping as first attempt to get more focusing about NGC2403

12P/Pons-Brooks by C27

No Comments

Comet Pons-Brooks passing by C27, 13 January 2024.

Comet starless integrations by subframes in LRGB 60″, 3 x each filter. Star integration from RGB.

C27 and surrounding starless layer in Ha Oiii and Hbeta, 180sec subframes, from 2023 spring-summer several sessions; cfr. https://www.astrobin.com/dqa6po/C/

M31 Andromeda Galaxy in L HaR G OiiiB

No Comments

This is an attempt of narrowband and wideband data integration of M31 Galaxy, both set recorded on several sessions between 25/05/2023 and 28/11/2023.

Ha and Oiii subframes were recorded at 180 and 300 seconds; LRGB at 60 seconds, everything by William Optics Redcat 51 and ASI1600mm Pro at -20 C about.

Ha narrowband channel integrated R channel

Oiii narrowband channel integrated G and B channels

HOO palette and LRGB integration

Jupiter 04/10/2022 RGB and C IRUV block

No Comments

Jupiter 04/10/2022, Celestron C14 Edge, HD Camera Player One Uranus C IRUV block in RGB.

Astrobin:

IC342 in LRGB, single night session

No Comments

Galaxy IC342 in LRGB, single session, 2 subframes for channel, 600sec, Officina Stellare ProRC 700 with Proline FLI PL16803 at BIN2, IC Astronomy Observatory of Spain, from Telescopelive network.

A very hard postproduction because of few signal and not so good quality of data, but I really stocked into this processing.

Astrobin:

NGC7023 LBN487 Iris Nebula in LRGB Takahashi FSQ-106EDX4

No Comments

LBN487 and NGC7023 in LRGB, Takahashi FSQ-106EDX4 and Proline CCD FLI PL16083, subframes of 300sec at -25C from IC Astronomical Observatory of Spain, Telescopelive network.

I developed 3 different postproduction: an LRGB one directly developed after LRGB master integration in PixInSight.

I thus proceed to an RGB version and a final LRGB version where L channel, devided in stars and starless masters, I integrated into RGB star and starless layers group in Photoshop with different values, with stars contributing at 10% and starless Luminance at 100%.

RGB integration

Luminance starless master

Photoshop RGB and separated Luminance master available here: https://e.pcloud.link/publink/show?code=XZ9CSDZm9yOwDzwaiH2lkIx0n2x90KYsRzV

Astrobin: https://www.astrobin.com/s6a8tk/D/

Social Widgets powered by AB-WebLog.com.