IC1805 in SHO, RGB stars

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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

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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/

M45 Pleiades

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M45 Pleiades

Astrobin:

Astrometry:

Telescopelive:

C/2022 E3 ZTF 28, 29/01/2023

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C/2022 E3 ZTF, night between 28 and 29/01/2023. 120″ and 60″ subframes

Astrobin:

Astrometry: https://nova.astrometry.net/user_images/7357487#annotated

Starless comet standalone integration: PixInSight, Starnet
White balance parameters by PixInSight > Spectrophotometric Color Calibration

C-2022 E3 ZTF – 20/01/2023

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C-2022 E3 ZTF comet in LRGB, 2023 January, the 20th

Astrobin:

Astrometry: https://nova.astrometry.net/user_images/7219668#annotated

SH2-157, NGC7635 region in SHO palette

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Region of SH2-157 and NGC7635 in narrowband filters, SHO palette.
From Bortle 6th degree sky in Livorno, Italy – home balcony.
William Optics Redcat 51 and ASI1600mm Pro cooled at -20 Celsius.
Mount SW EQM35 Pro, setup ground on Asiair Pro.

Astrobin: https://www.astrobin.com/kf7q9p/

Astrometry: https://nova.astrometry.net/user_images/6036245#annotated

Strumentazione

Telescopi O Obiettivi Di AcquisizioneWilliam Optics Redcat 51

Camere Di AcquisizioneZWO ASI1600MM Pro

Montature Sky-Watcher EQM-35

Filtri Astronomik H-alpha CCD 6nm · Astronomik OIII CCD 6nm · Astronomik SII CCD 6nm

AccessoriZWO ASIair Pro · ZWO EAF · ZWO EFW 8 x 1.25″ / 31mm

Software Adobe Lightroom · Adobe Photoshop · Pleiades Astrophoto PixInsight

Telescopi o Obiettivi di Guida QHYCCD Mini Guide Scope, Camere Di Guida ZWO ASI120MM Mini

 Dettagli d’acquisizione

Date:30 Aprile 2022 ·  02 Maggio 2022Pose:

Astronomik H-alpha CCD 6nm: 99×180″ (4h 57′) (gain: 139.00) -20°C bin 1×1
Astronomik OIII CCD 6nm: 132×180″ (6h 36′) (gain: 139.00) -20°C bin 1×1
Astronomik SII CCD 6nm: 92×180″ (4h 36′) (gain: 139.00) -20°C bin 1×1

Integrazione:16h 9′

Dark:33, Flat:33, Dark dei flat:33

Giorno lunare medio:15.36 giorni

Fase lunare media:1.37%

Scala del Cielo Scuro Bortle:6.00


Dettagli astrometrici di base

Astrometry.net job: None

Risoluzione: 4544×3483

Luoghi: Home (balcony), Livorno, Livorno, Italia

Origine dei dati: Giardino

SH2-188 Firefox Nebula region

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SH2-188 Firefox Nebula region in SHO palette

Astrobin:

Astrometry:

IC1805 IC1848 mosaic in SHO palette

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A mosaic composition of IC1805 and IC1848 in SHO palette

Strumentazione
Telescopi O Obiettivi Di Acquisizione
William Optics RedCat 51 Petzval APO
Camere Di Acquisizione
ZWO ASI 1600MM-Cool Pro
Montature
Skywatcher EQ35M
Filtri
astronomic Oiii 6nm · Astronomic SII 6nm 1.25 · Astronomic 1,25″ Luminance · Astronomik H alpha 12 nm 2 inch Astronomik
Accessori
ZWO 8x 1.25″ Filter Wheel (EFW)
Software
ZWO ASIair Pro · Pleiades Astrophoto PinInsight · Lightroom · Photoshop · Astroberry
Telescopi O Obiettivi Di Guida
QHYCCD QHY Mini Guide Scope
Camere Di Guida
ZWO ASI120MM Mini

Astrobin: https://www.astrobin.com/d6ztz3/

Astrometry: https://nova.astrometry.net/user_images/5912911#annotated

Dettagli d’acquisizione
Date:
09 Settembre 2021 · 12 Settembre 2021 · 28 Ottobre 2021 · 01 Novembre 2021
Pose:
Astronomic SII 6nm 1.25: 309×180″ (15h 27′) (gain: 139.00) -20°C bin 1×1
Astronomik H alpha 12 nm 2 inch Astronomik: 324×180″ (16h 12′) (gain: 139.00) -20°C bin 1×1
astronomic Oiii 6nm: 481×180″ (24h 3′) (gain: 139.00) -20°C bin 1×1
Integrazione:
55h 42′
Dark:
33
Flat:
33
Dark dei flat:
33
Giorno lunare medio:
14.04 giorni
Fase lunare media:
27.69%
Scala del Cielo Scuro Bortle:
6.00
Dettagli astrometrici di base
Astrometry.net job: 5778789

Risoluzione: 5702×2519

Luoghi: Home (balcony), Livorno, Livorno, Italia

Origine dei dati: Giardino

IC1805 SHO palette

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IC1805 nebula in SHO palette

Astrobin: https://www.astrobin.com/0j5j61/

Astrometry: https://nova.astrometry.net/user_images/5912785#original

Telescopi O Obiettivi Di Acquisizione
William Optics RedCat 51 Petzval APO
Camere Di Acquisizione
ZWO ASI 1600MM-Cool Pro
Montature
Skywatcher EQ35M
Filtri
astronomic Oiii 6nm · Astronomic SII 6nm 1.25 · Astronomic 1,25″ Luminance · Astronomik H alpha 12 nm 2 inch Astronomik
Accessori
ZWO 8x 1.25″ Filter Wheel (EFW)
Software
ZWO ASIair Pro · Pleiades Astrophoto PinInsight · Lightroom · Photoshop · Astroberry
Telescopi O Obiettivi Di Guida
QHYCCD QHY Mini Guide Scope
Camere Di Guida
ZWO ASI120MM Mini

Dettagli d’acquisizione
Date:
28 Ottobre 2021 · 01 Novembre 2021
Pose:
Astronomic SII 6nm 1.25: 153×180″ (7h 39′) (gain: 139.00) -20°C bin 1×1
Astronomik H alpha 12 nm 2 inch Astronomik: 170×180″ (8h 30′) (gain: 139.00) -20°C bin 1×1
astronomic Oiii 6nm: 298×180″ (14h 54′) (gain: 139.00) -20°C bin 1×1
Integrazione:
31h 3′
Dark:
33
Flat:
33
Dark dei flat:
33
Giorno lunare medio:
23.80 giorni
Fase lunare media:
34.21%
Scala del Cielo Scuro Bortle:
6.00
Dettagli astrometrici di base
Astrometry.net job: None

Risoluzione: 4656×3436

Luoghi: Home (balcony), Livorno, Livorno, Italia

Origine dei dati: Giardino

NGC2549 – 48 millions ly

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NGC2549 (in the middle) and NGC2521 (down right)

Lenticular galaxy, 48 million of lightyears. RGB integration, with R channel made by red and H alpha filter data integration.

Cropped close-up to NGC2549
Annotation of DSO with PGC – Principal Galaxies Catalogue and NGC specification.

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