NGC2403 in LRGB

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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

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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.

M31 Andromeda Galaxy in L HaR G OiiiB

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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

Sh2-136 and NGC7023 region in narrowband

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William Optics Redcat 51 and ASI1600mm Pro narrowband records for this region, 180 seconds subframes in Ha, Hb, Oiii and Sii and Optolong Lpro 60 seconds.

Lpro and SHO integration

Sii Ha and Oiii+Hbeta integration


NGC7000 region in SHO and Hbeta

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Cygnus NGC7000 region in narrowband, with Hbeta records as integration of Oiii emission for Blue channel.


This is the second of a 2 panel mosaic focused about this region of Cygnus, so rich and beautiful! Subframes recorded between 27/05/2023 and 12/09/2023 with William Optics Redcat 51 and ASI1600mm Pro, at -20C, gain 173 and 180sec of exposition; some subframes at 300sec expecially for Halpha channel help in faint nebulosity detail emerging.

Typical SHO palette

Ha Oiii and Hbeta palette integration

Photoshop master with layers group and adjustement vailable here:

Framelist (Astrobin CSV preformatted) available here:

HIP102483 region in SHO and Hbeta

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HIP102483 Cygnus region in narrowband, SHO and Hbeta channels.

This is the first of a couple of panel mosaic of narrowband recording focused about NGC7000 region in Cygnus; subframes of 180sec at -20C taken between 28/05/2023 and 22/08/2023 with ASI1600mm Pro under William Optics Redcat 51, mont EQM35 Pro.

SHO classic palette integration, with annotations

Ha Oiii and Hbeta palette integration

My preferred integration, with Sii for red channel, Ha for green and Oiii + Hbeta for blue.

Caldwell 27 and Sadr region mosaic in SH Oiii and Hb

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2 plates mosaic for this region of Cygnus.
Hbeta narrowband channel I used to integrate Oiii data.


Sadr region in SHO and Hb

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Astronomik H-alpha CCD 6nm: 405×180,″(20h 15′) (gain: 173.00) -20°C bin 1×1
Astronomik OIII CCD 6nm: 270×180,″(13h 30′) (gain: 173.00) -20°C bin 1×1
Astronomik SII CCD 6nm: 316×180,″(15h 48′) (gain: 173.00) -20°C bin 1×1
Optolong H-beta 25nm 1.25″: 180×180,″(9h) (gain: 173.00) -20°C bin 1×1

Integrazione:58h 33′

Giorno lunare medio:13.70 giorni

Fase lunare media:53.65%

Scala del Cielo Scuro Bortle:6.00

NGC6871 region in SHO and Hbeta

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Third panel belonging to mosaic project focused about Cygnus core.

Subframes in narrowband recorded between 05/03/2023 and 08/07/2023, 180sec at -20 Celsius by ASI1600mm Pro at gain 173 on William Optics Redcat 51.

SHO palette

Ha Oiii Hbeta palette

M29 (NGC 6913) region in SHO and Hb

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M29 region in narroband, Sii Ha and Oiii+Hb; Hydrogen Beta records I used to integrate Oxigen channel.

Setup is: William Optics Redcat 51 with ASI1600mm Pro, 180 sec. subframes recorded between 02/03/2023 and 31/07/2023; complete framelist available here >

This is the second panel of a mosaic project I’m actually postprocessing.

Starless stage made during postprocessing.

Final starry image made in Photoshop; .psd file with layers and adjustements available here >

SHO integration

Ha Oiii Hbeta integration

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