C/2020 F3 Neowise 08/08/2020 ZTF data

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This incredible beautiful set of data from IRSA / ZTF retrieval system https://irsa.ipac.caltech.edu/frontpage/ allows me to a second post-production attempt focused about Neowise comet of 2020.

I still cannot get rid of comet registration alignment by PixInSight, thus just played a hand allineation or R(zr) G(zg) and B(zi) channels in photohop of comet starless image, and then adding stars as new layer in “screen” blending mode.
After some research about Palomar 48 inches Samuel Oschin Schmidt telescope and ZTF camera I found here : https://www.ztf.caltech.edu/ztf-camera.html

and especially here : https://iopscience.iop.org/article/10.1088/1538-3873/ab4ca2/pdf
https://doi.org/10.1088/1538-3873/ab4ca2  ]
all data necessary for letting PixInsight plate solving and annotates final image.

Apart of aesthetic results, what is important is that if pixinsight works in annotation after platesolving, I hypothesize it could works also in comet registration after a proper platesolving of single channels masterframe; I’m going to try asap.

C/2020 E3 Neowise 24/07/2020 ZTF data

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Thanks to Taras Prystavski contribute on Astrobin forum ( https://www.astrobin.com/forum/c/group-forums/comets-imaging/c2020-f3-neowise-comet-raw-data-from-remote-hosting/ ) I retrieved from IRSA resource all available data from ZTF telescope focused about Neowise comet; cfr. IRSA / ZTF – https://irsa.ipac.caltech.edu/applications/ztf/?__action=layout.showDropDown&

PixInSight had some problem in platesolving because of peculiar fits header, thus also was impossible to perform image registration > comet registration.
I thus worked just by star registration of the few subframes and then play an image integration for each filter: I assigned R channel to zr filter, G to zg and B to zi even I suspect other choose may be taken.
After that I made starless and star version for each channel and integrate in pixinsight the starry master, and in photoshop the starless master handly stacking rgb comet.

I finally played some photoshop tricks for pixel fixing, framing, dust lanes enhancing, etc…
I would like a more wider field of view for a next attempt, but I confess to me is simply exciting and so so funny to make post-production over these enormous scientific quality data from such powerful instruments! As when I play with JWST or Hubble data (cfr. https://mast.stsci.edu/portal/Mashup/Clients/Mast/Portal.html )  I’m simply totally stoked!
Thanks again to Taras!!!

C2022 E3 ZTF 31/12/2022

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Comet ZTF from Telescopelive network, telescope Takahashi FSQ-106EDX4 of Almeria, Spain, camera Proline FLI PL16083, 31/12/2022

Astrobin: https://www.astrobin.com/r6u9bj/

C/2021 A1 Leonard

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C/2021 A1 Leonard 31/12/2021

Telescopelive: https://telescope.live/gallery/c2021-a1-leonard-0

Astrobin: https://www.astrobin.com/z7rxb0/

Astrometry: https://nova.astrometry.net/user_images/7582376#annotated

C/2021 A1 Leonard, annotations by PixInSight
White Balance values according to PixInSIght > Spectrophotometric Color Calibration

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 29/01/2023 – group 2

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Comet C/2022 E3 ZTF starless (PixInSight > Starnet 2) group 2 subframes integration
C/2022 E3 ZTF comet, 60″ subframes in LRGB taken during 29/01/2023 night, from 19:57 about

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

Astrometry: https://nova.astrometry.net/user_images/7310563#annotated

Telescopi O Obiettivi Di Acquisizione: William Optics Redcat 51

Camere Di Acquisizione: ZWO ASI1600MM Pro

Montature: Sky-Watcher EQM-35  ×

Filtri: Astronomik L-1 Luminance UV/IR Block 1.25″ · Astronomik Type 2c Blue 1.25″ · Astronomik Type 2c Green 1.25″ · Astronomik Type 2c Red 1.25″

Accessori: DeepSkyDad Flap Panel (FP1) · ZWO ASIAIR Plus · ZWO EAF · ZWO EFW 8 x 1.25″ / 31mm

Software: Adobe Photoshop · Pleiades Astrophoto PixInsight

Telescopi O Obiettivi Di Guida: QHYCCD Mini Guide Scope

Camere Di Guida: ZWO ASI120MM Mini

 Dettagli d’acquisizione

Date:29 Gennaio 2023

Pose:

Astronomik L-1 Luminance UV/IR Block 1.25″: 60×60″(1h) (gain: 137.00) -20°C bin 1×1
Astronomik Type 2c Blue 1.25″: 60×60″(1h) (gain: 137.00) -20°C bin 1×1
Astronomik Type 2c Green 1.25″: 60×60″(1h) (gain: 137.00) -20°C bin 1×1
Astronomik Type 2c Red 1.25″: 60×60″(1h) (gain: 137.00) -20°C bin 1×1

Integrazione: 4h

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

Giorno lunare medio: 8.19 giorni

Fase lunare media: 58.58%

Scala del Cielo Scuro Bortle: 6.00


Comet C/2022 E3 ZTF 
Night of 29/01/2023, group 2 subframes, 60″ x 60 x LRGB; bad weather, partially cloudy and windy.

Spectphotometric Color Calibration White balancing stars chart and value, PixInSight

C/2022 E3 ZTF – 26 & 27/01/2023

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Comet C/2022 E3 ZTF, night between 26 and 27/01/2023. 60 sec. LRGB subframes

Astrobin: https://www.astrobin.com/a2bvdn/

Astrometry: https://nova.astrometry.net/user_images/7304982#annotated

Telescopi O Obiettivi Di Acquisizione William Optics Redcat 51

Camere Di Acquisizione ZWO ASI1600MM Pro

Montature Sky-Watcher EQM-35  ×

Filtri: Astronomik L-1 Luminance UV/IR Block 1.25″ · Astronomik Type 2c Blue 1.25″ · Astronomik Type 2c Green 1.25″ · Astronomik Type 2c Red 1.25″

Accessori DeepSkyDad Flap Panel (FP1) · ZWO ASIAIR Plus · ZWO EAF · ZWO EFW 8 x 1.25″ / 31mm

Software Adobe Photoshop · Pleiades Astrophoto PixInsight

Telescopi O Obiettivi Di Guida QHYCCD Mini Guide Scope

Camere Di Guida ZWO ASI120MM Mini

Dettagli d’acquisizione

Date: 26 Gennaio 2023 ·  27 Gennaio 2023

Pose:

Astronomik L-1 Luminance UV/IR Block 1.25″: 60×60″(1h) (gain: 173.00) -20°C bin 1×1
Astronomik Type 2c Blue 1.25″: 60×60″(1h) (gain: 173.00) -20°C bin 1×1
Astronomik Type 2c Green 1.25″: 60×60″(1h) (gain: 173.00) -20°C bin 1×1
Astronomik Type 2c Red 1.25″: 60×60″(1h) (gain: 173.00) -20°C bin 1×1

Integrazione: 4h Dark:33 Flat:33 Dark dei flat:33

Giorno lunare medio: 5.72 giorni

Fase lunare media: 32.82%

Scala del Cielo Scuro Bortle: 6.00


Dettagli astrometrici di base

Astrometry.net job: 7133573

Risoluzione: 3180×2270

Dimenzione file: 30,7 MB

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

Origine dei dati: Giardino

Comet subframes integration, starless master (PixInSight, Starnet 2)
Spectophotometric Color Calibration, White balance parameters, by PixInSight

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

C-2022 E3 ZTF – 10/01/2023

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C-2022 E3 ZTF – 10/01/2023

Astrobin: https://www.astrobin.com/4j6mnr/

Astrometry: https://nova.astrometry.net/user_images/7161626#annotated

Telescopi O Obiettivi Di AcquisizioneWilliam Optics Redcat 51Camere Di AcquisizioneZWO ASI1600MM ProMontatureSky-Watcher EQM-35  ×FiltriAstronomik L-1 Luminance UV/IR Block 1.25″ · Astronomik Type 2c Blue 1.25″ · Astronomik Type 2c Green 1.25″ · Astronomik Type 2c Red 1.25″AccessoriDeepSkyDad Flap Panel (FP1) · ZWO ASIAIR Plus · ZWO EAF · ZWO EFW 8 x 1.25″ / 31mmSoftwareAdobe Photoshop · Pleiades Astrophoto PixInsight

 Dettagli d’acquisizione

Date:10 Gennaio 2023Pose:

Astronomik L-1 Luminance UV/IR Block 1.25″: 10×60″(10′) (gain: 173.00) -20°C bin 1×1
Astronomik Type 2c Blue 1.25″: 10×60″(10′) (gain: 173.00) -20°C bin 1×1
Astronomik Type 2c Green 1.25″: 10×60″(10′) (gain: 173.00) -20°C bin 1×1
Astronomik Type 2c Red 1.25″: 10×60″(10′) (gain: 173.00) -20°C bin 1×1Integrazione:40′Dark:33Flat:33Dark dei flat:33Giorno lunare medio:17.92 giorniFase lunare media:89.18%Scala del Cielo Scuro Bortle:6.00

Risoluzione: 3451×4585

Dimenzione file: 90,6 MB

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

Origine dei dati: Giardino

 Descrizione

Comet C-2022 E3 ZTF from Livorno, Bortle 6 degree suburban sky.
Rare minutes of clear sky let me take about 10 subrafems of 60″ in LRGB between 4 and 6 a.m..
Very hard set to combine due to comet alignment shifting parameters.
Postproduction PixInSight, StarXtermintator, Adobe Photoshop.
Link here to raw .fits file of comet and star integration by Pixelmath.

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