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/

C/2020 V2 ZTF and NGC300

No Comments

Comet C/2020 ZTF approaching to NGC300 on 2023 October 16th and 17th.

LRGB data integration by 300sec. subframes with Takahashi FSQ-106ED (106 mm) F3.6 and CMOS camera QHY 600M Pro belonging to Telescopelive network.

C/2021 A1 Leonard 30/12/2021

No Comments

Comet Leonard C/2021 A1 from iDK Namibia remote telescope, Skygems.

Astrobin: https://www.astrobin.com/w0ah2q/

Very hard but completely stocked within this processing; mosaic is obtained by 4 different kind of imaging, at different binning. BIN2 mosaic in LRGB consisted in 3 framing. one for the comet head, another framing for the middle comet tail, third framing for distal part of comet tail.

Bin1 Luminance set finally integrated within mosaic.

Final star & starless integration in Photoshop, with numerous adjustement layers and pixel fixing needed.

Dataset available for free from Skygem network here: https://forum.skygems-observatories.com/d/104-new-year-present-c2021-a1-data-set

Calibration is not quite easy as Skygems archives missing proper dark for right calibrated masterflat creation.

C2023 E1 Atlas – LRGB – 17/07/2023

No Comments

Comet C/2023 E1 Atlas from Ic Astronomy Observatory, Spain, Takahashi FSQ-106ED (106 mm) F3.6  telescope with CMOS camera QHY600M Pro.

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

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

No Comments

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

No Comments

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

No Comments

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

No Comments
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

No Comments
C/2022 E3 ZTF, night between 28 and 29/01/2023. 120″ and 60″ subframes


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

No Comments
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


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

Social Widgets powered by AB-WebLog.com.