Comet C/2022 EF ZTF - Feb 11, 2023

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gcisko United States of America
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Comet C/2022 EF ZTF - Feb 11, 2023

#1

Post by gcisko »


I took this image last night from my light polluted driveway. Not sure why it is blue instead of green, but there it is...

Telescope: Astrotech 72mm ED/ Star Adventurer mount
Camera: Sony A7
Image source: 18 images w/5 second exposure (1.5 minutes) ,
Date: 2/11/2023

Click the image or link to get the full resolution version on flickr.com

ImageComet C/2022 EF ZTF by Greg Cisko, on Flickr
Celestron EdgeHD 8, AVX | StarSense | 2" Star Diagonal | Astrotech Illuminated finder
F/7 Focal Reducer | Powertank | Orion 7x50 Binoculars
Astrotech AT72ED | Star Adventurer by SkyWatcher
Eyepieces: Tele Vue 32mm WideField & 6mm Ethos | Nagler - 9mm & 16mm Type 2
Filters: Lumimcon & Baader OIII, Baader Sky & Moon Glow, 13% Moon
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Re: Comet C/2022 EF ZTF - Feb 11, 2023

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Post by OzEclipse »


Hi Greg,

Nice image. My mate @scribbly had the same blue shift issue using a Canon Rp from my place, a non-light polluted location. He hasn't found the cause either.

I was shooting a few metres away from him, same window of time. I'm using a Pentax K1 which has the same Sony EXMOOR 36MPx sensor used in the Sony A7ii.

I pre-process in Lightroom, export 16 bit files, then stack and post process all in Photoshop.
Scribbly pre-processes in Lightroom, exports 16 bit files then stack in DSS and post process in Photoshop.

Joe
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Amateur astronomer since 1978...................Web site : http://joe-cali.com/
Scopes: ATM 18" Dob, Vixen VC200L, ATM 6"f7, Stellarvue 102ED, Saxon ED80, WO M70 ED, Orion 102 Maksutov, ST80.
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Re: Comet C/2022 EF ZTF - Feb 11, 2023

#3

Post by gcisko »


OzEclipse wrote: Sun Feb 12, 2023 11:19 pm Hi Greg,

Nice image. My mate @scribbly had the same blue shift issue using a Canon Rp from my place, a non-light polluted location. He hasn't found the cause either.

I was shooting a few metres away from him, same window of time. I'm using a Pentax K1 which has the same Sony EXMOOR 36MPx sensor used in the Sony A7ii.

I pre-process in Lightroom, export 16 bit files, then stack and post process all in Photoshop.
Scribbly pre-processes in Lightroom, exports 16 bit files then stack in DSS and post process in Photoshop.

Joe
Thanks for the info. I stacked the RAW files right out of the camera with Sequator. Nothing I could do would bring out the green. I saw you got green, but it was blueish :-) Your images of the comet are awesome as your integration time is way higher than mine. My image was only 90 seconds.
Celestron EdgeHD 8, AVX | StarSense | 2" Star Diagonal | Astrotech Illuminated finder
F/7 Focal Reducer | Powertank | Orion 7x50 Binoculars
Astrotech AT72ED | Star Adventurer by SkyWatcher
Eyepieces: Tele Vue 32mm WideField & 6mm Ethos | Nagler - 9mm & 16mm Type 2
Filters: Lumimcon & Baader OIII, Baader Sky & Moon Glow, 13% Moon
ASIair Pro & ZWO ASI533MC
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messier 111 Canada
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Re: Comet C/2022 EF ZTF - Feb 11, 2023

#4

Post by messier 111 »


nice , thx .
I LOVE REFRACTORS , :Astronomer1: :sprefac:

REFRACTOR , TS-Optics Doublet SD-APO 125 mm f/7.8 . Lunt 80mm MT Ha Doublet Refractor .

EYEPIECES, Delos , Delite and 26mm Nagler t5 , 2 zoom Svbony 7-21 , Orion Premium Linear BinoViewer .

FILTER , Nebustar 2 tele vue . Apm solar wedge . contrast booster 2 inches .

Mounts , berno mack 3 with telepod , cg-4 motorized , eq6 pro belt drive .

“Your assumptions are your windows on the world. Scrub them off every once in a while, or the light won't come in.”
― Isaac Asimov

Jean-Yves :flags-canada:
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Re: Comet C/2022 EF ZTF - Feb 11, 2023

#5

Post by Makuser »


Hello Greg. A very nice Comet C/2022 EF image from you using your Sony ILCE-7 camera. Excellent contrast and the head and tail are just dazzling in this capture Greg so thanks for sharing this view with us on here.
Marshall
Sky-Watcher 90mm f/13.8 Maksutov-Cassegrain on motorized Multimount
Orion Astroview 120ST f/5 Refractor on EQ3 mount
Celestron Comet Catcher 140mm f/3.64 Schmidt-Newtonian on alt-az mount
Celestron Omni XLT150R f/5 Refractor on CG4 mount with dual axis drives.
Orion 180mm f/15 Maksutov-Cassegrain on CG5-GT Goto mount.
Orion XT12i 12" f/4.9 Dobsonian Intelliscope.
Kamakura 7x35 Binoculars and Celestron SkyMaster 15x70 Binoculars. ZWO ASI 120MC camera.
>)))))*>
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