Comet C/2022 E3, ZTF 

Photos by Th.Boeckel, Martin Rietze (mr)


So far, the brightness is developing better than expected.

Thus, there is a real possibility that comet ZTF E3 could may reach the magnitude 4.5 (mag)* at the end of January 2023!


08.February 2023

'Clear sky' at the Auerberg (Bavaria)

The appearance of the comet ZTF E3 has now the estimated brigness of the magnitude 5,6 (mag)* and could'nt be seen anymore with the unaided eye.

     

18:45 UT, Nikon 300mm f4.0, 2x91sec, Iso 3200, , Sony a7III

19:12 UT, Newton Orion 900mm f4,5, 2x91sec, Iso 3200, Sony a7III


29.January 2023

Escape in the alps I (Heiterwang/Austria)

No chance in Germany because of a never ending bad weather caused by an gigantig dense fog layer over whole Europe.

The only hope were the southern lain areas in the EU Alps. They worked in function like a barrier and kept mostly the areas fog and cloud clean.

Comet, Komet ZTF (C/2022) E3 by  Thorsten Boeckel  Comet, Komet ZTF (C/2022) E3 by  Thorsten Boeckel

Nikon 300mm; f4.00 127sec, ISO 1600 and Newton 900mm f4.5;; Sony a7III ; 130sec,ISO 3200

Comet, Komet ZTF (C/2022) E3 by  Thorsten Boeckel

Sony a7III, Newton 900mm f4.5, 127sec,ISO 1600

Comet, Komet ZTF (C/2022) E3 by  Thorsten Boeckel  Comet, Komet ZTF (C/2022) E3 by  Thorsten Boeckel

Nikon 300mm; f4.0 and , Newton 900mm f4.5; Sony a7III,6x130sec,ISO 1600

The appearance of the comet ZTF E3 has now the estimated brigness of the magnitude 4,6 (mag)* and could be seen more or less easy with the unaided eye.

        mr

The weather situation in the Rofan mountains and in most of the alpine valleys did not allow any observations with heavy astro equipment.

So I found again in a valley at Heiterwang near Reutte with a lot of luck a clear sky. Furthermore is was at minus 12C  fu... cold!

       


27.January 2023

Escape in the alps II (Plose / Brixen / Italia)

  

Nikon 300mm, f4.0, 6x95sec und Newton 900mm f4.5; Sony a7III;130sec,ISO 3200

mr

Image stacke of apprx. one hour centered on the coma from Martin Rietze


25. January 2023

Escape in the alps III

First clear sky in Heiterwang/Reutte (Austria).

 

Nikon 300mm; f3.5, 2x60sec und Newton 900mm f4.5; Sony a7III; 2x95sec,ISO 3200

VIDEO 1    VIDEO 2   VIDEO 3

Comet, Komet ZTF (C/2022) E3 by  Thorsten Boeckel

Sony a7III, Newton 900mm f4.5,2x95sec,ISO 3200

The comet has now every good components which a special comet needs. An ionic antitail, an intnsive green coma which appears between a bright shield and a nice dust tail.

This appearance has now the estimated brigness of the magnitude 5,2 (mag)*


17. January 2023

Comet, Komet ZTF (C/2022) E3 by  Thorsten Boeckel    Comet, Komet ZTF (C/2022) E3 by  Thorsten Boeckel   Comet, Komet ZTF (C/2022) E3 by  Thorsten Boeckel

5.00UT; Newton 900mm, f4,5, Sony a7III,  3x60sec; Iso 3200, 3x crop, Germerswang/Fuerstenfeldbruck (Bavaria)

...good seeing but a 4-day moon sickle an the close range to Munich let the comet tail appear weaker!  (Comet ~ 6.3 mag* ),


27. December 2022

     Comet, Komet ZTF (C/2022) E3 by  Thorsten Boeckel     Comet, Komet ZTF (C/2022) E3 by  Thorsten Boeckel

4.56 UT;  Newton 900mm,  f4,5, Sony a7III,  4x40sec; Iso 3200, 3x crop,, Germerswang/Fuerstenfeldbruck (Bavaria)

...for half an hour clear sky, first images!   ( Comet ~7,5-8.0 mag* )


*mag  = > light magnitude: Up to mag +3 or +4 stars are visible nearby cities with the naked eye, in very dark areas the seeing limit can reach up to mag +6-7.

The more higher numerical value is given, the more weaker are the objects. E.g. - 4,7 mag, Venus glittering; - 1,0 Sirius, brightest star; + 3,5 M31 Andromeda, pale shiny oval)


All comet observations from 2001 up to now ..


   

  

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2022, Thorsten Boeckel, last modification 27/12/2022

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