Photos by Th.Boeckel
So far, the brightness is developing better than expected.
Thus, there is a real possibility that comet ZTF E3 could
reach the magnitude 4
at the end of January 2023!
25. January 2023
First clear sky in Heiterwang/Reutte (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
The comet has
every good components which a special comet
needs. An ionic antitail, an intnsive green coma
which appears between a bright shield and a nice
This appearance has now the estimated brigness
Sony a7III, Newton 900mm f4.5,2x95sec,ISO 3200
17. January 2023
...good seeing but a
4-day moon sickle an the close range to Munich
let the comet tail appear weaker!
Newton 900mm, f4,5, Sony a7III, 3x60sec; Iso
( ~ 6.3
27. December 2022
...for half an hour clear sky, first images!
Newton 900mm, f4,5, Sony a7III, 4x40sec; Iso
( ca 7,5-8.0 mag ),
= > light magnitude:
+3 or +4
visible nearby cities with the naked eye, in very dark areas the
seeing limit can reach up to mag
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
pale shiny oval)
All comet observations
from 2001 up to now ..