Contact information

Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

Binocular comet ZTF - 4.2.2023 at 18.15 - 4.2.2023 at 20.00 Helsinki Observation number 111858

Visibility II / V

Markku Poutanen, Ursa (Helsinki)

Labor profit. Up until now, the clouds have won, but now as the evening darkened, it looked promising. But as darkness fell, didn't a thin layer of upper cloud gauze also begin to rise into the sky. An almost full moon illuminated the sky in competition with the city lights, and the transparency was not commendable anyway. Without Stellarium and the lucky chance that this particular evening the comet was close to Capella and that the fire had already started at dusk, the comet would have been missed tonight as well.

First, confirmation of the place with the harbor mile, and then with four hundred and fifty pictures. However, one must be satisfied with the end result: this comet has also been seen. In these conditions, you can hardly get better than this with standard camera optics. It doesn't look like a bad guy here, and there is no idea about the shape or size of the tail.

The first image is a somewhat cropped image taken with a 400 mm lens, the second is a 100 mm image from which I originally located the comet. Capella can be seen on the right side of the picture.

More similar observations
Additional information
  • Observation target
    • Comet
  • Visibility of the comet
    • Binocular comet
  • Name of the observation target
    • C/2022 E3 (ZTF)
  • Weather
    • Lähes tyyntä, -6C, pilvisyys 0-1/8, ohutta yläpilveä

Technical information

Canon R6, Canon RF 100-400 F5.6-8, ISO2000, tracking iOptron GEM28; DSS (100mm: 7x20s, 400mm: 25x20s), Affinity photo. In the pictures, north is approximately on the left.

Send a comment

Comments are checked and moderated before publication If you want to contact the observer directly about possibilities to use these images, use the Media -form.



characters left

By sending in this comment I confirm, that I've read and understood the the observation system's privacy policy.