Recently discovered, the Comet 2022 E3 (ZTF) is now easily visible with the use of a small telescope with a visual estimated magnitude of 10.24. It can be located in the Corona Borealis constellation.

This comet was discovered by astronomers using the wide-field survey camera at the Zwicky Transient Facility last March 2022.

This telescopic image was captured on the early morning of the 28th of December 2022, at 05:56 UTC, from my backyard observatory in Prades (Tarragona). It’s the first image of my new backyard observatory.

The comet’s perihelion will be reached on January the 12th, and the perigee, its closest approach to Earth, on February the 1st.

The Comet could be visible to the naked eye by the end of January according to several estimations.

The full image covers an area of 2º06′ x 1º35′ at a resolution of 2.59″/pixel.

Thanks for your time on this website.

Image Details

RGB: (10, 10, 10) x 30″ (15′)


Calibrated with darks, flats, dark-flats.


Total exposure: 15′


Average Moon phase at 29% (not visible)

Image resolution: 2.59”/pixel

FOV (full image): 2º06′ x 1º35′


FRA300 + ASI2600MM + LRGB ZWO filters + ZWO EFW 7 pos + ZWO EAF

ZWO AM5 mount


Guiding with ASI120MM and ZWO Mini Guide Scope


ASI Air software, APP, PIX, LR, PS.

Aleix Roig, December 2022
Prades (Tarragona, Catalonia – Spain).

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