The comet C/2022 E3 (ZTF) is approaching Earth and changing its appearance.

This telescopic image of the Comet 2022 E3 (ZTF) was captured on the early morning of the 21st of January 2023, at 05:14 UTC, from my backyard observatory in Prades (Tarragona, Spain).

Recently discovered, the Comet 2022 E3 (ZTF) is now detectable with the unaided eye under truly dark skies, and it shows some details with the use of binoculars with a visual estimated magnitude of 6.0 (Jan.26). It can be located in the Draco constellation.

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

The full image covers an area of 1º26′ x 1º44′ at a resolution of 2.59″/pixel.

Thanks for your time on this website.

Image Details

L: 10×30″ (5′)

RGB: (10, 10, 10) x 30″ (15′)

Calibrated with darks, flats, dark-flats.


Total exposure: 20′


Average Moon phase at 1%

Image resolution: 2.59”/pixel

FOV: 1º26′ x 1º44′


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, BlurXt, NoseXt, PS.

Aleix Roig, 21st of January 2023.
Prades (Tarragona, Catalonia – Spain).

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