Comets Activity

Missions

Find up-to-the-minute visibilities and deeplinks for comet targets on the Comet Ephemeris page.

MISSION 12P

Comet 12P/Pons-Brooks is a Halley-type comet, and only reaches perihelion once every 71 years. It will reach perihelion on April 21, 2024 and is predicted to be visible to the naked eye around this time. This will line up well with the Solar eclipse, which occurs on April 8, 2024. The comet may be bright enough to observe during the eclipse! 12P has experienced many outbursts since its first large outburst in June 2023. It is important to monitor this comet for more outbursts as it gets closer to the Sun and heats up!
To observe your target:
Follow the HowTo Guide for A. The target is in the Unistellar app’s database.
In the Recording field be sure the following information is entered:
Record duration : 20min
Exposure time : 3971ms
Gain : 25db
Take at least 2 observation.

MISSION A3

Comet C/2023 A3 (Tsuchinshan–ATLAS) will reach perihelion on September 27, 2024 and will make its close approach to the Earth on October 12, 2024. Around this time, the comet is expected to be seen easily by the naked eye. Observing this comet now will help to determine just how bright the comet will be at its maximum.
To observe your target:
Follow the HowTo Guide for A. The target is in the Unistellar app’s database.
In the Recording field be sure the following information is entered:
Record duration : 20min
Exposure time : 3971ms
Gain : 25db
Take at least 2 observations.

MISSION 29P

29P/Schwassmann-Wachmann 1 is a centaur/comet transition object. 29P has experienced many outbursts in its lifetime. By observing this object, we may be able to catch an outbursting event and better understand the mechanisms that cause these sudden increases in brightness. The comet is currently faint, even in recent outbursts, but it is important to monitor occasionally in case the comet undergoes a bright outburst.

To observe your target:
Follow the HowTo Guide for A. The target is in the Unistellar app’s database.
In the Recording field be sure the following information is entered:
Record duration : 20min
Exposure time : 3971ms
Gain : 25db
Take at least 2 observations.

MISSION Hartley 2

In 2010, the Deep Impact (EPOXI) spacecraft visited 103P/Hartley (Hartley 2), finding a small, peanut-shaped comet. Hartley 2 is a short period comet, reaching perihelion every six and a half years. This apparition, Hartley 2 reached perihelion on October 12, 2023, and reached its closest approach to Earth on September 26, 2023. Hartley 2 is known for being hyperactive, meaning it releases more water than expected based on its orbit and size. Help Unistellar monitor the activity of this comet!

To observe your target:
Follow the HowTo Guide for A. The target is in the Unistellar app’s database.
In the Recording field be sure the following information is entered:
Record duration : 20min
Exposure time : 3971ms
Gain : 25db
Take at least 2 observations.

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If you have any questions please contact us at [email protected].