Comet 3I/ATLAS is once again visible after a brief disappearance during its close approach to the sun on October 30. Discovered on July 1, 2023, it is the third interstellar object identified entering our solar system. The comet is believed to have originated from a distant star, leading scientists to closely analyze its unique characteristics.
Viewing Comet 3I/ATLAS in November’s Predawn Sky
The comet can now be observed using small telescopes. Qicheng Zhang, a postdoctoral fellow at Lowell Observatory in Arizona, successfully imaged 3I/ATLAS on November 1. Using a 6-inch (152-mm) Ritchey–Chrétien reflector, he captured the comet’s likeness amid thin clouds during morning twilight.
How to Locate 3I/ATLAS
To spot the interstellar comet, look towards the eastern horizon in the constellation Virgo in the early hours before dawn. Venus will be visible below the comet, which is moving away from the sun. Here are the key details for viewing:
- Date of visibility: Early November 2023
- Location: Constellation Virgo, eastern horizon
- Best time: Just before dawn
- Visibility: Requires a telescope or camera for observation
The Comet’s Characteristics
Currently, 3I/ATLAS appears as a fuzzy blob among nearby stars. Despite this, it is expected to become more prominent in the coming weeks. However, the visibility may fluctuate as the comet moves further from the sun, leading to less heat and brightness.
Zhang notes that if the comet fades quickly, it may reach its peak visibility in one to two weeks. Observers are advised to use telescopes or cameras capable of long exposures for the best chance of capturing images of this cosmic wanderer.
Final Observations
The unpredictability of comets adds to the excitement of observing 3I/ATLAS. As it continues its escape trajectory from the solar system, scientists and amateur astronomers alike are encouraged to take the opportunity to view or photograph this rare visitor before it disappears.
