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@ Fraser Cain
2025-02-13 17:48:05
As we've seen with the recent flurry of interest in asteroid 2024 YR4, we need better and faster ways to accurately determine the distance to asteroids. Astronomers have needed multiple observatories over multiple nights to pin down an asteroid's orbit, but a new technique can drop that down to a single night from a single telescope. It uses the Earth's rotation, taking multiple images from the same telescope to create a parallax effect that gives 1-3% precision.
https://arxiv.org/abs/2502.07881
https://m.universetoday.com/system/media_attachments/files/113/997/832/850/875/136/original/2bb7a90c46bfbee3.webp