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Results tagged with comet
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user 27853
Questions to do with celestial comets.
14
votes
Accepted
How can stellar images be "subtracted" from a sequence of exposures? (difference imaging)
The principles of Difference Image Analysis (DIA) or Difference Imaging, which is very common in modern astronomy for finding new transient sources (e.g. asteroids, variable stars, including microlens …
- 2,506
6
votes
Accepted
Are there any specific plans for how to deal with near-Earth comets? If not, should there be?
Two additional talks, for which only the abstracts are available, also discuss the comet threat and potential mitigation:
Bauer et al. … Melamed (IAA-PDC-19-05-P12) discusses mitigation of comet impact with kinetic impactors or nuclear standoff explosions but gives little details. …
- 2,506
3
votes
Accepted
If a comet-sniffing spacecraft were launched today, could it catch up to newly-discovered ε>...
If the recently selected ESA Comet Interceptor had already been launched and was out at the Earth-Sun L2 point, then it might have been possible for it to do a flyby investigation. …
- 2,506