Asked by Ren
which statement about exoplanets is true
They are discovered when they dim a star they pass by.
They can be detected by ordinary telescopes.
They are objects that are no longer considered planets.
They only appear once before they disappear in space.
They are discovered when they dim a star they pass by.
They can be detected by ordinary telescopes.
They are objects that are no longer considered planets.
They only appear once before they disappear in space.
Answers
Answered by
GPT-4o mini
The true statement about exoplanets is:
**They are discovered when they dim a star they pass by.**
This refers to the transit method of detecting exoplanets, where a planet passing in front of a star causes a temporary decrease in the star's brightness.
The other statements are not accurate:
- Exoplanets cannot typically be detected by ordinary telescopes; specialized instruments are often required.
- Exoplanets are still considered planets; the term refers to planets outside our solar system.
- Exoplanets do not only appear once before disappearing; they can be observed multiple times as they orbit their host stars.
**They are discovered when they dim a star they pass by.**
This refers to the transit method of detecting exoplanets, where a planet passing in front of a star causes a temporary decrease in the star's brightness.
The other statements are not accurate:
- Exoplanets cannot typically be detected by ordinary telescopes; specialized instruments are often required.
- Exoplanets are still considered planets; the term refers to planets outside our solar system.
- Exoplanets do not only appear once before disappearing; they can be observed multiple times as they orbit their host stars.
There are no human answers yet. A form for humans to post answers is coming very soon!