![skywil8981](/avatars/33450.jpg)
skywil8981
16.06.2020 •
Geography
Based on studies of planetary systems around other stars, which of the following statements are currently believed to be true about how common or rare it is for stars to have planets in orbit around them?A) Planets in general are believed to exist around less than half of all stars.B) Giant planets like Jupiter are extremely common, but terrestrial ("Earthlike") planets are extremely rare.C) Planets are believed to exist around most, if not all stars, and terrestrial ("Earthlike") planets are not especially rare.D) Planets around other stars are too hard to detect with current technology, and so we are very uncertain how common or rare it is for stars to have planets in orbit around them.
Solved
Show answers
More tips
- H Health and Medicine Simple and Effective: How to Get Rid of Cracked Heels...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
- A Art and Culture When Will Eurovision 2011 Take Place?...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
- F Family and Home Why Having Pets at Home is Good for Your Health...
- H Health and Medicine How to perform artificial respiration?...
- H Health and Medicine 10 Tips for Avoiding Vitamin Deficiency...
- F Food and Cooking How to Properly Cook Buckwheat?...
Answers on questions: Geography
- G Geography Which object in space emits light because it releases energy produced by nuclear fusion ?...
- G Geography What form of heat transfer is occurring as a toaster coil begins to glow? a. radiation b. convection c. conduction d. thermal equilibrium...
- S Social Studies In addition to federal income tax, many people also pay...
- H Health If you fear you have been abusive to a partner, what can you do? a) end all relationships for at least a year b) accept that people can t change c) be patient with yourself...
- M Mathematics Subtract. –84 – 55 a. –29 b. –139 c. 29 d. 139...
- H History During world war 1 the congress passed the sedition act in 1918. why did many americans consider this act to be a violation if civil rights? a) the act compelled us citizens...
- S Social Studies Society allocates its scarce resources to various jobs. these scarce resources include a. people. b. machines. c. land. d. all of the above are correct....
- S Spanish ¿compraste aquel traje marrón?...
- B Business Listed here are the total costs associated with the 2017 production of 1,000 drum sets manufactured by truebeat. the drum sets sell for $469 each. costs1. plastic for casing—$16,0002....
- M Mathematics Calculate the area of the circle. round your answer to the nearest hundredth....
Ответ:
D) Planets around other stars are too hard to detect with current technology, and so we are very uncertain how common or rare it is for stars to have planets in orbit around them.
Explanation:
The current methods involved in ascertaining if planets are orbiting a star are wobbles and shadows.
With Wobbles, planets are found by how much gravitational pull they exert on the star.
With Shadows, the telescopes look for a reduction in the light of a star based on if a planet passed. The logic is that the bigger the planet, the bigger the reduction. There are two main problems with this though,
1. Some planets take years to go around their sun so the telescope will have to observe for quite a period of time and,
2. Some stars like our sun are so bright that a reduction caused by a planet going passed it is too miniscule sometimes to be detected.
The general consensus therefore is that we don't know if Earths or other planets orbiting suns like ours are rare or if the technology we have currently just isn't advanced enough to see them.
Ответ:
Sumo Wrestling
Explanation: