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Can A planet's mass can be determined by observing it transit a star?

Yes, a planet's mass can be determined by observing its transit across a star. By measuring the dip in the star's brightness during the transit, astronomers can calculate the size of the planet and its gravitational effect on the star, which provides information on the planet's mass.


You are observing a star about 100 light years away how old is the most recent information you can get aboutthis star?

The most recent information we can receive about the star would be from about 100 years ago, as it takes light around 100 years to travel a distance of 100 light years from the star to reach us on Earth.


How does an astronomer estimate the temperature of a star by observing it?

By the color.


What will you see if you observe a star?

When observing a star, you will see a bright point of light in the night sky.


What information does a star's spectrum offer about the star?

Spectroscopy shows what elements are present in the star, it's chemical composition. The different elements give off different energy signatures through radiation, which relate to the wavelength and therefore colour.


What is using one or more of your sense to gather information?

observing


Describe four methods for discovering extrasolar planets?

Discovering the essential Universe by Neil F. Comins fourth edition Extrasolar planets can be discovered by observing them indirectly by using microlensing, by observing the Doppler shift of the star due to the pull of the orbiting planet, by observing the periodic variation of the proper motion of a star, and by observing the periodic variation of the starlight due to the planet passing between that star and Earth, an event called a transit.


What is called using one or more of your senses to gather information?

observing


Information that scientists collect while observing matter directly is called?

research or background information


Information gathered from observing the growth of a fish over a month is called?

Data or information gathered from observing the growth of a fish over a month would generally be referred to as growth data or growth observations.


What is the location of a star when it twinkles a lot?

Outerspace ... the twinkling effect happens when observing the star(s) through earth's atmosphere. If you were in space, they would not twinkle.


What is the different between observing and inferring?

Observing is seeing for yourself what actually happened. Inferring is taking other information and trying to guess what actually happened.