Astr 102 exam Study guides, Class notes & Summaries

Rank the following from earliest to latest: protostars, dark globule, star cluster, supernova - Dark globule, protostars, supernova, star cluster Which type of light will be most affected by interstellar extinction? - Ultraviolet Globular clusters formed _______________ the gas from which our galaxy formed had time to collapse into a disk. - before The first stage of stellar evolution is the ___________________ phase - protostellar Time moves slower the _____________ you're moving - faste...

ASTR 102 Midterm Exam Questions | 100% Correct Answers | Verified | Latest 2024 Version

Life expectancy of a 10Msun star - Answer 10 million years: life expectancy of a _______Msun star life expectancy of a .1 Msun star - Answer 100 billion years: life expectancy of a _______Msun star Coolest stars: ___________ K - Answer 3,000 K Hottest stars: ___________ K - Answer 50,000 K Least luminous stars: 10^_____ Lsun - Answer 10^-4 Lsun

ASTR 102 Final Exam Questions Riverside Correct Solutions Current Update order of red giant's life - Answer -Red Giant → Planetary Nebula → White Dwarf → Black Dwarf or Red Giant → Type II Supernova → Neutron Star or Red Giant → Type II Supernova → Black Hol The eventual fate of our Sun is to - Answer -become a steadily cooling white dwarf. Our Sun will not become a nova because this only happens to stars - Answer -with a binary companion. Black holes are formed ...

Which of the following statements about light focusing is not true? A) In a healthy eye, light is focused on the retina. B) Film should be placed at the focal plane in a camera. C) If you try to look at an image that is not formed at the focal plane, it will be blurry. D) The focal plane of a reflecting telescope is always located within a few inches of the primary mirror. - Answer D) The focal plane of a reflecting telescope is always located within a few inches of the primary mirror

ASTR 102 Midterm Exam Questions | 100% Correct Answers | Verified | Latest 2024 Version The apparent motion of a foreground object relative to a distant background as the observers position changes? - Parallax When measuring parallax the distance between two observation points is called? - Baseline If Earth rotated twice as fast as it currently does, but its motion around the Sun stayed the same, then? A. The night would be twice as long B. The night would be half as long C. The...

The apparent motion of a foreground object relative to a distant background as the observers position changes? - Parallax When measuring parallax the distance between two observation points is called? - Baseline If Earth rotated twice as fast as it currently does, but its motion around the Sun stayed the same, then? A. The night would be twice as long B. The night would be half as long C. The year would be half as long D. The length of the day would be unchanged. - B. A long, thin cloud ...

The celestial sphere - An imaginary sphere surrounding Earth to which the stars are attached. Ancient astronomers believed the sky was a great sphere surrounding Earth with the stars stuck on the inside like thumbtacks. Modern astronomers know that the stars are scattered through space at different distances, but it is still convenient to think of the sky as a great starry sphere enclosing Earth. celestial sphere - the eastward rotation of Earth causes the Sun, Moon, planets, and stars to m...

What is the period of the solar magnetic cycle? a)27 days b)1 year c)11 years d)22 years e)220 years - 2: What is the period of the solar magnetic cycle? a)27 days b)1 year