Main sequence stars - Study guides, Class notes & Summaries

Real Asvab Test 121 Questions with Verified Answers A square has how many sides? - CORRECT ANSWER 4 How much is 2 plus 2? - CORRECT ANSWER 4 A rose is a what? - CORRECT ANSWER A flower What is the best explanation of how a smooth round stone became smooth? - CORRECT ANSWER It was in a stream for a long time If you place bean seeds between moist paper towels and watch the stem leaves appear you will see a demonstration of? - CORRECT ANSWER germination Any astronomical body that ...

A high-luminosity star... A. is always at a larger distance than a low-luminosity star B. emits more light than a low-luminosity star C. is always redder than a star with a lower luminosity D. is at a lower temperature than a low-luminosity star E. is always at a smaller distance than a low-luminosity star Answer - B If a red giant appears the same brightness as a red main sequence star, which one is further away? A. the red giant B. we cannot tell C. it depends on the phase o...

 -1.5 magnitude Sirius appears 25x brighter than 2 magnitude Polaris.  “All neutron stars are pulsars, but not all pulsars are neutron stars” FALSE  “Spectroscopic Binary” is the term given to a pair of stars that we can determine are orbiting each other only by measuring their periodic Doppler shifts.  A 6.8 solar mass neutron star does NOT exist.  A loop of gas and charged particles following the magnetic field lines between sunspot’s poles is a Prominence/...

This exam is entirely multiple choice or true/false. A=T, B=F TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) The photosphere is about 100 times the diameter of the Earth, and large sunspots are larger than our whole planet. 1) 2) Granulation is the most obvious proof of solar convective energy transport. 2) 3) The solar corona is much cooler than the Sun's surface, hence we must wait for a total solar eclipse to glimpse it with the naked eye. 3)...

Astro 7N Exam 2 Questions and Answers | Verified Updated| Latest 2024. 1. A high-luminosity star ... A: is always at a larger distance than a low-luminosity star B: emits more light than a low-luminosity star C: is always redder than a star with a lower luminosity D: is at a lower temperature than a low-luminosity star E: is always at a smaller distance than a low-luminosity star 2. If a red giant appears the same brightness as a red main sequence star, which one is farther away? A:...

Astronomy Final Exam Study Guide Questions and Answers 100% Solved All main sequence stars are converting hydrogen into _______________ in their cores. ️️helium The main sequence phase is the ________________ phase of a star's lifetime. ️️longest What percentage of stars are on the main sequence? ️️90% The hot blue O and B type main sequence stars have __________. ️️short lifetimes The cool red K and M type main sequence stars have _____________. ️️long lifetimes Th...

Astro 7N Exam 2 Questions and Answers | Verified Updated| Latest 2024. 1. A high-luminosity star ... A: is always at a larger distance than a low-luminosity star B: emits more light than a low-luminosity star C: is always redder than a star with a lower luminosity D: is at a lower temperature than a low-luminosity star E: is always at a smaller distance than a low-luminosity star 2. If a red giant appears the same brightness as a red main sequence star, which one is farther away? A:...

Astro 7N Exam 2 Questions and Answers | Verified Updated| Latest 2024. 1. A high-luminosity star ... A: is always at a larger distance than a low-luminosity star B: emits more light than a low-luminosity star C: is always redder than a star with a lower luminosity D: is at a lower temperature than a low-luminosity star E: is always at a smaller distance than a low-luminosity star 2. If a red giant appears the same brightness as a red main sequence star, which one is farther away? A:...

A large luminosity star - Emits more light than a low luminosity star If a red giant appears the same brightness as a red main sequence star, which one is further away? - The red giant The heaviest nuclei of all are formed - During a supernova explosion Hydrogen-2 + proton = ? - Hydrogen-2 + proton = Helium-3 Why does the main sequence part of a star's life end? - The hydrogen in the core is exhausted Many of the brightest 100 stars viewed from Earth are not on the main sequence (even tho...

Luminosity - The total amount of power a star emits into space that's measured in watts. Apparent Brightness - Amount of starlight that actually reaches Earth HR Diagram - is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature and evolutionary stage. Stars in the stable phase of hydrogen burning lie along the Main Sequence according to their mass. OBAFGKM - Oh Be A Fine Girl Kiss Me Main Sequence - the vast majorit...

ASTRONOMY EXAM FINAL!!!! QUESTIONS AND ANSWERS 100% SOLVED What is the mass that divides low mass stars from high mass stars? (what is the criteria for a low mass star or a high mass star in terms of M) ️️M < 8M = low mass M > 8M = high mass What is the evolutionary endpoint for most low mass stars? ️️White Dwarf What is the evolutionary endpoint for most high mass stars? ️️Neutron Star What is happening in the core of a star while it is on the main sequence? ️️...