Astronomy – Tutorial #5.
parallax of a star
apparent magnitude: and distance
absolute magnitude: distance
answer: less than 5 because of the inverse scale
note: intensity would be
What is not produced in a p-p chain reaction?
alpha particles ( ) are not produced in a p-p chain reaction
What is produced in a p-p chain reaction?
deuterium ( ), positrons ( ), protons, and neutrinos If temperature is two times higher and if pressure is two times lower, how does pressure
pressure is increased by a factor of four
What would make parallax easier to measure?
if the orbit of Earth was larger
larger angles are easier to measure
stars moving faster towards us
What would make parallax harder to measure?
if a star was further away
What would make no difference regarding the difficulty of measuring parallax?
Earth moving faster along its orbit
What is absolute visual magnitude?
(possibly a typo)
the visual portion of luminosity of a star from 10 pc