LECTURE 3, AUGUST 31, 2010 ASTR 101, SECTION 3 INSTRUCTOR, JACK BRANDT [email protected] 1ASTR 101-3,...
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LECTURE 3, AUGUST 31, 2010 ASTR 101, SECTION 3 INSTRUCTOR, JACK BRANDT [email protected] 1 ASTR 101-3, FALL 2010
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Transcript of LECTURE 3, AUGUST 31, 2010 ASTR 101, SECTION 3 INSTRUCTOR, JACK BRANDT [email protected] 1ASTR 101-3,...
ASTR 101-3, FALL 2010 1
LECTURE 3, AUGUST 31, 2010
ASTR 101, SECTION 3INSTRUCTOR, JACK BRANDT
ASTR 101-3, FALL 2010 2
ASTR 101-3, FALL 2010 3
ASTR 101-3, FALL 2010 4
ASTR 101-3, FALL 2010 5
The angle of parallax increases as
Question 10
a) distances to stars increase.b) the baseline gets larger. c) the baseline gets smaller.d) the Earth moves faster in its orbit.
a) distances to stars increase.b) the baseline gets larger. c) the baseline gets smaller.d) the Earth moves faster in its orbit.
The angle of parallax increases as
Question 10
The greater the distance between two observation points (the baseline), the larger the
angle of parallax.
ASTR 101-3, FALL 2010 8
a) the same phase in 24 hours. b) different phases in 24 hours.c) a lunar eclipse once a month.d) different sides of the Moon.
Considering the Moon’s phases, everyone on Earth sees
Question 12
a) the same phase in 24 hours. b) different phases in 24 hours.c) a lunar eclipse once a month.d) different sides of the Moon.
Considering the Moon’s phases, everyone on Earth sees
Question 12
The Moon goes through its cycle of phases in about 30
days; the Earth rotates once in only 24 hours.
So everyone has a chance to see the same phase!
ASTR 101-3, FALL 2010 11
a) during the new moon phase.b) when the Sun blocks the Moon.c) during the full moon phase.d) always around the summer solstice.
A total lunar eclipse occurs
Question 7
a) during the new moon phase.b) when the Sun blocks the Moon.c) during the full moon phase.d) always around the summer solstice.
A total lunar eclipse occurs
Question 7
ASTR 101-3, FALL 2010 14
ASTR 101-3, FALL 2010 15
ASTR 101-3, FALL 2010 16
a) every month at new moon.b) every week at the quarter phases.c) every month at full moon.d) about every six months at new moon.e) every year at new moon.
A solar eclipse happens
Question 9
a) every month at new moon.b) every week at the quarter phases.c) every month at full moon.d) about every six months at new moon.e) every year at new moon.
Question 9
A solar eclipse happens
ASTR 101-3, FALL 2010 19
