LECTURE 3, AUGUST 31, 2010 ASTR 101, SECTION 3 INSTRUCTOR, JACK BRANDT 1ASTR 101-3, FALL 2010.

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Presentation transcript:

LECTURE 3, AUGUST 31, 2010 ASTR 101, SECTION 3 INSTRUCTOR, JACK BRANDT 1ASTR 101-3, FALL 2010

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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 20108

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

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

ASTR 101-3, FALL

ASTR 101-3, FALL

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