Astronomy

(1) CRATERING When a meteorite hits one of the terrestrial planets it makes a crater with a diameter of about 20 times the diameter of the impactor (the book says x10 but x20 is more typical). Estimate the size of the impactor that made the following four craters: (1 pt.) (a) During the Apollo program the astronauts found lots of craters about 500 meters in diameter. When an impactor such as a meteorite hits the surface of terrestrialplanets, they leave excavations known as craters. The crate...

This paper (Exam) covers different Astronomy topic such as Size and Scale, Celestial Motions and History.

The prevailing model for the evolution of the Universe is the Big Bang theory.[34][35] The Big Bang model states that the earliest state of the Universe was extremely hot and dense and that it subsequently expanded. The model is based on general relativity and on simplifying assumptions such as homogeneity and isotropy of space

Constellations (and the moon) appear to move across the sky at night because: correct answers The Earth spins on its axis What is the path that the Sun, Moon, & planets follow through the constellations? correct answers The ecliptic What causes Earth's seasons? correct answers 23.5 degree tilt of Earth's rotational axis A total Lunar eclipse occurs correct answers During the full moon phase If we know the distance of an object from Earth, we can determine the objects size by measur...

Astronomy correct answers is the science that studies the composition, position, and movements of all objects in space. Astronomer correct answers a scientist who studies astronomy constellations correct answers a pattern of stars arranged as a mythical figure or animal asterism correct answers are parts of constellations. The big dipper is part of the constellation ursa major circumpolar constellation correct answers a constellation always in the night sky because it the North Pole ...

ASTRONOMY A Self-Teaching Guide Seventh Edition Dinah L. Moché, Ph.D. John Wiley & Sons, Inc. This book is printed on acid-free paper.• Copyright © 1978, 1981, 1987, 1993, 2000, 2004, 2009 by John Wiley & Sons, Inc. All rights reserved Published by John Wiley & Sons, Inc., Hoboken, New Jersey Published simultaneously in Canada. No part of this publication may be reproduced, stored in a retri...

Astronomy A Beginners Guide To The Universe 7th Edition By Chaisson 1) The simplest reflector telescope design is the prime focus reflector. Answer: TRUE Diff: 1 Section Ref.: 3

Astronomy A Beginners Guide To The Universe 7th Edition By Chaisson 1) The simplest reflector telescope design is the prime focus reflector. Answer: TRUE Diff: 1 Section Ref.: 3

This book is printed on acid-free paper.• Copyright © 1978, 1981, 1987, 1993, 2000, 2004, 2009 by John Wiley & Sons, Inc. All rights reserved Published by John Wiley & Sons, Inc., Hoboken, New Jersey Published simultaneously in Canada. No part of this publication may be reproduced, stored in a retrieval system or trans-mitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under Sections 107 or 108 of the 1976 U...

Which of the following defines density? a) weight of an object b) mass divided by volume c) size divided by weight d) mass times weight b) mass divided by volume Which of the following objects would never be encountered on the moon? a) Meteoroids b) Meteors c) Meteorites d) all of the above b) Meteors 00:27 01:13 The nucleus, or main solid body, of a comet has a typical size of a) A few meters b) A few kilometers c) A few hundred kilometers d) A few centim...