AST101H1 Chapter 2: Constellations, the Seasons, the Moon - Chapter 2 (Sept 25th).docx

58 views5 pages
elizabethkandelaki and 39782 others unlocked
AST101H1 Full Course Notes
23
AST101H1 Full Course Notes
Verified Note
23 documents

Document Summary

Chapter 2 discovering the universe for yourself. Constellation = a region of the stellar sky with well-defined borders; 88 official constellations (chosen in 1928 by members of the iau and named for familiar concepts in the western world) cover the celestial sphere. Every point in the sky belongs to some constellation or another. Celestial sphere = the imaginary sphere on which objects in the sky appear to reside when observed from earth. *for reference, we identify four special points and circles on the celestial sphere. North celestial pole = the point on the celestial sphere directly above earth"s north pole. South celestial pole = the point on the celestial sphere directly above earth"s south pole. Celestial equator = the extension of earth"s equator onto the celestial sphere. Ecliptic = the sun"s apparent annual path among the constellations. 23. 5 angle because that is the tilt of earth"s axis.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents