Midterm Review

Midterm Review - Midterm Review 1 celestial sphere a Right...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Midterm Review 1. celestial sphere a. Right Ascension-longitude measured in hours east of the spring equinox instead of degrees west or east b. Declination-latitude measured positive or negative instead of north or south c. Stars are parallel to horizon at celestial poles d. Stars are perpendicular to horizon at equator e. Seasons are caused by tilt of Earth on its axis i. Summer solstice: June 21 ii. Winter solstice: December 21 iii. Spring equinox: March 21 iv. Fall equinox: September 22 f. Noonday sun-south in NYC g. Procession of equinox-Earth wobbles on axis h. Ecliptic-Earth’s orbit around the sun i. 12 constellations make up the zodiac, or the constellations through which the ecliptic passes on the celestial sphere i. Circumpolar stars never rise or set because they make daily counterclockwise circles around the celestial pole. Therefore, a circumpolar star will remain perpetually above the horizon. i. It changes with latitude because it shifts position of zenith and horizon, which therefore might make the circumpolar star if it is not visible from a different celestial hemisphere. 2.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 2

Midterm Review - Midterm Review 1 celestial sphere a Right...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online