Astronomy Exam 1
The celestial sphere is - answerAn imaginary sphere around earth, so we can use
define what part of the sky we are studying.
What coordinates do we use to define a location on the celestial sphere? - answerRight
ascension and declination.
For us in the North hemisphere, the sun's altitude in mid day is highest on -
answerSummer Solstice
The starting line of longitude goes through - answerPrime Meridian in Greenwich
England
Longitude is measured towards East and West. What is the limit of longitude? -
answerAt 180 degrees through the International Data Line
The starting line of latitude goes through - answerEquator
Latitude measures North and South. The limit of latitude is - answer90 degrees at the
North and South Pole
To determine GMT or Universal Time you would add 8 hours in the winter and 7 hours
in the summer to your local time. Why is there an hour difference between summer and
winter? - answerBecause we use daylight saving time in California.
It is 1AM on January 1st 2023 in Los Angeles. What is the GMT or Universal time? -
answer9 o'clock on January 1st 2023.
Altitude is measured from - answerHorizon, Measured upward.
Azimuth is measured from - answerNorth
Declination is measured from - answerCelestial Equator
Declination is equivalent to Earth's - answerLatitude
Right ascension is measured from - answerCelestial Prime Meridian (vernal equinox)
Telescope A's objective lens diameter is 8 inches. Telescope B's diameter is 4 inches.
How many times the light gathering power the telescope A has compared to the
telescope B. - answer4
The celestial sphere is - answerAn imaginary sphere around earth, so we can use
define what part of the sky we are studying.
What coordinates do we use to define a location on the celestial sphere? - answerRight
ascension and declination.
For us in the North hemisphere, the sun's altitude in mid day is highest on -
answerSummer Solstice
The starting line of longitude goes through - answerPrime Meridian in Greenwich
England
Longitude is measured towards East and West. What is the limit of longitude? -
answerAt 180 degrees through the International Data Line
The starting line of latitude goes through - answerEquator
Latitude measures North and South. The limit of latitude is - answer90 degrees at the
North and South Pole
To determine GMT or Universal Time you would add 8 hours in the winter and 7 hours
in the summer to your local time. Why is there an hour difference between summer and
winter? - answerBecause we use daylight saving time in California.
It is 1AM on January 1st 2023 in Los Angeles. What is the GMT or Universal time? -
answer9 o'clock on January 1st 2023.
Altitude is measured from - answerHorizon, Measured upward.
Azimuth is measured from - answerNorth
Declination is measured from - answerCelestial Equator
Declination is equivalent to Earth's - answerLatitude
Right ascension is measured from - answerCelestial Prime Meridian (vernal equinox)
Telescope A's objective lens diameter is 8 inches. Telescope B's diameter is 4 inches.
How many times the light gathering power the telescope A has compared to the
telescope B. - answer4
