Section 1a
What is a device that splits light into a spectrum for analysis?
spectroscope
What is the color sequence of visible light arranged from lowest to highest frequency called?
visible spectrum
What circle on the celestial sphere runs directly overhead and connects the celestial poles?
meridian
From which calendar do the English month names come?
Julian
What unit of time is based on the period Earth takes to orbit the sun once?
solar year
interferometry
What is formed by ordering all types of electromagnetic waves by increasing frequency and decreasing wavelength?
What is the path on the celestial sphere that the sun follows in a year?
ecliptic
In which climate zone does every location have at least one day a year when the sun is directly overhead?
tropics
What term refers to the earth's slow "wobble" on its axis that causes the pole star to change?
precession
What instrument increases and object's brightness by gathering more light than the unaided eye?
telescope
What instrument detects low-frequency waves to observe areas in space whose visible light is blocked from reaching Earth?
radio telescope
What is the replacement of A.D. that has become popular among those who deny the deity of Jesus?
C.E.
In which climate zone does the sun rise and set every day but is never straight overhead?
temperate zone
What is the mean solar time at the Prime Meridian called?
UTC
What is another name for an objective mirror?
primary mirror
A telescope that uses a large, curved mirror as the objective is a.....
reflecting telescope
What is the point on the celestial sphere directly above an observer?
zenith
What 2 regions of the earth experience at least one day of darkness and one day of daylight?
frigid zones
How is the lunar month 29.5 days defined?
What visible-light telescope was launched into space, enabling seeing without atmospheric distortion?
Hubble Space Telescope
When white light shines through a gas and then passes through a prism, the broad spectrum of color will show narrow, dark lines called...
absorption lines
What is the general term for advancing the clocks by one hour in summer?
summer time
What type of time is based on the stars?
sidereal time
What calendar uses the lunar year with an extra month in certain years to stay in step with the seasons?
Jewish