Rewind
Another name for Algol, the star that light fades and grows.
What is the Demon Star?
This and reflectors are two types of telescopes.
What are refractors?
The word "corona" means this.
What is crown?
When one celestial body passes closely by another
What is conjunction?
These orbit the earth in about 90 minutes.
What are satellites?
Solstice meaning
What is sun stop?
This is the diameter of the primary lens or primary mirror that determines the overall ability of the telescope.
What is aperture?
When one celestial object passes directly in front of another, blocking the background object from sight.
What is occultation?
Caused by the reflection and refraction of sunlight off of ice crystals in thin, high cirrus clouds.
What is a solar halo?
This iridium _____ is the temporary brightening of a satellite associated with the company Iridium Communications Inc.
What is flare?
The darker and lighter shadows of the earth.
What are the umbra and penumbra?
This type of aberration is when bright objects you view through a refractor are surrounded by a little purple halo.
What is chromatic?
Approximately every 33 years this produces a meteor shower.
What are Leonids?
Rainbows are colorful because the water droplets split the sunlight into this.
What are wavelengths?
Telescope mounts come in these two varieties.
What are equatorial and horizon?
This helps you see at night without impacting your dark adapted vision.
What is a red light or an eye patch?
Binoculars or a small telescope will allow you to observe the moon, bright stars, open star clusters, some bright comets, and this galaxy.
What is Andromeda?
Only meteor shower known to be associated with an asteroid rather than a comet.
What are the Geminids?
Rare occurrence where the sky appears to be raining meteors.
What is a meteor storm?
Motor that slowly rotates the telescope in the opposite direction that Earth rotates.
What is a clock-drive?
The brightest star visible in Earth's nighttime sky.
What is Sirius?
Instead of a primary lens to bring light to focus reflectors use a curved this.
What is mirror?
Refers to bright streak in the sky.
Rock that causes streak.
Rock that hits earth's surface.
What are meteor, meteoroid, and meteorite?
The point where meteors appear to move away from during a meteor shower.
What is radiant?
This adds a laser-produced artificial spot, concentric circles, or crosshairs that indicate exactly where the telescope is pointed.
What is a telrad?