27.3 |
The moon's orbit around the earth is __ days |
phases |
We see different ___ of the moon depending on which part of it the sun illuminates |
29.5 |
The phases of the moon are a ____ day cycle |
waxing |
Moon gets fuller during the ____ phase |
waning |
Moon gets less full during the ____ phase |
third quarter |
A moon with half it's face dark and half bright is in the ____ |
once |
The moon rotates ___ with each orbit, meaning only one side is visible from earth |
full |
If the Moon is setting at 6 A.M., the phase of the Moon must be |
third quarter |
If the Moon is rising at midnight, the phase of the Moon must be |
midnight |
At approximately what time would a full Moon be on your meridian? |
noon |
At approximately what time would a first quarter Moon rise? |
waning crescent |
If the Moon rises around 3 A.M., its phase must be |
east |
In which direction does a quarter Moon rise? |
ashen light |
sunlight reflected by Earth that illuminates the "dark" portion of the Moon. |
false |
At midnight it is sometimes possible to observe the crescent Moon on the meridian. |
false |
It is possible to see the third-quarter Moon near the western horizon at sunrise. |
false |
It is possible to see the full Moon rising just before sunrise. |
false |
It is possible to view the Moon in first-quarter phase the day after a total lunar eclipse. |
eclipse |
When either the earth or moon passes through the other's shadow |
total lunar eclipse |
Moon passes entirely through the umbra. Moon appears obscured/backlit by sun |
partial lunar eclipse |
Part of the moon passes through the umbra. Part of the moon is obscured |
penumbral lunar eclipse |
Moon passes through the penumbra. Moon appears dimmer |
full moon |
Lunar eclipses can occur only at a ____ |
new moon |
Solar eclipses can occur only at a ____ |
2 |
How many eclipse seasons are there every year? |
nodes |
Points where moon's orbit crosses the ecliptic plane |
lunar eclipse |
Occurs when moon passes through Earth's shadow |
solar eclipse |
Occurs during new moon when moon's shadow falls on part of earth |
5 |
The moon's orbit is titled by about ___ degrees to the ecliptic plane. Meaning during most of it's orbit the moon is above or below the ecliptic plane. Only crosses through twice a month, and this must align with a new or full moon for an eclipse |
173 |
About _ days pass between one eclipse season and another |
Annular eclipse |
Occur when the moon is farther from earth |
umbra |
central region of moon's shadow. place to see a total solar eclipse. place for a total lunar eclipse to occur |
penumbra |
larger surrounding region of moon's shadow. place to see a partial solar eclipse. place for a partial lunar eclipse to occur |