Fichas
The Moon
Fichas del conjunto (30)
- 1Phasesthe portion of visible illuminated hemisphere as seen from Earth
- 2The Moon's sidereal orbit means that...we see the same side of the moon from Earth
- 3Waxing CrescentThe Moon appears to be partly but less than one-half illuminated by direct sunlight. The fraction of the Moon's disk that is visibly illuminated is increasing.
- 4The New Moon occurs when...the Sun and Moon are relatively close in the sky.
- 5The Moon's AgeThe number of days counted from the start of the New Moon
- 6Two ways to measure lunar months- sidereal
- synodic - 7Sidereal Monththe amount of time it takes the Moon to return to the same position in the sky with respect to the stars and is 27.3 days long.
- 8Synodic Monththe time between similar lunar phases (e.g., between two full moons) and is 29.5 days long.
- this means there's around a week between each one of the four main phases.
- the synodic month depends not only on the relative positions of the Moon and Earth but also on the relative position of the Sun - 9"Water Like" features on the moon- Sinus (bays)
- Paludes (marshes)
- Oceanus (ocean) - 10Highlands- consist of mountains and high plains
- the light-colored areas on the Moon
- made mostly of anorthositic rock and breccia (rock fragments fused together by the intense heat of meteorite bombardment) - 11Rilles come in two varieties:- sinuous
- graben - 12Graben (straight) Rilleswhere sections of the crust have dropped to lower levels due to faults in the crust
- 13The Prime Meridian- arbitrary
- splits the Near Side into equal eastern and western halves - 14The Moon's sidereal orbit around Earth and its rotation period are bothsynchronized at 27.3 days
- 15The eight distinct phases or stages of the moon are- New Moon
- Waxing Crescent
- First Quarter
- Waxing Gibbose
- Full Moon
- Waning Gibbose
- Third Quarter (Last Quarter)
- Waning Crescent - 16New MoonThe moon's un-illuminated side is facing Earth. The moon is not visible.
- 17First QuarterOne-half of the Moon appears to be illuminated by direct sunlight. The fraction of the Moon's disk that is visibly illuminated is increasing.
- 18Waxing GibbousThe Moon appears to be more than one-half but not fully illuminated by direct sunlight. The fraction of the Moon's disk that is visibly illuminated is increasing.
- 19Full MoonThe Moon's illuminated side is facing the Earth. The Moon appears to be completely illuminated by direct sunlight.
- 20Waning GibbousThe Moon appears to be more than one-half but not fully illuminated by direct sunlight. The fraction of the Moon's disk that is visibly illuminated is decreasing.
- 21Third Quarter (Last Quarter)One-half of the Moon appears to be illuminated by direct sunlight. The fraction of the Moon's disk that is visibly illuminated is decreasing.
- 22Waning CrescentThe Moon appears to be partly but less than one-half illuminated by direct sunlight. The fraction of the Moon's disk that is visibly illuminated is decreasing.
- 23The Full Moon occurs when...the Sun and Moon are at nearly opposite positions in the sky, which is why a Full Moon rises about the time of sunset and sets about the time of sunrise (for most places on Earth).
- 24The First and Third Quarters occur when...the Sun and Moon are about 90 degrees apart in the sky.
- 25Synodic month29.5 days
- 26A Blue Moonhappens when When there are two Full Moons in a month (which occurs about every 2.7 years)
- 27Maria (Lowlands)Caused by lunar volcanism that broke through and filled the low-lying impact basins with dark, basaltic lava
- 28Sinuous Rillesnarrow, winding channels cut by flowing lava. Some of these channels were formed from lava tubes whose roofs have since collapsed.
- 29Lunar Latitudethe angular distance north or south of the lunar equator.
- 30Lunar Longitudethe angle east or west of the lunar prime meridian.
Información
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- Astronomy Fichas sobre The Moon, creado por dlr_ jackie el 08/07/2022.
- Creado por
- dlr_ jackie
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