This planet is a small, incredibly hot world with a weaker version of Earth's magnetic field throughout the entire planet.
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Venus
This planet has a sweltering climate. It is hotter than Mercury, despite being farther from the Sun.
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Greenhouse Effect
The process by which atmospheric gases raise the temperature by absorbing outward-flowing heat.
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Mars
This planet is too chilly for life to exist
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Mercury
It has many craters like the Moon, but it also has a molten iron core that creates a magnetic field, just like Earth.
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Venus
This planet is considered as Earth’s evil twin.
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Mars
This planet is the miniature Earth that dried up and cooled.
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Morning Star
A bright planet appearing in the east before dawn.
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Evening Star
A bright planet appearing in the west after sunset.
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Elongation
It is the angular separation between a planet and the Sun, as visible from Earth.
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Greatest western or eastern elongation
These happen when a planet is at its farthest possible distance from the Sun during a specific apparition.
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Apparition
A period of time when the planet is visible from Earth on successive nights.
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Opposition
It occurs when a planet is on the opposite side of Earth from the Sun.
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Conjunction
It occurs when two solar system objects are near each other in the sky, such as when the Moon passes near Venus as we see them.
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Ascension
The position of a star measured in the east–west direction.
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Declination
The position of a star measured in the north-south direction.
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Ecliptic
A circle in the sky that represents the path of the Sun through the constellations.
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Ecliptic Latitude and Longitude
Measure degrees north and south or east and west with respect to the ecliptic.
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Superior Planet
It orbits outside the orbit of Earth
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Inferior Planet
It orbits inside the orbit of Earth.
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Averted Vision
Glimpse out of the corner of your eye.
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Terminator
The dividing line between the bright and dark parts of Venus.
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Ashen Light
The pale glow on the dark part of Venus.
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Planetary Transit
When a planet passes right in front of the Sun and looks like a tiny black disk against the bright solar surface.
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Sytris Major
A large dark area on Mars extending northward from the equator.
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Albedo Map
It maps and identifies the bright and dark regions of Mars that are visible using a tiny telescope. It provides more information than the typical observer ever sees, serves as a useful guide, and tests your observational abilities.
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Seeing
The steadiness of the atmosphere above the telescope.
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Transparency
The freedom from clouds and haze.
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Darkness
The freedom from interfering artificial light, moonlight, or sunlight.
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western elongation
Mercury is easiest to observe when it is at _____ and appears in the early morning twilight.
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6 - 8
At its greatest elongation, Mercury appears to be only ____ arc seconds in size.
Studied by 3 people
