1. Solar eclipse
A solar eclipse occurs when the Moon passes between Earth and the Sun,
thereby obscuring the view of the Sun from a small part of Earth, totally or
partially.
2. Lunar eclipse
A lunar eclipse is an astronomical event that occurs when the Moon moves
into the Earth's shadow, causing the Moon to be darkened.
3. Phases of the Moon
is the apparent shape of the Moon's directly sunlit portion as viewed from the
Earth, because the Moon is tidally locked with the Earth, the same
hemisphere is always facing the Earth.
4. Planetary Motion (Wandering Stars)
Ancient astronomers noticed that five "stars" moved differently from
others—Mercury, Venus, Mars, Jupiter, and Saturn—which were
later identified as planets.
The retrograde motion of Mars (apparent backward movement)
puzzled early observers and was explained by Ptolemy’s geocentric
model.
The visibility of planets depends on their position relative to the Earth and the Sun.
Here’s a general guide to when and where you can see the five brightest planets
with the naked eye:
1. Mercury 🪐
Best Time to See: Just after sunset (evening) or before sunrise (morning).
Location: Close to the horizon.
Visibility: Hard to spot because it’s small and close to the Sun.
2. Venus 🌟 (Brightest Planet)
Best Time to See: Shortly after sunset (as the Evening Star) or before
sunrise (as the Morning Star).
Location: Low in the western sky after sunset or eastern sky before sunrise.
Visibility: Very bright and easy to see.
3. Mars 🔴 (The Red Planet)
A solar eclipse occurs when the Moon passes between Earth and the Sun,
thereby obscuring the view of the Sun from a small part of Earth, totally or
partially.
2. Lunar eclipse
A lunar eclipse is an astronomical event that occurs when the Moon moves
into the Earth's shadow, causing the Moon to be darkened.
3. Phases of the Moon
is the apparent shape of the Moon's directly sunlit portion as viewed from the
Earth, because the Moon is tidally locked with the Earth, the same
hemisphere is always facing the Earth.
4. Planetary Motion (Wandering Stars)
Ancient astronomers noticed that five "stars" moved differently from
others—Mercury, Venus, Mars, Jupiter, and Saturn—which were
later identified as planets.
The retrograde motion of Mars (apparent backward movement)
puzzled early observers and was explained by Ptolemy’s geocentric
model.
The visibility of planets depends on their position relative to the Earth and the Sun.
Here’s a general guide to when and where you can see the five brightest planets
with the naked eye:
1. Mercury 🪐
Best Time to See: Just after sunset (evening) or before sunrise (morning).
Location: Close to the horizon.
Visibility: Hard to spot because it’s small and close to the Sun.
2. Venus 🌟 (Brightest Planet)
Best Time to See: Shortly after sunset (as the Evening Star) or before
sunrise (as the Morning Star).
Location: Low in the western sky after sunset or eastern sky before sunrise.
Visibility: Very bright and easy to see.
3. Mars 🔴 (The Red Planet)
