click here photo courtesy: jpl nasa phases of moon saankhya
TRANSCRIPT
Click HerePhoto Courtesy: JPL NASA
PPhhaaseses os off MoMoononSaankhya
Our Sun Moon Earth Set UpOur Sun Moon Earth Set Up
6 AM Morning
12 P
M N
oon
6 PM EveningMoon
12 AM
Midnight
Saankhya
IntroNewMoon
1st
QuartFull
MoonLast
QuartEclipse Conclusion
To RememberTo RememberSaankhya
Our Earth Rotates 360 degrees in 1 day Our Earth Rotates 360 degrees in 1 day which is equal to 24 hours.which is equal to 24 hours.
Moon takes 27.3 days to complete one Moon takes 27.3 days to complete one revolution around the Earth.revolution around the Earth.
Moon has four main phases viz;Moon has four main phases viz;Waning Half MoonWaning Half MoonNew MoonNew MoonWaxing Half Moon Waxing Half Moon Full moonFull moon
Waning Phase [Moon starts fading]
Waxing Phase [Moon comes outOf shade]
IntroNewMoon
1st
QuartFull
MoonLast
QuartEclipse Conclusion
Let us See these Four Phases One Let us See these Four Phases One by Oneby One
IntroNewMoon
1st
QuartFull
MoonLast
QuartEclipse Conclusion
6 AM Morning
12 P
M N
oon
6 PM Evening
12 AM
Midnight
Saankhya Moon Rise
Moon Set
Seen From Earth
WestEast
Sun
IntroNewMoon
1st
QuartFull
MoonLast
QuartEclipse Conclusion
6 AM Morning
12 P
M N
oon
6 PM Evening
12 AM
Midnight
Saankhya
Moon SetMoon Rise
VisibilityOf moon
Seen From Earth
East West
Sun
IntroNewMoon
1st
QuartFull
MoonLast
QuartEclipse Conclusion
6 AM Morning
12 P
M N
oon
6 PM Evening
12 AM
Midnight
Saankhya Moon Set
Moon Rise
Seen From Earth
WestEast
Sun
IntroNewMoon
1st
QuartFull
MoonLast
QuartEclipse Conclusion
6 AM Morning
12 P
M N
oon
6 PM Evening
12 AM
Midnight
Saankhya
Moon RiseMoon Set
VisibilityOf moon
Seen From Earth
East West
Sun
Now one can ask…Now one can ask…How does the moon get light in Full Moon?How does the moon get light in Full Moon?
Reason: The Orbital Plane of Moon is Tilted at an Angle of 5 degrees w.r.t Earth’s equator. So, Only when the plane coincides with Sun-Earth Plane, we have Lunar Eclipse. Same is True with Solar Eclipse
Sun
MoonSun Earth Plane
Earth
Moon’s Orbital Plane
5 degrees
Equator
IntroNewMoon
1st
QuartFull
MoonLast
QuartEclipse Conclusion
ConclusionConclusionThe Moon Rises 45-50 minutes The Moon Rises 45-50 minutes
[approximately] late from the Moon rise of [approximately] late from the Moon rise of previous day.previous day.
Eclipses occur when the Sun-Earth Plane Eclipses occur when the Sun-Earth Plane and Moon’s Orbital Plane Coincide.and Moon’s Orbital Plane Coincide.
Moon takes 27.3 days for one complete Moon takes 27.3 days for one complete revolution. revolution.
IntroNewMoon
1st
QuartFull
MoonLast
QuartEclipse Conclusion
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