Eclipses lunar eclipse over DSO - PowerPoint PPT Presentation

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Eclipses lunar eclipse over DSO

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Why not every full and new moon? 5 degree tilt of the Moon's orbit means... ...Most new and full: shadow misses. Leads to eclipse seasons ... – PowerPoint PPT presentation

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Title: Eclipses lunar eclipse over DSO


1
Eclipses lunar eclipse over DSO
2
Eclipses occur at new or full moon
Lunar
Solar
3
Why not every full and new moon?
5 degree tilt of the Moons orbit means
4
Most new and full shadow misses
5
Leads to eclipse seasons
now Sep-Oct/March-April Advances 20days/yr
due to 18.6 year nutation
6
Geometry for Lunar eclipses
7
Looking out into the shadow
8
Photo sequence through lunar eclipse
9
Moon often appears red
10
because of light path
11
Next lunar eclipse
12
Geometry of solar eclipses
13
Eclipse starting with partial phases
14
Safely viewing a solar eclipse
15
Almost total diamond ring effect
16
Totality
17
Baileys Beads
18
Sometimes not total. Why?
Annular eclipse
19
Moon too far away
20
Total Solar Eclipse Paths
Our next good one August, 2017 next
good one elsewhere
21
Next solar eclipse
Ends in Mongolia
Russia
Turkey the avian flue eclipse?
Sahara
Starts in Brazil
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