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Occultations

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Video of a Total Occultation. What happens near the edge of the Moon? An event ... Would it be possible to observe the occultation of a star by another type of ... – PowerPoint PPT presentation

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Title: Occultations


1
Occultations
  • Do you need one more reason to add more toys for
    astronomy?

2
What is an Occultation?
  • The passage of a celestial body across a line
    between an observer and another celestial object

3
Most commonly by the Moonlike this.
4
or this.
5
Video of a Total Occultation
6
What happens near the edge of the Moon?
  • An event called a Grazing Occultation occurs. The
    star may trace out a path behind lunar mountains
    and through lunar valleys.
  • Useful in determining location of Baileys Beads
    during solar eclipses.
  • Useful in determining changes in the Suns
    diameter.

7
Predicted profile of a Grazing Occultation
8
(No Transcript)
9
What other objects could cause occultations?
  • Would it be possible to observe the occultation
    of a star by another type of solar system object?

10
What other objects could cause occultations?
  • Would it be possible to observe the occultation
    of a star by another type of solar system object?
  • How about an ASTEROID?
  • Problems size, position of star, position of
    asteroid, brightness difference between them

11
The answer.YES!
12
  • With
  • Enough
  • Observers

13
  • Or, this idea by another
  • observer

14
  • And now?
  • Moons of
  • Asteroids?
  • Kalliope and
  • Linus
  • Satelloids!

15
Sowhat do I do?
  • Get needed equipment
  • your telescope, known position
  • shortwave radio, stopwatch
  • low-light video camera, radio, VCR
  • low-light video camera, GPS time
  • inserter, VCR

16
Equipment
  • Low-light video camera
  • Super Circuits PC164C
  • 140
  • Video Time Inserter
  • KIWI-OSD w/GPS receiver
  • 250

17
Information and Predictions
  • IOTA
  • www.lunar-occultations.com/iota/iotandx.htm
  • Yahoo IOTAoccultations
  • http//tech.groups.yahoo.com/group/IOTAoccultation
    s/
  • Super Circuits
  • www.supercircuits.com
  • KIWI-OSD
  • www.pfdsystems.com/kiwiosd.html

18
Information and Predictions
  • Steve Prestons Prediction website
  • www.asteroidoccultation.com
  • Derek Breit website
  • www.poyntsource.com/New/Google.htm
  • Asteroid Occultations Report Website
  • www.asteroidoccultation.com/observations
  • Pages by Brad Timerson
  • www.fingerlakessynthetics.com/occultations/GrazeMa
    ps.html
  • www.fingerlakessynthetics.com/AstOccult/
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