1 / 18

Occultations

Occultations. Do you need one more reason to add more toys for astronomy?. What is an Occultation?. The passage of a celestial body across a line between an observer and another celestial object. Most commonly by the Moon… like this. or this…. Video of a Total Occultation.

hposton
Download Presentation

Occultations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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 Moon…like 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 Bailey’s Beads during solar eclipses. Useful in determining changes in the Sun’s diameter.

  7. Predicted profile of a Grazing Occultation

  8. What other objects could cause occultations? Would it be possible to observe the occultation of a star by another type of solar system object?

  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? How about an ASTEROID? Problems: size, position of star, position of asteroid, brightness difference between them

  10. The answer….YES!

  11. With Enough Observers

  12. Or, this idea by another observer

  13. And now? Moons of Asteroids? Kalliope and Linus Satelloids!

  14. So…what 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

  15. Equipment Low-light video camera Super Circuits PC164C ~ $ 140 Video Time Inserter KIWI-OSD w/GPS receiver ~ $ 250

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

  17. Information and Predictions Steve Preston’s 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/GrazeMaps.html www.fingerlakessynthetics.com/AstOccult/

More Related