COMETS AND THE NEAR EARTH OBJECT PROGRAM AT HOBBS OBSERVATORY - PowerPoint PPT Presentation

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COMETS AND THE NEAR EARTH OBJECT PROGRAM AT HOBBS OBSERVATORY

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  1. COMETS AND THE NEAR EARTH OBJECT PROGRAM AT HOBBS OBSERVATORY By Bert Moritz

  2. EARLY OBSERVATIONS OF COMETS

  3. COMETS AND SUPERSTITION

  4. COMETS

  5. COMETS FORM

  6. OORT CLOUD

  7. LONG AND SHORT PERIOD

  8. COMET IMPACTS ON JUPITER

  9. EARTH IMPACT

  10. WHY THEY DIED

  11. Rain of comets every 65 mil?

  12. Comet impact in modern times

  13. WHY TRACK NEAR EARTH OBJECTS? • Safety of Planet • Future exploitation of resources • Mining of asteroids • Water from comets for fuel

  14. Near Earth Asteroids • Perihelion distance is less than 1.3 AU • Near Earth Comets • Perihelion distance is less than 1.3 AU • Period is less than 200 years (short period) NASA Sponsored Program Minor Planetary Center Harvard Astrophysical Institute Funding Recently Increased

  15. CHANCE OF IMPACT IS VERY SMALL BUT REAL • 784 NEOs over ½ mile wide currently tracked • Only one poses risk of impact with 1 out of 2940 chance if hitting Earth in 40 years • CHANCE OF IMPACT BY NEO • ½ mile wide or larger: one every 500,000 years 1500 feet wide: one every 100,000 years • 150 feet wide: one every 700 years • 90 feet wide: one every 140 years

  16. NEO Work At Hobbs Observatory • Comets tracked for five year • Measurer is Bob Elliott • Observer is Bert Moritz • Observations made with 24” telescope and Apogee U55 camera • Data reduction done in Michigan • Results sent to Smithsonian Astrophysical Institute at Harvard University

  17. ACTIVE OBSERVATORIES • 473 Remanzacco.  Observers L. Donato, M. Gonano, V. Gonano, E. Guido,   M. Travagini, G. Sostero.  0.45-m f/4.4 Newtonian reflector + CCD.750 Hobbs Observatory, Fall Creek.  Observer N. Moritz.  Measurer R. Elliott.   0.60-m f/5 reflector + CCD.808 El Leoncito.  Observers M. L. Varela M., J. Vicentela.  Measurer   M. L. Varela M.  0.5-m f/7.5 double astrograph + CCD.834 Buenos Aires-AAAA.  Observers R. Mackintosh, M. Konishi, R. Mykytyuk.   Measurer R. Mackintosh.  0.25-m f/6.3 Schmidt-Cassegrain + CCD.900 Moriyama.  Observer Y. Ikari.  0.26-m f/7.0 reflector + CCD.945 Observatorio Monte Deva.  Observer J. R. Vidal.  0.36-m f/4.48   Schmidt-Cassegrain + CCD.

  18. PUBLISHED DATA POINTS FROMMINOR PLANET CENTER • COD 750OBS N. MoritzMEA R. ElliottTYP CMTACK  Observations from Hobbs Observatory Sent 05 June 2009 EDTTEL 0.60-m f/5 reflector + CCDNET UCAC2   CK06Q010  C2009 06 05.12015 16 20 16.09 +37 24 07.7          16.3 N750   CK06Q010  C2009 06 05.13321 16 20 15.62 +37 24 09.9          16.3 N750   CK06Q010  C2009 06 05.14252 16 20 15.26 +37 24 11.5          16.6 N750   CK06Q010  C2009 06 05.14410 16 20 15.21 +37 24 11.8          15.8 N750

  19. WHAT I DON’T GET TO SEE

  20. FUN THINGS I DO GET TO SEE

  21. THANK YOU!