Rest of 2010, and 2011, Best Occultations Summary David Dunham, IOTA.
Occultations during 2009
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Occultations during 2009
David Dunham
IOTA meeting, 2008 Sept. 14
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Planetary and Asteroidal occultations in North America during 1st half of 2009
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Planetary and Asteroidal occultations in North America during 2nd half of 2009
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Star is Corvi = Gienah
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N. American grazes during 2009
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Grazes of Antares• Of special interest are grazes of Antares on the
dark limb of a crescent Moon such that the companion has events while the primary is occulted.
• This occurs only for southern-limit waning phase grazes.
• I observed such a spectacular graze from W. Virginia on 1969 January 25 & want to do it again.
• After the current series ends in early 2010, there will not be another chance until 2024, when I’ll be 82 & probably not able to deploy as many “mighty mini”s as I can now.
• So I want to try the remaining possibilities that occur over land.
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Future Spectacular Grazes of Antares• The best by far will occur on 2009 February 17 in Western Australia, in a
dark sky shortly before morning twilight starts with the 46% sunlit Moon about 60 above the horizon
• Dave Herald’s daughter lives near the path about a day’s drive northeast of Perth; he is making plans for it since weather prospects away from the coast are good; very hot summer temperatures are expected
• The only other possibility will be on 2010 Jan. 11 at low altitude with some morning twilight with a 13% sunlit Moon, visible only from roadless n.w. Ontario
• If not too expensive, a flight with a ski plane to a frozen lake in the area might be arranged, but weather prospects are poor
• On 2008 Oct. 4, there will be a graze with a thin waxing crescent Moon in S. Australia & near Broken Hill, NSW at low altitude; Dave Gault is planning an expedition. The primary will be visible during almost all of the secondary’s events
• On 2009 Oct. 21, there will be a similar graze in the Aegean Sea and western Turkey
• On 2009 June 7, a full-Moon graze will occur in southern New England, but Paul Maley can’t go to that
• On 2009 Aug. 27, a daytime gibbous Moon graze will occur across the Boston area; IOTA plans to accept Ron Dantowitz’s invitation to host the 2009 IOTA meeting at the Clay Center near that date
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