Plans for Tomorrow Night’s Erato Occultation 2014 July 13 32 nd Annual IOTA Meeting University of Maryland Observatory College Park, MD David W. Dunham.

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Presentation transcript:

Plans for Tomorrow Night’s Erato Occultation 2014 July nd Annual IOTA Meeting University of Maryland Observatory College Park, MD David W. Dunham

Wide-field Star Chart, Preston  Moon  target Need moon shade on upper left side of telescope to prevent glare from the 88% sunlit Moon 13  away  North

Wide-field Star Chart, Iverson Computed for MD-DC-VA region 22  Zenith  Moon (not shown)  North

Level 4 “Finder Scope” Star Chart, Iverson Computed for MD-DC-VA region; FOV is for a mighty mini  Moon 

Level 5 “ 80mm Midi” Star Chart, Iverson Computed for MD-DC-VA region; FOV is for a mighty midi  Deneb Algedi 

Level 6 “120mm Maxi” Star Chart, Iverson Computed for MD-DC-VA region; FOV is for a mighty maxi  Nashira

Pre-Point Star List for the Erato Occ’n – DC area Occultation of TYC by 62 Erato on 2014 July 15 Pre-point stars for the greater Washington, DC region Univ. J2000 Dec Time Time Star RA Dec Offset E. D. T. Offset Star h m s mag h m o ' ArcMin h m s h m s Designation star am am am am Cap Note am am am DV Aquarii Note am am tau Cap Note am am am Dabih Major Note am Dabih Minor Note 5 Notes 1. The star is SAO = ZC The star is SAO = ZC The star is SAO = ZC This brighter following component is sometimes called beta2 Cap, which follows the convention of numbering wide components of stars with Bayer Greek letter designations in their order of increasing right ascention, and this is what Jim Kaler specifies at But Wikipedia and some others (including the S&T/ESA Millenium Star Atlas) reverse the order, calling this brighter component beta1 Cap (Capricorni). The star is SAO = ZC This star is of personal interest since on 1957 October 30, shortly after I was given my first telescope, I observed a very close miss (star passing over the Leibnitz Mountains near the lunar south pole), sparking my interest in lunar grazing occultations and dynamical astronomy. 5. This fainter component I believe should be beta1 Cap; see Note 1. The star is SAO = ZC 2968.

Wide-field Star Chart, Iverson, Shows  2 Cap Computed for MD-DC-VA region 22  Zenith  Moon (not shown)  North

Level 4 “Finder Scope” Star Chart, Iverson Computed for MD-DC-VA region; FOV is for a mighty mini  

Level 5 “ 80mm Midi” Star Chart, Iverson Computed for MD-DC-VA region; FOV is for a mighty midi   2 Dabih Major

Occult Watcher Stations for the Erato Occ’n – DC area

Occult Watcher Stations for the Erato Occ’n – NE USA

Occult Watcher Stations for the Erato Occ’n – SE USA

Occult Watcher Stations for the Erato Occ’n – List Distance (Occult) Prob. Cloudy Station info Submitted by City km 0.1% - == Right limit plus 3-Sigma == km 2.3% - == Right limit plus 2-Sigma == km 15.8% - == Right limit plus 1-Sigma == % 100% (20) Blank T Mobile : video + gps Ted Blank Hampton, NH % 90% (17) Blank T Mobile : video + gps Ted Blank Hampton, NH % 90% (19) Blank T Mobile : video + gps Ted Blank Hampton, NH % 90% (5) Creek Hill Obs : video + gps Ned Smith Trenton, GA 54.1 km 48.3% - === Right limit === % 40% (2) Willow Oak Obs : video + gps Steve Conard Gamber, MD % 90% (18) Blank T Home : video + gps Ted Blank Hampton, NH % 40% (12) Conard S Mobile-Gamber : video + gps Steve Conard Gamber, MD % 50% (16) Holenstein-Gravic : video + gps Bruce Holenstein Malvern, PA % 10% (9) Iverson : video + gps Ernie Iverson Lufkin, TX % 100% (3) Rolnick Observatory : video + gps Kevin Green Westport % 60% (4) Scheck A Home : video + gps Andrew Scheck Scaggsville, MD % 60% (11) UMD Observatory College Pk MD : video + gps David Dunham Greenbelt, MD % 60% (10) Dunham D Home : video + gps David Dunham Greenbelt, MD 0.0 km 71.3% - ==== Centre Line ==== % 50% (6) AACC : video + gps Chad E FCO, MD % 80% (14) App State Dark Sky Obs : drift scan + other Daniel B. Caton Boone % 50% (7) Winfree Obs : video + gps Hartzel Gillespie Lynchburg, VA % 80% (1) FCO, MD : photoelectric + other Chad E FCO, MD % 100% (13) CSMD : video + gps Chad E FCO, MD km 48.3% - === Left limit === km 15.8% - == Left limit plus 1-Sigma == km 2.3% - == Left limit plus 2-Sigma == km 0.1% - == Left limit plus 3-Sigma ==

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