Predictions for Grazing Occultation of R 2034, 2013 Aug 13
Graze profile
Grazing Occultation of 2034 M3 Magnitude 6.8 [Red = 6.0] v
R2034 = EV Virginis
Date: 2013 Aug 13 8h 3m, to 2013 Aug 13 8h 6m
Nominal site altitude 100m
E. Longit. Latitude U.T. Sun Moon TanZ PA AA CA
o ' " o ' " h m s Alt Alt Az o o o
174 0 0 -36 57 10 8 2 58 45 289 0.99 194.9 174.04 4.46S
174 10 0 -36 57 24 8 3 11 45 289 1.00 194.9 174.00 4.50S
174 20 0 -36 57 37 8 3 24 45 289 1.00 194.9 173.96 4.54S
174 30 0 -36 57 50 8 3 37 45 289 1.01 194.8 173.93 4.57S
174 40 0 -36 58 1 8 3 50 45 288 1.01 194.8 173.89 4.61S
174 50 1 -36 58 11 8 4 2 44 288 1.02 194.8 173.85 4.65S
175 0 1 -36 58 21 8 4 15 44 288 1.03 194.7 173.81 4.68S
175 10 1 -36 58 30 8 4 28 44 288 1.03 194.7 173.78 4.72S
175 20 1 -36 58 37 8 4 41 44 288 1.04 194.6 173.74 4.76S
175 30 1 -36 58 44 8 4 53 44 287 1.04 194.6 173.70 4.80S
175 40 1 -36 58 50 8 5 6 44 287 1.05 194.6 173.67 4.83S
175 50 1 -36 58 55 8 5 18 43 287 1.06 194.5 173.63 4.87S
176 0 1 -36 58 59 8 5 31 43 287 1.06 194.5 173.59 4.90S
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level.
Projected diameter of star 4 meters [Estimated]
2034 is variable:
2034 = EV Vir, 6.74 to 7.09, V, Type SRB, Period 120. days, Phase 60 %
Librations Long -6.45 Lat +0.34
P +173.79 D -0.10
Illumination of moon 37%+
Elongation of Moon 75
Vertical Profile Scale 1.95 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.50 deg/min
At longitude 175.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
0.7 5.1 6.5 7.3 7.8 8.2 8.4 8.6
2.7 5.1 6.5 7.3 7.8 8.2 8.5 8.7
4.7 5.9 7.4 8.2 8.7 9.1 9.4 9.6
6.7 5.9 7.4 8.2 8.7 9.1 9.4 9.6
8.7 5.9 7.4 8.2 8.7 9.1 9.4 9.6
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Auckland 174.8 -36.9 8km 8 4 0
Lunar Limb Profile
