Predictions for Grazing Occultation of ZC 432, 2013 Jan 20, near Grafton, NSW
Graze profile
Grazing Occultation of 432 M6 Magnitude 5.8 [Red = 5.0] V
R432 = 45 Arietis (RZ)
Date: 2013 Jan 20 12h 37m, to 2013 Jan 20 12h 42m
Nominal site altitude 50m
E. Longit. Latitude U.T. Sun Moon TanZ PA AA CA
o ' " o ' " h m s Alt Alt Az o o o
149 0 0 -28 54 42 12 37 19 20 305 2.82 352.9 10.99 9.06N
149 30 0 -29 1 45 12 37 47 19 305 2.90 352.9 11.08 9.15N
150 0 0 -29 8 55 12 38 15 19 304 2.99 353.0 11.17 9.24N
150 30 0 -29 16 14 12 38 42 18 304 3.08 353.1 11.25 9.32N
151 0 0 -29 23 41 12 39 7 17 304 3.17 353.2 11.34 9.41N
151 30 0 -29 31 16 12 39 32 17 303 3.27 353.3 11.42 9.49N
152 0 0 -29 38 58 12 39 56 16 303 3.38 353.4 11.50 9.57N
152 30 0 -29 46 47 12 40 19 16 303 3.49 353.4 11.58 9.65N
153 0 0 -29 54 44 12 40 42 15 302 3.62 353.5 11.65 9.72N
153 30 0 -30 2 48 12 41 3 15 302 3.74 353.6 11.72 9.79N
154 0 0 -30 10 58 12 41 24 14 302 3.88 353.7 11.79 9.86N
154 30 0 -30 19 15 12 41 44 14 301 4.02 353.7 11.86 9.93N
155 0 0 -30 27 38 12 42 3 13 301 4.18 353.8 11.93 10.00N
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 29 meters [CHARM/CADARS, 8 measures]
432 is variable:
432 = RZ Ari, 5.45 to 6.01, V, Type SRB
Librations Long +3.31 Lat -1.42
P +11.39 D +2.32
Illumination of moon 64%+
Elongation of Moon 106
Vertical Profile Scale 2.80 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.46 deg/min
At longitude 152.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
5.6 5.0 6.4 7.1 7.5 7.7 7.9 8.0
7.6 5.0 6.4 7.1 7.5 7.8 7.9 8.1
9.6 5.0 6.4 7.1 7.5 7.8 8.0 8.1
11.6 5.1 6.4 7.1 7.6 7.8 8.0 8.1
13.6 5.1 6.5 7.2 7.6 7.8 8.0 8.1
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Brisbane 153.1 -27.5 261km 12 40 44
Pt Macquarie 152.8 -31.4 162km 12 40 34
Lunar Limb Profile
