Predictions for Grazing Occultation of ZC 915, 2013 Nov 20, near Melbourne and Canberra
Graze profile Central Victoria
Grazing Occultation of 915cB2 Magnitude 4.6 [Red = 4.5] v
R915 = chi 2 Orionis
Date: 2013 Nov 20 12h 23m, to 2013 Nov 20 12h 32m
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
140 0 0 -39 19 17 12 23 40 5 59 11.92 356.4 356.84 9.53N
140 30 0 -39 7 31 12 23 47 5 59 10.89 356.4 356.84 9.53N
141 0 0 -38 55 46 12 23 55 6 58 10.01 356.4 356.83 9.53N
141 30 0 -38 44 0 12 24 3 6 58 9.26 356.4 356.83 9.54N
142 0 0 -38 32 15 12 24 12 7 58 8.62 356.4 356.83 9.54N
142 30 0 -38 20 30 12 24 21 7 57 8.05 356.4 356.83 9.54N
143 0 0 -38 8 45 12 24 31 8 57 7.55 356.4 356.83 9.53N
143 30 0 -37 57 1 12 24 42 8 57 7.10 356.4 356.84 9.53N
144 0 0 -37 45 17 12 24 53 8 56 6.71 356.4 356.84 9.53N
144 30 0 -37 33 35 12 25 5 9 56 6.35 356.4 356.85 9.52N
145 0 0 -37 21 53 12 25 18 9 56 6.02 356.4 356.85 9.51N
145 30 0 -37 10 12 12 25 32 10 55 5.73 356.5 356.86 9.51N
146 0 0 -36 58 32 12 25 46 10 55 5.46 356.5 356.87 9.50N
146 30 0 -36 46 54 12 26 1 11 55 5.21 356.5 356.88 9.48N
147 0 0 -36 35 17 12 26 17 11 54 4.99 356.5 356.90 9.47N
147 30 0 -36 23 41 12 26 33 12 54 4.78 356.5 356.91 9.46N
148 0 0 -36 12 7 12 26 51 12 54 4.58 356.5 356.93 9.44N
148 30 0 -36 0 35 12 27 9 13 53 4.40 356.5 356.94 9.43N
149 0 0 -35 49 4 12 27 27 13 53 4.23 356.6 356.96 9.41N
149 30 0 -35 37 36 12 27 47 14 52 4.08 356.6 356.98 9.39N
150 0 0 -35 26 10 12 28 8 14 52 3.93 356.6 357.01 9.36N
150 30 0 -35 14 47 12 28 29 15 52 3.79 356.6 357.03 9.34N
151 0 0 -35 3 26 12 28 51 15 51 3.66 356.6 357.06 9.31N
151 30 0 -34 52 8 12 29 14 16 51 3.54 356.7 357.08 9.28N
152 0 0 -34 40 53 12 29 38 16 51 3.43 356.7 357.12 9.25N
152 30 0 -34 29 41 12 30 2 17 50 3.32 356.7 357.15 9.22N
153 0 0 -34 18 32 12 30 28 17 50 3.22 356.8 357.18 9.19N
153 30 0 -34 7 27 12 30 54 18 49 3.12 356.8 357.22 9.15N
154 0 0 -33 56 26 12 31 22 18 49 3.03 356.8 357.26 9.11N
154 30 0 -33 45 28 12 31 50 19 49 2.94 356.9 357.30 9.07N
155 0 0 -33 34 35 12 32 19 19 48 2.86 356.9 357.34 9.03N
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 2 meters [CHARM/CADARS, 3 measures]
915 is variable:
915 = khi 2 Ori, 4.68 to 4.72, Hp, Type ACYG, Period 2.8682 days, Phase 29 %
915 is double:
This next pair is not confirmed
** 5.5 6.3 0.020" 178.0** (OCc 396) Graze path of ? 0.05 km north, and 0.0 secs earlier compared to the primary
C A S S I N I R E G I O N G R A Z E
Librations Long +1.85 Lat +4.80
P +356.99 D -4.63
Illumination of moon 92%-
Elongation of Moon 147
Vertical Profile Scale 2.78 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.56 deg/min
At longitude 145.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
5.5 2.4 3.7 4.2 4.5 4.6 4.7 4.8
7.5 3.4 4.7 5.2 5.5 5.7 5.8 5.8
9.5 3.4 4.7 5.2 5.5 5.7 5.8 5.9
11.5 3.4 4.7 5.2 5.5 5.7 5.8 5.9
13.5 3.8 5.0 5.6 5.9 6.1 6.2 6.3
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Double star catalogue details
WDS entries
RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2
06039+2008OCC 396 0 5.5 6.3 +004-004 +20 1233 060355.18+200818.5
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Interferometric catalogue entries
060355.18+200818.5 BD+20 1233 OCC 396 HD 41117 HIP 28716 06039+2008
Date PA Sep M1 M2
1975. V178. . 0.02 . 5.5 . 6.3 . 1 OCC2002 O
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AAVSO Variable star entry
Variable identifier Type Max Min Ph Epoch Period
khi 2 Ori ACYG 4.68 4.72 Hp2448502.0800 2.8682
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Canberra 149.2 -35.3 48km 12 27 33
Newcastle 151.7 -33.0 186km 12 29 24
Sydney 151.1 -33.8 121km 12 28 54
Lunar Limb Profile - Central Victoria
