Predictions for Grazing Occultation of ZC 913, 2016 Oct 20
Graze profile
Grazing Occultation of 913cB8 Magnitude 5.1 [Red = 5.2] s
R913 = 64 Orionis
Date: 2016 Oct 20 16h 36m, to 2016 Oct 20 17h 2m
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
135 0 0 -46 9 20.9 16 35 34 16 37 3.49 353.7 352.72 8.74N
135 30 0 -45 57 22.3 16 35 59 16 36 3.39 353.7 352.74 8.72N
136 0 0 -45 45 27.8 16 36 25 17 36 3.31 353.8 352.76 8.69N
136 30 0 -45 33 37.1 16 36 52 17 35 3.22 353.8 352.79 8.66N
137 0 0 -45 21 51.8 16 37 19 18 35 3.14 353.8 352.82 8.63N
137 30 0 -45 10 11.4 16 37 48 18 34 3.07 353.9 352.85 8.60N
138 0 0 -44 58 36.2 16 38 17 18 34 2.99 353.9 352.89 8.57N
138 30 0 -44 47 6.4 16 38 47 19 33 2.93 353.9 352.92 8.53N
139 0 0 -44 35 42.3 16 39 17 19 33 2.86 354.0 352.96 8.49N
139 30 0 -44 24 24.2 16 39 49 20 32 2.80 354.0 353.00 8.46N
140 0 0 -44 13 12.3 16 40 21 20 32 2.74 354.1 353.04 8.41N
140 30 0 -44 2 6.9 16 40 54 20 31 2.68 354.1 353.09 8.37N
141 0 0 -43 51 8.2 16 41 28 21 30 2.62 354.1 353.13 8.32N
141 30 0 -43 40 16.6 16 42 2 21 30 2.57 354.2 353.18 8.28N
142 0 0 -43 29 32.3 16 42 37 22 29 2.52 354.2 353.23 8.22N
142 30 0 -43 18 55.6 16 43 14 22 29 2.47 354.3 353.28 8.17N
143 0 0 -43 8 26.9 16 43 50 22 28 2.43 354.3 353.34 8.12N
143 30 0 -42 58 6.4 16 44 28 23 28 2.38 354.4 353.40 8.06N
144 0 0 -42 47 54.4 16 45 6 23 27 2.34 354.5 353.46 8.00N
144 30 0 -42 37 51.0 16 45 46 24 26 2.30 354.5 353.52 7.94N
145 0 0 -42 27 56.8 16 46 25 24 26 2.26 354.6 353.58 7.88N
145 30 0 -42 18 12.1 16 47 6 24 25 2.22 354.7 353.65 7.81N
146 0 0 -42 8 37.1 16 47 47 25 25 2.18 354.7 353.72 7.74N
146 30 0 -41 59 12.3 16 48 30 25 24 2.15 354.8 353.79 7.67N
147 0 0 -41 49 57.9 16 49 12 25 23 2.12 354.9 353.86 7.60N
147 30 0 -41 40 54.2 16 49 56 26 23 2.08 354.9 353.94 7.52N
148 0 0 -41 32 1.5 16 50 40 26 22 2.05 355.0 354.02 7.44N
148 30 0 -41 23 20.1 16 51 25 26 21 2.02 355.1 354.10 7.36N
149 0 0 -41 14 50.4 16 52 11 27 21 2.00 355.2 354.18 7.28N
149 30 0 -41 6 32.7 16 52 57 27 20 1.97 355.3 354.26 7.19N
150 0 0 -40 58 27.1 16 53 44 27 19 1.94 355.4 354.35 7.10N
150 30 0 -40 50 34.1 16 54 31 28 19 1.92 355.4 354.44 7.01N
151 0 0 -40 42 53.9 16 55 20 28 18 1.90 355.5 354.54 6.92N
151 30 0 -40 35 27.0 16 56 8 28 17 1.87 355.6 354.63 6.83N
152 0 0 -40 28 13.5 16 56 58 28 16 1.85 355.7 354.73 6.73N
152 30 0 -40 21 13.7 16 57 48 29 16 1.83 355.8 354.83 6.63N
153 0 0 -40 14 28.0 16 58 38 29 15 1.81 355.9 354.93 6.53N
153 30 0 -40 7 56.6 16 59 29 29 14 1.80 356.0 355.03 6.43N
154 0 0 -40 1 39.9 17 0 21 29 13 1.78 356.1 355.14 6.32N
154 30 0 -39 55 38.0 17 1 13 30 13 1.76 356.2 355.24 6.22N
155 0 0 -39 49 51.3 17 2 5 30 12 1.75 356.4 355.35 6.11N
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level. The path
is adjusted for the effects of refraction at low moon altitudes.
913 is variable:
913 = NSV 2803, 5.13 to 5.16, V
913 is double:
AB 5.1 6.1 0.061" 66.5 (MCA 24) Graze path of B approximately 0.1 km south, and 0.1 secs later compared to A
- refer to graze profile for exact distances
C A S S I N I R E G I O N G R A Z E
Librations Long +6.64 Lat +5.45
P +354.19 D -5.89
Illumination of moon 72%-
Elongation of Moon 117
Vertical Profile Scale approx. 3.55 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.49 deg/min
At longitude 145.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
3.9 4.5 5.9 6.6 7.0 7.3 7.5 7.6
5.9 4.7 6.1 6.8 7.2 7.5 7.7 7.8
7.9 5.3 6.7 7.4 7.8 8.1 8.3 8.5
9.9 5.3 6.7 7.4 7.9 8.2 8.4 8.5
11.9 5.3 6.7 7.4 7.9 8.2 8.4 8.5
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AAVSO Variable star entry
Variable identifier Type Max Min Ph Epoch Period
NSV 2803 5.13 5.16 V
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Hobart 147.3 -42.9 117km 16 49 38.5
Lunar Limb Profile
