Predictions for Grazing Occultation of ZC2372, 2016 Mar 1
Graze profile
Grazing Occultation of 2372SG8 Magnitude 4.3 [Red = 3.8]
R2372 = phi Ophiuchi
Date: 2016 Mar 01 15h 58m, to 2016 Mar 01 16h 27m
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 -16 17 9.3 15 57 33 20 102 2.79 196.4 187.44 8.06S
135 30 0 -16 29 11.5 15 58 0 20 102 2.70 196.4 187.49 8.11S
136 0 0 -16 41 18.5 15 58 28 21 102 2.61 196.5 187.54 8.16S
136 30 0 -16 53 30.2 15 58 56 22 102 2.53 196.5 187.59 8.21S
137 0 0 -17 5 46.5 15 59 26 22 101 2.45 196.6 187.64 8.25S
137 30 0 -17 18 7.3 15 59 56 23 101 2.38 196.6 187.68 8.30S
138 0 0 -17 30 32.6 16 0 27 23 101 2.30 196.7 187.73 8.35S
138 30 0 -17 43 2.4 16 0 59 24 101 2.24 196.7 187.77 8.39S
139 0 0 -17 55 36.4 16 1 32 25 101 2.17 196.8 187.82 8.44S
139 30 0 -18 8 14.7 16 2 6 25 100 2.11 196.8 187.86 8.48S
140 0 0 -18 20 57.2 16 2 41 26 100 2.05 196.8 187.91 8.52S
140 30 0 -18 33 43.7 16 3 16 27 100 1.99 196.9 187.95 8.56S
141 0 0 -18 46 34.1 16 3 53 27 100 1.94 196.9 187.99 8.60S
141 30 0 -18 59 28.4 16 4 31 28 99 1.89 197.0 188.03 8.64S
142 0 0 -19 12 26.5 16 5 9 29 99 1.84 197.0 188.06 8.68S
142 30 0 -19 25 28.1 16 5 48 29 99 1.79 197.0 188.10 8.72S
143 0 0 -19 38 33.1 16 6 29 30 98 1.74 197.1 188.14 8.75S
143 30 0 -19 51 41.5 16 7 10 31 98 1.69 197.1 188.17 8.79S
144 0 0 -20 4 53.2 16 7 52 31 98 1.65 197.1 188.21 8.82S
144 30 0 -20 18 7.8 16 8 35 32 98 1.61 197.2 188.24 8.85S
145 0 0 -20 31 25.4 16 9 19 33 97 1.57 197.2 188.27 8.88S
145 30 0 -20 44 45.7 16 10 4 33 97 1.53 197.2 188.30 8.91S
146 0 0 -20 58 8.6 16 10 50 34 97 1.49 197.3 188.32 8.94S
146 30 0 -21 11 33.9 16 11 37 35 96 1.45 197.3 188.35 8.97S
147 0 0 -21 25 1.4 16 12 25 35 96 1.42 197.3 188.37 8.99S
147 30 0 -21 38 30.9 16 13 13 36 95 1.38 197.3 188.40 9.01S
148 0 0 -21 52 2.3 16 14 3 37 95 1.35 197.4 188.42 9.03S
148 30 0 -22 5 35.3 16 14 53 37 95 1.32 197.4 188.43 9.05S
149 0 0 -22 19 9.8 16 15 45 38 94 1.28 197.4 188.45 9.07S
149 30 0 -22 32 45.4 16 16 37 39 94 1.25 197.4 188.47 9.08S
150 0 0 -22 46 22.1 16 17 30 39 93 1.22 197.4 188.48 9.10S
150 30 0 -22 59 59.5 16 18 24 40 93 1.19 197.4 188.49 9.11S
151 0 0 -23 13 37.5 16 19 19 41 93 1.17 197.4 188.50 9.11S
151 30 0 -23 27 15.7 16 20 15 41 92 1.14 197.4 188.50 9.12S
152 0 0 -23 40 54.0 16 21 12 42 92 1.11 197.4 188.51 9.12S
152 30 0 -23 54 32.1 16 22 9 43 91 1.08 197.5 188.51 9.13S
153 0 0 -24 8 9.8 16 23 7 43 91 1.06 197.5 188.51 9.12S
153 30 0 -24 21 46.7 16 24 6 44 90 1.03 197.4 188.50 9.12S
154 0 0 -24 35 22.7 16 25 6 45 90 1.01 197.4 188.50 9.11S
154 30 0 -24 48 57.4 16 26 7 45 89 0.99 197.4 188.49 9.11S
155 0 0 -25 2 30.6 16 27 8 46 88 0.96 197.4 188.48 9.10S
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.
Projected diameter of star 4 meters [Estimated]
2372 is triple:
AB 4.3 12.9 42" 37.0 (BU 626) Graze path of B approximately 74.0 km south, and 34.3 secs later compared to A
- refer to graze profile for exact distances
AC 4.4 10.8 120" 320.1 (BU 626) Graze path of C approximately 122.9 km south, and 244.5 secs earlier compared to A
- refer to graze profile for exact distances
Librations Long -5.15 Lat -6.93
P +188.88 D -5.86
Illumination of moon 52%-
Elongation of Moon 93
Vertical Profile Scale approx. 1.96 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.57 deg/min
At longitude 145.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
4.9 5.6 7.1 7.8 8.3 8.7 8.9 9.1
6.9 5.6 7.1 7.9 8.3 8.7 8.9 9.1
8.9 5.6 7.1 7.9 8.4 8.7 9.0 9.1
10.9 5.7 7.1 7.9 8.4 8.7 9.0 9.1
12.9 5.7 7.1 7.9 8.4 8.7 9.0 9.2
------------------------------------------------------------------------------
Results of Observer Scan UT
Site Long. Lat. Dist. h m s
AU Mid 143.0 -30.6 1083km 16 6 28.8
Brisbane 153.1 -27.5 327km 16 23 13.3
Bundaberg 152.3 -24.8 96km 16 21 49.9
Rockhampton 150.5 -23.4 36km 16 18 24.4
Lunar Limb Profile
