Predictions for Grazing Occultation of SAO 139422, 2014 Apr 15
Graze profile
Grazing Occultation of 139422 K5 Magnitude 9.1 [Red = 8.3] v
Date: 2014 Apr 15 7h 25m, to 2014 Apr 15 7h 36m, during total eclipse
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
167 0 0 -44 45 11 7 25 10 12 91 4.76 19.6 356.73 22.84U
167 30 0 -44 54 37 7 25 27 12 91 4.59 19.6 356.79 22.46U
168 0 0 -45 4 13 7 25 45 13 90 4.44 19.7 356.83 22.07U
168 30 0 -45 14 0 7 26 4 13 90 4.30 19.7 356.88 21.67U
169 0 0 -45 23 56 7 26 24 14 89 4.16 19.8 356.93 21.25U
169 30 0 -45 34 3 7 26 44 14 89 4.04 19.8 356.98 20.82U
170 0 0 -45 44 20 7 27 5 14 88 3.92 19.9 357.03 20.37U
170 30 0 -45 54 47 7 27 27 15 88 3.80 19.9 357.07 19.91U
171 0 0 -46 5 25 7 27 49 15 87 3.70 20.0 357.12 19.43U
171 30 0 -46 16 12 7 28 13 16 87 3.60 20.0 357.17 18.94U
172 0 0 -46 27 10 7 28 37 16 87 3.50 20.1 357.21 18.44U
172 30 0 -46 38 18 7 29 1 16 86 3.41 20.1 357.26 17.92U
173 0 0 -46 49 36 7 29 27 17 86 3.32 20.1 357.29 17.38U
173 30 0 -47 1 4 7 29 53 17 85 3.24 20.2 357.33 16.84U
174 0 0 -47 12 43 7 30 20 18 84 3.16 20.2 357.37 16.27U
174 30 0 -47 24 31 7 30 48 18 84 3.09 20.3 357.42 15.70U
175 0 0 -47 36 30 7 31 16 18 83 3.02 20.3 357.46 15.11U
175 30 0 -47 48 38 7 31 46 19 83 2.95 20.3 357.50 14.51U
176 0 0 -48 0 57 7 32 16 19 82 2.88 20.4 357.54 13.90U
176 30 0 -48 13 25 7 32 46 20 82 2.82 20.4 357.58 13.27U
177 0 0 -48 26 3 7 33 18 20 81 2.76 20.5 357.62 12.63U
177 30 0 -48 38 50 7 33 50 20 81 2.71 20.5 357.65 11.98U
178 0 0 -48 51 48 7 34 23 21 80 2.65 20.5 357.69 11.32U
178 30 0 -49 4 54 7 34 57 21 79 2.60 20.6 357.72 10.65U
179 0 0 -49 18 10 7 35 31 21 79 2.55 20.6 357.76 9.97U
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 3 meters [Estimated]
139422 is variable:
139422 = LW Vir, 9.14 to 9.29, Hp, Type LB:
Librations Long -4.80 Lat -0.45
P +357.36 D +0.94
Illumination of moon 0%E
Elongation of Moon 179
Vertical Profile Scale 3.48 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.90 deg/min
At longitude 173.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
13.4 10.6 11.3 11.9 12.5 13.1 13.8 14.4
15.4 10.6 11.3 11.9 12.5 13.1 13.8 14.4
17.4 10.6 11.3 11.9 12.5 13.1 13.8 14.4
19.4 10.6 11.3 11.9 12.5 13.1 13.8 14.4
21.4 10.6 11.3 11.9 12.5 13.1 13.8 14.4
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Chch graze 172.6 -43.5 310km 7 29 8
Dunedin 170.5 -45.9 4km 7 27 27
MidNZ 173.0 -41.0 576km 7 29 27
Lunar Limb Profile
