Predictions for Grazing Occultation of ZC 2366, Antares, 2008 Feb 1
Grazing Occultation of 2366 dM1 Magnitude 1.1v
2366 = Antares = alpha Scorpii
Date 2008 February 1 (Friday) Nominal site altitude 0m
Note: this graze occurs at the lit limb of the Moon in morning twilight
E. Longit. Latitude U.T. Sun Moon TanZ PA WA CA
o ' " o ' " h m s Alt Alt Az o o o
173 0 0 -35 14 15 16 50 15 -11 46 93 0.96 19.9 10.99 -13.58N
173 10 0 -35 20 40 16 50 36 -11 46 93 0.96 19.9 10.97 -13.56N
173 20 0 -35 27 3 16 50 58 -11 46 93 0.95 19.9 10.95 -13.54N
173 30 0 -35 33 26 16 51 19 -11 47 92 0.94 19.8 10.93 -13.51N
173 40 0 -35 39 48 16 51 41 -10 47 92 0.94 19.8 10.91 -13.49N
173 50 0 -35 46 8 16 52 3 -10 47 92 0.93 19.8 10.88 -13.46N
174 0 0 -35 52 28 16 52 25 -10 47 92 0.92 19.8 10.86 -13.44N
174 10 0 -35 58 46 16 52 47 -10 48 91 0.92 19.7 10.83 -13.42N
174 20 0 -36 5 3 16 53 9 -9 48 91 0.91 19.7 10.81 -13.39N
174 30 0 -36 11 18 16 53 31 -9 48 91 0.90 19.7 10.79 -13.37N
174 40 0 -36 17 33 16 53 53 -9 48 91 0.90 19.7 10.76 -13.35N
174 50 0 -36 23 46 16 54 15 -9 48 90 0.89 19.6 10.74 -13.32N
175 0 0 -36 29 59 16 54 37 -8 49 90 0.88 19.6 10.71 -13.30N
175 10 0 -36 36 9 16 55 0 -8 49 90 0.88 19.6 10.69 -13.27N
175 20 0 -36 42 19 16 55 22 -8 49 90 0.87 19.6 10.66 -13.25N
175 30 0 -36 48 27 16 55 44 -8 49 89 0.86 19.5 10.64 -13.22N
175 40 0 -36 54 35 16 56 7 -8 49 89 0.86 19.5 10.61 -13.20N
175 50 0 -37 0 40 16 56 29 -7 50 89 0.85 19.5 10.59 -13.17N
176 0 0 -37 6 45 16 56 52 -7 50 88 0.84 19.5 10.56 -13.14N
176 10 0 -37 12 48 16 57 15 -7 50 88 0.84 19.4 10.53 -13.12N
176 20 0 -37 18 50 16 57 37 -7 50 88 0.83 19.4 10.50 -13.09N
176 30 0 -37 24 50 16 58 0 -6 50 88 0.83 19.4 10.48 -13.06N
176 40 0 -37 30 49 16 58 23 -6 51 87 0.82 19.3 10.45 -13.03N
176 50 0 -37 36 47 16 58 46 -6 51 87 0.81 19.3 10.42 -13.00N
177 0 0 -37 42 43 16 59 8 -6 51 87 0.81 19.3 10.39 -12.97N
177 10 0 -37 48 38 16 59 31 -5 51 86 0.80 19.3 10.36 -12.95N
177 20 0 -37 54 31 16 59 54 -5 51 86 0.80 19.2 10.33 -12.92N
177 30 0 -38 0 23 17 0 17 -5 52 86 0.79 19.2 10.30 -12.89N
177 40 1 -38 6 14 17 0 40 -5 52 85 0.79 19.2 10.27 -12.86N
177 50 1 -38 12 3 17 1 4 -5 52 85 0.78 19.1 10.24 -12.83N
178 0 1 -38 17 50 17 1 27 -4 52 85 0.77 19.1 10.21 -12.79N
178 10 1 -38 23 37 17 1 50 -4 52 85 0.77 19.1 10.18 -12.76N
178 20 1 -38 29 21 17 2 13 -4 53 84 0.76 19.0 10.15 -12.73N
178 30 1 -38 35 4 17 2 36 -4 53 84 0.76 19.0 10.12 -12.70N
178 40 1 -38 40 46 17 3 0 -3 53 84 0.75 19.0 10.08 -12.67N
178 50 1 -38 46 26 17 3 23 -3 53 83 0.75 18.9 10.05 -12.63N
Path coordinates are referred to WGS84 (as used by GPS).
2366 is double : 0.9 5.4 2.5" 273.7
Graze Path of component #2 1.25km North, and 6.5 secs. earlier cf. primary.
2366 = alf Sco, 0.88 to 1.16 V , Type LC
Librations Long -1.14 Lat +6.32
P +9.9 D -6.2
Illumination of moon 27%-
Elongation of Moon 62
Vertical Profile Scale 2.00 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.44 deg/min
Limiting Magnitudes for various telescope apertures (in mm)
CA\Tdia 50 100 150 200 250 300 350
-16.6 3.4 4.8 5.6 6.0 6.4 6.6 6.8
-14.6 3.4 4.8 5.6 6.0 6.4 6.6 6.8
-12.6 3.4 4.8 5.6 6.0 6.4 6.6 6.8
-10.6 3.4 4.8 5.6 6.0 6.4 6.6 6.8
-8.6 3.4 4.8 5.6 6.0 6.4 6.6 6.8
Lunar Limb Profile
