Predictions for Grazing Occultation of ZC 2366, 2009 Feb 17
This occultation is at the lit limb of the Moon in daylight
Grazing Occultation of 2366dM1 Magnitude 1.1 [Red = 0.1] v
R2366 = Antares = alpha Scorpii
Date: 2009 Feb 17 21h 33m, to 2009 Feb 17 21h 41m
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
174 0 0 -38 36 18 21 33 1 41 56 279 0.67 180.3 170.70 -7.67S
174 10 0 -38 34 0 21 33 18 41 56 279 0.67 180.3 170.65 -7.72S
174 20 0 -38 31 41 21 33 35 41 56 279 0.68 180.2 170.60 -7.77S
174 30 0 -38 29 21 21 33 52 42 56 279 0.68 180.2 170.55 -7.82S
174 40 0 -38 26 59 21 34 9 42 56 278 0.69 180.1 170.50 -7.87S
174 50 1 -38 24 36 21 34 26 42 55 278 0.69 180.1 170.46 -7.92S
175 0 1 -38 22 12 21 34 43 42 55 278 0.70 180.0 170.41 -7.97S
175 10 1 -38 19 46 21 35 0 42 55 278 0.70 180.0 170.36 -8.02S
175 20 1 -38 17 19 21 35 17 42 55 277 0.71 179.9 170.31 -8.07S
175 30 1 -38 14 51 21 35 34 43 55 277 0.71 179.9 170.26 -8.12S
175 40 1 -38 12 21 21 35 51 43 54 277 0.72 179.8 170.21 -8.17S
175 50 1 -38 9 50 21 36 8 43 54 277 0.72 179.8 170.16 -8.21S
176 0 1 -38 7 18 21 36 24 43 54 277 0.72 179.7 170.12 -8.26S
176 10 2 -38 4 45 21 36 41 43 54 276 0.73 179.7 170.07 -8.31S
176 20 2 -38 2 10 21 36 58 44 54 276 0.73 179.6 170.02 -8.36S
176 30 2 -37 59 34 21 37 15 44 54 276 0.74 179.6 169.97 -8.40S
176 40 2 -37 56 57 21 37 32 44 53 276 0.74 179.5 169.93 -8.45S
176 50 2 -37 54 18 21 37 48 44 53 275 0.75 179.5 169.88 -8.50S
177 0 2 -37 51 39 21 38 5 44 53 275 0.75 179.4 169.83 -8.54S
177 10 2 -37 48 58 21 38 22 45 53 275 0.76 179.4 169.79 -8.59S
177 20 2 -37 46 15 21 38 38 45 53 275 0.76 179.3 169.74 -8.64S
177 30 3 -37 43 32 21 38 55 45 52 274 0.77 179.3 169.69 -8.68S
177 40 3 -37 40 47 21 39 12 45 52 274 0.77 179.3 169.65 -8.73S
177 50 3 -37 38 1 21 39 28 45 52 274 0.78 179.2 169.60 -8.77S
178 0 3 -37 35 13 21 39 45 46 52 274 0.78 179.2 169.56 -8.82S
178 10 3 -37 32 25 21 40 1 46 52 274 0.79 179.1 169.51 -8.86S
178 20 3 -37 29 35 21 40 18 46 52 273 0.80 179.1 169.47 -8.91S
178 30 3 -37 26 44 21 40 34 46 51 273 0.80 179.0 169.42 -8.95S
178 40 3 -37 23 51 21 40 50 46 51 273 0.81 179.0 169.38 -9.00S
178 50 3 -37 20 58 21 41 7 46 51 273 0.81 178.9 169.33 -9.04S
179 0 4 -37 18 3 21 41 23 47 51 273 0.82 178.9 169.29 -9.09S
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 80 meters
2366 = alf Sco, 0.88 to 1.16V, Type LC
2366 is double: AB 1.0 5.4 2.5" 273.7
Librations Long +3.04 Lat +5.64
P +170.24 D +6.34
Illumination of moon 41%-
Elongation of Moon 80
Vertical Profile Scale 1.91 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.36 deg/min
At longitude 176.50:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
-12.4 2.1 3.6 4.3 4.8 5.1 5.4 5.5
-10.4 2.1 3.6 4.3 4.8 5.1 5.4 5.5
-8.4 2.1 3.6 4.3 4.8 5.1 5.4 5.5
-6.4 2.1 3.6 4.3 4.8 5.1 5.4 5.5
-4.4 2.1 3.6 4.3 4.8 5.1 5.4 5.5
Lunar Limb Profile
