Predictions for Grazing Occultation of ZC 2349, 2009 Feb 17
This occultation is at the lit limb of the Moon.
Grazing Occultation of 2349SB1 Magnitude 2.9 [Red = 0.0] v
R2349 = Al Niyat = sigma Scorpii
Date: 2009 Feb 17 15h 39m, to 2009 Feb 17 15h 50m
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 -36 18 46 15 39 2 47 90 0.93 18.6 8.29 -9.69N
174 10 0 -36 24 42 15 39 23 47 90 0.92 18.6 8.26 -9.66N
174 20 0 -36 30 37 15 39 45 48 89 0.91 18.6 8.24 -9.64N
174 30 0 -36 36 31 15 40 7 48 89 0.91 18.5 8.22 -9.61N
174 40 0 -36 42 24 15 40 28 48 89 0.90 18.5 8.19 -9.59N
174 50 1 -36 48 16 15 40 50 48 89 0.90 18.5 8.17 -9.57N
175 0 1 -36 54 6 15 41 12 48 88 0.89 18.5 8.14 -9.54N
175 10 1 -36 59 56 15 41 34 49 88 0.88 18.4 8.12 -9.52N
175 20 1 -37 5 44 15 41 56 49 88 0.88 18.4 8.10 -9.49N
175 30 1 -37 11 31 15 42 18 49 88 0.87 18.4 8.07 -9.47N
175 40 1 -37 17 17 15 42 40 49 87 0.86 18.4 8.04 -9.44N
175 50 1 -37 23 2 15 43 2 49 87 0.86 18.3 8.02 -9.42N
176 0 1 -37 28 45 15 43 24 50 87 0.85 18.3 7.99 -9.39N
176 10 2 -37 34 27 15 43 46 50 86 0.85 18.3 7.97 -9.36N
176 20 2 -37 40 8 15 44 8 50 86 0.84 18.3 7.94 -9.34N
176 30 2 -37 45 47 15 44 31 50 86 0.83 18.2 7.91 -9.31N
176 40 2 -37 51 26 15 44 53 50 86 0.83 18.2 7.88 -9.28N
176 50 2 -37 57 3 15 45 16 51 85 0.82 18.2 7.86 -9.25N
177 0 2 -38 2 38 15 45 38 51 85 0.82 18.1 7.83 -9.22N
177 10 2 -38 8 13 15 46 1 51 85 0.81 18.1 7.80 -9.20N
177 20 2 -38 13 46 15 46 23 51 84 0.80 18.1 7.77 -9.17N
177 30 3 -38 19 17 15 46 46 51 84 0.80 18.1 7.74 -9.14N
177 40 3 -38 24 48 15 47 8 52 84 0.79 18.0 7.71 -9.11N
177 50 3 -38 30 17 15 47 31 52 84 0.79 18.0 7.68 -9.08N
178 0 3 -38 35 44 15 47 54 52 83 0.78 18.0 7.65 -9.05N
178 10 3 -38 41 11 15 48 17 52 83 0.78 17.9 7.62 -9.02N
178 20 3 -38 46 35 15 48 39 52 83 0.77 17.9 7.59 -8.99N
178 30 3 -38 51 59 15 49 2 53 82 0.77 17.9 7.56 -8.96N
178 40 3 -38 57 21 15 49 25 53 82 0.76 17.8 7.53 -8.93N
178 50 3 -39 2 41 15 49 48 53 82 0.76 17.8 7.50 -8.89N
179 0 4 -39 8 1 15 50 11 53 81 0.75 17.8 7.47 -8.86N
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level.
2349 = sig Sco, 2.86 to 2.94V, Type BCEP, Period 0.2468390 days, Phase 72 %, Risetime = 3.0 hours
2349 is quadruple: AB 3.3 5.3 350.0 : Aa 3.1 5.2 0.46" 224.2 : Aa-B 2.9 8.4 19.8" 273.3
Librations Long +4.30 Lat +5.62
P +8.32 D -4.71
Illumination of moon 42%-
Elongation of Moon 81
Vertical Profile Scale 2.01 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.46 deg/min
At longitude 176.50:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
-13.3 3.2 4.6 5.4 5.9 6.2 6.4 6.6
-11.3 3.2 4.6 5.4 5.9 6.2 6.4 6.6
-9.3 3.2 4.6 5.4 5.9 6.2 6.4 6.6
-7.3 3.2 4.6 5.4 5.9 6.2 6.4 6.6
-5.3 3.2 4.6 5.4 5.9 6.2 6.4 6.6
Lunar Limb Profile
