Predictions for Grazing Occultation of ZC 1422, 2009 Jun 26
Grazing Occultation of 1422 G8 Magnitude 6.7 [Red = 6.3]
Date: 2009 Jun 26 6h 59m, to 2009 Jun 26 7h 1m
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
173 30 0 -39 20 13 6 58 32 22 309 2.53 33.6 16.10 13.27N
173 40 0 -39 25 3 6 58 41 21 309 2.55 33.6 16.06 13.23N
173 50 0 -39 29 52 6 58 49 21 308 2.58 33.5 16.02 13.19N
174 0 0 -39 34 39 6 58 58 21 308 2.60 33.5 15.99 13.16N
174 10 0 -39 39 25 6 59 6 21 308 2.62 33.4 15.95 13.12N
174 20 1 -39 44 10 6 59 14 21 308 2.65 33.4 15.91 13.08N
174 30 1 -39 48 54 6 59 22 21 308 2.67 33.4 15.87 13.05N
174 40 1 -39 53 36 6 59 30 20 308 2.69 33.3 15.84 13.01N
174 50 1 -39 58 17 6 59 38 20 308 2.72 33.3 15.80 12.97N
175 0 1 -40 2 56 6 59 46 20 307 2.74 33.3 15.76 12.93N
175 10 1 -40 7 35 6 59 54 20 307 2.77 33.2 15.73 12.90N
175 20 1 -40 12 12 7 0 1 20 307 2.79 33.2 15.68 12.85N
175 30 1 -40 16 47 7 0 9 20 307 2.82 33.2 15.66 12.83N
175 40 2 -40 21 22 7 0 16 19 307 2.85 33.1 15.62 12.79N
175 50 2 -40 25 55 7 0 24 19 307 2.87 33.1 15.58 12.75N
176 0 2 -40 30 26 7 0 31 19 307 2.90 33.0 15.55 12.72N
176 10 2 -40 34 57 7 0 39 19 307 2.93 33.0 15.51 12.68N
176 20 2 -40 39 26 7 0 46 19 306 2.96 33.0 15.47 12.64N
176 30 2 -40 43 54 7 0 53 19 306 2.98 32.9 15.44 12.61N
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 1 meters
Librations Long +4.06 Lat +2.12
P +15.86 D -0.67
Illumination of moon 16%+
Elongation of Moon 48
Vertical Profile Scale 2.07 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.78 deg/min
At longitude 175.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
8.9 6.1 7.6 8.4 8.9 9.3 9.6 9.8
10.9 6.2 7.6 8.4 9.0 9.4 9.6 9.8
12.9 6.2 7.7 8.5 9.0 9.4 9.7 9.9
14.9 6.3 7.7 8.5 9.1 9.5 9.7 9.9
16.9 6.3 7.8 8.6 9.1 9.5 9.8 10.0
Lunar Limb Profile