Predictions for Grazing Occultation of ZC 2784, 2006 Mar 23
Grazing Occultation of 2784 cK1 Magnitude 3.3
2784 = tau Sagittarii
Date 2006 March 23 (Thursday) Nominal site altitude 0m
E. Longit. Latitude U.T. Sun Moon TanZ PA WA CA
o ' " o ' " h m s Alt Alt Az o o o
145 0 0 -41 34 9 16 28 3 29 102 1.77 181.0 187.60 8.68S
145 10 0 -41 38 44 16 28 12 30 102 1.76 181.0 187.60 8.68S
145 20 0 -41 43 18 16 28 21 30 102 1.75 181.0 187.57 8.64S
145 30 0 -41 47 51 16 28 31 30 102 1.74 181.0 187.55 8.62S
145 40 0 -41 52 24 16 28 40 30 102 1.72 180.9 187.53 8.60S
145 50 0 -41 56 55 16 28 50 30 101 1.71 180.9 187.51 8.58S
146 0 0 -42 1 26 16 28 59 30 101 1.70 180.9 187.49 8.56S
146 10 0 -42 5 56 16 29 8 31 101 1.69 180.9 187.46 8.54S
146 20 0 -42 10 25 16 29 18 31 101 1.68 180.9 187.44 8.52S
146 30 0 -42 14 53 16 29 28 31 101 1.67 180.8 187.42 8.50S
146 40 0 -42 19 20 16 29 37 31 101 1.66 180.8 187.40 8.48S
146 50 0 -42 23 46 16 29 47 31 100 1.65 180.8 187.38 8.46S
147 0 0 -42 28 11 16 29 56 31 100 1.64 180.8 187.36 8.44S
147 10 0 -42 32 35 16 30 6 32 100 1.63 180.7 187.34 8.41S
147 20 0 -42 36 59 16 30 16 32 100 1.62 180.7 187.32 8.39S
147 30 0 -42 41 21 16 30 26 32 100 1.61 180.7 187.29 8.37S
147 40 0 -42 45 43 16 30 35 32 100 1.60 180.7 187.27 8.35S
147 50 0 -42 50 3 16 30 45 32 99 1.59 180.7 187.25 8.33S
Path coordinates are referred to WGS84 (as used by GPS).
2784 is double : 4.2 4.2 0.004" 235.2
Graze Path of component #2 0.00km North, and 0.0 secs. earlier cf. primary.
Librations Long -5.77 Lat +6.33
P +186.6 D +7.3
Illumination of moon 40%-
Elongation of Moon 78
Vertical Profile Scale 2.03 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.82 deg/min
Limiting Magnitudes for various telescope apertures (in mm)
CA\Tdia 50 100 150 200 250 300 350
4.3 5.7 7.2 8.0 8.5 8.8 9.1 9.3
6.3 5.7 7.2 8.0 8.5 8.9 9.1 9.3
8.3 5.8 7.2 8.0 8.5 8.9 9.1 9.3
10.3 5.8 7.2 8.0 8.5 8.9 9.1 9.3
12.3 5.8 7.2 8.0 8.5 8.9 9.2 9.4
Lunar Limb Profile for graze near Hobart
