Predictions for Grazing Occultation of ZC 2834, 2008 Sep 10
Grazing Occultation of 2834 cA4 Magnitude 5.0
2834 = chi Sagittarii
Date 2008 September 10 (Wednesday) 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
146 0 0 -42 37 39 10 31 47 72 353 0.33 159.8 167.01 10.48S
146 10 0 -42 34 38 10 32 7 72 352 0.33 159.8 166.96 10.54S
146 20 0 -42 31 34 10 32 27 72 352 0.33 159.7 166.90 10.60S
146 30 0 -42 28 29 10 32 47 72 351 0.33 159.6 166.84 10.65S
146 40 0 -42 25 22 10 33 7 72 350 0.33 159.6 166.78 10.71S
146 50 0 -42 22 13 10 33 27 72 349 0.33 159.5 166.73 10.77S
147 0 0 -42 19 3 10 33 47 72 349 0.33 159.5 166.67 10.83S
147 10 0 -42 15 51 10 34 7 72 348 0.33 159.4 166.61 10.88S
147 20 0 -42 12 37 10 34 27 72 347 0.33 159.4 166.55 10.94S
147 30 0 -42 9 21 10 34 47 72 346 0.33 159.3 166.50 11.00S
147 40 0 -42 6 4 10 35 8 72 346 0.33 159.2 166.44 11.06S
147 50 0 -42 2 45 10 35 28 72 345 0.33 159.2 166.38 11.11S
148 0 0 -41 59 25 10 35 49 72 344 0.33 159.1 166.32 11.17S
Path coordinates are referred to WGS84 (as used by GPS).
2834 is double : 5.8 5.8 0.097" 80.6
Graze Path of component #2 0.04km North, and 0.3 secs. later cf. primary.
Librations Long -3.14 Lat +2.96
P +166.2 D +2.4
Illumination of moon 76%+
Elongation of Moon 121
Vertical Profile Scale 1.96 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.29 deg/min
Limiting Magnitudes for various telescope apertures (in mm)
CA\Tdia 50 100 150 200 250 300 350
7.2 5.6 7.1 7.9 8.4 8.8 9.1 9.3
9.2 5.7 7.2 8.0 8.5 8.9 9.2 9.4
11.2 5.7 7.2 8.0 8.5 8.9 9.2 9.4
13.2 5.7 7.2 8.0 8.5 8.9 9.2 9.4
15.2 5.7 7.2 8.0 8.5 8.9 9.2 9.4
Lunar Limb Profile
