Predictions for Grazing Occultation of ZC 2794, 2012 Jul 31
Graze profile
Grazing Occultation of 2794cK3 Magnitude 6.6 [Red = 5.7]
Date: 2012 Jul 31 10h 51m, to 2012 Jul 31 10h 58m
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 0 0 -37 31 40 10 50 45 71 7 0.33 164.4 170.11 17.98S
173 10 0 -37 29 26 10 51 5 72 6 0.33 164.3 170.06 18.03S
173 20 0 -37 27 10 10 51 24 72 5 0.33 164.3 170.02 18.07S
173 30 0 -37 24 54 10 51 44 72 4 0.33 164.3 169.97 18.12S
173 40 0 -37 22 35 10 52 4 72 4 0.33 164.2 169.93 18.17S
173 50 1 -37 20 16 10 52 24 72 3 0.33 164.2 169.88 18.21S
174 0 1 -37 17 55 10 52 43 72 2 0.33 164.1 169.84 18.26S
174 10 1 -37 15 33 10 53 3 72 1 0.33 164.1 169.79 18.30S
174 20 1 -37 13 10 10 53 23 72 1 0.33 164.0 169.74 18.35S
174 30 1 -37 10 45 10 53 43 72 360 0.33 164.0 169.70 18.39S
174 40 1 -37 8 19 10 54 3 72 359 0.33 163.9 169.65 18.44S
174 50 1 -37 5 52 10 54 23 72 358 0.32 163.9 169.61 18.48S
175 0 1 -37 3 24 10 54 43 72 358 0.32 163.8 169.56 18.53S
175 10 2 -37 0 54 10 55 3 72 357 0.32 163.8 169.52 18.57S
175 20 2 -36 58 23 10 55 23 72 356 0.32 163.8 169.47 18.62S
175 30 2 -36 55 50 10 55 43 72 355 0.32 163.7 169.43 18.66S
175 40 2 -36 53 16 10 56 3 72 355 0.32 163.7 169.38 18.71S
175 50 2 -36 50 41 10 56 23 72 354 0.32 163.6 169.34 18.75S
176 0 2 -36 48 5 10 56 43 72 353 0.32 163.6 169.29 18.80S
176 10 2 -36 45 27 10 57 4 72 352 0.32 163.5 169.25 18.84S
176 20 2 -36 42 48 10 57 24 72 351 0.32 163.5 169.20 18.89S
176 30 3 -36 40 7 10 57 44 72 351 0.32 163.4 169.16 18.93S
176 40 3 -36 37 26 10 58 5 72 350 0.32 163.4 169.11 18.98S
176 50 3 -36 34 42 10 58 25 72 349 0.32 163.3 169.07 19.02S
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 3 meters [CHARM/CADARS, 3 measures]
2794 is double:
This next pair is not confirmed
** 7.5 7.5 0.10" 90.0** (OCc1569) Graze path of ? 0.06 km north, and 0.2 secs later compared to the primary
Librations Long +3.06 Lat -4.87
P +169.31 D -3.97
Illumination of moon 96%+
Elongation of Moon 157
Vertical Profile Scale 1.96 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.39 deg/min
At longitude 175.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
14.5 4.5 6.0 6.8 7.3 7.7 7.9 8.1
16.5 4.5 6.0 6.8 7.3 7.7 7.9 8.1
18.5 4.7 6.2 7.0 7.5 7.8 8.1 8.3
20.5 5.0 6.5 7.3 7.8 8.2 8.4 8.6
22.5 5.4 6.8 7.6 8.2 8.5 8.8 9.0
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Double star catalogue details
Interferometric catalogue entries
190844.21-185710.0 BD-19 5317 . HD 178291 HIP 94040 19087-1857
Date PA Sep M1 M2
1981.703 . . < 0.030 . . . . . 470 3.8 1 Hrt1984 Sch
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Lunar Limb Profile
