Predictions for Grazing Occultation of ZC 765, 2013 Sep 25, near Perth
Graze profile
Grazing Occultation of 765cA5 Magnitude 5.3 [Red = 5.2]
R765 = 106 Tauri
Date: 2013 Sep 25 17h 55m, to 2013 Sep 25 18h 4m
Nominal site altitude 50m
E. Longit. Latitude U.T. Sun Moon TanZ PA AA CA
o ' " o ' " h m s Alt Alt Az o o o
112 0 0 -33 10 5 17 54 57 17 50 3.22 350.4 356.62 5.31N
112 30 0 -32 57 8 17 55 23 18 50 3.12 350.3 356.62 5.31N
113 0 0 -32 44 11 17 55 49 18 50 3.02 350.3 356.62 5.31N
113 30 0 -32 31 13 17 56 17 19 49 2.93 350.4 356.62 5.31N
114 0 0 -32 18 17 17 56 46 19 49 2.84 350.4 356.62 5.31N
114 30 0 -32 5 20 17 57 16 20 48 2.76 350.4 356.63 5.30N
115 0 0 -31 52 25 17 57 46 20 48 2.68 350.4 356.64 5.29N
115 30 0 -31 39 30 17 58 18 21 48 2.60 350.4 356.65 5.28N
116 0 0 -31 26 36 17 58 50 22 47 2.53 350.4 356.66 5.27N
116 30 0 -31 13 44 17 59 24 22 47 2.46 350.4 356.68 5.25N
117 0 0 -31 0 52 17 59 58 23 46 2.40 350.4 356.70 5.23N
117 30 0 -30 48 3 18 0 33 23 46 2.33 350.4 356.72 5.21N
118 0 0 -30 35 15 18 1 10 24 46 2.27 350.5 356.74 5.19N
118 30 0 -30 22 30 18 1 47 24 45 2.21 350.5 356.76 5.17N
119 0 0 -30 9 46 18 2 26 25 45 2.16 350.5 356.79 5.14N
119 30 0 -29 57 6 18 3 5 25 44 2.10 350.6 356.82 5.11N
120 0 0 -29 44 28 18 3 46 26 44 2.05 350.6 356.86 5.08N
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level.
765 is double:
This next pair is not confirmed
** 5.7 6.7 0.005" 349.4** (OCc 644) Graze path of ? 0.01 km south, and 0.0 secs earlier compared to the primary
C A S S I N I R E G I O N G R A Z E
Librations Long +3.52 Lat +3.67
P +356.87 D -3.61
Illumination of moon 63%-
Elongation of Moon 105
Vertical Profile Scale 2.53 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.41 deg/min
At longitude 116.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
1.3 4.5 5.9 6.6 7.0 7.3 7.4 7.6
3.3 4.5 5.9 6.6 7.0 7.3 7.5 7.6
5.3 5.3 6.7 7.4 7.8 8.1 8.3 8.4
7.3 5.3 6.7 7.4 7.8 8.1 8.3 8.5
9.3 5.3 6.7 7.4 7.9 8.2 8.4 8.5
------------------------------------------------------------------------------
Double star catalogue details
Interferometric catalogue entries
050748.43+202506.4 HR 1658 106 Tau HD 32977 HIP 23871 05078+2025
Date PA Sep M1 M2
1982.6185 V394.4 . 0.0049 . . . 1.0 . 1 Evn1983a O
1991.25 . . G . . 5.28 . . . 511 0.3 1 HIP1997g Hh
1994.7089 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc
1994.7089 . . < 0.030 . . . . . 700 40 3.8 1 Msn1996b Sc
1999.8236 . . < 0.054 . . . . . 550 24 2.1 1 Msn2001b Su
------------------------------------------------------------------------------
Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Perth 115.9 -32.0 44km 17 58 40
Lunar Limb Profile
