Predictions for Grazing Occultation of ZC 1428, 2014 Jan 18, near Pt Macquarie, NSW
Graze profile Macquarie
Grazing Occultation of 1428SA5 Magnitude 3.5 [Red = 3.3]
R1428 = omicron Leonis
Date: 2014 Jan 18 13h 21m, to 2014 Jan 18 14h 6m
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
145 0 0 -29 22 23 13 41 42 37 48 1.33 22.3 2.58 4.97N
145 30 0 -29 31 19 13 42 47 37 47 1.31 22.5 2.74 4.81N
146 0 0 -29 40 33 13 43 53 38 47 1.29 22.6 2.90 4.66N
146 30 0 -29 50 7 13 45 0 38 46 1.27 22.8 3.06 4.50N
147 0 0 -29 59 59 13 46 8 39 45 1.26 22.9 3.21 4.34N
147 30 0 -30 10 9 13 47 16 39 44 1.24 23.1 3.37 4.19N
148 0 0 -30 20 39 13 48 26 39 43 1.22 23.2 3.52 4.03N
148 30 0 -30 31 28 13 49 37 40 42 1.21 23.4 3.68 3.88N
149 0 0 -30 42 36 13 50 49 40 41 1.20 23.6 3.83 3.73N
149 30 0 -30 54 2 13 52 2 40 40 1.18 23.7 3.98 3.58N
150 0 0 -31 5 47 13 53 15 41 39 1.17 23.9 4.13 3.43N
150 30 0 -31 17 51 13 54 29 41 38 1.16 24.0 4.28 3.28N
151 0 0 -31 30 13 13 55 45 41 37 1.15 24.1 4.42 3.14N
151 30 0 -31 42 53 13 57 0 41 36 1.14 24.3 4.57 2.99N
152 0 0 -31 55 52 13 58 17 42 35 1.13 24.4 4.71 2.85N
152 30 0 -32 9 8 13 59 34 42 34 1.12 24.6 4.85 2.72N
153 0 0 -32 22 42 14 0 52 42 33 1.11 24.7 4.98 2.58N
153 30 0 -32 36 34 14 2 11 42 32 1.11 24.8 5.11 2.45N
154 0 0 -32 50 42 14 3 30 42 31 1.10 25.0 5.24 2.32N
154 30 0 -33 5 6 14 4 50 42 30 1.09 25.1 5.37 2.20N
155 0 0 -33 19 47 14 6 10 43 29 1.09 25.2 5.49 2.08N
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level. The path
is adjusted for the effects of refraction at low moon altitudes.
Projected diameter of star 3 meters [CHARM/CADARS, 4 measures]
1428 is quadruple:
Aa,Ab 3.5 0.004" 192.3 (HMM 1) Graze path of Ab 0.01 km north, and 0.0 secs later compared to Aa
Aa,Ac 3.5 0.60" 268.0 (ARI 1) Graze path of Ac 0.63 km north, and 1.6 secs earlier compared to Aa
AB 3.6 10.8 97" 47.1 (H 6 76) Graze path of B 227.48 km south, and 122.5 secs later compared to A
C A S S I N I R E G I O N G R A Z E
Librations Long -2.83 Lat +5.43
P +2.02 D -5.28
Illumination of moon 95%-
Elongation of Moon 154
Vertical Profile Scale 2.72 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.31 deg/min
At longitude 144.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
1.3 2.3 3.7 4.4 4.9 5.2 5.4 5.5
3.3 2.3 3.7 4.4 4.9 5.2 5.4 5.5
5.3 2.3 3.7 4.4 4.9 5.2 5.4 5.5
7.3 3.2 4.6 5.3 5.8 6.1 6.3 6.4
9.3 4.3 5.7 6.5 7.0 7.3 7.5 7.6
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Double star catalogue details
WDS entries
RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2
09412+0954HMM 1Aa,Ab 1990 2010 25 90 355 0.0 0.0 3.52 A5V F6II -142-037 +10 2044 NO 094109.12+095332.6
09412+0954ARI 1Aa,Ac 1997 1997 1 268 268 0.6 0.6 3.52 A5V F6II -142-037 +10 2044 NX 094109.12+095332.6
09412+0954H 6 76AB 1783 2011 26 40 47 63.5 96.8 3.56 10.83 -143-037 -009-004 NL 094109.12+095332.6
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Newcastle 151.7 -33.0 112km 13 57 34
Pt Macquarie 152.8 -31.4 88km 14 0 26
Sydney 151.1 -33.8 227km 13 55 55
Lunar Limb Profile - Pt Macquarie
