Predictions for Grazing Occultation of ZC 894, 2013 Sep 26, southeast of Adelaide to
Tamworth and south of Coff's Harbour, NSW
Graze profile Adelaide | Coff's Harbour
Grazing Occultation of 894cG0 Magnitude 4.4 [Red = 4.1] v
R894 = chi 1 Orionis
Date: 2013 Sep 26 15h 47m, to 2013 Sep 26 15h 58m
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
138 30 0 -36 13 27 15 47 41 5 61 12.01 355.0 356.45 4.83N
139 0 0 -36 1 36 15 47 48 5 60 10.93 355.0 356.44 4.85N
139 30 0 -35 49 45 15 47 55 6 60 10.02 355.0 356.43 4.85N
140 0 0 -35 37 54 15 48 3 6 60 9.24 355.0 356.42 4.86N
140 30 0 -35 26 1 15 48 12 7 59 8.57 354.9 356.42 4.87N
141 0 0 -35 14 9 15 48 22 7 59 7.99 354.9 356.41 4.88N
141 30 0 -35 2 15 15 48 32 8 59 7.48 354.9 356.40 4.88N
142 0 0 -34 50 22 15 48 42 8 58 7.03 354.9 356.40 4.89N
142 30 0 -34 38 28 15 48 54 9 58 6.62 354.9 356.40 4.89N
143 0 0 -34 26 35 15 49 6 9 58 6.26 354.9 356.39 4.89N
143 30 0 -34 14 41 15 49 19 10 57 5.93 354.9 356.39 4.90N
144 0 0 -34 2 47 15 49 32 10 57 5.63 354.9 356.39 4.90N
144 30 0 -33 50 54 15 49 47 11 57 5.36 354.9 356.39 4.89N
145 0 0 -33 39 0 15 50 2 11 56 5.11 354.9 356.40 4.89N
145 30 0 -33 27 8 15 50 18 12 56 4.89 354.9 356.40 4.89N
146 0 0 -33 15 15 15 50 34 12 56 4.68 354.9 356.41 4.88N
146 30 0 -33 3 24 15 50 52 13 55 4.48 354.9 356.41 4.88N
147 0 0 -32 51 33 15 51 10 13 55 4.30 355.0 356.42 4.87N
147 30 0 -32 39 43 15 51 29 14 55 4.13 355.0 356.43 4.86N
148 0 0 -32 27 54 15 51 48 14 54 3.98 355.0 356.44 4.85N
148 30 0 -32 16 7 15 52 9 15 54 3.83 355.0 356.46 4.83N
149 0 0 -32 4 20 15 52 30 15 54 3.69 355.0 356.47 4.82N
149 30 0 -31 52 36 15 52 53 16 53 3.56 355.0 356.49 4.80N
150 0 0 -31 40 53 15 53 16 16 53 3.44 355.0 356.51 4.78N
150 30 0 -31 29 11 15 53 40 17 53 3.33 355.1 356.53 4.76N
151 0 0 -31 17 32 15 54 5 17 52 3.22 355.1 356.55 4.74N
151 30 0 -31 5 55 15 54 30 18 52 3.12 355.1 356.57 4.71N
152 0 0 -30 54 20 15 54 57 18 52 3.02 355.1 356.60 4.69N
152 30 0 -30 42 48 15 55 25 19 51 2.93 355.2 356.63 4.66N
153 0 0 -30 31 19 15 55 53 19 51 2.84 355.2 356.66 4.63N
153 30 0 -30 19 52 15 56 22 20 50 2.76 355.2 356.69 4.59N
154 0 0 -30 8 29 15 56 53 20 50 2.68 355.3 356.73 4.56N
154 30 0 -29 57 9 15 57 24 21 50 2.61 355.3 356.77 4.52N
155 0 0 -29 45 52 15 57 56 22 49 2.53 355.3 356.81 4.48N
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, 8 measures]
894 is variable:
894 = khi 1 Ori, 4.38 to 4.41, V, Type RS
894 is double:
AB 4.5 7.5 0.009" 340.9 (KNG 1) Graze path of B 0.02 km south, and 0.0 secs earlier compared to A
C A S S I N I R E G I O N G R A Z E
Librations Long +2.43 Lat +4.57
P +356.57 D -4.45
Illumination of moon 54%-
Elongation of Moon 95
Vertical Profile Scale 2.58 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.55 deg/min
At longitude 144.50:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
0.9 3.9 5.2 5.8 6.2 6.4 6.5 6.6
2.9 3.9 5.2 5.8 6.2 6.4 6.5 6.6
4.9 4.6 5.9 6.6 7.0 7.2 7.3 7.4
6.9 4.6 6.0 6.6 7.0 7.2 7.4 7.5
8.9 4.6 6.0 6.6 7.0 7.2 7.4 7.5
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Double star catalogue details
WDS entries
RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2
05544+2017KNG 1 1982 2002 2 326 123 0.7 0.5 4.46 7.5 -175-090 N D 055422.97+201634.2
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Interferometric catalogue entries
055423.08+201635.1 chi 1 Ori KNG 1 HD 39587 HIP 27913 05544+2017 N
Date PA Sep M1 M2
1975.960 . . < 0.033 . . . . . 517 20 3.8 1 Hrt1984 Sc
1979.771 . . < 0.030 . . . . . 470 3.8 1 Hrt1984 Sc
1980.159 . . < 0.030 . . . . . 470 3.8 1 Hrt1984 Sc
1980.718 . . < 0.030 . . . . . 470 3.8 1 Hrt1984 Sc
1982. 326. . 0.65 . . . 3.0 . 3400 3. 1 Mcy1983 Si
1988.165 . . < 0.038 . . . . . 549 22 3.6 1 McA1993 Sc
1991.25 . . < 0.1 . . . . 511 222 0.3 1 HIP1997e Hh
1997.8246 . . < 0.036 . . . . . 501 8 3.5 1 Hor1999 S
2001.0280 . . < 0.03 . . . . . 550 24 3.8 1 Msn2012x Su
2002.161 123.22 0.12 0.4976 0.0036 . . s 7.70 0.15 1635 290 9.8 1 Kng2002 A
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AAVSO Variable star entry
Variable identifier Type Max Min Ph Epoch Period
khi 1 Ori RS 4.38 4.41 V
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Adelaide 138.6 -34.9 127km 15 47 42
Bendigo 144.3 -36.8 287km 15 49 42
Brisbane 153.1 -27.5 310km 15 55 56
Canberra 149.2 -35.3 327km 15 52 37
Newcastle 151.7 -33.0 195km 15 54 42
Pt Macquarie 152.8 -31.4 83km 15 55 43
Sydney 151.1 -33.8 258km 15 54 8
Lunar Limb Profile - near Adelaide
Lunar Limb Profile - near Coff's Harbour
