Predictions for Grazing Occultation of ZC 2322, 2013 Jun 21, near Perth
Graze profile
Grazing Occultation of 2322SB2 Magnitude 4.1 [Red = 4.1]
R2322 = jabbah = nu Scorpii
Date: 2013 Jun 21 17h 6m, to 2013 Jun 21 17h 18m
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 35 47 17 6 4 56 285 0.68 182.1 170.35 12.15S
112 30 0 -33 31 24 17 6 52 55 284 0.70 182.0 170.24 12.25S
113 0 0 -33 26 53 17 7 39 55 283 0.71 181.9 170.14 12.36S
113 30 0 -33 22 13 17 8 27 54 283 0.73 181.8 170.03 12.46S
114 0 0 -33 17 24 17 9 14 53 282 0.74 181.7 169.93 12.57S
114 30 0 -33 12 27 17 10 0 53 281 0.76 181.6 169.83 12.67S
115 0 0 -33 7 21 17 10 47 52 281 0.77 181.5 169.73 12.77S
115 30 0 -33 2 7 17 11 33 52 280 0.79 181.4 169.63 12.87S
116 0 0 -32 56 45 17 12 18 51 280 0.80 181.3 169.53 12.96S
116 30 0 -32 51 15 17 13 4 51 279 0.82 181.2 169.43 13.06S
117 0 0 -32 45 37 17 13 48 50 278 0.84 181.1 169.34 13.16S
117 30 0 -32 39 51 17 14 33 50 278 0.85 181.0 169.25 13.25S
118 0 0 -32 33 57 17 15 17 49 277 0.87 180.9 169.15 13.34S
118 30 0 -32 27 55 17 16 1 48 277 0.89 180.9 169.06 13.43S
119 0 0 -32 21 45 17 16 44 48 276 0.91 180.8 168.97 13.52S
119 30 0 -32 15 28 17 17 27 47 276 0.92 180.7 168.89 13.61S
120 0 0 -32 9 3 17 18 10 47 275 0.94 180.6 168.80 13.69S
Path coordinates are referred to WGS84 (as used by GPS), with the
nominal site altitude being referenced to Mean Sea Level.
2322 is quadruple:
Aa,Ab 4.0 162.3 (CHR 146) Graze path of Ab 0.04 km north, and 0.0 secs later compared to Aa
AB 4.3 5.3 1.3" 1.0 (BU 120) Graze path of B 2.72 km south, and 0.0 secs earlier compared to A
AC 4.3 6.6 41" 337.0 (H 5 6) Graze path of C 76.94 km south, and 37.4 secs earlier compared to A
Librations Long -4.30 Lat -2.44
P +169.71 D -2.92
Illumination of moon 95%+
Elongation of Moon 154
Vertical Profile Scale 1.92 km/arcsec at mean distance of moon
Horizontal Scale Factor 1.57 deg/min
At longitude 116.00:
Limiting Magnitudes for various telescope apertures (in cm)
CA\Tdia 5 10 15 20 25 30 35
9.0 4.1 5.5 6.3 6.8 7.1 7.3 7.5
11.0 4.5 5.9 6.7 7.2 7.5 7.8 7.9
13.0 4.5 5.9 6.7 7.2 7.5 7.8 8.0
15.0 4.5 5.9 6.7 7.2 7.6 7.8 8.0
17.0 4.8 6.3 7.0 7.5 7.9 8.1 8.3
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Double star catalogue details
WDS entries
RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2
16120-1928CHR 146Aa,Ab 1988 2012 6 172 346 0.1 0.1 4.01 B3V -010-026 -19 4333 N 161159.74-192738.3
16120-1928BU 120AB 1873 2012 100 0 1 0.3 1.4 4.35 5.31 -008-000 N D 161159.74-192738.3
16120-1928H 5 6AC 1777 2010 72 335 337 42.0 41.2 4.35 6.60 -011-016 -021-035 -19 4332 N D 161159.74-192738.3
16120-1928MTL 2CD 1846 2011 93 39 55 1.1 2.2 6.60 7.23 B8/9V -021-035 -021-035 -19 4332 N 161158.60-192700.1
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Interferometric catalogue entries
161158.60-192700.1 ADS 9951 MTL 2CD HD 145501C TYC 6209 01536 1 16120-1928 N
Date PA Sep M1 M2
1991.60 52.2 . 2.46 . 6.60 0.01 7.23 0.01 530 100 1.4 1 TYC2002 Ht
1991.60 . . . . 6.61 0.02 7.54 0.02 430 90 1.4 1 TYC2002 Ht
1999.3715 53.5 . 2.37 . . . . . 0.7 1 WSI2000b Su
2002.535 53.3 . 2.30 . . . . . 550 24 0.7 3 WSI2004a Su
2003.478 53.5 . 2.38 . . . . . 550 0.7 2 WSI2004b Su
2006.1971 54.4 . 2.293 . . . 0.6 . 550 24 4.0 1 Msn2009 Su
161159.74-192738.3 ADS 9951 BU 120Aa,B HD 145502 HIP 79374 16120-1928 N
Date PA Sep M1 M2
2009.2630 1.3 0.0 1.3434 0.0000 . . 1.3 . 657 5 4.1 1 Tok2010 S
2009.2630 1.2 0.2 1.3419 0.0096 . . 1.3 . 551 22 4.1 1 Tok2010 S
2012.3540 1.4 0.0 1.3586 0.0007 . . 1.2 . 543 22 4.1 3 Tok2012b S
161159.74-192738.3 ADS 9951 BU 120AB HD 145502 HIP 79374 16120-1928 N
Date PA Sep M1 M2
1923.674 0.9 . 0.765 . . . . . 0.3 3 Mag1925 J
1983.4282 1.9 . 1.276 . . . . . 549 22 3.8 1 McA1987b Sc
1989.3065 1.9 . 1.302 . . . . . 549 22 4.0 1 McA1990 Sc
1989.3887 2. . 1.3 . . . . . 2.1 1 Iso1992 S
1989.3997 4. . 1.2 . . . . . 2.1 1 Iso1992 S
1990.3439 2.8 . 1.304 . . . . . 549 22 4.0 2 Hrt1993 Sc
1990.4454 45. . 0.62 . . . . . 2.1 1 Iso1992 S
1991.25 1.9 . 1.305 . 4.364 0.005 5.390 0.013 511 222 0.3 1 HIP1997a Hh
1991.25 . . . . 4.38 . 5.37 0.01 505 97 0.3 1 Fab2000a Hh
1991.25 . . . . 4.40 . 5.46 0.01 435 70 0.3 1 Fab2000a Hh
1991.5626 0. . 1.13 . . . . . 630 30 2.1 1 Miu1992 S
1991.57 1.3 . 1.324 . 4.350 0.009 5.309 0.010 530 100 1.4 1 TYC2000a Ht
1991.57 . . . . 4.367 0.014 5.386 0.014 430 90 1.4 1 TYC2000a Ht
1993.3341 :354. . : 1.01 . . . . . 630 30 2.1 1 Miu1995 S
1993.3423 :357. . : 1.00 . . . . . 630 30 2.1 1 Miu1995 S
1995.4395 2.0 . 1.297 . . . . . 549 22 2.5 1 Hrt1997 Sc
1996.1842 : 2.1 . : 1.317 . . . . . 549 22 4.0 1 Hrt2000a Sc
1996.4196 1.7 . 1.306 . . . . . 549 22 2.5 1 Hrt2000a Sc
2000.40 1.8 0.1 1.334 0.014 : 4.23 . : 5.20 0.01 1250 380 3.6 1 Sht2002 A
2000.40 . . . . : 4.20 . : 5.14 0.01 2200 480 3.6 1 Sht2002 A
2002.403 1.8 . 1.24 . . . . . 550 24 0.7 5 WSI2004a Su
2003.478 1.8 . 1.31 . . . . . 550 0.7 3 WSI2004b Su
2006.1945 1.6 . 1.330 . . . 1.0 . 550 24 4.0 1 Msn2009 Su
2010.5907 1.0 . 1.344 . . . . . 540 24 3.8 1 Msn2011d Su
2011.2892 1.0 0.1 1.3602 0.0056 . . 1.4 . 534 22 4.1 2 Hrt2012a S
161159.74-192738.3 ADS 9951 H 5 6AC HD 145502 HIP 79374 16120-1928 N
Date PA Sep M1 M2
1991.58 335.8 . 41.34 . 4.350 0.009 6.503 0.011 530 100 1.4 1 TYC2002 Ht
1991.58 . . . . 4.367 0.014 6.558 0.015 430 90 1.4 1 TYC2002 Ht
2003.418 336.9 . 40.76 . . . . . 550 0.7 1 WSI2004b Su
161159.74-192738.3 ADS 9951 CHR 146Aa,Ab HD 145502 HIP 79374 16120-1928 N
Date PA Sep M1 M2
1988.1658 172.3 . 0.058 . . . . . 549 22 3.6 1 McA1993 Sc
1989.3065 164.8 . 0.063 . . . . . 549 22 4.0 2 McA1990 Sc
2009.2630 163.5 0.0 0.0481 0.0000 . . 2.7 . 657 5 4.1 1 Tok2010 S
2009.2630 162.3 9.5 0.0545 0.0005 . . 2.2 . 551 22 4.1 1 Tok2010 S
2011.2892 347.3 0.5 0.0745 0.0030 . . 2.4 . 534 22 4.1 2 Hrt2012a S
2012.3540 345.8 0.7 0.0758 0.0035 . . 2.4 . 543 22 4.1 3 Tok2012b S
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Results of Observer Scan UT
Site Long. Lat. Dist. h m s
Albany 117.8 -35.0 259km 17 15 2
Bundaberg 152.3 -24.8 272km 17 47 16
Perth 115.9 -32.0 111km 17 12 5
Rockhampton 150.5 -23.4 57km 17 46 35
Lunar Limb Profile
