Grazing Occultation of 658SA2 Magnitude 4.3 [Red = 0.0] v R658 = 68 Tauri (V776) Date: 2014 Mar 07 17h 58m, to 2014 Mar 07 18h 12m 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 15 0 0 69 25 35 17 58 10 -9 37 208 1.34 355.4 5.71 3.82N 15 15 0 69 25 11 17 58 20 -9 37 208 1.35 355.4 5.73 3.84N 15 30 0 69 24 45 17 58 31 -9 37 209 1.35 355.4 5.75 3.86N 15 45 0 69 24 19 17 58 41 -9 37 209 1.35 355.4 5.77 3.87N 16 0 0 69 23 52 17 58 51 -9 36 209 1.35 355.4 5.79 3.89N 16 15 0 69 23 23 17 59 2 -9 36 210 1.35 355.5 5.81 3.91N 16 30 0 69 22 54 17 59 12 -10 36 210 1.36 355.5 5.82 3.93N 16 45 0 69 22 24 17 59 23 -10 36 211 1.36 355.5 5.84 3.95N 17 0 0 69 21 52 17 59 33 -10 36 211 1.36 355.5 5.86 3.97N 17 15 0 69 21 20 17 59 44 -10 36 211 1.36 355.5 5.88 3.98N 17 30 0 69 20 47 17 59 54 -10 36 212 1.37 355.5 5.90 4.00N 17 45 0 69 20 13 18 0 4 -10 36 212 1.37 355.6 5.91 4.02N 18 0 0 69 19 37 18 0 15 -10 36 212 1.37 355.6 5.93 4.04N 18 15 0 69 19 1 18 0 25 -10 36 213 1.37 355.6 5.95 4.06N 18 30 0 69 18 24 18 0 36 -10 36 213 1.38 355.6 5.97 4.07N 18 45 0 69 17 46 18 0 46 -10 36 213 1.38 355.6 5.99 4.09N 19 0 0 69 17 7 18 0 56 -11 36 214 1.38 355.7 6.01 4.11N 19 15 0 69 16 27 18 1 7 -11 36 214 1.38 355.7 6.02 4.13N 19 30 0 69 15 45 18 1 17 -11 36 214 1.39 355.7 6.04 4.15N 19 45 0 69 15 3 18 1 28 -11 36 215 1.39 355.7 6.06 4.17N 20 0 0 69 14 20 18 1 38 -11 36 215 1.39 355.7 6.08 4.18N 20 15 0 69 13 36 18 1 48 -11 36 215 1.39 355.7 6.10 4.20N 20 30 0 69 12 51 18 1 59 -11 36 216 1.40 355.8 6.11 4.22N 20 45 0 69 12 5 18 2 9 -11 36 216 1.40 355.8 6.13 4.24N 21 0 0 69 11 18 18 2 19 -11 36 216 1.40 355.8 6.15 4.26N 21 15 0 69 10 29 18 2 30 -11 35 217 1.40 355.8 6.17 4.27N 21 30 0 69 9 40 18 2 40 -12 35 217 1.41 355.8 6.19 4.29N 21 45 0 69 8 50 18 2 50 -12 35 217 1.41 355.8 6.20 4.31N 22 0 0 69 7 59 18 3 1 -12 35 218 1.41 355.9 6.22 4.33N 22 15 0 69 7 7 18 3 11 -12 35 218 1.42 355.9 6.24 4.35N 22 30 0 69 6 14 18 3 21 35 218 1.42 355.9 6.26 4.36N 22 45 0 69 5 20 18 3 32 35 219 1.42 355.9 6.28 4.38N 23 0 0 69 4 24 18 3 42 35 219 1.42 355.9 6.30 4.40N 23 15 0 69 3 28 18 3 52 35 219 1.43 356.0 6.31 4.42N 23 30 0 69 2 31 18 4 3 35 220 1.43 356.0 6.33 4.44N 23 45 0 69 1 33 18 4 13 35 220 1.43 356.0 6.35 4.45N 24 0 0 69 0 34 18 4 23 35 220 1.44 356.0 6.37 4.47N 24 15 0 68 59 33 18 4 34 35 221 1.44 356.0 6.39 4.49N 24 30 0 68 58 32 18 4 44 35 221 1.44 356.0 6.40 4.51N 24 45 0 68 57 30 18 4 54 35 221 1.44 356.1 6.42 4.53N 25 0 0 68 56 26 18 5 5 35 222 1.45 356.1 6.44 4.54N 25 15 0 68 55 22 18 5 15 35 222 1.45 356.1 6.46 4.56N 25 30 0 68 54 17 18 5 25 35 222 1.45 356.1 6.48 4.58N 25 45 0 68 53 10 18 5 36 34 223 1.46 356.1 6.49 4.60N 26 0 0 68 52 3 18 5 46 34 223 1.46 356.2 6.51 4.62N 26 15 0 68 50 54 18 5 56 34 223 1.46 356.2 6.53 4.63N 26 30 0 68 49 45 18 6 6 34 224 1.47 356.2 6.55 4.65N 26 45 0 68 48 34 18 6 17 34 224 1.47 356.2 6.57 4.67N 27 0 0 68 47 23 18 6 27 34 224 1.47 356.2 6.58 4.69N 27 15 0 68 46 10 18 6 37 34 225 1.48 356.2 6.60 4.71N 27 30 0 68 44 56 18 6 48 34 225 1.48 356.3 6.62 4.72N 27 45 0 68 43 42 18 6 58 34 225 1.48 356.3 6.64 4.74N 28 0 0 68 42 26 18 7 8 34 226 1.49 356.3 6.65 4.76N 28 15 0 68 41 9 18 7 18 34 226 1.49 356.3 6.67 4.78N 28 30 0 68 39 51 18 7 29 34 226 1.49 356.3 6.69 4.80N 28 45 0 68 38 32 18 7 39 34 227 1.50 356.4 6.71 4.81N 29 0 0 68 37 12 18 7 49 34 227 1.50 356.4 6.73 4.83N 29 15 0 68 35 51 18 8 0 34 227 1.50 356.4 6.74 4.85N 29 30 0 68 34 29 18 8 10 34 228 1.51 356.4 6.76 4.87N 29 45 0 68 33 6 18 8 20 33 228 1.51 356.4 6.78 4.88N 30 0 0 68 31 42 18 8 30 33 228 1.52 356.4 6.80 4.90N 30 15 0 68 30 17 18 8 41 33 229 1.52 356.5 6.82 4.92N 30 30 0 68 28 50 18 8 51 33 229 1.52 356.5 6.83 4.94N 30 45 0 68 27 23 18 9 1 33 229 1.53 356.5 6.85 4.96N 31 0 0 68 25 54 18 9 12 33 230 1.53 356.5 6.87 4.97N 31 15 0 68 24 25 18 9 22 33 230 1.54 356.5 6.89 4.99N 31 30 0 68 22 54 18 9 32 33 230 1.54 356.5 6.90 5.01N 31 45 0 68 21 22 18 9 42 33 231 1.54 356.6 6.92 5.03N 32 0 0 68 19 49 18 9 53 33 231 1.55 356.6 6.94 5.04N 32 15 0 68 18 16 18 10 3 33 231 1.55 356.6 6.96 5.06N 32 30 0 68 16 41 18 10 13 33 232 1.56 356.6 6.98 5.08N 32 45 0 68 15 4 18 10 23 33 232 1.56 356.6 6.99 5.10N 33 0 0 68 13 27 18 10 34 33 232 1.56 356.7 7.01 5.12N 33 15 0 68 11 49 18 10 44 33 233 1.57 356.7 7.03 5.13N 33 30 0 68 10 9 18 10 54 32 233 1.57 356.7 7.05 5.15N 33 45 0 68 8 29 18 11 4 32 233 1.58 356.7 7.06 5.17N 34 0 0 68 6 47 18 11 15 32 234 1.58 356.7 7.08 5.19N 34 15 0 68 5 5 18 11 25 32 234 1.59 356.7 7.10 5.20N 34 30 0 68 3 21 18 11 35 32 234 1.59 356.8 7.12 5.22N 34 45 0 68 1 36 18 11 45 32 235 1.59 356.8 7.14 5.24N 35 0 0 67 59 50 18 11 56 32 235 1.60 356.8 7.15 5.26N Path coordinates are referred to WGS84 (as used by GPS), with the nominal site altitude being referenced to Mean Sea Level. 658 is variable: 658 = V0776 Tau, 4.29 to 4.32, V, Type ACV:, Period 57.25 days, Phase 37 % 658 is multiple: Graze prediction is based on the mean position of AB 4.26 7.85 1.82" 340.5 (KUI 17) Graze path of A 0.18 km north, and 0.0 secs later compared to prediction Graze path of B 4.83 km south, and 1.1 secs earlier compared to prediction AB 4.26 7.85 1.82" 340.5 (KUI 17) Graze path of B 5.00 km south, and 1.1 secs earlier compared to A AC 4.3 11.1 77" 236.0 (H 6 101) Graze path of C 110.95 km north, and 151.1 secs earlier compared to A AE 4.3 10.6 138" 334.5 (H 6 101) Graze path of E 367.33 km south, and 114.7 secs earlier compared to A AD 4.3 9.1 413" 40.1 (ARN 62) Graze path of D 849.10 km south, and 645.7 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 +5.40 Lat +4.86 P +6.86 D -3.96 Illumination of moon 42%+ Elongation of Moon 81 Vertical Profile Scale 2.93 km/arcsec at mean distance of moon Horizontal Scale Factor 1.68 deg/min At longitude 25.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 0.5 4.9 6.4 7.1 7.6 8.0 8.2 8.4 2.5 4.9 6.4 7.2 7.6 8.0 8.2 8.4 4.5 5.7 7.2 8.0 8.5 8.9 9.1 9.3 6.5 5.8 7.2 8.0 8.5 8.9 9.1 9.3 8.5 5.8 7.2 8.0 8.5 8.9 9.2 9.3 ------------------------------------------------------------------------------ Double star catalogue details WDS entries RA Dec Name Y1 Y2 N PA PA Sep Sep M1 M2 04255+1756KUI 17AB 1937 2010 34 350 341 1.5 1.8 4.26 7.85 A2IV +117-034 +108-033 +17 719 N D 042529.38+175540.5 04255+1756H 6 101AC 1783 2006 20 235 236 63.6 77.0 4.26 10.57 +117-034 +116-026 N D 042529.38+175540.5 04255+1756ARN 62AD 1896 2006 10 39 40 413.8 412.8 4.26 9.10 +117-034 +104-029 N D 042529.39+175540.5 04255+1756H 6 101AE 1896 2000 6 339 335 130.8 137.3 4.26 10.55 +117-034 +001-004 N D 042529.38+175540.5 ------------------------------------------------ Interferometric catalogue entries 042529.38+175540.5 ADS 3206 KUI 17A HD 27962 HIP 20648 04255+1756 N Date PA Sep M1 M2 1976.039 . . < 0.033 . . . . . 552 20 3.8 1 Hrt1984 Sc 1991.8995 . . < 0.030 . . . . . 549 22 3.8 1 Msn1993a Sc 1996.022 . . < 0.05 . . . >4.3 . 2200 400 5.1 1 Pat1998 Si 2005.8633 . . < 0.036 . . . . . 550 24 3.8 1 Msn2009 Su 042529.38+175540.5 ADS 3206 KUI 17AB HD 27962 HIP 20648 04255+1756 N Date PA Sep M1 M2 1991.25 338. . 1.750 . 4.348 0.002 8.366 0.086 511 222 0.3 1 HIP1997a Hh 1991.25 . . . . 4.34 . 7.85 0.01 505 97 0.3 1 Fab2000a Hh 1991.25 . . . . 4.41 . 8.44 0.01 435 70 0.3 1 Fab2000a Hh 1991.41 338.6 . 1.75 . 4.262 0.009 8.366 0.086 530 100 1.4 1 TYC2002 Ht 1991.41 . . . . 4.318 0.014 . . 430 90 1.4 1 TYC2002 Ht 1999.7762 340.3 . 1.85 . . . . . 541 88 0.6 1 Hor2000 S 2002.096 337.9 1.0 1.7 0.1 . . 3.12 0.02 798 155 3.6 1 DRs2011 A 2005.169 340.9 0.6 1.757 0.010 . . . . 644 70 1.0 1 Sca2007a S 2010.096 341.4 0.1 1.80 0.01 . . 2.55 0.01 2200 340 3.6 1 DRs2011 A 042529.39+175540.5 ADS 3206 ARN 62AD HD 27962 TYC 1269 01246 1 04255+1756 N Date PA Sep M1 M2 1991.25 38.8 . 413.298 . 4.35 . 9.49 . 550 0.3 1 HIP1997a Hh 1991.57 38.8 . 413.273 . 4.262 0.009 9.100 0.021 530 100 1.4 1 TYC2000b Ht 1991.57 . . . . 4.318 0.014 10.139 0.033 430 90 1.4 1 TYC2000b Ht 042529.39+175540.5 ADS 3206 H 6 101AE HD 27962 TYC 1269 01246 1 04255+1756 N Date PA Sep M1 M2 1991.59 335.0 . 137.532 . 4.262 0.009 10.552 0.053 530 100 1.4 1 TYC2000c Ht 1991.59 . . . . 4.318 0.014 10.892 0.053 430 90 1.4 1 TYC2000c Ht ------------------------------------------------ AAVSO Variable star entry Variable identifier Type Max Min Ph Epoch Period V0776 Tau ACV: 4.29 4.32 V 2440501.3500 57.25 ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Enontekiö 23.6 68.4 71km 18 4 8 Ivalo 27.5 68.7 9km 18 6 49 Kemijärvi 27.4 66.7 221km 18 6 45 Kilpisjärvi 20.8 69.0 17km 18 2 11 Kuusamo 29.2 66.0 286km 18 7 57 Meltaus 25.4 66.9 218km 18 5 20 Muonio 23.7 68.0 118km 18 4 10 Näätämö 29.1 69.7 113km 18 7 54 Nuorgam 27.9 70.1 147km 18 7 3 Pello 24.0 66.8 245km 18 4 22 Posio 28.2 66.1 280km 18 7 15 Pudasjärvi 27.0 65.4 373km 18 6 26 Ranua 26.5 65.9 315km 18 6 7 Rovaniemi 25.7 66.5 261km 18 5 35 Salla 28.7 66.8 197km 18 7 35 Sodankylä 26.6 67.4 153km 18 6 10 Tervola 24.8 66.1 314km 18 4 56 Tornio 24.1 65.8 345km 18 4 29 Tulppio 29.2 67.8 90km 18 7 58 Utsjoki Ailigas 27.1 69.9 120km 18 6 30