Grazing Occultation of 682cF4 Magnitude 6.0 [Red = 5.8] R682 = 85 Tauri Date: 2016 Jan 20 1h 43m, to 2016 Jan 20 1h 48m 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 62 10 11.5 1 43 21 13 279 4.25 176.0 184.94 -9.23S 15 30 0 62 2 30.2 1 43 33 13 279 4.34 176.0 184.96 -9.26S 16 0 0 61 54 45.3 1 43 45 13 280 4.44 176.0 184.98 -9.28S 16 30 0 61 46 56.7 1 43 56 12 280 4.54 176.1 185.00 -9.30S 17 0 0 61 39 4.6 1 44 7 12 281 4.65 176.1 185.02 -9.32S 17 30 0 61 31 9.0 1 44 18 12 281 4.77 176.1 185.04 -9.34S 18 0 0 61 23 9.9 1 44 29 12 282 4.89 176.1 185.06 -9.36S 18 30 0 61 15 7.4 1 44 40 11 282 5.01 176.1 185.08 -9.38S 19 0 0 61 7 1.4 1 44 50 11 283 5.15 176.2 185.10 -9.39S 19 30 0 60 58 52.1 1 45 1 11 283 5.29 176.2 185.12 -9.41S 20 0 0 60 50 39.5 1 45 11 10 284 5.44 176.2 185.14 -9.43S 20 30 0 60 42 23.7 1 45 20 10 284 5.60 176.2 185.16 -9.45S 21 0 0 60 34 4.7 1 45 30 10 285 5.76 176.2 185.17 -9.47S 21 30 0 60 25 42.6 1 45 39 10 285 5.95 176.2 185.19 -9.49S 22 0 0 60 17 17.4 1 45 48 9 286 6.14 176.3 185.21 -9.50S 22 30 0 60 8 49.2 1 45 57 9 286 6.34 176.3 185.22 -9.52S 23 0 0 60 0 18.1 1 46 6 9 287 6.57 176.3 185.24 -9.54S 23 30 0 59 51 44.1 1 46 14 8 287 6.80 176.3 185.26 -9.55S 24 0 0 59 43 7.3 1 46 22 8 288 7.06 176.3 185.27 -9.57S 24 30 0 59 34 27.7 1 46 30 8 288 7.34 176.3 185.29 -9.58S 25 0 0 59 25 45.4 1 46 37 7 289 7.64 176.4 185.30 -9.60S 25 30 0 59 17 0.5 1 46 44 7 289 7.97 176.4 185.32 -9.61S 26 0 0 59 8 13.1 1 46 51 7 290 8.32 176.4 185.33 -9.63S 26 30 0 58 59 23.1 1 46 58 7 290 8.72 176.4 185.35 -9.64S 27 0 0 58 50 31.3 1 47 4 6 290 9.15 176.4 185.36 -9.66S 27 30 0 58 41 36.4 1 47 11 6 291 9.63 176.4 185.38 -9.67S 28 0 0 58 32 39.3 1 47 16 6 291 10.16 176.4 185.39 -9.69S 28 30 0 58 23 40.0 1 47 22 5 292 10.76 176.5 185.41 -9.70S 29 0 0 58 14 38.4 1 47 27 5 292 11.43 176.5 185.42 -9.71S 29 30 0 58 5 34.7 1 47 32 5 293 12.20 176.5 185.43 -9.73S 30 0 0 57 56 26.9 1 47 37 4 293 13.08 176.5 185.44 -9.74S 30 30 0 57 47 18.7 1 47 42 4 294 14.10 176.5 185.46 -9.76S 31 0 0 57 38 8.5 1 47 46 4 294 15.29 176.5 185.47 -9.77S 31 30 0 57 28 56.3 1 47 50 3 294 16.70 176.5 185.48 -9.78S 32 0 0 57 19 42.1 1 47 53 3 295 18.40 176.5 185.49 -9.79S 32 30 0 57 10 25.9 1 47 56 3 295 20.50 176.6 185.50 -9.80S 33 0 0 57 1 7.6 1 47 59 2 296 23.15 176.6 185.51 -9.81S 33 30 0 56 51 47.5 1 48 2 2 296 26.59 176.6 185.52 -9.82S 34 0 0 56 42 25.2 1 48 4 2 297 31.24 176.6 185.53 -9.83S 34 30 0 56 33 0.7 1 48 7 2 297 37.88 176.6 185.55 -9.84S 35 0 0 56 23 33.8 1 48 8 1 297 48.15 176.6 185.56 -9.85S 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. 682 is double: AB 6.8 6.8 0.016" 199.7 (vB 89) Graze path of B 0.05 km north, and 0.0 secs earlier compared to A Librations Long +3.01 Lat +7.19 P +185.73 D +7.14 Illumination of moon 82%+ Elongation of Moon 129 Vertical Profile Scale approx. 3.00 km/arcsec at mean distance of moon Horizontal Scale Factor 2.16 deg/min At longitude 25.00: Limiting Magnitudes for various telescope apertures (in cm) CA\Tdia 5 10 15 20 25 30 35 -13.6 1.7 2.9 3.4 3.6 3.7 3.8 3.8 -11.6 1.7 2.9 3.4 3.6 3.7 3.8 3.8 -9.6 1.7 2.9 3.4 3.6 3.7 3.8 3.8 -7.6 1.7 2.9 3.4 3.6 3.7 3.8 3.8 -5.6 1.7 2.9 3.4 3.6 3.7 3.8 3.8 ------------------------------------------------------------------------------ Double star catalogue details Interferometric catalogue entries 043151.69+155105.9 HR 1432 Hyades vB 89 HD 28677 HIP 21137 04319+1551 Date PA Sep M1 M2 1979.6970 V196.8 . . . . . . . . 1 Evn1981 O 1979.6970 V209.4 . . . . . . . . 1 Rad1982b O 1979.6971 V205.9 . 0.0162 0.0052 . . 0.00 1.62 547 24 . 1 Rad1982a O 1983.0505 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc 1984.0553 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc 1985.8493 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc 1986.8923 . . < 0.030 . . . . . 549 22 3.8 1 Msn1996b Sc 1988.170 . . < 0.038 . . . . . 549 22 3.6 1 McA1993 Sc 1991.9021 . . < 0.030 . . . . . 549 22 3.8 1 Msn1993a Sc 1995.868 . . < 0.05 . . . >3.9 . 2200 400 5.1 1 Pat1998 Si 2005.8658 . . < 0.036 . . . . . 550 24 3.8 1 Msn2009 Su ------------------------------------------------------------------------------ Results of Observer Scan UT Site Long. Lat. Dist. h m s Maarianhamina 19.9 60.1 73km 1 45 9 Merikarvia 21.5 61.9 136km 1 45 39 Pori 21.8 61.5 109km 1 45 44 Turku Isoheikkilä 22.2 60.5 22km 1 45 52 Ulvila Vesitorni 21.9 61.4 107km 1 45 47 Vaasa Sundom 21.6 63.0 248km 1 45 40