Ephemerides for Comet C/1995O1 (Hale-Bopp) Orbital elements: Perihelion: Year: 1997 Month: 4 Day: 1 Hour(UT): 3.1 Julian Day: 2450539.63039 q: 0.9141866 e: 0.9951484 omega: 130.58385 OMEGA: 282.47168 i: 89.43061 eqx: J2000. Osculating epoch: 1996 Nov. 13 Ephemerides listed for 0h UT: Yr Mn Dy J.D.(Ut) R.A. J2000. Dec. dRA("/h)dDec dRA ("/sec) dDec Delta R Long. Lat. Elong Phase Tail . 1997 04 16 2450554.5 03 36 58.43 +35 57 28.7 169.37-101.88 0.047046 -.028300 1.52 0.95 59.8 16.1 37.57 40.00 53.9 1997 04 17 2450555.5 03 42 22.25 +35 16 32.4 164.53-102.34 0.045702 -.028429 1.54 0.96 60.7 15.2 37.20 39.35 55.6 1997 04 18 2450556.5 03 47 34.19 +34 35 30.5 159.83-102.58 0.044398 -.028494 1.56 0.96 61.7 14.3 36.82 38.70 57.2 1997 04 19 2450557.5 03 52 34.77 +33 54 27.9 155.29-102.61 0.043136 -.028502 1.57 0.97 62.5 13.4 36.44 38.04 58.7 1997 04 20 2450558.5 03 57 24.54 +33 13 29.1 150.90-102.45 0.041918 -.028459 1.59 0.97 63.4 12.5 36.06 37.37 60.3 1997 04 21 2450559.5 04 02 4.00 +32 32 37.8 146.67-102.14 0.040743 -.028371 1.60 0.98 64.2 11.6 35.67 36.71 61.8 1997 04 22 2450560.5 04 06 33.65 +31 51 57.5 142.60-101.68 0.039612 -.028244 1.62 0.99 65.1 10.8 35.28 36.04 63.3 1997 04 23 2450561.5 04 10 53.98 +31 11 31.3 138.69-101.09 0.038525 -.028081 1.63 0.99 65.8 9.9 34.89 35.37 64.8 1997 04 24 2450562.5 04 15 5.47 +30 31 21.8 134.93-100.40 0.037481 -.027888 1.65 1.00 66.6 9.1 34.50 34.70 66.2 1997 04 25 2450563.5 04 19 8.57 +29 51 31.2 131.33 -99.61 0.036480 -.027669 1.67 1.01 67.4 8.3 34.11 34.04 67.7 1997 04 26 2450564.5 04 23 3.71 +29 12 1.3 127.87 -98.74 0.035520 -.027428 1.68 1.02 68.1 7.5 33.72 33.37 69.1 1997 04 27 2450565.5 04 26 51.30 +28 32 54.0 124.56 -97.81 0.034601 -.027169 1.70 1.02 68.8 6.7 33.32 32.71 70.5 1997 04 28 2450566.5 04 30 31.75 +27 54 10.4 121.40 -96.82 0.033721 -.026893 1.72 1.03 69.5 6.0 32.93 32.06 71.9 1997 04 29 2450567.5 04 34 5.43 +27 15 51.7 118.37 -95.78 0.032880 -.026605 1.74 1.04 70.2 5.2 32.54 31.41 73.3 1997 04 30 2450568.5 04 37 32.69 +26 37 58.8 115.47 -94.70 0.032076 -.026307 1.75 1.05 70.9 4.5 32.15 30.77 74.7 1997 05 01 2450569.5 04 40 53.87 +26 00 32.4 112.70 -93.60 0.031307 -.026000 1.77 1.06 71.6 3.8 31.75 30.14 76.1 1997 05 02 2450570.5 04 44 9.30 +25 23 32.9 110.06 -92.48 0.030572 -.025688 1.79 1.06 72.2 3.1 31.36 29.51 77.5 1997 05 03 2450571.5 04 47 19.27 +24 47 0.8 107.53 -91.34 0.029870 -.025372 1.80 1.07 72.8 2.4 30.97 28.89 78.9 1997 05 04 2450572.5 04 50 24.08 +24 10 56.2 105.12 -90.19 0.029199 -.025053 1.82 1.08 73.5 1.7 30.59 28.28 80.3 1997 05 05 2450573.5 04 53 23.98 +23 35 19.2 102.81 -89.04 0.028558 -.024734 1.84 1.09 74.1 1.0 30.20 27.68 81.7 1997 05 06 2450574.5 04 56 19.22 +23 00 9.8 100.60 -87.89 0.027945 -.024414 1.86 1.10 74.7 0.4 29.82 27.09 83.1 1997 05 07 2450575.5 04 59 10.06 +22 25 27.9 98.49 -86.75 0.027359 -.024096 1.87 1.11 75.3 -0.3 29.44 26.51 84.5 1997 05 08 2450576.5 05 01 56.70 +21 51 13.2 96.47 -85.61 0.026798 -.023781 1.89 1.12 75.8 -0.9 29.07 25.94 85.9 1997 05 09 2450577.5 05 04 39.36 +21 17 25.5 94.54 -84.49 0.026262 -.023469 1.91 1.13 76.4 -1.5 28.70 25.38 87.3 1997 05 10 2450578.5 05 07 18.25 +20 44 4.4 92.70 -83.38 0.025749 -.023161 1.92 1.14 77.0 -2.1 28.33 24.83 88.8 1997 05 11 2450579.5 05 09 53.53 +20 11 9.6 90.93 -82.29 0.025259 -.022857 1.94 1.15 77.5 -2.7 27.97 24.30 90.2 1997 05 12 2450580.5 05 12 25.40 +19 38 40.5 89.24 -81.21 0.024789 -.022559 1.96 1.16 78.1 -3.3 27.62 23.78 91.7 1997 05 13 2450581.5 05 14 54.02 +19 06 36.8 87.62 -80.16 0.024340 -.022266 1.97 1.17 78.6 -3.9 27.27 23.26 93.1 1997 05 14 2450582.5 05 17 19.54 +18 34 57.8 86.08 -79.12 0.023910 -.021978 1.99 1.18 79.2 -4.5 26.92 22.76 94.6 1997 05 15 2450583.5 05 19 42.12 +18 03 43.2 84.59 -78.11 0.023498 -.021697 2.01 1.19 79.7 -5.0 26.58 22.28 96.1 1997 05 16 2450584.5 05 22 1.89 +17 32 52.3 83.17 -77.12 0.023104 -.021423 2.02 1.20 80.2 -5.6 26.25 21.81 97.7 1997 05 17 2450585.5 05 24 18.99 +17 02 24.5 81.81 -76.16 0.022726 -.021155 2.04 1.21 80.7 -6.1 25.93 21.34 99.2 1997 05 18 2450586.5 05 26 33.54 +16 32 19.3 80.51 -75.22 0.022364 -.020893 2.06 1.23 81.2 -6.7 25.61 20.90 100.8 1997 05 19 2450587.5 05 28 45.67 +16 02 36.2 79.26 -74.30 0.022017 -.020639 2.07 1.24 81.7 -7.2 25.31 20.46 102.3 1997 05 20 2450588.5 05 30 55.48 +15 33 14.4 78.07 -73.41 0.021685 -.020391 2.09 1.25 82.2 -7.7 25.01 20.04 103.9 1997 05 21 2450589.5 05 33 3.07 +15 04 13.4 76.92 -72.54 0.021366 -.020150 2.11 1.26 82.7 -8.2 24.72 19.64 105.6 1997 05 22 2450590.5 05 35 8.56 +14 35 32.7 75.82 -71.70 0.021060 -.019916 2.12 1.27 83.2 -8.7 24.44 19.24 107.2 1997 05 23 2450591.5 05 37 12.03 +14 07 11.5 74.76 -70.88 0.020767 -.019689 2.14 1.28 83.7 -9.2 24.17 18.86 108.9 1997 05 24 2450592.5 05 39 13.58 +13 39 9.4 73.75 -70.09 0.020485 -.019469 2.15 1.29 84.2 -9.7 23.91 18.50 110.6 1997 05 25 2450593.5 05 41 13.29 +13 11 25.7 72.77 -69.32 0.020215 -.019256 2.17 1.31 84.7 -10.2 23.67 18.15 112.3 1997 05 26 2450594.5 05 43 11.24 +12 43 59.8 71.84 -68.58 0.019956 -.019049 2.18 1.32 85.1 -10.7 23.43 17.81 114.0 1997 05 27 2450595.5 05 45 7.51 +12 16 51.2 70.94 -67.86 0.019707 -.018850 2.20 1.33 85.6 -11.1 23.21 17.48 115.7 1997 05 28 2450596.5 05 47 2.17 +11 49 59.3 70.08 -67.16 0.019467 -.018657 2.21 1.34 86.1 -11.6 22.99 17.17 117.5 1997 05 29 2450597.5 05 48 55.28 +11 23 23.4 69.25 -66.49 0.019237 -.018470 2.23 1.35 86.5 -12.0 22.79 16.88 119.3 1997 05 30 2450598.5 05 50 46.92 +10 57 3.1 68.45 -65.85 0.019015 -.018291 2.24 1.36 87.0 -12.5 22.61 16.60 121.1 1997 05 31 2450599.5 05 52 37.14 +10 30 57.8 67.68 -65.22 0.018801 -.018117 2.26 1.38 87.4 -12.9 22.44 16.33 123.0 1997 06 01 2450600.5 05 54 26.00 +10 05 6.8 66.94 -64.62 0.018594 -.017951 2.27 1.39 87.9 -13.4 22.28 16.08 124.8 1997 06 02 2450601.5 05 56 13.55 +09 39 29.8 66.22 -64.04 0.018395 -.017790 2.29 1.40 88.3 -13.8 22.13 15.84 126.7 1997 06 03 2450602.5 05 57 59.83 +09 14 6.1 65.53 -63.49 0.018202 -.017636 2.30 1.41 88.8 -14.2 22.01 15.61 128.6 1997 06 04 2450603.5 05 59 44.90 +08 48 55.2 64.85 -62.95 0.018015 -.017487 2.31 1.42 89.2 -14.6 21.89 15.40 130.5 1997 06 05 2450604.5 06 01 28.80 +08 23 56.6 64.20 -62.44 0.017834 -.017345 2.33 1.44 89.7 -15.0 21.79 15.20 132.4 1997 06 06 2450605.5 06 03 11.56 +07 59 9.8 63.57 -61.95 0.017658 -.017208 2.34 1.45 90.1 -15.5 21.71 15.01 134.3 1997 06 07 2450606.5 06 04 53.22 +07 34 34.3 62.96 -61.48 0.017488 -.017077 2.36 1.46 90.6 -15.9 21.64 14.84 136.2 1997 06 08 2450607.5 06 06 33.83 +07 10 9.7 62.36 -61.03 0.017322 -.016952 2.37 1.47 91.0 -16.3 21.59 14.68 138.1 1997 06 09 2450608.5 06 08 13.41 +06 45 55.5 61.78 -60.59 0.017160 -.016832 2.38 1.49 91.4 -16.7 21.56 14.54 140.1 1997 06 10 2450609.5 06 09 51.99 +06 21 51.1 61.21 -60.18 0.017003 -.016717 2.40 1.50 91.9 -17.1 21.54 14.41 142.0 1997 06 11 2450610.5 06 11 29.61 +05 57 56.3 60.66 -59.79 0.016850 -.016607 2.41 1.51 92.3 -17.5 21.54 14.29 144.0 1997 06 12 2450611.5 06 13 6.30 +05 34 10.5 60.12 -59.41 0.016701 -.016502 2.42 1.52 92.7 -17.8 21.55 14.18 145.9 1997 06 13 2450612.5 06 14 42.08 +05 10 33.4 59.60 -59.05 0.016556 -.016402 2.43 1.54 93.2 -18.2 21.58 14.08 147.8 1997 06 14 2450613.5 06 16 16.99 +04 47 4.4 59.09 -58.70 0.016414 -.016307 2.45 1.55 93.6 -18.6 21.63 14.00 149.7 1997 06 15 2450614.5 06 17 51.04 +04 23 43.4 58.59 -58.38 0.016276 -.016216 2.46 1.56 94.0 -19.0 21.69 13.92 151.6 1997 06 16 2450615.5 06 19 24.26 +04 00 29.7 58.11 -58.07 0.016141 -.016130 2.47 1.57 94.4 -19.4 21.77 13.86 153.5 1997 06 17 2450616.5 06 20 56.67 +03 37 23.2 57.63 -57.77 0.016009 -.016048 2.48 1.59 94.9 -19.7 21.87 13.81 155.4 1997 06 18 2450617.5 06 22 28.30 +03 14 23.3 57.17 -57.49 0.015880 -.015970 2.49 1.60 95.3 -20.1 21.98 13.77 157.3 1997 06 19 2450618.5 06 23 59.17 +02 51 29.8 56.71 -57.23 0.015754 -.015897 2.51 1.61 95.7 -20.5 22.11 13.74 159.1 1997 06 20 2450619.5 06 25 29.30 +02 28 42.3 56.27 -56.98 0.015630 -.015827 2.52 1.62 96.1 -20.8 22.25 13.71 161.0 1997 06 21 2450620.5 06 26 58.71 +02 06 0.5 55.83 -56.74 0.015510 -.015762 2.53 1.64 96.5 -21.2 22.41 13.70 162.8 1997 06 22 2450621.5 06 28 27.42 +01 43 24.0 55.41 -56.52 0.015392 -.015700 2.54 1.65 96.9 -21.5 22.58 13.70 164.6 1997 06 23 2450622.5 06 29 55.44 +01 20 52.6 54.99 -56.31 0.015276 -.015642 2.55 1.66 97.4 -21.9 22.77 13.70 166.3 1997 06 24 2450623.5 06 31 22.80 +00 58 25.8 54.59 -56.12 0.015163 -.015588 2.56 1.67 97.8 -22.2 22.97 13.71 168.1 1997 06 25 2450624.5 06 32 49.50 +00 36 3.3 54.19 -55.93 0.015052 -.015537 2.57 1.69 98.2 -22.6 23.18 13.73 169.8 1997 06 26 2450625.5 06 34 15.58 +00 13 45.0 53.79 -55.77 0.014943 -.015490 2.58 1.70 98.6 -22.9 23.41 13.75 171.4 1997 06 27 2450626.5 06 35 41.03 -00 08 29.6 53.41 -55.61 0.014836 -.015447 2.59 1.71 99.0 -23.3 23.65 13.79 173.1 1997 06 28 2450627.5 06 37 5.87 -00 30 40.8 53.03 -55.46 0.014730 -.015407 2.60 1.72 99.4 -23.6 23.90 13.82 174.7 1997 06 29 2450628.5 06 38 30.12 -00 52 48.8 52.65 -55.33 0.014625 -.015370 2.61 1.74 99.8 -24.0 24.17 13.87 176.3 1997 06 30 2450629.5 06 39 53.78 -01 14 53.9 52.28 -55.21 0.014522 -.015337 2.62 1.75 100.3 -24.3 24.45 13.92 177.9 1997 07 01 2450630.5 06 41 16.87 -01 36 56.4 51.91 -55.10 0.014420 -.015307 2.63 1.76 100.7 -24.7 24.73 13.97 179.4 1997 07 02 2450631.5 06 42 39.38 -01 58 56.6 51.55 -55.01 0.014319 -.015280 2.64 1.77 101.1 -25.0 25.03 14.03 180.9 1997 07 03 2450632.5 06 44 1.34 -02 20 54.6 51.18 -54.92 0.014218 -.015255 2.65 1.79 101.5 -25.3 25.34 14.09 182.4 1997 07 04 2450633.5 06 45 22.74 -02 42 50.9 50.82 -54.84 0.014118 -.015234 2.66 1.80 101.9 -25.7 25.66 14.16 183.8 1997 07 05 2450634.5 06 46 43.58 -03 04 45.5 50.46 -54.78 0.014018 -.015216 2.67 1.81 102.3 -26.0 25.99 14.23 185.3 1997 07 06 2450635.5 06 48 3.88 -03 26 38.8 50.11 -54.72 0.013919 -.015200 2.68 1.83 102.7 -26.3 26.33 14.30 186.7 1997 07 07 2450636.5 06 49 23.65 -03 48 30.9 49.75 -54.67 0.013820 -.015187 2.69 1.84 103.1 -26.7 26.68 14.38 188.0 1997 07 08 2450637.5 06 50 42.88 -04 10 22.1 49.40 -54.63 0.013722 -.015176 2.70 1.85 103.5 -27.0 27.04 14.46 189.4 1997 07 09 2450638.5 06 52 1.57 -04 32 12.6 49.04 -54.60 0.013623 -.015168 2.71 1.86 103.9 -27.3 27.40 14.54 190.7 1997 07 10 2450639.5 06 53 19.74 -04 54 2.6 48.69 -54.58 0.013525 -.015162 2.71 1.88 104.3 -27.7 27.78 14.63 191.9 1997 07 11 2450640.5 06 54 37.39 -05 15 52.3 48.34 -54.57 0.013428 -.015158 2.72 1.89 104.7 -28.0 28.16 14.72 193.2 1997 07 12 2450641.5 06 55 54.52 -05 37 41.8 47.99 -54.56 0.013330 -.015157 2.73 1.90 105.1 -28.3 28.55 14.80 194.4 1997 07 13 2450642.5 06 57 11.14 -05 59 31.4 47.64 -54.57 0.013233 -.015157 2.74 1.91 105.6 -28.6 28.94 14.89 195.6 1997 07 14 2450643.5 06 58 27.24 -06 21 21.3 47.29 -54.58 0.013136 -.015160 2.75 1.93 106.0 -29.0 29.35 14.98 196.8 1997 07 15 2450644.5 06 59 42.84 -06 43 11.5 46.94 -54.59 0.013039 -.015165 2.76 1.94 106.4 -29.3 29.75 15.08 198.0 1997 07 16 2450645.5 07 00 57.93 -07 05 2.2 46.59 -54.62 0.012942 -.015171 2.76 1.95 106.8 -29.6 30.17 15.17 199.1 1997 07 17 2450646.5 07 02 12.52 -07 26 53.7 46.24 -54.65 0.012845 -.015179 2.77 1.96 107.2 -29.9 30.59 15.26 200.2 1997 07 18 2450647.5 07 03 26.61 -07 48 46.1 45.90 -54.68 0.012749 -.015190 2.78 1.98 107.6 -30.3 31.02 15.36 201.3 1997 07 19 2450648.5 07 04 40.20 -08 10 39.5 45.55 -54.73 0.012652 -.015201 2.78 1.99 108.0 -30.6 31.45 15.45 202.3 1997 07 20 2450649.5 07 05 53.30 -08 32 34.1 45.20 -54.77 0.012556 -.015215 2.79 2.00 108.4 -30.9 31.89 15.55 203.4 1997 07 21 2450650.5 07 07 5.91 -08 54 30.0 44.86 -54.83 0.012460 -.015231 2.80 2.02 108.8 -31.2 32.33 15.64 204.4 1997 07 22 2450651.5 07 08 18.04 -09 16 27.4 44.51 -54.89 0.012364 -.015248 2.81 2.03 109.2 -31.5 32.77 15.74 205.4 1997 07 23 2450652.5 07 09 29.68 -09 38 26.5 44.17 -54.96 0.012269 -.015267 2.81 2.04 109.6 -31.9 33.23 15.83 206.4 1997 07 24 2450653.5 07 10 40.84 -10 00 27.3 43.82 -55.03 0.012173 -.015287 2.82 2.05 110.0 -32.2 33.68 15.93 207.4 1997 07 25 2450654.5 07 11 51.51 -10 22 30.0 43.47 -55.11 0.012076 -.015309 2.83 2.07 110.4 -32.5 34.14 16.02 208.3 1997 07 26 2450655.5 07 13 1.70 -10 44 34.8 43.13 -55.20 0.011980 -.015333 2.83 2.08 110.8 -32.8 34.60 16.11 209.3 1997 07 27 2450656.5 07 14 11.41 -11 06 41.8 42.78 -55.29 0.011883 -.015359 2.84 2.09 111.2 -33.2 35.07 16.21 210.2 1997 07 28 2450657.5 07 15 20.64 -11 28 51.2 42.43 -55.39 0.011785 -.015386 2.85 2.10 111.6 -33.5 35.54 16.30 211.1 1997 07 29 2450658.5 07 16 29.37 -11 51 3.0 42.07 -55.49 0.011687 -.015414 2.85 2.12 112.0 -33.8 36.02 16.39 212.0 1997 07 30 2450659.5 07 17 37.61 -12 13 17.3 41.71 -55.60 0.011587 -.015444 2.86 2.13 112.4 -34.1 36.49 16.48 212.9 1997 07 31 2450660.5 07 18 45.36 -12 35 34.4 41.35 -55.71 0.011487 -.015475 2.86 2.14 112.8 -34.4 36.98 16.57 213.7 Explanation of Symbols: J.D.= Julian Date (Universal Time) R.A. and Dec. Right Ascension and Declination referred to the Mean Equator and Equinox of J2000. Delta= Topocentric distance of object in A.U. R= Heliocentric distance of object in A.U. Tlong, Tlat = Topocentric Ecliptic Longitude and Latitude of object (1950.0), Theta= Sun-Earth-Object angle in degrees Beta= Sun-Object-Earth angle in degrees Tail = Position Angle (East of North) of extended heliocentric radius vector, in degrees These ephemerides were produced using EPH/Z, originally written at ESO (algorithms from JPL, US Naval Obs., J.Meeus andother sources), using orbital elements provided by the Minor Planet Center.