C/1995 O1 (Hale-Bopp)
메타데이터
| 항목 | 값 |
|---|---|
| Designation | C/1995 O1 (Hale-Bopp) |
| Type | C |
| Perihelion (tp_cal, UTC) | 1997-03-29T15:14:15.973440Z |
| Orbit solution date (soln_date, UTC) | 2022-08-01T01:56:46Z |
| Obs used | 66 |
| NEO | - |
| M1 | 4.800 |
| K1 | 4.000 |
| PC | - |
Osculating 궤도요소
| 항목 | 값 |
|---|---|
| Epoch (epoch_cal, TDB) | 2022-09-15.0000000 |
| e | 0.99498100 |
| q (au) | 0.890538 |
| a (au) | 177.433384 |
| i (deg) | 89.287594 |
| Ω (om, deg) | 282.733421 |
| ω (w, deg) | 130.414667 |
| M (ma, deg) | 3.878386 |
밝기
산란 + 전체 선형
$$ M_a = (-1.381 + 3.910\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$
모델 상수
| 항목 | 값 |
|---|---|
| H0 | -1.381 |
| n | 3.910 |
| gf | 1.000 |
| gb | -0.775 |
| k | 0.992 |
| δ90 | 10.000 |
| 파라미터 | 기호 | 범위 | 설명 |
|---|---|---|---|
| 태양·지구거리 1 AU에서의 절대등급 | H0 | -5 to 20 | 혜성의 고유 밝기 |
| 광도 기울기 파라미터 | n | 2 to 6 | 태양거리 변화에 따른 밝기 변화율 |
| 전방 산란 비대칭 계수 | gf |
0.8 to 1 | 전방 산란의 강도 |
| 후방 산란 비대칭 계수 | gb |
-1 to -0.5 | 후방 산란의 강도 |
| 분할 계수 | k | 0.8 to 1 | 전·후방 산란 기여도 비율 |
| 먼지/가스 밝기 비 | δ90 | 1 to 10 | 코마에서 먼지 산란 대비 가스 방출의 상대 기여 |
참고: EPSC-DPS2025-160
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) | 끝 (UTC) | a | b |
|---|---|---|---|
| 1993-04-27 | 1995-08-09 | +19.4207 | -16.005 |
| 1995-08-09 | 1996-10-19 | +1.1805 | -0.716 |
| 1996-10-19 | 1996-11-12 | -13.6865 | +5.757 |
| 1996-11-12 | 1997-03-29 | +1.5811 | +0.132 |
| 1997-03-29 | 1997-10-14 | +1.1308 | -0.116 |
| 1997-10-14 | 2000-02-13 | -1.1547 | +1.415 |
| 2000-02-13 | 2013-08-13 | +6.3194 | -6.343 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) | RA (J2000) | Dec (J2000) | Nearest HIP | Dist from HIP (arcmin) |
|---|---|---|---|---|
| 2026-02-03 00:00 | 22:05:43.51 | -83:30:31.9 | HIP 109415 | 11.70 |
| 2026-02-03 12:00 | 22:06:01.93 | -83:30:18.5 | HIP 109415 | 11.20 |
| 2026-02-04 00:00 | 22:06:20.37 | -83:30:05.4 | HIP 109415 | 10.71 |
| 2026-02-04 12:00 | 22:06:38.84 | -83:29:52.5 | HIP 109415 | 10.22 |
| 2026-02-05 00:00 | 22:06:57.33 | -83:29:39.8 | HIP 109415 | 9.75 |
| 2026-02-05 12:00 | 22:07:15.84 | -83:29:27.4 | HIP 109415 | 9.30 |
| 2026-02-06 00:00 | 22:07:34.38 | -83:29:15.2 | HIP 109415 | 8.86 |
| 2026-02-06 12:00 | 22:07:52.93 | -83:29:03.2 | HIP 109415 | 8.44 |
| 2026-02-07 00:00 | 22:08:11.50 | -83:28:51.5 | HIP 109415 | 8.03 |
| 2026-02-07 12:00 | 22:08:30.09 | -83:28:40.0 | HIP 109415 | 7.66 |
| 2026-02-08 00:00 | 22:08:48.70 | -83:28:28.8 | HIP 109415 | 7.31 |
| 2026-02-08 12:00 | 22:09:07.33 | -83:28:17.8 | HIP 109415 | 6.99 |
| 2026-02-09 00:00 | 22:09:25.97 | -83:28:07.0 | HIP 109415 | 6.71 |
| 2026-02-09 12:00 | 22:09:44.62 | -83:27:56.4 | HIP 109415 | 6.47 |
| 2026-02-10 00:00 | 22:10:03.30 | -83:27:46.1 | HIP 109415 | 6.28 |
| 2026-02-10 12:00 | 22:10:21.98 | -83:27:36.1 | HIP 109415 | 6.13 |
| 2026-02-11 00:00 | 22:10:40.68 | -83:27:26.3 | HIP 109415 | 6.04 |
| 2026-02-11 12:00 | 22:10:59.38 | -83:27:16.7 | HIP 109415 | 6.00 |
| 2026-02-12 00:00 | 22:11:18.10 | -83:27:07.3 | HIP 109415 | 6.02 |
| 2026-02-12 12:00 | 22:11:36.83 | -83:26:58.3 | HIP 109415 | 6.10 |
| 2026-02-13 00:00 | 22:11:55.57 | -83:26:49.4 | HIP 109415 | 6.23 |
| 2026-02-13 12:00 | 22:12:14.32 | -83:26:40.8 | HIP 109415 | 6.41 |
| 2026-02-14 00:00 | 22:12:33.07 | -83:26:32.4 | HIP 109415 | 6.63 |
| 2026-02-14 12:00 | 22:12:51.83 | -83:26:24.3 | HIP 109415 | 6.90 |
| 2026-02-15 00:00 | 22:13:10.60 | -83:26:16.5 | HIP 109415 | 7.20 |
| 2026-02-15 12:00 | 22:13:29.37 | -83:26:08.8 | HIP 109415 | 7.53 |
| 2026-02-16 00:00 | 22:13:48.14 | -83:26:01.5 | HIP 109415 | 7.89 |
| 2026-02-16 12:00 | 22:14:06.92 | -83:25:54.3 | HIP 109415 | 8.28 |
| 2026-02-17 00:00 | 22:14:25.70 | -83:25:47.5 | HIP 109415 | 8.68 |
| 2026-02-17 12:00 | 22:14:44.48 | -83:25:40.8 | HIP 109415 | 9.10 |
| 2026-02-18 00:00 | 22:15:03.26 | -83:25:34.5 | HIP 109415 | 9.54 |
| 2026-02-18 12:00 | 22:15:22.03 | -83:25:28.3 | HIP 109415 | 9.99 |
| 2026-02-19 00:00 | 22:15:40.81 | -83:25:22.4 | HIP 109415 | 10.45 |
| 2026-02-19 12:00 | 22:15:59.59 | -83:25:16.8 | HIP 109415 | 10.93 |
| 2026-02-20 00:00 | 22:16:18.36 | -83:25:11.4 | HIP 109415 | 11.41 |
| 2026-02-20 12:00 | 22:16:37.12 | -83:25:06.3 | HIP 109415 | 11.89 |
| 2026-02-21 00:00 | 22:16:55.88 | -83:25:01.4 | HIP 109415 | 12.39 |
| 2026-02-21 12:00 | 22:17:14.64 | -83:24:56.8 | HIP 109415 | 12.88 |
| 2026-02-22 00:00 | 22:17:33.38 | -83:24:52.4 | HIP 109415 | 13.39 |
| 2026-02-22 12:00 | 22:17:52.12 | -83:24:48.3 | HIP 109415 | 13.90 |
| 2026-02-23 00:00 | 22:18:10.85 | -83:24:44.4 | HIP 109415 | 14.41 |
| 2026-02-23 12:00 | 22:18:29.57 | -83:24:40.8 | HIP 110729 | 14.34 |
| 2026-02-24 00:00 | 22:18:48.28 | -83:24:37.4 | HIP 110729 | 13.89 |