156P/Russell-LINEAR
메타데이터
| 항목 | 값 |
|---|---|
| Designation | 156P/Russell-LINEAR |
| Type | P |
| Perihelion (tp_cal, UTC) | 2020-11-17T19:50:25.532160Z |
| Orbit solution date (soln_date, UTC) | 2026-07-28T14:33:39Z |
| Obs used | 2333 |
| NEO | - |
| M1 | 12.700 |
| K1 | 9.000 |
| PC | - |
Osculating 궤도요소
| 항목 | 값 |
|---|---|
| Epoch (epoch_cal, TDB) | 2020-03-21.0000000 |
| e | 0.61492244 |
| q (au) | 1.333114 |
| a (au) | 3.461937 |
| i (deg) | 17.263540 |
| Ω (om, deg) | 35.396898 |
| ω (w, deg) | 0.378461 |
| M (ma, deg) | 322.997635 |
밝기
산란 + 전체 선형
$$ M_a = (11.922 + 3.065\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$
모델 상수
| 항목 | 값 |
|---|---|
| H0 | 11.922 |
| n | 3.065 |
| gf | 1.000 |
| gb | -0.500 |
| k | 1.000 |
| 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 |
|---|---|---|---|
| 2020-01-20 | 2020-07-21 | -49.3673 | +17.357 |
| 2020-07-21 | 2020-09-16 | +3.1689 | +2.883 |
| 2020-09-16 | 2020-11-17 | +72.1414 | -9.382 |
| 2020-11-17 | 2021-03-31 | -0.7137 | -0.628 |
| 2021-03-31 | 2022-03-31 | +7.9952 | -3.473 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
찾아보기
천체력
| Date/Time (UTC) | RA (J2000) | Dec (J2000) | Nearest HIP | Dist from HIP (arcmin) |
|---|---|---|---|---|
| 2026-09-25 00:00 | 17:39:37.93 | -40:47:08.2 | HIP 86491 | 19.35 |
| 2026-09-25 12:00 | 17:40:08.46 | -40:45:06.1 | HIP 86491 | 15.17 |
| 2026-09-26 00:00 | 17:40:39.39 | -40:43:04.2 | HIP 86491 | 12.70 |
| 2026-09-26 12:00 | 17:41:10.72 | -40:41:02.5 | HIP 86491 | 13.08 |
| 2026-09-27 00:00 | 17:41:42.43 | -40:39:00.9 | HIP 86491 | 16.18 |
| 2026-09-27 12:00 | 17:42:14.54 | -40:36:59.5 | HIP 86694 | 18.98 |
| 2026-09-28 00:00 | 17:42:47.02 | -40:34:58.2 | HIP 86694 | 15.78 |
| 2026-09-28 12:00 | 17:43:19.90 | -40:32:57.1 | HIP 86694 | 14.93 |
| 2026-09-29 00:00 | 17:43:53.16 | -40:30:56.0 | HIP 86694 | 16.88 |
| 2026-09-29 12:00 | 17:44:26.79 | -40:28:55.1 | HIP 86694 | 20.94 |
| 2026-09-30 00:00 | 17:45:00.81 | -40:26:54.2 | HIP 86810 | 21.88 |
| 2026-09-30 12:00 | 17:45:35.20 | -40:24:53.4 | HIP 86965 | 20.50 |
| 2026-10-01 00:00 | 17:46:09.97 | -40:22:52.7 | HIP 86965 | 20.92 |
| 2026-10-01 12:00 | 17:46:45.11 | -40:20:52.1 | HIP 87073 | 16.32 |
| 2026-10-02 00:00 | 17:47:20.63 | -40:18:51.5 | HIP 87073 | 11.57 |
| 2026-10-02 12:00 | 17:47:56.51 | -40:16:50.9 | HIP 87073 | 10.10 |
| 2026-10-03 00:00 | 17:48:32.76 | -40:14:50.3 | HIP 87195 | 4.76 |
| 2026-10-03 12:00 | 17:49:09.38 | -40:12:49.7 | HIP 87195 | 6.24 |
| 2026-10-04 00:00 | 17:49:46.36 | -40:10:49.2 | HIP 87294 | 7.17 |
| 2026-10-04 12:00 | 17:50:23.71 | -40:08:48.6 | HIP 87294 | 4.15 |
| 2026-10-05 00:00 | 17:51:01.41 | -40:06:47.9 | HIP 87294 | 9.72 |
| 2026-10-05 12:00 | 17:51:39.48 | -40:04:47.2 | HIP 87294 | 16.91 |
| 2026-10-06 00:00 | 17:52:17.91 | -40:02:46.5 | HIP 87294 | 24.40 |
| 2026-10-06 12:00 | 17:52:56.69 | -40:00:45.7 | HIP 87688 | 24.25 |
| 2026-10-07 00:00 | 17:53:35.82 | -39:58:44.8 | HIP 87688 | 20.36 |
| 2026-10-07 12:00 | 17:54:15.31 | -39:56:43.7 | HIP 87688 | 18.98 |
| 2026-10-08 00:00 | 17:54:55.15 | -39:54:42.6 | HIP 87688 | 20.71 |
| 2026-10-08 12:00 | 17:55:35.34 | -39:52:41.3 | HIP 87854 | 14.85 |
| 2026-10-09 00:00 | 17:56:15.87 | -39:50:39.9 | HIP 87854 | 8.55 |
| 2026-10-09 12:00 | 17:56:56.75 | -39:48:38.3 | HIP 87854 | 7.41 |
| 2026-10-10 00:00 | 17:57:37.98 | -39:46:36.6 | HIP 87854 | 13.01 |
| 2026-10-10 12:00 | 17:58:19.54 | -39:44:34.7 | HIP 87854 | 20.48 |
| 2026-10-11 00:00 | 17:59:01.44 | -39:42:32.5 | HIP 87854 | 28.44 |
| 2026-10-11 12:00 | 17:59:43.68 | -39:40:30.2 | HIP 88154 | 26.41 |
| 2026-10-12 00:00 | 18:00:26.26 | -39:38:27.6 | HIP 88154 | 23.55 |
| 2026-10-12 12:00 | 18:01:09.16 | -39:36:24.8 | HIP 88154 | 23.58 |
| 2026-10-13 00:00 | 18:01:52.40 | -39:34:21.7 | HIP 88458 | 22.88 |
| 2026-10-13 12:00 | 18:02:35.97 | -39:32:18.3 | HIP 88458 | 14.54 |
| 2026-10-14 00:00 | 18:03:19.86 | -39:30:14.6 | HIP 88458 | 6.98 |
| 2026-10-14 12:00 | 18:04:04.08 | -39:28:10.7 | HIP 88500 | 5.92 |
| 2026-10-15 00:00 | 18:04:48.62 | -39:26:06.4 | HIP 88500 | 6.80 |
| 2026-10-15 12:00 | 18:05:33.48 | -39:24:01.7 | HIP 88584 | 5.39 |
| 2026-10-16 00:00 | 18:06:18.66 | -39:21:56.7 | HIP 88584 | 12.92 |