156P/Russell-LINEAR
메타데이터
| 항목 | 값 |
|---|---|
| Designation | 156P/Russell-LINEAR |
| Type | P |
| Perihelion (tp_cal, UTC) | 2020-11-17T19:49:56.294400Z |
| Orbit solution date (soln_date, UTC) | 2023-05-03T22:44:05Z |
| Obs used | 2317 |
| NEO | - |
| M1 | 12.700 |
| K1 | 9.000 |
| PC | - |
Osculating 궤도요소
| 항목 | 값 |
|---|---|
| Epoch (epoch_cal, TDB) | 2020-03-20.0000000 |
| e | 0.61492390 |
| q (au) | 1.333115 |
| a (au) | 3.461952 |
| i (deg) | 17.263589 |
| Ω (om, deg) | 35.397221 |
| ω (w, deg) | 0.378090 |
| M (ma, deg) | 322.844918 |
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) |
|---|---|---|---|---|
| 2026-05-12 00:00 | 18:52:52.40 | -40:25:02.6 | HIP 92558 | 16.95 |
| 2026-05-12 12:00 | 18:52:45.60 | -40:28:24.5 | HIP 92558 | 14.04 |
| 2026-05-13 00:00 | 18:52:38.38 | -40:31:47.0 | HIP 92558 | 11.45 |
| 2026-05-13 12:00 | 18:52:30.74 | -40:35:09.9 | HIP 92558 | 9.50 |
| 2026-05-14 00:00 | 18:52:22.68 | -40:38:33.4 | HIP 92558 | 8.67 |
| 2026-05-14 12:00 | 18:52:14.19 | -40:41:57.3 | HIP 92558 | 9.33 |
| 2026-05-15 00:00 | 18:52:05.27 | -40:45:21.6 | HIP 92558 | 11.25 |
| 2026-05-15 12:00 | 18:51:55.92 | -40:48:46.3 | HIP 92558 | 13.95 |
| 2026-05-16 00:00 | 18:51:46.15 | -40:52:11.4 | HIP 92490 | 14.52 |
| 2026-05-16 12:00 | 18:51:35.94 | -40:55:36.9 | HIP 92490 | 10.64 |
| 2026-05-17 00:00 | 18:51:25.30 | -40:59:02.7 | HIP 92490 | 6.76 |
| 2026-05-17 12:00 | 18:51:14.22 | -41:02:28.7 | HIP 92490 | 3.04 |
| 2026-05-18 00:00 | 18:51:02.72 | -41:05:55.1 | HIP 92490 | 2.25 |
| 2026-05-18 12:00 | 18:50:50.77 | -41:09:21.6 | HIP 92487 | 5.79 |
| 2026-05-19 00:00 | 18:50:38.39 | -41:12:48.4 | HIP 92487 | 9.82 |
| 2026-05-19 12:00 | 18:50:25.57 | -41:16:15.3 | HIP 92487 | 13.96 |
| 2026-05-20 00:00 | 18:50:12.32 | -41:19:42.4 | HIP 92310 | 15.21 |
| 2026-05-20 12:00 | 18:49:58.63 | -41:23:09.6 | HIP 92310 | 12.96 |
| 2026-05-21 00:00 | 18:49:44.49 | -41:26:36.8 | HIP 92310 | 11.85 |
| 2026-05-21 12:00 | 18:49:29.92 | -41:30:04.1 | HIP 92310 | 12.22 |
| 2026-05-22 00:00 | 18:49:14.91 | -41:33:31.4 | HIP 92310 | 14.02 |
| 2026-05-22 12:00 | 18:48:59.47 | -41:36:58.7 | HIP 92310 | 16.83 |
| 2026-05-23 00:00 | 18:48:43.58 | -41:40:25.9 | HIP 92310 | 20.27 |
| 2026-05-23 12:00 | 18:48:27.25 | -41:43:52.9 | HIP 92310 | 24.09 |
| 2026-05-24 00:00 | 18:48:10.48 | -41:47:19.9 | HIP 92106 | 22.29 |
| 2026-05-24 12:00 | 18:47:53.28 | -41:50:46.7 | HIP 92106 | 18.20 |
| 2026-05-25 00:00 | 18:47:35.63 | -41:54:13.3 | HIP 92106 | 14.42 |
| 2026-05-25 12:00 | 18:47:17.54 | -41:57:39.6 | HIP 92106 | 11.33 |
| 2026-05-26 00:00 | 18:46:59.02 | -42:01:05.6 | HIP 92106 | 9.68 |
| 2026-05-26 12:00 | 18:46:40.05 | -42:04:31.3 | HIP 92106 | 10.28 |
| 2026-05-27 00:00 | 18:46:20.65 | -42:07:56.7 | HIP 92106 | 12.88 |
| 2026-05-27 12:00 | 18:46:00.81 | -42:11:21.6 | HIP 92046 | 14.62 |
| 2026-05-28 00:00 | 18:45:40.53 | -42:14:46.1 | HIP 92046 | 10.77 |
| 2026-05-28 12:00 | 18:45:19.81 | -42:18:10.2 | HIP 92046 | 8.37 |
| 2026-05-29 00:00 | 18:44:58.66 | -42:21:33.7 | HIP 92046 | 8.83 |
| 2026-05-29 12:00 | 18:44:37.07 | -42:24:56.6 | HIP 91947 | 9.70 |
| 2026-05-30 00:00 | 18:44:15.04 | -42:28:18.9 | HIP 91947 | 7.23 |
| 2026-05-30 12:00 | 18:43:52.58 | -42:31:40.6 | HIP 91947 | 8.21 |
| 2026-05-31 00:00 | 18:43:29.69 | -42:35:01.6 | HIP 91947 | 11.88 |
| 2026-05-31 12:00 | 18:43:06.37 | -42:38:21.8 | HIP 91947 | 16.59 |
| 2026-06-01 00:00 | 18:42:42.62 | -42:41:41.3 | HIP 91654 | 15.22 |
| 2026-06-01 12:00 | 18:42:18.44 | -42:45:00.0 | HIP 91654 | 13.25 |
| 2026-06-02 00:00 | 18:41:53.83 | -42:48:17.7 | HIP 91654 | 13.40 |