C/1962 C1 (Seki-Lines)
메타데이터
| 항목 | 값 |
|---|---|
| Designation | C/1962 C1 (Seki-Lines) |
| Type | C |
| Perihelion (tp_cal, UTC) | 1962-04-01T15:54:42.880320Z |
| Orbit solution date (soln_date, UTC) | 2021-04-15T23:29:14Z |
| Obs used | 32 |
| NEO | - |
| M1 | - |
| K1 | - |
| PC | 0.030 |
Osculating 궤도요소
| 항목 | 값 |
|---|---|
| Epoch (epoch_cal, TDB) | 1962-05-30.0000000 |
| e | 1.00000446 |
| q (au) | 0.031398 |
| a (au) | -7039.189219 |
| i (deg) | 65.014482 |
| Ω (om, deg) | 304.677692 |
| ω (w, deg) | 11.473294 |
| M (ma, deg) | 0.000097 |
밝기
산란 + 전체 선형
$$ M_a = (5.920 + 3.807\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$
모델 상수
| 항목 | 값 |
|---|---|
| H0 | 5.920 |
| n | 3.807 |
| gf | 0.800 |
| gb | -0.500 |
| k | 0.800 |
| δ90 | 1.000 |
| 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 |
|---|---|---|---|
| 1962-02-07 | 1962-03-27 | -0.1771 | +0.572 |
| 1962-04-03 | 1962-05-02 | -1.0610 | -0.178 |
| 1962-05-02 | 1963-01-25 | +9.7849 | +0.146 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) | RA (J2000) | Dec (J2000) | Nearest HIP | Dist from HIP (arcmin) |
|---|---|---|---|---|
| 2026-09-20 00:00 | 08:37:28.56 | +09:50:56.4 | HIP 42265 | 12.89 |
| 2026-09-20 12:00 | 08:37:29.37 | +09:50:51.0 | HIP 42265 | 12.90 |
| 2026-09-21 00:00 | 08:37:30.16 | +09:50:45.6 | HIP 42265 | 12.91 |
| 2026-09-21 12:00 | 08:37:30.95 | +09:50:40.3 | HIP 42265 | 12.92 |
| 2026-09-22 00:00 | 08:37:31.72 | +09:50:34.9 | HIP 42265 | 12.94 |
| 2026-09-22 12:00 | 08:37:32.49 | +09:50:29.6 | HIP 42265 | 12.95 |
| 2026-09-23 00:00 | 08:37:33.25 | +09:50:24.3 | HIP 42265 | 12.97 |
| 2026-09-23 12:00 | 08:37:34.01 | +09:50:19.0 | HIP 42265 | 13.00 |
| 2026-09-24 00:00 | 08:37:34.75 | +09:50:13.7 | HIP 42265 | 13.02 |
| 2026-09-24 12:00 | 08:37:35.48 | +09:50:08.5 | HIP 42265 | 13.05 |
| 2026-09-25 00:00 | 08:37:36.21 | +09:50:03.2 | HIP 42265 | 13.08 |
| 2026-09-25 12:00 | 08:37:36.93 | +09:49:58.0 | HIP 42265 | 13.11 |
| 2026-09-26 00:00 | 08:37:37.64 | +09:49:52.8 | HIP 42265 | 13.14 |
| 2026-09-26 12:00 | 08:37:38.33 | +09:49:47.6 | HIP 42265 | 13.18 |
| 2026-09-27 00:00 | 08:37:39.02 | +09:49:42.5 | HIP 42265 | 13.22 |
| 2026-09-27 12:00 | 08:37:39.71 | +09:49:37.3 | HIP 42265 | 13.25 |
| 2026-09-28 00:00 | 08:37:40.38 | +09:49:32.2 | HIP 42265 | 13.29 |
| 2026-09-28 12:00 | 08:37:41.04 | +09:49:27.1 | HIP 42265 | 13.33 |
| 2026-09-29 00:00 | 08:37:41.70 | +09:49:22.0 | HIP 42265 | 13.38 |
| 2026-09-29 12:00 | 08:37:42.34 | +09:49:17.0 | HIP 42265 | 13.42 |
| 2026-09-30 00:00 | 08:37:42.98 | +09:49:11.9 | HIP 42265 | 13.46 |
| 2026-09-30 12:00 | 08:37:43.60 | +09:49:06.9 | HIP 42265 | 13.51 |
| 2026-10-01 00:00 | 08:37:44.22 | +09:49:01.9 | HIP 42265 | 13.55 |
| 2026-10-01 12:00 | 08:37:44.83 | +09:48:57.0 | HIP 42265 | 13.60 |
| 2026-10-02 00:00 | 08:37:45.42 | +09:48:52.0 | HIP 42265 | 13.65 |
| 2026-10-02 12:00 | 08:37:46.01 | +09:48:47.1 | HIP 42265 | 13.69 |
| 2026-10-03 00:00 | 08:37:46.59 | +09:48:42.2 | HIP 42265 | 13.74 |
| 2026-10-03 12:00 | 08:37:47.16 | +09:48:37.3 | HIP 42265 | 13.79 |
| 2026-10-04 00:00 | 08:37:47.72 | +09:48:32.5 | HIP 42265 | 13.84 |
| 2026-10-04 12:00 | 08:37:48.27 | +09:48:27.7 | HIP 42265 | 13.89 |
| 2026-10-05 00:00 | 08:37:48.81 | +09:48:22.9 | HIP 42265 | 13.94 |
| 2026-10-05 12:00 | 08:37:49.34 | +09:48:18.1 | HIP 42265 | 13.98 |
| 2026-10-06 00:00 | 08:37:49.86 | +09:48:13.3 | HIP 42265 | 14.03 |
| 2026-10-06 12:00 | 08:37:50.37 | +09:48:08.6 | HIP 42265 | 14.08 |
| 2026-10-07 00:00 | 08:37:50.87 | +09:48:03.9 | HIP 42353 | 14.04 |
| 2026-10-07 12:00 | 08:37:51.36 | +09:47:59.3 | HIP 42353 | 13.93 |
| 2026-10-08 00:00 | 08:37:51.84 | +09:47:54.6 | HIP 42353 | 13.83 |
| 2026-10-08 12:00 | 08:37:52.31 | +09:47:50.0 | HIP 42353 | 13.73 |
| 2026-10-09 00:00 | 08:37:52.77 | +09:47:45.4 | HIP 42353 | 13.63 |
| 2026-10-09 12:00 | 08:37:53.22 | +09:47:40.9 | HIP 42353 | 13.53 |
| 2026-10-10 00:00 | 08:37:53.66 | +09:47:36.4 | HIP 42353 | 13.43 |
| 2026-10-10 12:00 | 08:37:54.09 | +09:47:31.9 | HIP 42353 | 13.34 |
| 2026-10-11 00:00 | 08:37:54.51 | +09:47:27.4 | HIP 42353 | 13.24 |