C/2010 X1 (Elenin)
메타데이터
| 항목 | 값 |
|---|---|
| Designation | C/2010 X1 (Elenin) |
| Type | C |
| Perihelion (tp_cal, UTC) | 2011-09-10T17:16:26.166720Z |
| Orbit solution date (soln_date, UTC) | 2021-04-15T23:31:47Z |
| Obs used | 2235 |
| NEO | - |
| M1 | 12.600 |
| K1 | 6.250 |
| PC | - |
Osculating 궤도요소
| 항목 | 값 |
|---|---|
| Epoch (epoch_cal, TDB) | 2011-03-31.0000000 |
| e | 1.00006725 |
| q (au) | 0.482421 |
| a (au) | -7173.388485 |
| i (deg) | 1.839568 |
| Ω (om, deg) | 323.235147 |
| ω (w, deg) | 343.798118 |
| M (ma, deg) | -0.000266 |
밝기
산란 + 전체 선형
$$ M_a = (12.212 + 2.745\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$
모델 상수
| 항목 | 값 |
|---|---|
| H0 | 12.212 |
| n | 2.745 |
| gf | 0.800 |
| gb | -0.772 |
| k | 0.993 |
| 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 |
|---|---|---|---|
| 2010-12-10 | 2011-07-01 | +1.4907 | -0.743 |
| 2011-07-01 | 2011-08-03 | +16.9717 | -4.126 |
| 2011-08-03 | 2011-09-07 | -9.5074 | -4.344 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) | RA (J2000) | Dec (J2000) | Nearest HIP | Dist from HIP (arcmin) |
|---|---|---|---|---|
| 2026-06-01 00:00 | 07:34:32.73 | +22:34:05.4 | HIP 36853 | 13.89 |
| 2026-06-01 12:00 | 07:34:35.57 | +22:33:58.4 | HIP 36853 | 13.72 |
| 2026-06-02 00:00 | 07:34:38.43 | +22:33:51.5 | HIP 36853 | 13.59 |
| 2026-06-02 12:00 | 07:34:41.30 | +22:33:44.5 | HIP 36853 | 13.48 |
| 2026-06-03 00:00 | 07:34:44.19 | +22:33:37.4 | HIP 36853 | 13.41 |
| 2026-06-03 12:00 | 07:34:47.11 | +22:33:30.3 | HIP 36853 | 13.37 |
| 2026-06-04 00:00 | 07:34:50.04 | +22:33:23.2 | HIP 36853 | 13.36 |
| 2026-06-04 12:00 | 07:34:52.98 | +22:33:16.0 | HIP 36853 | 13.39 |
| 2026-06-05 00:00 | 07:34:55.95 | +22:33:08.8 | HIP 36853 | 13.46 |
| 2026-06-05 12:00 | 07:34:58.94 | +22:33:01.6 | HIP 36853 | 13.56 |
| 2026-06-06 00:00 | 07:35:01.94 | +22:32:54.3 | HIP 36853 | 13.70 |
| 2026-06-06 12:00 | 07:35:04.95 | +22:32:47.0 | HIP 36853 | 13.87 |
| 2026-06-07 00:00 | 07:35:07.99 | +22:32:39.6 | HIP 36853 | 14.08 |
| 2026-06-07 12:00 | 07:35:11.04 | +22:32:32.3 | HIP 36853 | 14.33 |
| 2026-06-08 00:00 | 07:35:14.11 | +22:32:24.8 | HIP 36853 | 14.60 |
| 2026-06-08 12:00 | 07:35:17.20 | +22:32:17.4 | HIP 36853 | 14.91 |
| 2026-06-09 00:00 | 07:35:20.30 | +22:32:09.9 | HIP 36853 | 15.25 |
| 2026-06-09 12:00 | 07:35:23.42 | +22:32:02.4 | HIP 36853 | 15.61 |
| 2026-06-10 00:00 | 07:35:26.55 | +22:31:54.8 | HIP 36853 | 16.01 |
| 2026-06-10 12:00 | 07:35:29.70 | +22:31:47.2 | HIP 36853 | 16.43 |
| 2026-06-11 00:00 | 07:35:32.87 | +22:31:39.6 | HIP 36853 | 16.87 |
| 2026-06-11 12:00 | 07:35:36.05 | +22:31:31.9 | HIP 36853 | 17.34 |
| 2026-06-12 00:00 | 07:35:39.24 | +22:31:24.2 | HIP 36853 | 17.82 |
| 2026-06-12 12:00 | 07:35:42.46 | +22:31:16.5 | HIP 36853 | 18.33 |
| 2026-06-13 00:00 | 07:35:45.68 | +22:31:08.7 | HIP 36853 | 18.86 |
| 2026-06-13 12:00 | 07:35:48.92 | +22:31:00.9 | HIP 36853 | 19.40 |
| 2026-06-14 00:00 | 07:35:52.17 | +22:30:53.1 | HIP 36853 | 19.96 |
| 2026-06-14 12:00 | 07:35:55.44 | +22:30:45.3 | HIP 36853 | 20.54 |
| 2026-06-15 00:00 | 07:35:58.72 | +22:30:37.4 | HIP 36853 | 21.13 |
| 2026-06-15 12:00 | 07:36:02.02 | +22:30:29.5 | HIP 36853 | 21.74 |
| 2026-06-16 00:00 | 07:36:05.33 | +22:30:21.5 | HIP 36853 | 22.36 |
| 2026-06-16 12:00 | 07:36:08.65 | +22:30:13.6 | HIP 36853 | 22.99 |
| 2026-06-17 00:00 | 07:36:11.98 | +22:30:05.6 | HIP 37121 | 22.56 |
| 2026-06-17 12:00 | 07:36:15.33 | +22:29:57.6 | HIP 37121 | 21.81 |
| 2026-06-18 00:00 | 07:36:18.69 | +22:29:49.5 | HIP 37121 | 21.05 |
| 2026-06-18 12:00 | 07:36:22.06 | +22:29:41.4 | HIP 37121 | 20.30 |
| 2026-06-19 00:00 | 07:36:25.44 | +22:29:33.3 | HIP 37121 | 19.54 |
| 2026-06-19 12:00 | 07:36:28.84 | +22:29:25.2 | HIP 37121 | 18.78 |
| 2026-06-20 00:00 | 07:36:32.24 | +22:29:17.1 | HIP 37121 | 18.03 |
| 2026-06-20 12:00 | 07:36:35.66 | +22:29:08.9 | HIP 37121 | 17.28 |
| 2026-06-21 00:00 | 07:36:39.09 | +22:29:00.7 | HIP 37121 | 16.53 |
| 2026-06-21 12:00 | 07:36:42.53 | +22:28:52.5 | HIP 37121 | 15.78 |
| 2026-06-22 00:00 | 07:36:45.98 | +22:28:44.3 | HIP 37121 | 15.04 |