63P/Wild 1
メタデータ
| 項目 | 値 |
|---|---|
| Designation | 63P/Wild 1 |
| Type | P |
| Perihelion (tp_cal, UTC) | 2013-04-10T20:14:05.049600Z |
| Orbit solution date (soln_date, UTC) | 2026-03-31T13:32:37Z |
| Obs used | 2339 |
| NEO | - |
| M1 | 7.200 |
| K1 | 25.000 |
| PC | 0.030 |
オスキュレーティング軌道要素
| 項目 | 値 |
|---|---|
| Epoch (epoch_cal, TDB) | 2014-04-18.0000000 |
| e | 0.65094603 |
| q (au) | 1.950642 |
| a (au) | 5.588367 |
| i (deg) | 19.779998 |
| Ω (om, deg) | 357.999640 |
| ω (w, deg) | 169.036010 |
| M (ma, deg) | 27.765321 |
等級
散乱 + 全体線形
$$ M_a = (10.406 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$
モデル定数
| 項目 | 値 |
|---|---|
| H0 | 10.406 |
| n | 6.000 |
| gf | 1.000 |
| gb | -0.998 |
| k | 1.000 |
| δ90 | 10.000 |
| パラメータ | 記号 | 範囲 | 説明 |
|---|---|---|---|
| 太陽・地球距離が1 AUのときの絶対等級 | H0 | -5 to 20 | 彗星の固有の明るさ |
| 測光スロープパラメータ | n | 2 to 6 | 太陽距離に対する明るさ変化率 |
| 前方散乱非対称係数 | gf |
0.8 to 1 | 前方散乱の強さ |
| 後方散乱非対称係数 | gb |
-1 to -0.5 | 後方散乱の強さ |
| 分配係数 | k | 0.8 to 1 | 前方/後方散乱の寄与比 |
| ダスト/ガス明るさ比 | δ90 | 1 to 10 | ダスト散乱とガス放射の相対寄与 |
参考: EPSC-DPS2025-160
残差 (区間線形)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 開始日 (UTC) | 終了日 (UTC) | a | b |
|---|---|---|---|
| 2025-10-24 | 2026-01-08 | -0.0189 | -0.224 |
| 2026-01-08 | 2026-03-19 | +14.6511 | -6.154 |
log10 r = log10(太陽距離/AU)、Δ = 地球距離(AU)
ファインディングチャート
天体暦
| Date/Time (UTC) | RA (J2000) | Dec (J2000) | Nearest HIP | Dist from HIP (arcmin) |
|---|---|---|---|---|
| 2026-03-26 00:00 | 06:35:35.51 | +41:21:16.9 | HIP 31391 | 22.34 |
| 2026-03-26 12:00 | 06:36:19.60 | +41:15:16.6 | HIP 31687 | 16.32 |
| 2026-03-27 00:00 | 06:37:04.05 | +41:09:15.8 | HIP 31687 | 10.97 |
| 2026-03-27 12:00 | 06:37:48.84 | +41:03:14.5 | HIP 31687 | 13.65 |
| 2026-03-28 00:00 | 06:38:33.98 | +40:57:12.9 | HIP 31689 | 14.38 |
| 2026-03-28 12:00 | 06:39:19.46 | +40:51:10.7 | HIP 31928 | 13.62 |
| 2026-03-29 00:00 | 06:40:05.27 | +40:45:08.1 | HIP 31928 | 13.39 |
| 2026-03-29 12:00 | 06:40:51.42 | +40:39:05.1 | HIP 31928 | 19.93 |
| 2026-03-30 00:00 | 06:41:37.90 | +40:33:01.5 | HIP 31956 | 25.23 |
| 2026-03-30 12:00 | 06:42:24.70 | +40:26:57.5 | HIP 32275 | 23.82 |
| 2026-03-31 00:00 | 06:43:11.81 | +40:20:52.9 | HIP 32275 | 20.70 |
| 2026-03-31 12:00 | 06:43:59.25 | +40:14:47.9 | HIP 32211 | 18.37 |
| 2026-04-01 00:00 | 06:44:46.99 | +40:08:42.3 | HIP 32211 | 19.23 |
| 2026-04-01 12:00 | 06:45:35.04 | +40:02:36.1 | HIP 32486 | 18.03 |
| 2026-04-02 00:00 | 06:46:23.39 | +39:56:29.4 | HIP 32486 | 18.36 |
| 2026-04-02 12:00 | 06:47:12.04 | +39:50:22.2 | HIP 32486 | 24.41 |
| 2026-04-03 00:00 | 06:48:00.99 | +39:44:14.3 | HIP 32757 | 26.09 |
| 2026-04-03 12:00 | 06:48:50.23 | +39:38:05.9 | HIP 32757 | 14.84 |
| 2026-04-04 00:00 | 06:49:39.76 | +39:31:56.8 | HIP 32757 | 3.76 |
| 2026-04-04 12:00 | 06:50:29.57 | +39:25:47.2 | HIP 32757 | 8.19 |
| 2026-04-05 00:00 | 06:51:19.66 | +39:19:36.9 | HIP 32757 | 19.58 |
| 2026-04-05 12:00 | 06:52:10.03 | +39:13:26.0 | HIP 33120 | 20.23 |
| 2026-04-06 00:00 | 06:53:00.68 | +39:07:14.4 | HIP 33120 | 10.58 |
| 2026-04-06 12:00 | 06:53:51.59 | +39:01:02.2 | HIP 33120 | 9.15 |
| 2026-04-07 00:00 | 06:54:42.77 | +38:54:49.3 | HIP 33120 | 18.14 |
| 2026-04-07 12:00 | 06:55:34.21 | +38:48:35.7 | HIP 33479 | 23.54 |
| 2026-04-08 00:00 | 06:56:25.92 | +38:42:21.4 | HIP 33479 | 14.20 |
| 2026-04-08 12:00 | 06:57:17.88 | +38:36:06.4 | HIP 33479 | 11.36 |
| 2026-04-09 00:00 | 06:58:10.09 | +38:29:50.7 | HIP 33479 | 18.48 |
| 2026-04-09 12:00 | 06:59:02.56 | +38:23:34.2 | HIP 33614 | 20.41 |
| 2026-04-10 00:00 | 06:59:55.27 | +38:17:17.0 | HIP 33614 | 17.48 |
| 2026-04-10 12:00 | 07:00:48.22 | +38:10:59.0 | HIP 33614 | 22.15 |
| 2026-04-11 00:00 | 07:01:41.42 | +38:04:40.2 | HIP 33982 | 16.87 |
| 2026-04-11 12:00 | 07:02:34.85 | +37:58:20.7 | HIP 33982 | 11.81 |
| 2026-04-12 00:00 | 07:03:28.52 | +37:52:00.4 | HIP 33982 | 17.21 |
| 2026-04-12 12:00 | 07:04:22.42 | +37:45:39.2 | HIP 34150 | 5.95 |
| 2026-04-13 00:00 | 07:05:16.55 | +37:39:17.2 | HIP 34150 | 8.41 |
| 2026-04-13 12:00 | 07:06:10.90 | +37:32:54.4 | HIP 34265 | 12.80 |
| 2026-04-14 00:00 | 07:07:05.47 | +37:26:30.8 | HIP 34265 | 12.56 |
| 2026-04-14 12:00 | 07:08:00.27 | +37:20:06.3 | HIP 34462 | 9.73 |
| 2026-04-15 00:00 | 07:08:55.28 | +37:13:40.9 | HIP 34462 | 13.56 |
| 2026-04-15 12:00 | 07:09:50.50 | +37:07:14.7 | HIP 34613 | 10.01 |
| 2026-04-16 00:00 | 07:10:45.93 | +37:00:47.6 | HIP 34613 | 17.50 |