63P/Wild 1
メタデータ
| 項目 | 値 |
|---|---|
| Designation | 63P/Wild 1 |
| Type | P |
| Perihelion (tp_cal, UTC) | 2013-04-10T23:59:12.488640Z |
| Orbit solution date (soln_date, UTC) | 2026-05-11T09:02:12Z |
| Obs used | 2569 |
| NEO | - |
| M1 | 7.300 |
| 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) | 2015-07-26.0000000 |
| e | 0.65109894 |
| q (au) | 1.951378 |
| a (au) | 5.592925 |
| i (deg) | 19.783064 |
| Ω (om, deg) | 357.976352 |
| ω (w, deg) | 169.097457 |
| M (ma, deg) | 62.294847 |
等級
散乱 + 全体線形
$$ M_a = (9.690 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$
モデル定数
| 項目 | 値 |
|---|---|
| H0 | 9.690 |
| n | 6.000 |
| gf | 1.000 |
| gb | -0.500 |
| 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 | 2026-03-09 | +43.5755 | -15.034 |
| 2026-03-09 | 2026-05-18 | +6.8585 | -2.090 |
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) |
|---|---|---|---|---|
| 2026-05-12 00:00 | 08:02:22.38 | +31:01:17.1 | HIP 39259 | 12.50 |
| 2026-05-12 12:00 | 08:03:24.81 | +30:53:51.1 | HIP 39459 | 20.57 |
| 2026-05-13 00:00 | 08:04:27.31 | +30:46:23.8 | HIP 39459 | 13.81 |
| 2026-05-13 12:00 | 08:05:29.89 | +30:38:55.2 | HIP 39459 | 20.77 |
| 2026-05-14 00:00 | 08:06:32.53 | +30:31:25.4 | HIP 39792 | 17.79 |
| 2026-05-14 12:00 | 08:07:35.24 | +30:23:54.2 | HIP 39792 | 4.20 |
| 2026-05-15 00:00 | 08:08:38.02 | +30:16:21.8 | HIP 39939 | 10.68 |
| 2026-05-15 12:00 | 08:09:40.86 | +30:08:48.1 | HIP 39939 | 12.35 |
| 2026-05-16 00:00 | 08:10:43.76 | +30:01:13.1 | HIP 39939 | 25.99 |
| 2026-05-16 12:00 | 08:11:46.72 | +29:53:36.8 | HIP 40240 | 22.80 |
| 2026-05-17 00:00 | 08:12:49.73 | +29:45:59.2 | HIP 40240 | 7.79 |
| 2026-05-17 12:00 | 08:13:52.81 | +29:38:20.4 | HIP 40240 | 9.60 |
| 2026-05-18 00:00 | 08:14:55.93 | +29:30:40.2 | HIP 40484 | 15.84 |
| 2026-05-18 12:00 | 08:15:59.11 | +29:22:58.8 | HIP 40484 | 15.67 |
| 2026-05-19 00:00 | 08:17:02.34 | +29:15:16.0 | HIP 40676 | 18.95 |
| 2026-05-19 12:00 | 08:18:05.62 | +29:07:32.0 | HIP 40676 | 3.40 |
| 2026-05-20 00:00 | 08:19:08.95 | +28:59:46.7 | HIP 40676 | 12.88 |
| 2026-05-20 12:00 | 08:20:12.32 | +28:52:00.1 | HIP 40960 | 18.09 |
| 2026-05-21 00:00 | 08:21:15.73 | +28:44:12.2 | HIP 40960 | 6.28 |
| 2026-05-21 12:00 | 08:22:19.18 | +28:36:23.0 | HIP 40960 | 16.12 |
| 2026-05-22 00:00 | 08:23:22.67 | +28:28:32.5 | HIP 41187 | 20.42 |
| 2026-05-22 12:00 | 08:24:26.20 | +28:20:40.8 | HIP 41187 | 24.46 |
| 2026-05-23 00:00 | 08:25:29.76 | +28:12:47.8 | HIP 41394 | 18.08 |
| 2026-05-23 12:00 | 08:26:33.36 | +28:04:53.5 | HIP 41394 | 1.99 |
| 2026-05-24 00:00 | 08:27:36.99 | +27:56:57.9 | HIP 41394 | 14.14 |
| 2026-05-24 12:00 | 08:28:40.64 | +27:49:01.1 | HIP 41487 | 20.50 |
| 2026-05-25 00:00 | 08:29:44.33 | +27:41:03.0 | HIP 41700 | 24.50 |
| 2026-05-25 12:00 | 08:30:48.04 | +27:33:03.6 | HIP 41700 | 32.92 |
| 2026-05-26 00:00 | 08:31:51.78 | +27:25:03.0 | HIP 41999 | 23.99 |
| 2026-05-26 12:00 | 08:32:55.55 | +27:17:01.1 | HIP 41999 | 10.14 |
| 2026-05-27 00:00 | 08:33:59.33 | +27:08:57.9 | HIP 41999 | 12.65 |
| 2026-05-27 12:00 | 08:35:03.14 | +27:00:53.5 | HIP 41999 | 27.39 |
| 2026-05-28 00:00 | 08:36:06.97 | +26:52:47.8 | HIP 41999 | 43.32 |
| 2026-05-28 12:00 | 08:37:10.82 | +26:44:40.9 | HIP 42326 | 31.46 |
| 2026-05-29 00:00 | 08:38:14.68 | +26:36:32.7 | HIP 42326 | 23.16 |
| 2026-05-29 12:00 | 08:39:18.56 | +26:28:23.2 | HIP 42326 | 24.98 |
| 2026-05-30 00:00 | 08:40:22.46 | +26:20:12.5 | HIP 42356 | 34.63 |
| 2026-05-30 12:00 | 08:41:26.37 | +26:12:00.6 | HIP 42746 | 19.19 |
| 2026-05-31 00:00 | 08:42:30.29 | +26:03:47.4 | HIP 42746 | 2.82 |
| 2026-05-31 12:00 | 08:43:34.23 | +25:55:33.0 | HIP 42891 | 13.39 |
| 2026-06-01 00:00 | 08:44:38.17 | +25:47:17.4 | HIP 42891 | 14.61 |
| 2026-06-01 12:00 | 08:45:42.13 | +25:39:00.5 | HIP 43111 | 18.42 |
| 2026-06-02 00:00 | 08:46:46.10 | +25:30:42.4 | HIP 43111 | 2.38 |