メタデータ
| 項目 |
値 |
| Designation |
114P/Wiseman-Skiff |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2020-01-14T04:17:00.810240Z |
| Orbit solution date (soln_date, UTC) |
2026-09-21T09:58:42Z |
| Obs used |
1931 |
| NEO |
- |
| M1 |
13.800 |
| K1 |
12.750 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2018-08-25.0000000 |
| e |
0.55451765 |
| q (au) |
1.579450 |
| a (au) |
3.545483 |
| i (deg) |
18.272413 |
| Ω (om, deg) |
271.060843 |
| ω (w, deg) |
172.834150 |
| M (ma, deg) |
285.122420 |
等級
散乱 + 全体線形
$$
M_a = (12.604 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
12.604 |
| n |
6.000 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
0.973 |
| δ90 |
1.000 |
| 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
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) |
| 2026-09-20 00:00 |
08:08:10.21 |
+21:15:54.8 |
HIP 39826 |
9.59 |
| 2026-09-20 12:00 |
08:09:32.55 |
+21:06:48.4 |
HIP 39826 |
18.47 |
| 2026-09-21 00:00 |
08:10:54.62 |
+20:57:39.1 |
HIP 40054 |
10.91 |
| 2026-09-21 12:00 |
08:12:16.40 |
+20:48:26.9 |
HIP 40054 |
19.39 |
| 2026-09-22 00:00 |
08:13:37.91 |
+20:39:11.7 |
HIP 40361 |
11.95 |
| 2026-09-22 12:00 |
08:14:59.13 |
+20:29:53.7 |
HIP 40399 |
12.90 |
| 2026-09-23 00:00 |
08:16:20.08 |
+20:20:32.9 |
HIP 40399 |
20.96 |
| 2026-09-23 12:00 |
08:17:40.75 |
+20:11:09.3 |
HIP 40644 |
21.14 |
| 2026-09-24 00:00 |
08:19:01.13 |
+20:01:42.9 |
HIP 40832 |
17.48 |
| 2026-09-24 12:00 |
08:20:21.24 |
+19:52:13.7 |
HIP 40832 |
5.10 |
| 2026-09-25 00:00 |
08:21:41.06 |
+19:42:41.9 |
HIP 41002 |
15.80 |
| 2026-09-25 12:00 |
08:23:00.61 |
+19:33:07.4 |
HIP 41115 |
16.43 |
| 2026-09-26 00:00 |
08:24:19.87 |
+19:23:30.3 |
HIP 41233 |
15.03 |
| 2026-09-26 12:00 |
08:25:38.85 |
+19:13:50.5 |
HIP 41233 |
12.16 |
| 2026-09-27 00:00 |
08:26:57.54 |
+19:04:08.2 |
HIP 41440 |
11.23 |
| 2026-09-27 12:00 |
08:28:15.95 |
+18:54:23.3 |
HIP 41440 |
26.75 |
| 2026-09-28 00:00 |
08:29:34.08 |
+18:44:35.9 |
HIP 41727 |
18.03 |
| 2026-09-28 12:00 |
08:30:51.92 |
+18:34:46.1 |
HIP 41727 |
22.37 |
| 2026-09-29 00:00 |
08:32:09.48 |
+18:24:53.8 |
HIP 41788 |
20.63 |
| 2026-09-29 12:00 |
08:33:26.76 |
+18:14:59.1 |
HIP 42058 |
16.09 |
| 2026-09-30 00:00 |
08:34:43.75 |
+18:05:02.0 |
HIP 42058 |
19.44 |
| 2026-09-30 12:00 |
08:36:00.45 |
+17:55:02.6 |
HIP 42005 |
36.83 |
| 2026-10-01 00:00 |
08:37:16.87 |
+17:45:00.8 |
HIP 42277 |
29.78 |
| 2026-10-01 12:00 |
08:38:33.00 |
+17:34:56.8 |
HIP 42471 |
15.29 |
| 2026-10-02 00:00 |
08:39:48.84 |
+17:24:50.5 |
HIP 42471 |
5.65 |
| 2026-10-02 12:00 |
08:41:04.39 |
+17:14:42.1 |
HIP 42471 |
26.21 |
| 2026-10-03 00:00 |
08:42:19.66 |
+17:04:31.4 |
HIP 42764 |
8.57 |
| 2026-10-03 12:00 |
08:43:34.63 |
+16:54:18.6 |
HIP 42814 |
2.27 |
| 2026-10-04 00:00 |
08:44:49.31 |
+16:44:03.7 |
HIP 42968 |
15.80 |
| 2026-10-04 12:00 |
08:46:03.71 |
+16:33:46.7 |
HIP 42968 |
24.45 |
| 2026-10-05 00:00 |
08:47:17.81 |
+16:23:27.7 |
HIP 43058 |
25.44 |
| 2026-10-05 12:00 |
08:48:31.62 |
+16:13:06.6 |
HIP 43217 |
29.72 |
| 2026-10-06 00:00 |
08:49:45.13 |
+16:02:43.6 |
HIP 43448 |
19.41 |
| 2026-10-06 12:00 |
08:50:58.35 |
+15:52:18.7 |
HIP 43448 |
1.78 |
| 2026-10-07 00:00 |
08:52:11.28 |
+15:41:51.8 |
HIP 43448 |
21.56 |
| 2026-10-07 12:00 |
08:53:23.91 |
+15:31:23.1 |
HIP 43742 |
19.18 |
| 2026-10-08 00:00 |
08:54:36.24 |
+15:20:52.6 |
HIP 43742 |
20.06 |
| 2026-10-08 12:00 |
08:55:48.28 |
+15:10:20.2 |
HIP 43970 |
22.76 |
| 2026-10-09 00:00 |
08:57:00.02 |
+14:59:46.1 |
HIP 43970 |
19.92 |
| 2026-10-09 12:00 |
08:58:11.47 |
+14:49:10.3 |
HIP 44174 |
31.28 |
| 2026-10-10 00:00 |
08:59:22.61 |
+14:38:32.7 |
HIP 44082 |
26.29 |
| 2026-10-10 12:00 |
09:00:33.46 |
+14:27:53.5 |
HIP 44361 |
22.98 |
| 2026-10-11 00:00 |
09:01:44.01 |
+14:17:12.6 |
HIP 44361 |
19.23 |