メタデータ
| 項目 |
値 |
| Designation |
460P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-03-15T12:24:18.552960Z |
| Orbit solution date (soln_date, UTC) |
2023-04-26T18:45:19Z |
| Obs used |
160 |
| NEO |
Yes |
| M1 |
20.900 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2020-10-17T12:28:19.574400Z |
| Discovery magnitude (MPC) |
22.64 G |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2016-04-17.0000000 |
| e |
0.66625296 |
| q (au) |
1.008577 |
| a (au) |
3.021981 |
| i (deg) |
18.918673 |
| Ω (om, deg) |
180.533681 |
| ω (w, deg) |
351.896723 |
| M (ma, deg) |
6.094305 |
等級
散乱 + 全体線形
$$
M_a = (19.928 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
19.928 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.826 |
| k |
0.991 |
| 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
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) |
| 2026-06-01 00:00 |
05:03:14.45 |
+10:56:51.6 |
HIP 23485 |
5.39 |
| 2026-06-01 12:00 |
05:04:29.12 |
+10:58:57.5 |
HIP 23544 |
12.82 |
| 2026-06-02 00:00 |
05:05:44.06 |
+11:01:01.7 |
HIP 23770 |
25.31 |
| 2026-06-02 12:00 |
05:06:59.27 |
+11:03:04.4 |
HIP 23866 |
14.85 |
| 2026-06-03 00:00 |
05:08:14.74 |
+11:05:05.3 |
HIP 23866 |
13.37 |
| 2026-06-03 12:00 |
05:09:30.49 |
+11:07:04.6 |
HIP 24032 |
15.25 |
| 2026-06-04 00:00 |
05:10:46.51 |
+11:09:02.3 |
HIP 24032 |
19.36 |
| 2026-06-04 12:00 |
05:12:02.79 |
+11:10:58.2 |
HIP 24249 |
11.63 |
| 2026-06-05 00:00 |
05:13:19.36 |
+11:12:52.4 |
HIP 24249 |
16.98 |
| 2026-06-05 12:00 |
05:14:36.19 |
+11:14:44.9 |
HIP 24416 |
15.12 |
| 2026-06-06 00:00 |
05:15:53.30 |
+11:16:35.6 |
HIP 24555 |
4.71 |
| 2026-06-06 12:00 |
05:17:10.69 |
+11:18:24.5 |
HIP 24555 |
16.44 |
| 2026-06-07 00:00 |
05:18:28.35 |
+11:20:11.7 |
HIP 24657 |
27.75 |
| 2026-06-07 12:00 |
05:19:46.29 |
+11:21:57.0 |
HIP 24923 |
17.50 |
| 2026-06-08 00:00 |
05:21:04.51 |
+11:23:40.6 |
HIP 24923 |
16.08 |
| 2026-06-08 12:00 |
05:22:23.01 |
+11:25:22.2 |
HIP 25155 |
8.97 |
| 2026-06-09 00:00 |
05:23:41.80 |
+11:27:02.1 |
HIP 25155 |
10.53 |
| 2026-06-09 12:00 |
05:25:00.86 |
+11:28:40.0 |
HIP 25297 |
5.67 |
| 2026-06-10 00:00 |
05:26:20.20 |
+11:30:16.1 |
HIP 25540 |
19.69 |
| 2026-06-10 12:00 |
05:27:39.83 |
+11:31:50.2 |
HIP 25540 |
6.20 |
| 2026-06-11 00:00 |
05:28:59.74 |
+11:33:22.4 |
HIP 25689 |
18.96 |
| 2026-06-11 12:00 |
05:30:19.94 |
+11:34:52.7 |
HIP 25689 |
24.64 |
| 2026-06-12 00:00 |
05:31:40.42 |
+11:36:21.0 |
HIP 25917 |
24.28 |
| 2026-06-12 12:00 |
05:33:01.19 |
+11:37:47.3 |
HIP 26028 |
25.76 |
| 2026-06-13 00:00 |
05:34:22.25 |
+11:39:11.6 |
HIP 26129 |
20.17 |
| 2026-06-13 12:00 |
05:35:43.59 |
+11:40:33.8 |
HIP 26356 |
17.84 |
| 2026-06-14 00:00 |
05:37:05.22 |
+11:41:54.1 |
HIP 26356 |
9.60 |
| 2026-06-14 12:00 |
05:38:27.14 |
+11:43:12.2 |
HIP 26609 |
15.50 |
| 2026-06-15 00:00 |
05:39:49.35 |
+11:44:28.3 |
HIP 26609 |
8.39 |
| 2026-06-15 12:00 |
05:41:11.85 |
+11:45:42.3 |
HIP 26609 |
26.78 |
| 2026-06-16 00:00 |
05:42:34.63 |
+11:46:54.2 |
HIP 27020 |
29.32 |
| 2026-06-16 12:00 |
05:43:57.71 |
+11:48:03.9 |
HIP 27020 |
23.78 |
| 2026-06-17 00:00 |
05:45:21.08 |
+11:49:11.5 |
HIP 27125 |
21.46 |
| 2026-06-17 12:00 |
05:46:44.74 |
+11:50:16.9 |
HIP 27315 |
30.80 |
| 2026-06-18 00:00 |
05:48:08.69 |
+11:51:20.1 |
HIP 27453 |
12.71 |
| 2026-06-18 12:00 |
05:49:32.94 |
+11:52:21.2 |
HIP 27543 |
11.08 |
| 2026-06-19 00:00 |
05:50:57.48 |
+11:53:20.0 |
HIP 27543 |
17.80 |
| 2026-06-19 12:00 |
05:52:22.31 |
+11:54:16.5 |
HIP 27820 |
13.44 |
| 2026-06-20 00:00 |
05:53:47.43 |
+11:55:10.9 |
HIP 27820 |
10.61 |
| 2026-06-20 12:00 |
05:55:12.85 |
+11:56:02.9 |
HIP 27924 |
14.27 |
| 2026-06-21 00:00 |
05:56:38.57 |
+11:56:52.7 |
HIP 28182 |
16.68 |
| 2026-06-21 12:00 |
05:58:04.58 |
+11:57:40.1 |
HIP 28182 |
17.64 |
| 2026-06-22 00:00 |
05:59:30.89 |
+11:58:25.2 |
HIP 28341 |
12.92 |