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) |
| 2026-07-29 00:00 |
08:00:14.98 |
+10:46:10.2 |
HIP 39209 |
20.22 |
| 2026-07-29 12:00 |
08:02:04.46 |
+10:43:13.6 |
HIP 39359 |
10.40 |
| 2026-07-30 00:00 |
08:03:54.23 |
+10:40:13.5 |
HIP 39488 |
12.44 |
| 2026-07-30 12:00 |
08:05:44.30 |
+10:37:10.0 |
HIP 39558 |
12.85 |
| 2026-07-31 00:00 |
08:07:34.66 |
+10:34:03.1 |
HIP 39739 |
21.57 |
| 2026-07-31 12:00 |
08:09:25.32 |
+10:30:52.8 |
HIP 39910 |
5.08 |
| 2026-08-01 00:00 |
08:11:16.27 |
+10:27:39.1 |
HIP 40042 |
14.93 |
| 2026-08-01 12:00 |
08:13:07.51 |
+10:24:21.9 |
HIP 40284 |
7.16 |
| 2026-08-02 00:00 |
08:14:59.04 |
+10:21:01.3 |
HIP 40372 |
11.78 |
| 2026-08-02 12:00 |
08:16:50.86 |
+10:17:37.2 |
HIP 40558 |
14.82 |
| 2026-08-03 00:00 |
08:18:42.98 |
+10:14:09.7 |
HIP 40558 |
32.59 |
| 2026-08-03 12:00 |
08:20:35.38 |
+10:10:38.8 |
HIP 40987 |
20.42 |
| 2026-08-04 00:00 |
08:22:28.06 |
+10:07:04.4 |
HIP 40987 |
9.06 |
| 2026-08-04 12:00 |
08:24:21.03 |
+10:03:26.6 |
HIP 41378 |
31.25 |
| 2026-08-05 00:00 |
08:26:14.29 |
+09:59:45.3 |
HIP 41378 |
6.07 |
| 2026-08-05 12:00 |
08:28:07.83 |
+09:56:00.7 |
HIP 41613 |
24.79 |
| 2026-08-06 00:00 |
08:30:01.64 |
+09:52:12.5 |
HIP 41648 |
27.02 |
| 2026-08-06 12:00 |
08:31:55.74 |
+09:48:21.0 |
HIP 41843 |
0.58 |
| 2026-08-07 00:00 |
08:33:50.11 |
+09:44:26.0 |
HIP 42084 |
25.27 |
| 2026-08-07 12:00 |
08:35:44.76 |
+09:40:27.6 |
HIP 42159 |
10.60 |
| 2026-08-08 00:00 |
08:37:39.69 |
+09:36:25.8 |
HIP 42353 |
6.58 |
| 2026-08-08 12:00 |
08:39:34.88 |
+09:32:20.6 |
HIP 42353 |
22.21 |
| 2026-08-09 00:00 |
08:41:30.35 |
+09:28:11.9 |
HIP 42748 |
19.01 |
| 2026-08-09 12:00 |
08:43:26.08 |
+09:24:00.0 |
HIP 42837 |
5.23 |
| 2026-08-10 00:00 |
08:45:22.08 |
+09:19:44.5 |
HIP 42837 |
24.84 |
| 2026-08-10 12:00 |
08:47:18.34 |
+09:15:25.7 |
HIP 43134 |
7.85 |
| 2026-08-11 00:00 |
08:49:14.87 |
+09:11:03.6 |
HIP 43317 |
19.50 |
| 2026-08-11 12:00 |
08:51:11.65 |
+09:06:38.0 |
HIP 43582 |
20.51 |
| 2026-08-12 00:00 |
08:53:08.69 |
+09:02:09.2 |
HIP 43582 |
8.75 |
| 2026-08-12 12:00 |
08:55:05.99 |
+08:57:37.0 |
HIP 43618 |
33.57 |
| 2026-08-13 00:00 |
08:57:03.54 |
+08:53:01.5 |
HIP 44010 |
31.70 |
| 2026-08-13 12:00 |
08:59:01.33 |
+08:48:22.8 |
HIP 44133 |
11.48 |
| 2026-08-14 00:00 |
09:00:59.38 |
+08:43:40.7 |
HIP 44272 |
19.43 |
| 2026-08-14 12:00 |
09:02:57.67 |
+08:38:55.4 |
HIP 44398 |
11.08 |
| 2026-08-15 00:00 |
09:04:56.20 |
+08:34:06.8 |
HIP 44611 |
16.97 |
| 2026-08-15 12:00 |
09:06:54.97 |
+08:29:15.0 |
HIP 44736 |
9.56 |
| 2026-08-16 00:00 |
09:08:53.99 |
+08:24:20.0 |
HIP 44736 |
28.83 |
| 2026-08-16 12:00 |
09:10:53.23 |
+08:19:21.8 |
HIP 45093 |
24.47 |
| 2026-08-17 00:00 |
09:12:52.71 |
+08:14:20.4 |
HIP 45234 |
3.62 |
| 2026-08-17 12:00 |
09:14:52.42 |
+08:09:15.9 |
HIP 45234 |
26.47 |
| 2026-08-18 00:00 |
09:16:52.35 |
+08:04:08.3 |
HIP 45613 |
16.25 |
| 2026-08-18 12:00 |
09:18:52.52 |
+07:58:57.5 |
HIP 45613 |
15.43 |
| 2026-08-19 00:00 |
09:20:52.90 |
+07:53:43.7 |
HIP 45772 |
21.76 |