メタデータ
| 項目 |
値 |
| Designation |
C/2024 L1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-04-23T13:04:04.661760Z |
| Orbit solution date (soln_date, UTC) |
2025-08-12T09:42:16Z |
| Obs used |
100 |
| NEO |
- |
| M1 |
14.300 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-06-01T07:04:12.230400Z |
| Discovery magnitude (MPC) |
21.19 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2024-08-09.0000000 |
| e |
0.53343848 |
| q (au) |
5.347870 |
| a (au) |
11.462305 |
| i (deg) |
99.174449 |
| Ω (om, deg) |
45.136998 |
| ω (w, deg) |
171.833347 |
| M (ma, deg) |
353.458935 |
等級
散乱 + 全体線形
$$
M_a = (12.968 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
12.968 |
| n |
2.000 |
| 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
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 |
13:01:49.26 |
-43:45:03.7 |
HIP 63714 |
19.03 |
| 2026-06-01 12:00 |
13:01:21.48 |
-43:43:22.0 |
HIP 63412 |
20.77 |
| 2026-06-02 00:00 |
13:00:53.99 |
-43:41:39.8 |
HIP 63412 |
17.42 |
| 2026-06-02 12:00 |
13:00:26.79 |
-43:39:57.1 |
HIP 63375 |
14.35 |
| 2026-06-03 00:00 |
12:59:59.87 |
-43:38:14.0 |
HIP 63375 |
10.13 |
| 2026-06-03 12:00 |
12:59:33.25 |
-43:36:30.4 |
HIP 63375 |
7.28 |
| 2026-06-04 00:00 |
12:59:06.91 |
-43:34:46.5 |
HIP 63375 |
7.47 |
| 2026-06-04 12:00 |
12:58:40.87 |
-43:33:02.2 |
HIP 63375 |
10.47 |
| 2026-06-05 00:00 |
12:58:15.13 |
-43:31:17.6 |
HIP 63223 |
11.40 |
| 2026-06-05 12:00 |
12:57:49.67 |
-43:29:32.8 |
HIP 63223 |
8.46 |
| 2026-06-06 00:00 |
12:57:24.51 |
-43:27:47.6 |
HIP 63223 |
7.86 |
| 2026-06-06 12:00 |
12:56:59.64 |
-43:26:02.3 |
HIP 63148 |
6.97 |
| 2026-06-07 00:00 |
12:56:35.07 |
-43:24:16.7 |
HIP 63148 |
3.32 |
| 2026-06-07 12:00 |
12:56:10.79 |
-43:22:31.0 |
HIP 63148 |
4.40 |
| 2026-06-08 00:00 |
12:55:46.80 |
-43:20:45.1 |
HIP 63148 |
8.49 |
| 2026-06-08 12:00 |
12:55:23.11 |
-43:18:59.2 |
HIP 63148 |
12.96 |
| 2026-06-09 00:00 |
12:54:59.72 |
-43:17:13.1 |
HIP 63148 |
17.48 |
| 2026-06-09 12:00 |
12:54:36.62 |
-43:15:27.0 |
HIP 62907 |
15.88 |
| 2026-06-10 00:00 |
12:54:13.82 |
-43:13:40.9 |
HIP 62907 |
11.76 |
| 2026-06-10 12:00 |
12:53:51.31 |
-43:11:54.8 |
HIP 62907 |
8.09 |
| 2026-06-11 00:00 |
12:53:29.10 |
-43:10:08.7 |
HIP 62907 |
5.70 |
| 2026-06-11 12:00 |
12:53:07.18 |
-43:08:22.7 |
HIP 62907 |
6.17 |
| 2026-06-12 00:00 |
12:52:45.56 |
-43:06:36.8 |
HIP 62907 |
9.00 |
| 2026-06-12 12:00 |
12:52:24.24 |
-43:04:51.1 |
HIP 62907 |
12.65 |
| 2026-06-13 00:00 |
12:52:03.21 |
-43:03:05.4 |
HIP 62907 |
16.55 |
| 2026-06-13 12:00 |
12:51:42.48 |
-43:01:20.0 |
HIP 62907 |
20.52 |
| 2026-06-14 00:00 |
12:51:22.05 |
-42:59:34.7 |
HIP 62907 |
24.52 |
| 2026-06-14 12:00 |
12:51:01.90 |
-42:57:49.7 |
HIP 62907 |
28.50 |
| 2026-06-15 00:00 |
12:50:42.06 |
-42:56:05.0 |
HIP 62562 |
25.07 |
| 2026-06-15 12:00 |
12:50:22.51 |
-42:54:20.6 |
HIP 62562 |
21.37 |
| 2026-06-16 00:00 |
12:50:03.25 |
-42:52:36.4 |
HIP 62562 |
17.83 |
| 2026-06-16 12:00 |
12:49:44.28 |
-42:50:52.7 |
HIP 62562 |
14.52 |
| 2026-06-17 00:00 |
12:49:25.61 |
-42:49:09.3 |
HIP 62562 |
11.60 |
| 2026-06-17 12:00 |
12:49:07.23 |
-42:47:26.2 |
HIP 62562 |
9.38 |
| 2026-06-18 00:00 |
12:48:49.14 |
-42:45:43.7 |
HIP 62562 |
8.35 |
| 2026-06-18 12:00 |
12:48:31.34 |
-42:44:01.5 |
HIP 62469 |
8.30 |
| 2026-06-19 00:00 |
12:48:13.83 |
-42:42:19.8 |
HIP 62469 |
5.50 |
| 2026-06-19 12:00 |
12:47:56.61 |
-42:40:38.7 |
HIP 62469 |
4.23 |
| 2026-06-20 00:00 |
12:47:39.68 |
-42:38:58.0 |
HIP 62469 |
5.55 |
| 2026-06-20 12:00 |
12:47:23.03 |
-42:37:17.9 |
HIP 62469 |
8.24 |
| 2026-06-21 00:00 |
12:47:06.67 |
-42:35:38.3 |
HIP 62469 |
11.32 |
| 2026-06-21 12:00 |
12:46:50.60 |
-42:33:59.3 |
HIP 62469 |
14.51 |
| 2026-06-22 00:00 |
12:46:34.80 |
-42:32:21.0 |
HIP 62469 |
17.73 |