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 |
-0.539 |
| 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) |
| 2026-03-26 00:00 |
14:25:51.61 |
-43:07:50.6 |
HIP 70581 |
17.13 |
| 2026-03-26 12:00 |
14:25:17.90 |
-43:10:42.0 |
HIP 70581 |
17.16 |
| 2026-03-27 00:00 |
14:24:43.93 |
-43:13:31.3 |
HIP 70581 |
19.72 |
| 2026-03-27 12:00 |
14:24:09.71 |
-43:16:18.6 |
HIP 70581 |
24.05 |
| 2026-03-28 00:00 |
14:23:35.24 |
-43:19:03.8 |
HIP 70172 |
23.88 |
| 2026-03-28 12:00 |
14:23:00.53 |
-43:21:46.9 |
HIP 70172 |
17.93 |
| 2026-03-29 00:00 |
14:22:25.56 |
-43:24:27.9 |
HIP 70163 |
12.84 |
| 2026-03-29 12:00 |
14:21:50.36 |
-43:27:06.8 |
HIP 70163 |
5.92 |
| 2026-03-30 00:00 |
14:21:14.92 |
-43:29:43.4 |
HIP 70163 |
1.02 |
| 2026-03-30 12:00 |
14:20:39.25 |
-43:32:17.9 |
HIP 70163 |
7.98 |
| 2026-03-31 00:00 |
14:20:03.35 |
-43:34:50.2 |
HIP 70163 |
14.96 |
| 2026-03-31 12:00 |
14:19:27.22 |
-43:37:20.2 |
HIP 70163 |
21.96 |
| 2026-04-01 00:00 |
14:18:50.86 |
-43:39:48.0 |
HIP 69897 |
25.93 |
| 2026-04-01 12:00 |
14:18:14.29 |
-43:42:13.5 |
HIP 69849 |
21.69 |
| 2026-04-02 00:00 |
14:17:37.49 |
-43:44:36.7 |
HIP 69849 |
18.56 |
| 2026-04-02 12:00 |
14:17:00.49 |
-43:46:57.6 |
HIP 69849 |
17.89 |
| 2026-04-03 00:00 |
14:16:23.27 |
-43:49:16.2 |
HIP 69849 |
19.92 |
| 2026-04-03 12:00 |
14:15:45.86 |
-43:51:32.4 |
HIP 69597 |
23.32 |
| 2026-04-04 00:00 |
14:15:08.23 |
-43:53:46.3 |
HIP 69597 |
18.71 |
| 2026-04-04 12:00 |
14:14:30.42 |
-43:55:57.7 |
HIP 69460 |
14.54 |
| 2026-04-05 00:00 |
14:13:52.40 |
-43:58:06.8 |
HIP 69460 |
7.38 |
| 2026-04-05 12:00 |
14:13:14.20 |
-44:00:13.5 |
HIP 69460 |
0.54 |
| 2026-04-06 00:00 |
14:12:35.82 |
-44:02:17.7 |
HIP 69460 |
7.05 |
| 2026-04-06 12:00 |
14:11:57.25 |
-44:04:19.4 |
HIP 69460 |
14.26 |
| 2026-04-07 00:00 |
14:11:18.50 |
-44:06:18.7 |
HIP 69460 |
21.50 |
| 2026-04-07 12:00 |
14:10:39.59 |
-44:08:15.5 |
HIP 69176 |
17.88 |
| 2026-04-08 00:00 |
14:10:00.51 |
-44:10:09.8 |
HIP 69176 |
12.65 |
| 2026-04-08 12:00 |
14:09:21.26 |
-44:12:01.6 |
HIP 69176 |
10.32 |
| 2026-04-09 00:00 |
14:08:41.85 |
-44:13:50.8 |
HIP 69176 |
12.64 |
| 2026-04-09 12:00 |
14:08:02.29 |
-44:15:37.5 |
HIP 69036 |
16.09 |
| 2026-04-10 00:00 |
14:07:22.59 |
-44:17:21.7 |
HIP 69036 |
18.69 |
| 2026-04-10 12:00 |
14:06:42.74 |
-44:19:03.3 |
HIP 68867 |
23.12 |
| 2026-04-11 00:00 |
14:06:02.75 |
-44:20:42.3 |
HIP 68867 |
20.66 |
| 2026-04-11 12:00 |
14:05:22.62 |
-44:22:18.7 |
HIP 68717 |
20.46 |
| 2026-04-12 00:00 |
14:04:42.37 |
-44:23:52.5 |
HIP 68717 |
14.85 |
| 2026-04-12 12:00 |
14:04:01.99 |
-44:25:23.8 |
HIP 68717 |
11.47 |
| 2026-04-13 00:00 |
14:03:21.49 |
-44:26:52.4 |
HIP 68717 |
12.33 |
| 2026-04-13 12:00 |
14:02:40.88 |
-44:28:18.3 |
HIP 68717 |
16.80 |
| 2026-04-14 00:00 |
14:02:00.16 |
-44:29:41.7 |
HIP 68475 |
20.08 |
| 2026-04-14 12:00 |
14:01:19.34 |
-44:31:02.4 |
HIP 68475 |
19.28 |
| 2026-04-15 00:00 |
14:00:38.42 |
-44:32:20.4 |
HIP 68354 |
19.47 |
| 2026-04-15 12:00 |
13:59:57.41 |
-44:33:35.8 |
HIP 68354 |
17.16 |
| 2026-04-16 00:00 |
13:59:16.31 |
-44:34:48.6 |
HIP 68282 |
14.82 |