メタデータ
| 項目 |
値 |
| Designation |
C/2024 C3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2023-11-07T22:23:00.450240Z |
| Orbit solution date (soln_date, UTC) |
2025-04-24T09:42:19Z |
| Obs used |
68 |
| NEO |
- |
| M1 |
7.200 |
| K1 |
12.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-02-09T11:11:24.518400Z |
| Discovery magnitude (MPC) |
21.70 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) |
2024-03-24.0000000 |
| e |
0.42338622 |
| q (au) |
6.712614 |
| a (au) |
11.641438 |
| i (deg) |
22.466321 |
| Ω (om, deg) |
359.708122 |
| ω (w, deg) |
159.642989 |
| M (ma, deg) |
3.401169 |
等級
散乱 + 全体線形
$$
M_a = (4.380 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
4.380 |
| n |
6.000 |
| gf |
0.997 |
| gb |
-0.933 |
| 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
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
13:26:25.44 |
-24:56:36.7 |
HIP 65481 |
30.88 |
| 2026-06-01 12:00 |
13:26:19.38 |
-24:55:53.7 |
HIP 65400 |
30.57 |
| 2026-06-02 00:00 |
13:26:13.44 |
-24:55:10.9 |
HIP 65400 |
29.63 |
| 2026-06-02 12:00 |
13:26:07.62 |
-24:54:28.4 |
HIP 65400 |
28.76 |
| 2026-06-03 00:00 |
13:26:01.92 |
-24:53:46.1 |
HIP 65400 |
27.97 |
| 2026-06-03 12:00 |
13:25:56.34 |
-24:53:04.1 |
HIP 65400 |
27.25 |
| 2026-06-04 00:00 |
13:25:50.87 |
-24:52:22.3 |
HIP 65400 |
26.61 |
| 2026-06-04 12:00 |
13:25:45.53 |
-24:51:40.8 |
HIP 65400 |
26.05 |
| 2026-06-05 00:00 |
13:25:40.30 |
-24:50:59.5 |
HIP 65400 |
25.58 |
| 2026-06-05 12:00 |
13:25:35.20 |
-24:50:18.5 |
HIP 65400 |
25.18 |
| 2026-06-06 00:00 |
13:25:30.22 |
-24:49:37.8 |
HIP 65400 |
24.87 |
| 2026-06-06 12:00 |
13:25:25.36 |
-24:48:57.4 |
HIP 65400 |
24.64 |
| 2026-06-07 00:00 |
13:25:20.62 |
-24:48:17.3 |
HIP 65400 |
24.48 |
| 2026-06-07 12:00 |
13:25:16.00 |
-24:47:37.5 |
HIP 65400 |
24.41 |
| 2026-06-08 00:00 |
13:25:11.51 |
-24:46:58.0 |
HIP 65400 |
24.40 |
| 2026-06-08 12:00 |
13:25:07.14 |
-24:46:18.9 |
HIP 65400 |
24.47 |
| 2026-06-09 00:00 |
13:25:02.89 |
-24:45:40.0 |
HIP 65324 |
24.21 |
| 2026-06-09 12:00 |
13:24:58.77 |
-24:45:01.6 |
HIP 65324 |
23.15 |
| 2026-06-10 00:00 |
13:24:54.78 |
-24:44:23.4 |
HIP 65324 |
22.11 |
| 2026-06-10 12:00 |
13:24:50.91 |
-24:43:45.7 |
HIP 65324 |
21.12 |
| 2026-06-11 00:00 |
13:24:47.16 |
-24:43:08.3 |
HIP 65324 |
20.16 |
| 2026-06-11 12:00 |
13:24:43.54 |
-24:42:31.3 |
HIP 65324 |
19.25 |
| 2026-06-12 00:00 |
13:24:40.05 |
-24:41:54.6 |
HIP 65324 |
18.37 |
| 2026-06-12 12:00 |
13:24:36.68 |
-24:41:18.4 |
HIP 65324 |
17.53 |
| 2026-06-13 00:00 |
13:24:33.44 |
-24:40:42.5 |
HIP 65324 |
16.74 |
| 2026-06-13 12:00 |
13:24:30.33 |
-24:40:07.1 |
HIP 65324 |
16.00 |
| 2026-06-14 00:00 |
13:24:27.35 |
-24:39:32.0 |
HIP 65324 |
15.31 |
| 2026-06-14 12:00 |
13:24:24.49 |
-24:38:57.4 |
HIP 65324 |
14.66 |
| 2026-06-15 00:00 |
13:24:21.77 |
-24:38:23.2 |
HIP 65324 |
14.07 |
| 2026-06-15 12:00 |
13:24:19.17 |
-24:37:49.5 |
HIP 65324 |
13.53 |
| 2026-06-16 00:00 |
13:24:16.70 |
-24:37:16.2 |
HIP 65324 |
13.05 |
| 2026-06-16 12:00 |
13:24:14.36 |
-24:36:43.4 |
HIP 65324 |
12.63 |
| 2026-06-17 00:00 |
13:24:12.15 |
-24:36:11.0 |
HIP 65324 |
12.27 |
| 2026-06-17 12:00 |
13:24:10.06 |
-24:35:39.0 |
HIP 65324 |
11.96 |
| 2026-06-18 00:00 |
13:24:08.11 |
-24:35:07.6 |
HIP 65324 |
11.72 |
| 2026-06-18 12:00 |
13:24:06.29 |
-24:34:36.6 |
HIP 65324 |
11.54 |
| 2026-06-19 00:00 |
13:24:04.59 |
-24:34:06.1 |
HIP 65324 |
11.41 |
| 2026-06-19 12:00 |
13:24:03.03 |
-24:33:36.1 |
HIP 65324 |
11.34 |
| 2026-06-20 00:00 |
13:24:01.60 |
-24:33:06.6 |
HIP 65324 |
11.32 |
| 2026-06-20 12:00 |
13:24:00.29 |
-24:32:37.6 |
HIP 65324 |
11.36 |
| 2026-06-21 00:00 |
13:23:59.12 |
-24:32:09.1 |
HIP 65324 |
11.44 |
| 2026-06-21 12:00 |
13:23:58.07 |
-24:31:41.1 |
HIP 65324 |
11.56 |
| 2026-06-22 00:00 |
13:23:57.15 |
-24:31:13.6 |
HIP 65324 |
11.71 |