メタデータ
| 項目 |
値 |
| Designation |
C/2023 V3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2023-08-06T07:06:22.426560Z |
| Orbit solution date (soln_date, UTC) |
2024-01-04T23:43:40Z |
| Obs used |
52 |
| NEO |
- |
| M1 |
11.600 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-11-03T10:56:06.691200Z |
| Discovery magnitude (MPC) |
20.57 w |
| 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) |
2023-11-04.0000000 |
| e |
0.66229058 |
| q (au) |
4.471746 |
| a (au) |
13.241401 |
| i (deg) |
40.258479 |
| Ω (om, deg) |
91.489824 |
| ω (w, deg) |
291.538176 |
| M (ma, deg) |
1.834909 |
等級
散乱 + 全体線形
$$
M_a = (17.964 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
17.964 |
| n |
2.000 |
| gf |
0.988 |
| gb |
-0.759 |
| k |
0.800 |
| δ90 |
9.994 |
| 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) |
| 2026-09-20 00:00 |
08:28:14.59 |
+36:53:59.7 |
HIP 41552 |
6.91 |
| 2026-09-20 12:00 |
08:28:29.74 |
+36:54:49.0 |
HIP 41552 |
6.09 |
| 2026-09-21 00:00 |
08:28:44.79 |
+36:55:38.8 |
HIP 41552 |
6.77 |
| 2026-09-21 12:00 |
08:28:59.75 |
+36:56:29.3 |
HIP 41552 |
8.58 |
| 2026-09-22 00:00 |
08:29:14.62 |
+36:57:20.3 |
HIP 41691 |
10.82 |
| 2026-09-22 12:00 |
08:29:29.39 |
+36:58:11.9 |
HIP 41691 |
8.10 |
| 2026-09-23 00:00 |
08:29:44.07 |
+36:59:04.1 |
HIP 41691 |
5.74 |
| 2026-09-23 12:00 |
08:29:58.66 |
+36:59:56.9 |
HIP 41691 |
4.34 |
| 2026-09-24 00:00 |
08:30:13.14 |
+37:00:50.3 |
HIP 41691 |
4.79 |
| 2026-09-24 12:00 |
08:30:27.54 |
+37:01:44.3 |
HIP 41691 |
6.72 |
| 2026-09-25 00:00 |
08:30:41.83 |
+37:02:38.9 |
HIP 41691 |
9.22 |
| 2026-09-25 12:00 |
08:30:56.03 |
+37:03:34.1 |
HIP 41691 |
11.93 |
| 2026-09-26 00:00 |
08:31:10.13 |
+37:04:30.0 |
HIP 41798 |
11.57 |
| 2026-09-26 12:00 |
08:31:24.13 |
+37:05:26.4 |
HIP 41798 |
10.49 |
| 2026-09-27 00:00 |
08:31:38.03 |
+37:06:23.4 |
HIP 41798 |
10.17 |
| 2026-09-27 12:00 |
08:31:51.84 |
+37:07:21.1 |
HIP 41798 |
10.65 |
| 2026-09-28 00:00 |
08:32:05.54 |
+37:08:19.3 |
HIP 41798 |
11.82 |
| 2026-09-28 12:00 |
08:32:19.14 |
+37:09:18.2 |
HIP 41945 |
9.76 |
| 2026-09-29 00:00 |
08:32:32.64 |
+37:10:17.7 |
HIP 41945 |
7.97 |
| 2026-09-29 12:00 |
08:32:46.03 |
+37:11:17.9 |
HIP 41945 |
6.97 |
| 2026-09-30 00:00 |
08:32:59.33 |
+37:12:18.6 |
HIP 41945 |
7.08 |
| 2026-09-30 12:00 |
08:33:12.52 |
+37:13:20.0 |
HIP 41945 |
8.23 |
| 2026-10-01 00:00 |
08:33:25.60 |
+37:14:22.0 |
HIP 42006 |
8.37 |
| 2026-10-01 12:00 |
08:33:38.58 |
+37:15:24.6 |
HIP 42006 |
8.75 |
| 2026-10-02 00:00 |
08:33:51.45 |
+37:16:27.9 |
HIP 42006 |
9.93 |
| 2026-10-02 12:00 |
08:34:04.21 |
+37:17:31.8 |
HIP 42006 |
11.67 |
| 2026-10-03 00:00 |
08:34:16.87 |
+37:18:36.3 |
HIP 42006 |
13.74 |
| 2026-10-03 12:00 |
08:34:29.42 |
+37:19:41.5 |
HIP 42006 |
16.01 |
| 2026-10-04 00:00 |
08:34:41.86 |
+37:20:47.4 |
HIP 42006 |
18.40 |
| 2026-10-04 12:00 |
08:34:54.19 |
+37:21:53.8 |
HIP 42006 |
20.86 |
| 2026-10-05 00:00 |
08:35:06.40 |
+37:23:00.9 |
HIP 42006 |
23.36 |
| 2026-10-05 12:00 |
08:35:18.51 |
+37:24:08.7 |
HIP 42006 |
25.88 |
| 2026-10-06 00:00 |
08:35:30.50 |
+37:25:17.1 |
HIP 42006 |
28.42 |
| 2026-10-06 12:00 |
08:35:42.38 |
+37:26:26.2 |
HIP 42006 |
30.97 |
| 2026-10-07 00:00 |
08:35:54.15 |
+37:27:35.9 |
HIP 42006 |
33.51 |
| 2026-10-07 12:00 |
08:36:05.80 |
+37:28:46.3 |
HIP 42006 |
36.06 |
| 2026-10-08 00:00 |
08:36:17.33 |
+37:29:57.3 |
HIP 42445 |
35.29 |
| 2026-10-08 12:00 |
08:36:28.75 |
+37:31:09.0 |
HIP 42445 |
32.98 |
| 2026-10-09 00:00 |
08:36:40.05 |
+37:32:21.3 |
HIP 42445 |
30.74 |
| 2026-10-09 12:00 |
08:36:51.24 |
+37:33:34.3 |
HIP 42445 |
28.57 |
| 2026-10-10 00:00 |
08:37:02.30 |
+37:34:47.9 |
HIP 42445 |
26.50 |
| 2026-10-10 12:00 |
08:37:13.24 |
+37:36:02.3 |
HIP 42445 |
24.54 |
| 2026-10-11 00:00 |
08:37:24.07 |
+37:37:17.2 |
HIP 42445 |
22.70 |