382P/Larson
メタデータ
| 項目 |
値 |
| Designation |
382P/Larson |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2022-07-08T09:40:46.269120Z |
| Orbit solution date (soln_date, UTC) |
2025-02-13T09:13:13Z |
| Obs used |
543 |
| NEO |
- |
| M1 |
7.100 |
| K1 |
14.000 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2019-05-31T10:50:13.056000Z |
| Discovery magnitude (MPC) |
22.00 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) |
2015-02-14.0000000 |
| e |
0.27620614 |
| q (au) |
4.380367 |
| a (au) |
6.051954 |
| i (deg) |
7.867442 |
| Ω (om, deg) |
181.665365 |
| ω (w, deg) |
175.509381 |
| M (ma, deg) |
181.166011 |
等級
散乱 + 全体線形
$$
M_a = (5.637 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
5.637 |
| n |
6.000 |
| 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
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
06:45:19.38 |
+14:27:47.7 |
HIP 32308 |
28.24 |
| 2026-02-03 12:00 |
06:45:09.11 |
+14:28:30.1 |
HIP 32308 |
26.88 |
| 2026-02-04 00:00 |
06:44:58.97 |
+14:29:12.6 |
HIP 32308 |
25.71 |
| 2026-02-04 12:00 |
06:44:48.95 |
+14:29:55.3 |
HIP 32308 |
24.74 |
| 2026-02-05 00:00 |
06:44:39.05 |
+14:30:38.1 |
HIP 32308 |
24.01 |
| 2026-02-05 12:00 |
06:44:29.27 |
+14:31:20.9 |
HIP 32308 |
23.51 |
| 2026-02-06 00:00 |
06:44:19.62 |
+14:32:03.9 |
HIP 32308 |
23.25 |
| 2026-02-06 12:00 |
06:44:10.09 |
+14:32:46.9 |
HIP 32308 |
23.24 |
| 2026-02-07 00:00 |
06:44:00.69 |
+14:33:30.1 |
HIP 32308 |
23.47 |
| 2026-02-07 12:00 |
06:43:51.41 |
+14:34:13.3 |
HIP 32308 |
23.91 |
| 2026-02-08 00:00 |
06:43:42.26 |
+14:34:56.6 |
HIP 32308 |
24.55 |
| 2026-02-08 12:00 |
06:43:33.25 |
+14:35:40.0 |
HIP 32308 |
25.37 |
| 2026-02-09 00:00 |
06:43:24.36 |
+14:36:23.5 |
HIP 32049 |
26.16 |
| 2026-02-09 12:00 |
06:43:15.61 |
+14:37:07.0 |
HIP 32049 |
24.63 |
| 2026-02-10 00:00 |
06:43:06.99 |
+14:37:50.6 |
HIP 32049 |
23.24 |
| 2026-02-10 12:00 |
06:42:58.50 |
+14:38:34.3 |
HIP 32049 |
22.02 |
| 2026-02-11 00:00 |
06:42:50.15 |
+14:39:18.0 |
HIP 32049 |
20.98 |
| 2026-02-11 12:00 |
06:42:41.94 |
+14:40:01.7 |
HIP 32049 |
20.14 |
| 2026-02-12 00:00 |
06:42:33.87 |
+14:40:45.6 |
HIP 32049 |
19.51 |
| 2026-02-12 12:00 |
06:42:25.93 |
+14:41:29.4 |
HIP 32049 |
19.10 |
| 2026-02-13 00:00 |
06:42:18.14 |
+14:42:13.3 |
HIP 32009 |
17.72 |
| 2026-02-13 12:00 |
06:42:10.48 |
+14:42:57.3 |
HIP 32009 |
15.76 |
| 2026-02-14 00:00 |
06:42:02.97 |
+14:43:41.3 |
HIP 32009 |
13.82 |
| 2026-02-14 12:00 |
06:41:55.60 |
+14:44:25.3 |
HIP 32009 |
11.93 |
| 2026-02-15 00:00 |
06:41:48.37 |
+14:45:09.3 |
HIP 32009 |
10.08 |
| 2026-02-15 12:00 |
06:41:41.29 |
+14:45:53.4 |
HIP 32009 |
8.27 |
| 2026-02-16 00:00 |
06:41:34.35 |
+14:46:37.4 |
HIP 32009 |
6.52 |
| 2026-02-16 12:00 |
06:41:27.56 |
+14:47:21.5 |
HIP 32009 |
4.85 |
| 2026-02-17 00:00 |
06:41:20.92 |
+14:48:05.6 |
HIP 32009 |
3.33 |
| 2026-02-17 12:00 |
06:41:14.43 |
+14:48:49.7 |
HIP 32009 |
2.22 |
| 2026-02-18 00:00 |
06:41:08.08 |
+14:49:33.7 |
HIP 32009 |
2.15 |
| 2026-02-18 12:00 |
06:41:01.89 |
+14:50:17.8 |
HIP 32009 |
3.15 |
| 2026-02-19 00:00 |
06:40:55.84 |
+14:51:01.9 |
HIP 32009 |
4.52 |
| 2026-02-19 12:00 |
06:40:49.95 |
+14:51:46.0 |
HIP 32009 |
5.99 |
| 2026-02-20 00:00 |
06:40:44.21 |
+14:52:30.0 |
HIP 32009 |
7.47 |
| 2026-02-20 12:00 |
06:40:38.62 |
+14:53:14.0 |
HIP 32009 |
8.95 |
| 2026-02-21 00:00 |
06:40:33.18 |
+14:53:58.0 |
HIP 32009 |
10.41 |
| 2026-02-21 12:00 |
06:40:27.90 |
+14:54:41.9 |
HIP 32009 |
11.85 |
| 2026-02-22 00:00 |
06:40:22.77 |
+14:55:25.9 |
HIP 32009 |
13.26 |
| 2026-02-22 12:00 |
06:40:17.80 |
+14:56:09.7 |
HIP 32009 |
14.63 |
| 2026-02-23 00:00 |
06:40:12.98 |
+14:56:53.6 |
HIP 32009 |
15.98 |
| 2026-02-23 12:00 |
06:40:08.31 |
+14:57:37.4 |
HIP 32009 |
17.30 |
| 2026-02-24 00:00 |
06:40:03.80 |
+14:58:21.1 |
HIP 32009 |
18.59 |