324P/La Sagra
メタデータ
| 項目 |
値 |
| Designation |
324P/La Sagra |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-06-22T21:26:10.155840Z |
| Orbit solution date (soln_date, UTC) |
2021-11-20T19:13:19Z |
| Obs used |
500 |
| NEO |
- |
| M1 |
7.500 |
| K1 |
25.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2012-12-12.0000000 |
| e |
0.15378585 |
| q (au) |
2.617981 |
| a (au) |
3.093757 |
| i (deg) |
21.420027 |
| Ω (om, deg) |
270.651010 |
| ω (w, deg) |
58.900249 |
| M (ma, deg) |
163.573823 |
等級
散乱 + 全体線形
$$
M_a = (16.308 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
16.308 |
| n |
2.000 |
| gf |
0.800 |
| gb |
-0.501 |
| k |
1.000 |
| δ90 |
2.417 |
| 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 |
18:41:06.16 |
-23:54:33.5 |
HIP 91652 |
4.31 |
| 2026-02-03 12:00 |
18:41:56.92 |
-23:51:54.0 |
HIP 91689 |
2.25 |
| 2026-02-04 00:00 |
18:42:47.60 |
-23:49:13.3 |
HIP 91689 |
12.83 |
| 2026-02-04 12:00 |
18:43:38.20 |
-23:46:31.4 |
HIP 91993 |
20.54 |
| 2026-02-05 00:00 |
18:44:28.72 |
-23:43:48.2 |
HIP 91993 |
9.11 |
| 2026-02-05 12:00 |
18:45:19.16 |
-23:41:03.8 |
HIP 91993 |
5.10 |
| 2026-02-06 00:00 |
18:46:09.52 |
-23:38:18.2 |
HIP 91993 |
15.82 |
| 2026-02-06 12:00 |
18:46:59.80 |
-23:35:31.4 |
HIP 92240 |
23.81 |
| 2026-02-07 00:00 |
18:47:49.99 |
-23:32:43.3 |
HIP 92240 |
17.34 |
| 2026-02-07 12:00 |
18:48:40.10 |
-23:29:54.0 |
HIP 92240 |
17.73 |
| 2026-02-08 00:00 |
18:49:30.12 |
-23:27:03.5 |
HIP 92403 |
23.49 |
| 2026-02-08 12:00 |
18:50:20.06 |
-23:24:11.8 |
HIP 92503 |
23.61 |
| 2026-02-09 00:00 |
18:51:09.91 |
-23:21:18.9 |
HIP 92503 |
18.25 |
| 2026-02-09 12:00 |
18:51:59.68 |
-23:18:24.8 |
HIP 92685 |
16.61 |
| 2026-02-10 00:00 |
18:52:49.35 |
-23:15:29.5 |
HIP 92685 |
8.11 |
| 2026-02-10 12:00 |
18:53:38.94 |
-23:12:32.9 |
HIP 92685 |
11.53 |
| 2026-02-11 00:00 |
18:54:28.44 |
-23:09:35.2 |
HIP 92931 |
21.22 |
| 2026-02-11 12:00 |
18:55:17.84 |
-23:06:36.2 |
HIP 92931 |
10.56 |
| 2026-02-12 00:00 |
18:56:07.15 |
-23:03:36.1 |
HIP 92931 |
6.98 |
| 2026-02-12 12:00 |
18:56:56.37 |
-23:00:34.7 |
HIP 92980 |
9.78 |
| 2026-02-13 00:00 |
18:57:45.50 |
-22:57:32.2 |
HIP 92980 |
19.98 |
| 2026-02-13 12:00 |
18:58:34.53 |
-22:54:28.4 |
HIP 93155 |
14.74 |
| 2026-02-14 00:00 |
18:59:23.46 |
-22:51:23.5 |
HIP 93288 |
15.53 |
| 2026-02-14 12:00 |
19:00:12.30 |
-22:48:17.4 |
HIP 93288 |
15.60 |
| 2026-02-15 00:00 |
19:01:01.04 |
-22:45:10.1 |
HIP 93423 |
9.14 |
| 2026-02-15 12:00 |
19:01:49.68 |
-22:42:01.6 |
HIP 93423 |
2.77 |
| 2026-02-16 00:00 |
19:02:38.22 |
-22:38:51.9 |
HIP 93423 |
14.24 |
| 2026-02-16 12:00 |
19:03:26.66 |
-22:35:41.1 |
HIP 93605 |
8.06 |
| 2026-02-17 00:00 |
19:04:14.99 |
-22:32:29.1 |
HIP 93605 |
12.51 |
| 2026-02-17 12:00 |
19:05:03.22 |
-22:29:15.9 |
HIP 93819 |
19.35 |
| 2026-02-18 00:00 |
19:05:51.35 |
-22:26:01.6 |
HIP 93819 |
12.21 |
| 2026-02-18 12:00 |
19:06:39.38 |
-22:22:46.1 |
HIP 93866 |
8.33 |
| 2026-02-19 00:00 |
19:07:27.29 |
-22:19:29.4 |
HIP 93866 |
12.34 |
| 2026-02-19 12:00 |
19:08:15.10 |
-22:16:11.6 |
HIP 94115 |
18.67 |
| 2026-02-20 00:00 |
19:09:02.80 |
-22:12:52.6 |
HIP 94115 |
11.73 |
| 2026-02-20 12:00 |
19:09:50.40 |
-22:09:32.5 |
HIP 94115 |
13.86 |
| 2026-02-21 00:00 |
19:10:37.88 |
-22:06:11.2 |
HIP 94115 |
22.62 |
| 2026-02-21 12:00 |
19:11:25.25 |
-22:02:48.8 |
HIP 94338 |
11.79 |
| 2026-02-22 00:00 |
19:12:12.51 |
-21:59:25.2 |
HIP 94338 |
4.04 |
| 2026-02-22 12:00 |
19:12:59.66 |
-21:56:00.5 |
HIP 94338 |
12.49 |
| 2026-02-23 00:00 |
19:13:46.69 |
-21:52:34.7 |
HIP 94510 |
12.19 |
| 2026-02-23 12:00 |
19:14:33.61 |
-21:49:07.7 |
HIP 94510 |
15.61 |
| 2026-02-24 00:00 |
19:15:20.42 |
-21:45:39.6 |
HIP 94510 |
24.48 |