メタデータ
| 項目 |
値 |
| Designation |
429P/LINEAR-Hill |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2008-11-02T20:41:05.654400Z |
| Orbit solution date (soln_date, UTC) |
2024-03-04T23:13:07Z |
| Obs used |
587 |
| NEO |
- |
| M1 |
12.100 |
| 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) |
2010-06-16.0000000 |
| e |
0.50669295 |
| q (au) |
1.722910 |
| a (au) |
3.492571 |
| i (deg) |
7.748307 |
| Ω (om, deg) |
325.147789 |
| ω (w, deg) |
72.067040 |
| M (ma, deg) |
89.112743 |
等級
散乱 + 全体線形
$$
M_a = (14.213 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
14.213 |
| 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) |
| 2026-09-20 00:00 |
15:36:58.84 |
-26:11:34.1 |
HIP 76503 |
8.46 |
| 2026-09-20 12:00 |
15:37:20.10 |
-26:12:04.0 |
HIP 76503 |
5.08 |
| 2026-09-21 00:00 |
15:37:41.49 |
-26:12:34.5 |
HIP 76503 |
5.12 |
| 2026-09-21 12:00 |
15:38:03.03 |
-26:13:05.4 |
HIP 76503 |
8.58 |
| 2026-09-22 00:00 |
15:38:24.70 |
-26:13:36.7 |
HIP 76503 |
12.99 |
| 2026-09-22 12:00 |
15:38:46.51 |
-26:14:08.6 |
HIP 76503 |
17.69 |
| 2026-09-23 00:00 |
15:39:08.46 |
-26:14:41.0 |
HIP 76503 |
22.51 |
| 2026-09-23 12:00 |
15:39:30.55 |
-26:15:13.8 |
HIP 76503 |
27.40 |
| 2026-09-24 00:00 |
15:39:52.77 |
-26:15:47.1 |
HIP 76872 |
26.98 |
| 2026-09-24 12:00 |
15:40:15.12 |
-26:16:20.9 |
HIP 76872 |
22.34 |
| 2026-09-25 00:00 |
15:40:37.61 |
-26:16:55.1 |
HIP 76872 |
17.91 |
| 2026-09-25 12:00 |
15:41:00.23 |
-26:17:29.7 |
HIP 76872 |
13.90 |
| 2026-09-26 00:00 |
15:41:22.99 |
-26:18:04.8 |
HIP 76872 |
10.85 |
| 2026-09-26 12:00 |
15:41:45.87 |
-26:18:40.4 |
HIP 76872 |
9.74 |
| 2026-09-27 00:00 |
15:42:08.89 |
-26:19:16.3 |
HIP 76872 |
11.23 |
| 2026-09-27 12:00 |
15:42:32.03 |
-26:19:52.7 |
HIP 76872 |
14.55 |
| 2026-09-28 00:00 |
15:42:55.31 |
-26:20:29.5 |
HIP 76872 |
18.79 |
| 2026-09-28 12:00 |
15:43:18.71 |
-26:21:06.8 |
HIP 76946 |
23.23 |
| 2026-09-29 00:00 |
15:43:42.24 |
-26:21:44.4 |
HIP 77170 |
23.62 |
| 2026-09-29 12:00 |
15:44:05.90 |
-26:22:22.5 |
HIP 77170 |
18.54 |
| 2026-09-30 00:00 |
15:44:29.68 |
-26:23:00.9 |
HIP 77170 |
13.65 |
| 2026-09-30 12:00 |
15:44:53.59 |
-26:23:39.7 |
HIP 77170 |
9.28 |
| 2026-10-01 00:00 |
15:45:17.63 |
-26:24:18.9 |
HIP 77170 |
6.65 |
| 2026-10-01 12:00 |
15:45:41.79 |
-26:24:58.6 |
HIP 77170 |
7.83 |
| 2026-10-02 00:00 |
15:46:06.08 |
-26:25:38.5 |
HIP 77288 |
9.33 |
| 2026-10-02 12:00 |
15:46:30.48 |
-26:26:18.9 |
HIP 77288 |
4.96 |
| 2026-10-03 00:00 |
15:46:55.01 |
-26:26:59.6 |
HIP 77288 |
4.79 |
| 2026-10-03 12:00 |
15:47:19.67 |
-26:27:40.7 |
HIP 77288 |
9.11 |
| 2026-10-04 00:00 |
15:47:44.44 |
-26:28:22.1 |
HIP 77405 |
6.43 |
| 2026-10-04 12:00 |
15:48:09.34 |
-26:29:03.9 |
HIP 77405 |
3.04 |
| 2026-10-05 00:00 |
15:48:34.35 |
-26:29:46.0 |
HIP 77405 |
6.37 |
| 2026-10-05 12:00 |
15:48:59.49 |
-26:30:28.5 |
HIP 77405 |
11.66 |
| 2026-10-06 00:00 |
15:49:24.74 |
-26:31:11.2 |
HIP 77611 |
16.86 |
| 2026-10-06 12:00 |
15:49:50.11 |
-26:31:54.4 |
HIP 77611 |
11.17 |
| 2026-10-07 00:00 |
15:50:15.60 |
-26:32:37.8 |
HIP 77611 |
5.54 |
| 2026-10-07 12:00 |
15:50:41.21 |
-26:33:21.6 |
HIP 77611 |
1.61 |
| 2026-10-08 00:00 |
15:51:06.93 |
-26:34:05.6 |
HIP 77611 |
6.44 |
| 2026-10-08 12:00 |
15:51:32.76 |
-26:34:50.0 |
HIP 77611 |
12.18 |
| 2026-10-09 00:00 |
15:51:58.71 |
-26:35:34.7 |
HIP 77736 |
16.92 |
| 2026-10-09 12:00 |
15:52:24.78 |
-26:36:19.6 |
HIP 77736 |
17.38 |
| 2026-10-10 00:00 |
15:52:50.95 |
-26:37:04.9 |
HIP 77736 |
19.69 |
| 2026-10-10 12:00 |
15:53:17.24 |
-26:37:50.4 |
HIP 77736 |
23.33 |
| 2026-10-11 00:00 |
15:53:43.64 |
-26:38:36.2 |
HIP 77953 |
20.26 |