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
$$
M_a = (14.233 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
14.233 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-03-26 00:00 |
16:14:11.82 |
-29:44:45.7 |
HIP 79473 |
14.77 |
| 2026-03-26 12:00 |
16:14:07.53 |
-29:45:23.5 |
HIP 79473 |
14.20 |
| 2026-03-27 00:00 |
16:14:03.00 |
-29:46:00.7 |
HIP 79473 |
13.65 |
| 2026-03-27 12:00 |
16:13:58.23 |
-29:46:37.3 |
HIP 79473 |
13.13 |
| 2026-03-28 00:00 |
16:13:53.23 |
-29:47:13.2 |
HIP 79473 |
12.66 |
| 2026-03-28 12:00 |
16:13:47.99 |
-29:47:48.4 |
HIP 79473 |
12.26 |
| 2026-03-29 00:00 |
16:13:42.52 |
-29:48:22.9 |
HIP 79473 |
11.94 |
| 2026-03-29 12:00 |
16:13:36.80 |
-29:48:56.8 |
HIP 79473 |
11.72 |
| 2026-03-30 00:00 |
16:13:30.85 |
-29:49:30.0 |
HIP 79473 |
11.63 |
| 2026-03-30 12:00 |
16:13:24.67 |
-29:50:02.5 |
HIP 79473 |
11.68 |
| 2026-03-31 00:00 |
16:13:18.25 |
-29:50:34.3 |
HIP 79473 |
11.89 |
| 2026-03-31 12:00 |
16:13:11.59 |
-29:51:05.4 |
HIP 79473 |
12.26 |
| 2026-04-01 00:00 |
16:13:04.70 |
-29:51:35.8 |
HIP 79473 |
12.81 |
| 2026-04-01 12:00 |
16:12:57.57 |
-29:52:05.5 |
HIP 79473 |
13.51 |
| 2026-04-02 00:00 |
16:12:50.21 |
-29:52:34.5 |
HIP 79473 |
14.37 |
| 2026-04-02 12:00 |
16:12:42.61 |
-29:53:02.7 |
HIP 79473 |
15.36 |
| 2026-04-03 00:00 |
16:12:34.78 |
-29:53:30.2 |
HIP 79430 |
15.65 |
| 2026-04-03 12:00 |
16:12:26.71 |
-29:53:57.0 |
HIP 79430 |
15.43 |
| 2026-04-04 00:00 |
16:12:18.41 |
-29:54:23.0 |
HIP 79430 |
15.44 |
| 2026-04-04 12:00 |
16:12:09.88 |
-29:54:48.2 |
HIP 79430 |
15.71 |
| 2026-04-05 00:00 |
16:12:01.11 |
-29:55:12.7 |
HIP 79430 |
16.23 |
| 2026-04-05 12:00 |
16:11:52.11 |
-29:55:36.4 |
HIP 79430 |
17.00 |
| 2026-04-06 00:00 |
16:11:42.88 |
-29:55:59.3 |
HIP 79430 |
18.00 |
| 2026-04-06 12:00 |
16:11:33.42 |
-29:56:21.4 |
HIP 79430 |
19.21 |
| 2026-04-07 00:00 |
16:11:23.73 |
-29:56:42.8 |
HIP 79430 |
20.60 |
| 2026-04-07 12:00 |
16:11:13.81 |
-29:57:03.3 |
HIP 79430 |
22.17 |
| 2026-04-08 00:00 |
16:11:03.66 |
-29:57:23.0 |
HIP 79430 |
23.88 |
| 2026-04-08 12:00 |
16:10:53.28 |
-29:57:41.9 |
HIP 79430 |
25.71 |
| 2026-04-09 00:00 |
16:10:42.67 |
-29:58:00.0 |
HIP 79127 |
27.58 |
| 2026-04-09 12:00 |
16:10:31.84 |
-29:58:17.2 |
HIP 79127 |
25.62 |
| 2026-04-10 00:00 |
16:10:20.78 |
-29:58:33.6 |
HIP 79127 |
23.71 |
| 2026-04-10 12:00 |
16:10:09.49 |
-29:58:49.1 |
HIP 79127 |
21.87 |
| 2026-04-11 00:00 |
16:09:57.98 |
-29:59:03.8 |
HIP 79127 |
20.15 |
| 2026-04-11 12:00 |
16:09:46.25 |
-29:59:17.6 |
HIP 79127 |
18.60 |
| 2026-04-12 00:00 |
16:09:34.30 |
-29:59:30.6 |
HIP 79127 |
17.28 |
| 2026-04-12 12:00 |
16:09:22.12 |
-29:59:42.7 |
HIP 79127 |
16.28 |
| 2026-04-13 00:00 |
16:09:09.73 |
-29:59:53.9 |
HIP 79127 |
15.67 |
| 2026-04-13 12:00 |
16:08:57.11 |
-30:00:04.2 |
HIP 79127 |
15.53 |
| 2026-04-14 00:00 |
16:08:44.28 |
-30:00:13.6 |
HIP 79127 |
15.89 |
| 2026-04-14 12:00 |
16:08:31.23 |
-30:00:22.1 |
HIP 79127 |
16.75 |
| 2026-04-15 00:00 |
16:08:17.97 |
-30:00:29.6 |
HIP 79127 |
18.05 |
| 2026-04-15 12:00 |
16:08:04.50 |
-30:00:36.3 |
HIP 78952 |
17.43 |
| 2026-04-16 00:00 |
16:07:50.81 |
-30:00:42.0 |
HIP 78952 |
15.31 |