429P/LINEAR-Hill
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) |
| 2026-02-03 00:00 |
16:02:25.17 |
-27:59:11.7 |
HIP 78523 |
24.39 |
| 2026-02-03 12:00 |
16:02:41.45 |
-28:00:31.8 |
HIP 78523 |
24.51 |
| 2026-02-04 00:00 |
16:02:57.59 |
-28:01:51.5 |
HIP 78696 |
24.64 |
| 2026-02-04 12:00 |
16:03:13.58 |
-28:03:11.0 |
HIP 78696 |
24.31 |
| 2026-02-05 00:00 |
16:03:29.42 |
-28:04:30.2 |
HIP 78696 |
24.57 |
| 2026-02-05 12:00 |
16:03:45.11 |
-28:05:49.2 |
HIP 78696 |
25.37 |
| 2026-02-06 00:00 |
16:04:00.65 |
-28:07:07.8 |
HIP 78696 |
26.67 |
| 2026-02-06 12:00 |
16:04:16.04 |
-28:08:26.1 |
HIP 78696 |
28.38 |
| 2026-02-07 00:00 |
16:04:31.27 |
-28:09:44.2 |
HIP 78696 |
30.41 |
| 2026-02-07 12:00 |
16:04:46.35 |
-28:11:01.9 |
HIP 78696 |
32.70 |
| 2026-02-08 00:00 |
16:05:01.27 |
-28:12:19.4 |
HIP 78696 |
35.18 |
| 2026-02-08 12:00 |
16:05:16.03 |
-28:13:36.5 |
HIP 78912 |
35.05 |
| 2026-02-09 00:00 |
16:05:30.64 |
-28:14:53.4 |
HIP 78912 |
34.87 |
| 2026-02-09 12:00 |
16:05:45.08 |
-28:16:10.0 |
HIP 78912 |
35.04 |
| 2026-02-10 00:00 |
16:05:59.37 |
-28:17:26.2 |
HIP 78912 |
35.54 |
| 2026-02-10 12:00 |
16:06:13.49 |
-28:18:42.2 |
HIP 78912 |
36.35 |
| 2026-02-11 00:00 |
16:06:27.44 |
-28:19:57.8 |
HIP 78988 |
34.31 |
| 2026-02-11 12:00 |
16:06:41.23 |
-28:21:13.2 |
HIP 78988 |
32.13 |
| 2026-02-12 00:00 |
16:06:54.86 |
-28:22:28.2 |
HIP 78988 |
30.16 |
| 2026-02-12 12:00 |
16:07:08.32 |
-28:23:43.0 |
HIP 78988 |
28.44 |
| 2026-02-13 00:00 |
16:07:21.60 |
-28:24:57.4 |
HIP 78988 |
26.99 |
| 2026-02-13 12:00 |
16:07:34.72 |
-28:26:11.5 |
HIP 78988 |
25.86 |
| 2026-02-14 00:00 |
16:07:47.66 |
-28:27:25.3 |
HIP 78988 |
25.06 |
| 2026-02-14 12:00 |
16:08:00.43 |
-28:28:38.7 |
HIP 78988 |
24.62 |
| 2026-02-15 00:00 |
16:08:13.03 |
-28:29:51.9 |
HIP 78988 |
24.55 |
| 2026-02-15 12:00 |
16:08:25.45 |
-28:31:04.7 |
HIP 78988 |
24.83 |
| 2026-02-16 00:00 |
16:08:37.69 |
-28:32:17.2 |
HIP 78988 |
25.43 |
| 2026-02-16 12:00 |
16:08:49.76 |
-28:33:29.4 |
HIP 79073 |
25.19 |
| 2026-02-17 00:00 |
16:09:01.64 |
-28:34:41.2 |
HIP 79073 |
24.63 |
| 2026-02-17 12:00 |
16:09:13.35 |
-28:35:52.7 |
HIP 79073 |
24.38 |
| 2026-02-18 00:00 |
16:09:24.87 |
-28:37:03.9 |
HIP 79073 |
24.44 |
| 2026-02-18 12:00 |
16:09:36.21 |
-28:38:14.8 |
HIP 79073 |
24.80 |
| 2026-02-19 00:00 |
16:09:47.37 |
-28:39:25.3 |
HIP 79073 |
25.43 |
| 2026-02-19 12:00 |
16:09:58.34 |
-28:40:35.4 |
HIP 79073 |
26.30 |
| 2026-02-20 00:00 |
16:10:09.12 |
-28:41:45.3 |
HIP 79073 |
27.37 |
| 2026-02-20 12:00 |
16:10:19.71 |
-28:42:54.8 |
HIP 79073 |
28.62 |
| 2026-02-21 00:00 |
16:10:30.12 |
-28:44:03.9 |
HIP 79403 |
28.46 |
| 2026-02-21 12:00 |
16:10:40.34 |
-28:45:12.7 |
HIP 79403 |
25.96 |
| 2026-02-22 00:00 |
16:10:50.36 |
-28:46:21.1 |
HIP 79403 |
23.51 |
| 2026-02-22 12:00 |
16:11:00.19 |
-28:47:29.2 |
HIP 79403 |
21.10 |
| 2026-02-23 00:00 |
16:11:09.83 |
-28:48:37.0 |
HIP 79403 |
18.74 |
| 2026-02-23 12:00 |
16:11:19.28 |
-28:49:44.3 |
HIP 79403 |
16.42 |
| 2026-02-24 00:00 |
16:11:28.53 |
-28:50:51.4 |
HIP 79403 |
14.15 |