30P/Reinmuth 1
メタデータ
| 項目 |
値 |
| Designation |
30P/Reinmuth 1 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2017-08-19T01:40:55.568640Z |
| Orbit solution date (soln_date, UTC) |
2025-09-30T14:15:16Z |
| Obs used |
2543 |
| NEO |
- |
| M1 |
13.600 |
| K1 |
7.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2016-04-19.0000000 |
| e |
0.50225502 |
| q (au) |
1.876931 |
| a (au) |
3.770870 |
| i (deg) |
8.128534 |
| Ω (om, deg) |
119.715299 |
| ω (w, deg) |
13.245201 |
| M (ma, deg) |
294.440858 |
等級
散乱 + 全体線形
$$
M_a = (13.317 + 2.368\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
13.317 |
| n |
2.368 |
| gf |
0.999 |
| gb |
-0.504 |
| 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
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
17:49:52.88 |
-18:56:15.5 |
HIP 87176 |
17.74 |
| 2026-02-03 12:00 |
17:50:20.74 |
-18:56:18.2 |
HIP 87388 |
16.09 |
| 2026-02-04 00:00 |
17:50:48.47 |
-18:56:20.3 |
HIP 87388 |
9.74 |
| 2026-02-04 12:00 |
17:51:16.07 |
-18:56:22.1 |
HIP 87388 |
4.12 |
| 2026-02-05 00:00 |
17:51:43.55 |
-18:56:23.3 |
HIP 87388 |
4.91 |
| 2026-02-05 12:00 |
17:52:10.91 |
-18:56:24.1 |
HIP 87388 |
10.73 |
| 2026-02-06 00:00 |
17:52:38.14 |
-18:56:24.5 |
HIP 87568 |
11.04 |
| 2026-02-06 12:00 |
17:53:05.24 |
-18:56:24.4 |
HIP 87568 |
5.51 |
| 2026-02-07 00:00 |
17:53:32.22 |
-18:56:23.8 |
HIP 87568 |
4.55 |
| 2026-02-07 12:00 |
17:53:59.06 |
-18:56:22.8 |
HIP 87568 |
9.58 |
| 2026-02-08 00:00 |
17:54:25.78 |
-18:56:21.4 |
HIP 87568 |
15.58 |
| 2026-02-08 12:00 |
17:54:52.36 |
-18:56:19.5 |
HIP 87782 |
16.93 |
| 2026-02-09 00:00 |
17:55:18.81 |
-18:56:17.3 |
HIP 87782 |
11.82 |
| 2026-02-09 12:00 |
17:55:45.13 |
-18:56:14.6 |
HIP 87782 |
8.44 |
| 2026-02-10 00:00 |
17:56:11.31 |
-18:56:11.4 |
HIP 87832 |
7.43 |
| 2026-02-10 12:00 |
17:56:37.36 |
-18:56:07.9 |
HIP 87832 |
5.00 |
| 2026-02-11 00:00 |
17:57:03.27 |
-18:56:03.9 |
HIP 87873 |
1.00 |
| 2026-02-11 12:00 |
17:57:29.04 |
-18:55:59.6 |
HIP 87873 |
6.60 |
| 2026-02-12 00:00 |
17:57:54.67 |
-18:55:54.8 |
HIP 87881 |
12.28 |
| 2026-02-12 12:00 |
17:58:20.17 |
-18:55:49.7 |
HIP 87881 |
17.96 |
| 2026-02-13 00:00 |
17:58:45.52 |
-18:55:44.2 |
HIP 87881 |
23.77 |
| 2026-02-13 12:00 |
17:59:10.73 |
-18:55:38.2 |
HIP 88167 |
25.25 |
| 2026-02-14 00:00 |
17:59:35.79 |
-18:55:31.9 |
HIP 88167 |
21.67 |
| 2026-02-14 12:00 |
18:00:00.71 |
-18:55:25.3 |
HIP 88167 |
19.29 |
| 2026-02-15 00:00 |
18:00:25.49 |
-18:55:18.2 |
HIP 88167 |
18.56 |
| 2026-02-15 12:00 |
18:00:50.12 |
-18:55:10.8 |
HIP 88297 |
18.47 |
| 2026-02-16 00:00 |
18:01:14.60 |
-18:55:03.0 |
HIP 88297 |
14.40 |
| 2026-02-16 12:00 |
18:01:38.93 |
-18:54:54.9 |
HIP 88297 |
11.88 |
| 2026-02-17 00:00 |
18:02:03.11 |
-18:54:46.4 |
HIP 88297 |
11.87 |
| 2026-02-17 12:00 |
18:02:27.14 |
-18:54:37.6 |
HIP 88297 |
14.34 |
| 2026-02-18 00:00 |
18:02:51.02 |
-18:54:28.5 |
HIP 88341 |
16.82 |
| 2026-02-18 12:00 |
18:03:14.75 |
-18:54:19.0 |
HIP 88341 |
19.49 |
| 2026-02-19 00:00 |
18:03:38.32 |
-18:54:09.2 |
HIP 88477 |
22.48 |
| 2026-02-19 12:00 |
18:04:01.73 |
-18:53:59.0 |
HIP 88477 |
21.95 |
| 2026-02-20 00:00 |
18:04:24.99 |
-18:53:48.6 |
HIP 88477 |
22.79 |
| 2026-02-20 12:00 |
18:04:48.09 |
-18:53:37.8 |
HIP 88477 |
24.82 |
| 2026-02-21 00:00 |
18:05:11.03 |
-18:53:26.7 |
HIP 88704 |
21.70 |
| 2026-02-21 12:00 |
18:05:33.81 |
-18:53:15.3 |
HIP 88718 |
17.31 |
| 2026-02-22 00:00 |
18:05:56.43 |
-18:53:03.7 |
HIP 88718 |
12.49 |
| 2026-02-22 12:00 |
18:06:18.89 |
-18:52:51.7 |
HIP 88718 |
8.38 |
| 2026-02-23 00:00 |
18:06:41.19 |
-18:52:39.5 |
HIP 88718 |
6.40 |
| 2026-02-23 12:00 |
18:07:03.32 |
-18:52:26.9 |
HIP 88762 |
2.94 |
| 2026-02-24 00:00 |
18:07:25.29 |
-18:52:14.2 |
HIP 88762 |
3.58 |