C/1966 P1 (Kilston)
メタデータ
| 項目 |
値 |
| Designation |
C/1966 P1 (Kilston) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1966-10-28T01:52:48.731520Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:17Z |
| Obs used |
208 |
| NEO |
- |
| M1 |
5.000 |
| K1 |
8.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
1966-09-09.0000000 |
| e |
0.99948025 |
| q (au) |
2.384769 |
| a (au) |
4588.291435 |
| i (deg) |
40.264536 |
| Ω (om, deg) |
156.051601 |
| ω (w, deg) |
154.485693 |
| M (ma, deg) |
359.999844 |
等級
散乱 + 全体線形
$$
M_a = (5.337 + 3.100\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
5.337 |
| n |
3.100 |
| gf |
0.886 |
| gb |
-0.500 |
| k |
0.926 |
| δ90 |
1.000 |
| 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 |
07:41:02.66 |
-06:27:13.6 |
HIP 37420 |
16.09 |
| 2026-02-03 12:00 |
07:41:01.34 |
-06:27:06.8 |
HIP 37420 |
16.16 |
| 2026-02-04 00:00 |
07:41:00.02 |
-06:26:59.9 |
HIP 37420 |
16.25 |
| 2026-02-04 12:00 |
07:40:58.70 |
-06:26:52.9 |
HIP 37420 |
16.34 |
| 2026-02-05 00:00 |
07:40:57.39 |
-06:26:45.8 |
HIP 37420 |
16.43 |
| 2026-02-05 12:00 |
07:40:56.08 |
-06:26:38.7 |
HIP 37420 |
16.54 |
| 2026-02-06 00:00 |
07:40:54.78 |
-06:26:31.5 |
HIP 37420 |
16.66 |
| 2026-02-06 12:00 |
07:40:53.48 |
-06:26:24.3 |
HIP 37420 |
16.78 |
| 2026-02-07 00:00 |
07:40:52.19 |
-06:26:16.9 |
HIP 37420 |
16.91 |
| 2026-02-07 12:00 |
07:40:50.91 |
-06:26:09.5 |
HIP 37420 |
17.04 |
| 2026-02-08 00:00 |
07:40:49.63 |
-06:26:02.0 |
HIP 37420 |
17.19 |
| 2026-02-08 12:00 |
07:40:48.35 |
-06:25:54.5 |
HIP 37420 |
17.33 |
| 2026-02-09 00:00 |
07:40:47.08 |
-06:25:46.9 |
HIP 37420 |
17.49 |
| 2026-02-09 12:00 |
07:40:45.82 |
-06:25:39.2 |
HIP 37420 |
17.65 |
| 2026-02-10 00:00 |
07:40:44.56 |
-06:25:31.5 |
HIP 37333 |
17.40 |
| 2026-02-10 12:00 |
07:40:43.31 |
-06:25:23.7 |
HIP 37333 |
17.07 |
| 2026-02-11 00:00 |
07:40:42.06 |
-06:25:15.8 |
HIP 37333 |
16.75 |
| 2026-02-11 12:00 |
07:40:40.82 |
-06:25:07.9 |
HIP 37333 |
16.42 |
| 2026-02-12 00:00 |
07:40:39.59 |
-06:24:59.9 |
HIP 37333 |
16.10 |
| 2026-02-12 12:00 |
07:40:38.36 |
-06:24:51.8 |
HIP 37333 |
15.78 |
| 2026-02-13 00:00 |
07:40:37.14 |
-06:24:43.7 |
HIP 37333 |
15.46 |
| 2026-02-13 12:00 |
07:40:35.93 |
-06:24:35.5 |
HIP 37333 |
15.14 |
| 2026-02-14 00:00 |
07:40:34.72 |
-06:24:27.2 |
HIP 37333 |
14.82 |
| 2026-02-14 12:00 |
07:40:33.52 |
-06:24:18.9 |
HIP 37333 |
14.50 |
| 2026-02-15 00:00 |
07:40:32.33 |
-06:24:10.6 |
HIP 37333 |
14.19 |
| 2026-02-15 12:00 |
07:40:31.14 |
-06:24:02.1 |
HIP 37333 |
13.87 |
| 2026-02-16 00:00 |
07:40:29.96 |
-06:23:53.6 |
HIP 37333 |
13.56 |
| 2026-02-16 12:00 |
07:40:28.79 |
-06:23:45.1 |
HIP 37333 |
13.25 |
| 2026-02-17 00:00 |
07:40:27.62 |
-06:23:36.5 |
HIP 37333 |
12.93 |
| 2026-02-17 12:00 |
07:40:26.46 |
-06:23:27.8 |
HIP 37333 |
12.63 |
| 2026-02-18 00:00 |
07:40:25.31 |
-06:23:19.1 |
HIP 37333 |
12.32 |
| 2026-02-18 12:00 |
07:40:24.17 |
-06:23:10.3 |
HIP 37333 |
12.01 |
| 2026-02-19 00:00 |
07:40:23.04 |
-06:23:01.5 |
HIP 37333 |
11.70 |
| 2026-02-19 12:00 |
07:40:21.91 |
-06:22:52.6 |
HIP 37333 |
11.40 |
| 2026-02-20 00:00 |
07:40:20.79 |
-06:22:43.7 |
HIP 37333 |
11.10 |
| 2026-02-20 12:00 |
07:40:19.68 |
-06:22:34.7 |
HIP 37333 |
10.80 |
| 2026-02-21 00:00 |
07:40:18.57 |
-06:22:25.7 |
HIP 37333 |
10.50 |
| 2026-02-21 12:00 |
07:40:17.48 |
-06:22:16.6 |
HIP 37333 |
10.20 |
| 2026-02-22 00:00 |
07:40:16.39 |
-06:22:07.5 |
HIP 37333 |
9.90 |
| 2026-02-22 12:00 |
07:40:15.31 |
-06:21:58.3 |
HIP 37333 |
9.61 |
| 2026-02-23 00:00 |
07:40:14.24 |
-06:21:49.1 |
HIP 37333 |
9.31 |
| 2026-02-23 12:00 |
07:40:13.18 |
-06:21:39.8 |
HIP 37333 |
9.02 |
| 2026-02-24 00:00 |
07:40:12.12 |
-06:21:30.5 |
HIP 37333 |
8.73 |