68P/Klemola
メタデータ
| 項目 |
値 |
| Designation |
68P/Klemola |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2019-11-11T19:47:30.373440Z |
| Orbit solution date (soln_date, UTC) |
2023-04-25T08:40:31Z |
| Obs used |
1680 |
| NEO |
- |
| M1 |
11.200 |
| K1 |
11.750 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2016-03-06.0000000 |
| e |
0.64034454 |
| q (au) |
1.762060 |
| a (au) |
4.899300 |
| i (deg) |
11.184340 |
| Ω (om, deg) |
175.299711 |
| ω (w, deg) |
153.835783 |
| M (ma, deg) |
237.681694 |
等級
散乱 + 全体線形
$$
M_a = (11.051 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
11.051 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.585 |
| k |
0.800 |
| 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 |
10:33:38.42 |
+04:28:53.4 |
HIP 51592 |
22.21 |
| 2026-02-03 12:00 |
10:33:27.50 |
+04:30:00.6 |
HIP 51592 |
19.27 |
| 2026-02-04 00:00 |
10:33:16.52 |
+04:31:08.4 |
HIP 51592 |
16.32 |
| 2026-02-04 12:00 |
10:33:05.48 |
+04:32:16.7 |
HIP 51592 |
13.36 |
| 2026-02-05 00:00 |
10:32:54.37 |
+04:33:25.5 |
HIP 51592 |
10.39 |
| 2026-02-05 12:00 |
10:32:43.21 |
+04:34:34.8 |
HIP 51592 |
7.42 |
| 2026-02-06 00:00 |
10:32:31.98 |
+04:35:44.6 |
HIP 51592 |
4.49 |
| 2026-02-06 12:00 |
10:32:20.70 |
+04:36:55.0 |
HIP 51592 |
1.88 |
| 2026-02-07 00:00 |
10:32:09.36 |
+04:38:05.8 |
HIP 51592 |
2.36 |
| 2026-02-07 12:00 |
10:31:57.96 |
+04:39:17.1 |
HIP 51592 |
5.15 |
| 2026-02-08 00:00 |
10:31:46.51 |
+04:40:28.9 |
HIP 51592 |
8.16 |
| 2026-02-08 12:00 |
10:31:35.01 |
+04:41:41.1 |
HIP 51592 |
11.24 |
| 2026-02-09 00:00 |
10:31:23.46 |
+04:42:53.8 |
HIP 51592 |
14.34 |
| 2026-02-09 12:00 |
10:31:11.86 |
+04:44:07.0 |
HIP 51555 |
15.46 |
| 2026-02-10 00:00 |
10:31:00.21 |
+04:45:20.6 |
HIP 51555 |
16.61 |
| 2026-02-10 12:00 |
10:30:48.51 |
+04:46:34.6 |
HIP 51555 |
18.24 |
| 2026-02-11 00:00 |
10:30:36.77 |
+04:47:49.1 |
HIP 51555 |
20.25 |
| 2026-02-11 12:00 |
10:30:24.98 |
+04:49:04.0 |
HIP 51344 |
21.24 |
| 2026-02-12 00:00 |
10:30:13.15 |
+04:50:19.2 |
HIP 51344 |
19.68 |
| 2026-02-12 12:00 |
10:30:01.28 |
+04:51:34.9 |
HIP 51344 |
18.55 |
| 2026-02-13 00:00 |
10:29:49.37 |
+04:52:51.0 |
HIP 51344 |
17.93 |
| 2026-02-13 12:00 |
10:29:37.42 |
+04:54:07.5 |
HIP 51344 |
17.88 |
| 2026-02-14 00:00 |
10:29:25.44 |
+04:55:24.3 |
HIP 51344 |
18.41 |
| 2026-02-14 12:00 |
10:29:13.42 |
+04:56:41.5 |
HIP 51344 |
19.49 |
| 2026-02-15 00:00 |
10:29:01.37 |
+04:57:59.1 |
HIP 51344 |
21.03 |
| 2026-02-15 12:00 |
10:28:49.29 |
+04:59:17.0 |
HIP 51344 |
22.94 |
| 2026-02-16 00:00 |
10:28:37.18 |
+05:00:35.2 |
HIP 51344 |
25.14 |
| 2026-02-16 12:00 |
10:28:25.04 |
+05:01:53.7 |
HIP 51344 |
27.57 |
| 2026-02-17 00:00 |
10:28:12.87 |
+05:03:12.6 |
HIP 51344 |
30.17 |
| 2026-02-17 12:00 |
10:28:00.68 |
+05:04:31.8 |
HIP 51344 |
32.91 |
| 2026-02-18 00:00 |
10:27:48.47 |
+05:05:51.3 |
HIP 51344 |
35.74 |
| 2026-02-18 12:00 |
10:27:36.23 |
+05:07:11.0 |
HIP 51017 |
33.75 |
| 2026-02-19 00:00 |
10:27:23.98 |
+05:08:31.1 |
HIP 51017 |
30.59 |
| 2026-02-19 12:00 |
10:27:11.71 |
+05:09:51.4 |
HIP 51017 |
27.48 |
| 2026-02-20 00:00 |
10:26:59.42 |
+05:11:11.9 |
HIP 51017 |
24.41 |
| 2026-02-20 12:00 |
10:26:47.11 |
+05:12:32.7 |
HIP 51017 |
21.43 |
| 2026-02-21 00:00 |
10:26:34.80 |
+05:13:53.7 |
HIP 51017 |
18.57 |
| 2026-02-21 12:00 |
10:26:22.47 |
+05:15:15.0 |
HIP 51017 |
15.89 |
| 2026-02-22 00:00 |
10:26:10.13 |
+05:16:36.4 |
HIP 51017 |
13.53 |
| 2026-02-22 12:00 |
10:25:57.79 |
+05:17:58.1 |
HIP 51017 |
11.66 |
| 2026-02-23 00:00 |
10:25:45.43 |
+05:19:20.0 |
HIP 51017 |
10.57 |
| 2026-02-23 12:00 |
10:25:33.08 |
+05:20:42.0 |
HIP 51017 |
10.49 |
| 2026-02-24 00:00 |
10:25:20.72 |
+05:22:04.2 |
HIP 51017 |
11.45 |