メタデータ
| 項目 |
値 |
| Designation |
124P/Mrkos |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-04-09T18:30:28.154880Z |
| Orbit solution date (soln_date, UTC) |
2026-05-28T12:12:24Z |
| Obs used |
3409 |
| NEO |
- |
| M1 |
16.500 |
| K1 |
4.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2016-03-20.0000000 |
| e |
0.50400928 |
| q (au) |
1.645821 |
| a (au) |
3.318250 |
| i (deg) |
31.532560 |
| Ω (om, deg) |
0.402133 |
| ω (w, deg) |
183.771212 |
| M (ma, deg) |
115.808028 |
等級
散乱 + 全体線形
$$
M_a = (16.678 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
16.678 |
| n |
2.000 |
| gf |
0.800 |
| gb |
-0.729 |
| k |
0.953 |
| 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
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) |
| 2026-07-29 00:00 |
11:23:35.67 |
-06:17:23.0 |
HIP 55666 |
25.52 |
| 2026-07-29 12:00 |
11:24:33.98 |
-06:29:11.3 |
HIP 55666 |
34.73 |
| 2026-07-30 00:00 |
11:25:32.36 |
-06:40:58.7 |
HIP 55635 |
37.48 |
| 2026-07-30 12:00 |
11:26:30.82 |
-06:52:45.5 |
HIP 55969 |
35.16 |
| 2026-07-31 00:00 |
11:27:29.34 |
-07:04:31.4 |
HIP 55969 |
16.73 |
| 2026-07-31 12:00 |
11:28:27.94 |
-07:16:16.6 |
HIP 55969 |
4.75 |
| 2026-08-01 00:00 |
11:29:26.62 |
-07:28:00.9 |
HIP 55969 |
21.54 |
| 2026-08-01 12:00 |
11:30:25.37 |
-07:39:44.5 |
HIP 56157 |
26.34 |
| 2026-08-02 00:00 |
11:31:24.19 |
-07:51:27.4 |
HIP 56157 |
17.70 |
| 2026-08-02 12:00 |
11:32:23.10 |
-08:03:09.4 |
HIP 56318 |
14.80 |
| 2026-08-03 00:00 |
11:33:22.07 |
-08:14:50.6 |
HIP 56318 |
26.60 |
| 2026-08-03 12:00 |
11:34:21.13 |
-08:26:31.0 |
HIP 56490 |
31.79 |
| 2026-08-04 00:00 |
11:35:20.26 |
-08:38:10.7 |
HIP 56643 |
28.38 |
| 2026-08-04 12:00 |
11:36:19.48 |
-08:49:49.5 |
HIP 56643 |
9.69 |
| 2026-08-05 00:00 |
11:37:18.77 |
-09:01:27.5 |
HIP 56643 |
9.06 |
| 2026-08-05 12:00 |
11:38:18.15 |
-09:13:04.7 |
HIP 56631 |
24.72 |
| 2026-08-06 00:00 |
11:39:17.60 |
-09:24:41.1 |
HIP 56883 |
6.33 |
| 2026-08-06 12:00 |
11:40:17.14 |
-09:36:16.7 |
HIP 56883 |
12.45 |
| 2026-08-07 00:00 |
11:41:16.76 |
-09:47:51.5 |
HIP 56980 |
9.60 |
| 2026-08-07 12:00 |
11:42:16.46 |
-09:59:25.4 |
HIP 56980 |
21.52 |
| 2026-08-08 00:00 |
11:43:16.25 |
-10:10:58.5 |
HIP 57218 |
28.59 |
| 2026-08-08 12:00 |
11:44:16.12 |
-10:22:30.7 |
HIP 57218 |
15.79 |
| 2026-08-09 00:00 |
11:45:16.08 |
-10:34:02.1 |
HIP 57218 |
19.53 |
| 2026-08-09 12:00 |
11:46:16.13 |
-10:45:32.7 |
HIP 57482 |
15.50 |
| 2026-08-10 00:00 |
11:47:16.26 |
-10:57:02.4 |
HIP 57482 |
4.26 |
| 2026-08-10 12:00 |
11:48:16.48 |
-11:08:31.3 |
HIP 57482 |
22.28 |
| 2026-08-11 00:00 |
11:49:16.78 |
-11:19:59.3 |
HIP 57712 |
21.35 |
| 2026-08-11 12:00 |
11:50:17.18 |
-11:31:26.4 |
HIP 57800 |
22.49 |
| 2026-08-12 00:00 |
11:51:17.66 |
-11:42:52.7 |
HIP 57869 |
27.49 |
| 2026-08-12 12:00 |
11:52:18.23 |
-11:54:18.1 |
HIP 57819 |
21.84 |
| 2026-08-13 00:00 |
11:53:18.89 |
-12:05:42.5 |
HIP 57819 |
29.10 |
| 2026-08-13 12:00 |
11:54:19.65 |
-12:17:06.1 |
HIP 58091 |
28.70 |
| 2026-08-14 00:00 |
11:55:20.49 |
-12:28:28.8 |
HIP 58091 |
18.02 |
| 2026-08-14 12:00 |
11:56:21.42 |
-12:39:50.6 |
HIP 58234 |
17.74 |
| 2026-08-15 00:00 |
11:57:22.44 |
-12:51:11.4 |
HIP 58234 |
30.42 |
| 2026-08-15 12:00 |
11:58:23.55 |
-13:02:31.3 |
HIP 58234 |
47.28 |
| 2026-08-16 00:00 |
11:59:24.76 |
-13:13:50.3 |
HIP 58264 |
47.86 |
| 2026-08-16 12:00 |
12:00:26.06 |
-13:25:08.3 |
HIP 58749 |
42.37 |
| 2026-08-17 00:00 |
12:01:27.45 |
-13:36:25.3 |
HIP 58749 |
38.80 |
| 2026-08-17 12:00 |
12:02:28.93 |
-13:47:41.4 |
HIP 58668 |
42.36 |
| 2026-08-18 00:00 |
12:03:30.50 |
-13:58:56.6 |
HIP 58668 |
39.10 |
| 2026-08-18 12:00 |
12:04:32.17 |
-14:10:10.7 |
HIP 58934 |
22.84 |
| 2026-08-19 00:00 |
12:05:33.94 |
-14:21:23.8 |
HIP 58934 |
12.99 |