メタデータ
| 項目 |
値 |
| Designation |
124P/Mrkos |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-04-09T16:46:23.378880Z |
| Orbit solution date (soln_date, UTC) |
2026-03-31T09:42:36Z |
| Obs used |
3275 |
| 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) |
2015-10-05.0000000 |
| e |
0.50399290 |
| q (au) |
1.645688 |
| a (au) |
3.317871 |
| i (deg) |
31.530845 |
| Ω (om, deg) |
0.404159 |
| ω (w, deg) |
183.755611 |
| M (ma, deg) |
88.604423 |
等級
散乱 + 全体線形
$$
M_a = (17.997 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
17.997 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.676 |
| 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
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) |
| 2026-03-26 00:00 |
08:09:45.12 |
+48:01:15.6 |
HIP 39824 |
17.64 |
| 2026-03-26 12:00 |
08:10:00.76 |
+47:47:39.3 |
HIP 40089 |
18.53 |
| 2026-03-27 00:00 |
08:10:17.06 |
+47:34:01.8 |
HIP 40089 |
10.74 |
| 2026-03-27 12:00 |
08:10:34.00 |
+47:20:23.1 |
HIP 40089 |
16.49 |
| 2026-03-28 00:00 |
08:10:51.59 |
+47:06:43.5 |
HIP 40158 |
16.16 |
| 2026-03-28 12:00 |
08:11:09.80 |
+46:53:02.8 |
HIP 40158 |
10.05 |
| 2026-03-29 00:00 |
08:11:28.62 |
+46:39:21.2 |
HIP 40158 |
18.25 |
| 2026-03-29 12:00 |
08:11:48.05 |
+46:25:38.6 |
HIP 40195 |
26.46 |
| 2026-03-30 00:00 |
08:12:08.07 |
+46:11:55.3 |
HIP 40195 |
12.41 |
| 2026-03-30 12:00 |
08:12:28.68 |
+45:58:11.1 |
HIP 40195 |
2.84 |
| 2026-03-31 00:00 |
08:12:49.86 |
+45:44:26.3 |
HIP 40195 |
16.31 |
| 2026-03-31 12:00 |
08:13:11.61 |
+45:30:40.7 |
HIP 40352 |
12.63 |
| 2026-04-01 00:00 |
08:13:33.91 |
+45:16:54.4 |
HIP 40149 |
17.94 |
| 2026-04-01 12:00 |
08:13:56.76 |
+45:03:07.6 |
HIP 40332 |
19.77 |
| 2026-04-02 00:00 |
08:14:20.15 |
+44:49:20.2 |
HIP 40332 |
6.43 |
| 2026-04-02 12:00 |
08:14:44.07 |
+44:35:32.3 |
HIP 40332 |
10.40 |
| 2026-04-03 00:00 |
08:15:08.51 |
+44:21:43.9 |
HIP 40481 |
10.05 |
| 2026-04-03 12:00 |
08:15:33.46 |
+44:07:55.0 |
HIP 40481 |
9.68 |
| 2026-04-04 00:00 |
08:15:58.92 |
+43:54:05.8 |
HIP 40441 |
6.96 |
| 2026-04-04 12:00 |
08:16:24.87 |
+43:40:16.1 |
HIP 40632 |
17.52 |
| 2026-04-05 00:00 |
08:16:51.30 |
+43:26:26.2 |
HIP 40632 |
10.03 |
| 2026-04-05 12:00 |
08:17:18.22 |
+43:12:35.9 |
HIP 40562 |
5.61 |
| 2026-04-06 00:00 |
08:17:45.61 |
+42:58:45.3 |
HIP 40711 |
10.77 |
| 2026-04-06 12:00 |
08:18:13.47 |
+42:44:54.6 |
HIP 40711 |
9.13 |
| 2026-04-07 00:00 |
08:18:41.78 |
+42:31:03.6 |
HIP 40711 |
22.06 |
| 2026-04-07 12:00 |
08:19:10.54 |
+42:17:12.4 |
HIP 40898 |
20.96 |
| 2026-04-08 00:00 |
08:19:39.74 |
+42:03:21.1 |
HIP 40898 |
12.69 |
| 2026-04-08 12:00 |
08:20:09.38 |
+41:49:29.6 |
HIP 40898 |
17.98 |
| 2026-04-09 00:00 |
08:20:39.45 |
+41:35:38.1 |
HIP 40898 |
30.49 |
| 2026-04-09 12:00 |
08:21:09.93 |
+41:21:46.5 |
HIP 40770 |
36.71 |
| 2026-04-10 00:00 |
08:21:40.84 |
+41:07:54.9 |
HIP 41082 |
26.02 |
| 2026-04-10 12:00 |
08:22:12.15 |
+40:54:03.2 |
HIP 41082 |
11.45 |
| 2026-04-11 00:00 |
08:22:43.87 |
+40:40:11.6 |
HIP 41082 |
6.23 |
| 2026-04-11 12:00 |
08:23:15.98 |
+40:26:19.9 |
HIP 41056 |
7.05 |
| 2026-04-12 00:00 |
08:23:48.48 |
+40:12:28.4 |
HIP 41263 |
15.84 |
| 2026-04-12 12:00 |
08:24:21.36 |
+39:58:36.9 |
HIP 41263 |
21.28 |
| 2026-04-13 00:00 |
08:24:54.63 |
+39:44:45.5 |
HIP 41270 |
8.64 |
| 2026-04-13 12:00 |
08:25:28.26 |
+39:30:54.3 |
HIP 41270 |
6.68 |
| 2026-04-14 00:00 |
08:26:02.26 |
+39:17:03.1 |
HIP 41272 |
9.76 |
| 2026-04-14 12:00 |
08:26:36.62 |
+39:03:12.2 |
HIP 41382 |
0.78 |
| 2026-04-15 00:00 |
08:27:11.34 |
+38:49:21.4 |
HIP 41411 |
12.22 |
| 2026-04-15 12:00 |
08:27:46.40 |
+38:35:30.8 |
HIP 41630 |
23.93 |
| 2026-04-16 00:00 |
08:28:21.81 |
+38:21:40.4 |
HIP 41556 |
15.66 |