P/2010 J3 (McMillan)
メタデータ
| 項目 |
値 |
| Designation |
P/2010 J3 (McMillan) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-08-23T11:07:54.177600Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:44Z |
| Obs used |
524 |
| NEO |
- |
| M1 |
11.400 |
| K1 |
11.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2010-06-09.0000000 |
| e |
0.72682274 |
| q (au) |
2.455111 |
| a (au) |
8.987243 |
| i (deg) |
13.255078 |
| Ω (om, deg) |
106.661189 |
| ω (w, deg) |
157.312459 |
| M (ma, deg) |
357.239402 |
等級
散乱 + 全体線形
$$
M_a = (12.617 + 4.526\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
12.617 |
| n |
4.526 |
| gf |
1.000 |
| gb |
-0.527 |
| 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 |
05:51:38.86 |
+19:34:26.6 |
HIP 27697 |
4.44 |
| 2026-02-03 12:00 |
05:51:33.85 |
+19:34:35.0 |
HIP 27697 |
5.42 |
| 2026-02-04 00:00 |
05:51:28.90 |
+19:34:43.5 |
HIP 27697 |
6.46 |
| 2026-02-04 12:00 |
05:51:24.00 |
+19:34:52.1 |
HIP 27697 |
7.53 |
| 2026-02-05 00:00 |
05:51:19.17 |
+19:35:00.6 |
HIP 27697 |
8.61 |
| 2026-02-05 12:00 |
05:51:14.39 |
+19:35:09.3 |
HIP 27697 |
9.69 |
| 2026-02-06 00:00 |
05:51:09.68 |
+19:35:17.9 |
HIP 27697 |
10.77 |
| 2026-02-06 12:00 |
05:51:05.03 |
+19:35:26.7 |
HIP 27697 |
11.84 |
| 2026-02-07 00:00 |
05:51:00.43 |
+19:35:35.4 |
HIP 27697 |
12.91 |
| 2026-02-07 12:00 |
05:50:55.90 |
+19:35:44.3 |
HIP 27697 |
13.97 |
| 2026-02-08 00:00 |
05:50:51.43 |
+19:35:53.1 |
HIP 27697 |
15.01 |
| 2026-02-08 12:00 |
05:50:47.03 |
+19:36:02.0 |
HIP 27697 |
16.05 |
| 2026-02-09 00:00 |
05:50:42.68 |
+19:36:11.0 |
HIP 27697 |
17.07 |
| 2026-02-09 12:00 |
05:50:38.40 |
+19:36:19.9 |
HIP 27697 |
18.08 |
| 2026-02-10 00:00 |
05:50:34.18 |
+19:36:29.0 |
HIP 27697 |
19.07 |
| 2026-02-10 12:00 |
05:50:30.03 |
+19:36:38.1 |
HIP 27697 |
20.06 |
| 2026-02-11 00:00 |
05:50:25.94 |
+19:36:47.2 |
HIP 27697 |
21.03 |
| 2026-02-11 12:00 |
05:50:21.92 |
+19:36:56.3 |
HIP 27697 |
21.98 |
| 2026-02-12 00:00 |
05:50:17.96 |
+19:37:05.5 |
HIP 27697 |
22.92 |
| 2026-02-12 12:00 |
05:50:14.07 |
+19:37:14.8 |
HIP 27697 |
23.85 |
| 2026-02-13 00:00 |
05:50:10.24 |
+19:37:24.1 |
HIP 27697 |
24.76 |
| 2026-02-13 12:00 |
05:50:06.48 |
+19:37:33.4 |
HIP 27697 |
25.66 |
| 2026-02-14 00:00 |
05:50:02.78 |
+19:37:42.8 |
HIP 27697 |
26.54 |
| 2026-02-14 12:00 |
05:49:59.15 |
+19:37:52.2 |
HIP 27697 |
27.41 |
| 2026-02-15 00:00 |
05:49:55.59 |
+19:38:01.6 |
HIP 27697 |
28.26 |
| 2026-02-15 12:00 |
05:49:52.09 |
+19:38:11.1 |
HIP 27697 |
29.10 |
| 2026-02-16 00:00 |
05:49:48.67 |
+19:38:20.7 |
HIP 27697 |
29.92 |
| 2026-02-16 12:00 |
05:49:45.31 |
+19:38:30.2 |
HIP 27697 |
30.72 |
| 2026-02-17 00:00 |
05:49:42.02 |
+19:38:39.9 |
HIP 27697 |
31.51 |
| 2026-02-17 12:00 |
05:49:38.80 |
+19:38:49.5 |
HIP 27697 |
32.29 |
| 2026-02-18 00:00 |
05:49:35.64 |
+19:38:59.2 |
HIP 27697 |
33.05 |
| 2026-02-18 12:00 |
05:49:32.56 |
+19:39:08.9 |
HIP 27697 |
33.79 |
| 2026-02-19 00:00 |
05:49:29.55 |
+19:39:18.7 |
HIP 27697 |
34.52 |
| 2026-02-19 12:00 |
05:49:26.60 |
+19:39:28.5 |
HIP 27697 |
35.23 |
| 2026-02-20 00:00 |
05:49:23.73 |
+19:39:38.3 |
HIP 27465 |
35.53 |
| 2026-02-20 12:00 |
05:49:20.92 |
+19:39:48.2 |
HIP 27465 |
35.58 |
| 2026-02-21 00:00 |
05:49:18.19 |
+19:39:58.1 |
HIP 27465 |
35.66 |
| 2026-02-21 12:00 |
05:49:15.52 |
+19:40:08.0 |
HIP 27465 |
35.75 |
| 2026-02-22 00:00 |
05:49:12.93 |
+19:40:18.0 |
HIP 27465 |
35.85 |
| 2026-02-22 12:00 |
05:49:10.40 |
+19:40:28.0 |
HIP 27465 |
35.97 |
| 2026-02-23 00:00 |
05:49:07.95 |
+19:40:38.1 |
HIP 27465 |
36.09 |
| 2026-02-23 12:00 |
05:49:05.57 |
+19:40:48.1 |
HIP 27465 |
36.23 |
| 2026-02-24 00:00 |
05:49:03.26 |
+19:40:58.2 |
HIP 27465 |
36.38 |