C/2013 J5 (Boattini)
メタデータ
| 項目 |
値 |
| Designation |
C/2013 J5 (Boattini) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2012-11-30T00:52:09.624000Z |
| Orbit solution date (soln_date, UTC) |
2022-07-06T03:12:22Z |
| Obs used |
74 |
| NEO |
- |
| M1 |
10.000 |
| K1 |
10.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2013-05-04.0000000 |
| e |
1.00247225 |
| q (au) |
4.905909 |
| a (au) |
-1984.387923 |
| i (deg) |
136.025000 |
| Ω (om, deg) |
256.785024 |
| ω (w, deg) |
19.174987 |
| M (ma, deg) |
0.001728 |
等級
散乱 + 全体線形
$$
M_a = (9.118 + 3.956\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
9.118 |
| n |
3.956 |
| gf |
0.991 |
| gb |
-0.797 |
| k |
1.000 |
| δ90 |
9.999 |
| 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 |
06:46:34.14 |
+44:39:09.1 |
HIP 32315 |
21.08 |
| 2026-02-03 12:00 |
06:46:28.27 |
+44:38:55.2 |
HIP 32315 |
20.04 |
| 2026-02-04 00:00 |
06:46:22.44 |
+44:38:41.0 |
HIP 32315 |
19.00 |
| 2026-02-04 12:00 |
06:46:16.64 |
+44:38:26.6 |
HIP 32315 |
17.97 |
| 2026-02-05 00:00 |
06:46:10.87 |
+44:38:12.1 |
HIP 32315 |
16.95 |
| 2026-02-05 12:00 |
06:46:05.14 |
+44:37:57.3 |
HIP 32315 |
15.93 |
| 2026-02-06 00:00 |
06:45:59.45 |
+44:37:42.2 |
HIP 32315 |
14.92 |
| 2026-02-06 12:00 |
06:45:53.79 |
+44:37:27.0 |
HIP 32315 |
13.93 |
| 2026-02-07 00:00 |
06:45:48.17 |
+44:37:11.6 |
HIP 32315 |
12.94 |
| 2026-02-07 12:00 |
06:45:42.59 |
+44:36:56.0 |
HIP 32315 |
11.96 |
| 2026-02-08 00:00 |
06:45:37.04 |
+44:36:40.1 |
HIP 32315 |
10.99 |
| 2026-02-08 12:00 |
06:45:31.53 |
+44:36:24.1 |
HIP 32315 |
10.05 |
| 2026-02-09 00:00 |
06:45:26.06 |
+44:36:07.8 |
HIP 32315 |
9.11 |
| 2026-02-09 12:00 |
06:45:20.63 |
+44:35:51.4 |
HIP 32315 |
8.20 |
| 2026-02-10 00:00 |
06:45:15.23 |
+44:35:34.7 |
HIP 32315 |
7.32 |
| 2026-02-10 12:00 |
06:45:09.88 |
+44:35:17.9 |
HIP 32315 |
6.47 |
| 2026-02-11 00:00 |
06:45:04.56 |
+44:35:00.8 |
HIP 32315 |
5.67 |
| 2026-02-11 12:00 |
06:44:59.29 |
+44:34:43.6 |
HIP 32315 |
4.94 |
| 2026-02-12 00:00 |
06:44:54.06 |
+44:34:26.1 |
HIP 32315 |
4.31 |
| 2026-02-12 12:00 |
06:44:48.86 |
+44:34:08.5 |
HIP 32315 |
3.83 |
| 2026-02-13 00:00 |
06:44:43.71 |
+44:33:50.7 |
HIP 32315 |
3.55 |
| 2026-02-13 12:00 |
06:44:38.60 |
+44:33:32.7 |
HIP 32315 |
3.51 |
| 2026-02-14 00:00 |
06:44:33.53 |
+44:33:14.5 |
HIP 32315 |
3.73 |
| 2026-02-14 12:00 |
06:44:28.51 |
+44:32:56.1 |
HIP 32315 |
4.14 |
| 2026-02-15 00:00 |
06:44:23.52 |
+44:32:37.5 |
HIP 32315 |
4.71 |
| 2026-02-15 12:00 |
06:44:18.58 |
+44:32:18.8 |
HIP 32315 |
5.37 |
| 2026-02-16 00:00 |
06:44:13.69 |
+44:31:59.9 |
HIP 32315 |
6.10 |
| 2026-02-16 12:00 |
06:44:08.83 |
+44:31:40.7 |
HIP 32315 |
6.87 |
| 2026-02-17 00:00 |
06:44:04.02 |
+44:31:21.5 |
HIP 32315 |
7.66 |
| 2026-02-17 12:00 |
06:43:59.26 |
+44:31:02.0 |
HIP 32315 |
8.47 |
| 2026-02-18 00:00 |
06:43:54.54 |
+44:30:42.4 |
HIP 32173 |
8.86 |
| 2026-02-18 12:00 |
06:43:49.86 |
+44:30:22.6 |
HIP 32173 |
8.07 |
| 2026-02-19 00:00 |
06:43:45.23 |
+44:30:02.6 |
HIP 32173 |
7.31 |
| 2026-02-19 12:00 |
06:43:40.65 |
+44:29:42.4 |
HIP 32173 |
6.59 |
| 2026-02-20 00:00 |
06:43:36.11 |
+44:29:22.1 |
HIP 32173 |
5.93 |
| 2026-02-20 12:00 |
06:43:31.62 |
+44:29:01.6 |
HIP 32173 |
5.34 |
| 2026-02-21 00:00 |
06:43:27.17 |
+44:28:41.0 |
HIP 32173 |
4.84 |
| 2026-02-21 12:00 |
06:43:22.77 |
+44:28:20.2 |
HIP 32173 |
4.46 |
| 2026-02-22 00:00 |
06:43:18.42 |
+44:27:59.2 |
HIP 32173 |
4.23 |
| 2026-02-22 12:00 |
06:43:14.12 |
+44:27:38.1 |
HIP 32173 |
4.17 |
| 2026-02-23 00:00 |
06:43:09.86 |
+44:27:16.9 |
HIP 32173 |
4.28 |
| 2026-02-23 12:00 |
06:43:05.65 |
+44:26:55.4 |
HIP 32173 |
4.55 |
| 2026-02-24 00:00 |
06:43:01.49 |
+44:26:33.9 |
HIP 32173 |
4.95 |