メタデータ
| 項目 |
値 |
| Designation |
C/2011 L6 (Boattini) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2011-01-22T18:57:09.518400Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:52Z |
| Obs used |
56 |
| NEO |
- |
| M1 |
13.200 |
| 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) |
2011-08-20.0000000 |
| e |
1.00373776 |
| q (au) |
6.787629 |
| a (au) |
-1815.962524 |
| i (deg) |
171.456247 |
| Ω (om, deg) |
214.482658 |
| ω (w, deg) |
331.598726 |
| M (ma, deg) |
0.002665 |
等級
散乱 + 全体線形
$$
M_a = (11.410 + 2.155\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
11.410 |
| n |
2.155 |
| gf |
0.999 |
| gb |
-0.859 |
| k |
1.000 |
| 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) |
| 2026-07-29 00:00 |
08:17:53.66 |
+28:07:55.5 |
HIP 40779 |
20.65 |
| 2026-07-29 12:00 |
08:17:57.31 |
+28:07:45.0 |
HIP 40779 |
19.93 |
| 2026-07-30 00:00 |
08:18:00.96 |
+28:07:34.7 |
HIP 40779 |
19.22 |
| 2026-07-30 12:00 |
08:18:04.60 |
+28:07:24.4 |
HIP 40779 |
18.52 |
| 2026-07-31 00:00 |
08:18:08.25 |
+28:07:14.1 |
HIP 40779 |
17.82 |
| 2026-07-31 12:00 |
08:18:11.89 |
+28:07:04.0 |
HIP 40779 |
17.14 |
| 2026-08-01 00:00 |
08:18:15.52 |
+28:06:53.9 |
HIP 40779 |
16.47 |
| 2026-08-01 12:00 |
08:18:19.15 |
+28:06:43.9 |
HIP 40779 |
15.82 |
| 2026-08-02 00:00 |
08:18:22.78 |
+28:06:34.0 |
HIP 40779 |
15.18 |
| 2026-08-02 12:00 |
08:18:26.40 |
+28:06:24.2 |
HIP 40779 |
14.56 |
| 2026-08-03 00:00 |
08:18:30.02 |
+28:06:14.4 |
HIP 40779 |
13.96 |
| 2026-08-03 12:00 |
08:18:33.63 |
+28:06:04.7 |
HIP 40779 |
13.38 |
| 2026-08-04 00:00 |
08:18:37.24 |
+28:05:55.1 |
HIP 40779 |
12.83 |
| 2026-08-04 12:00 |
08:18:40.84 |
+28:05:45.6 |
HIP 40779 |
12.31 |
| 2026-08-05 00:00 |
08:18:44.44 |
+28:05:36.1 |
HIP 40779 |
11.82 |
| 2026-08-05 12:00 |
08:18:48.03 |
+28:05:26.8 |
HIP 40779 |
11.37 |
| 2026-08-06 00:00 |
08:18:51.61 |
+28:05:17.5 |
HIP 40779 |
10.95 |
| 2026-08-06 12:00 |
08:18:55.19 |
+28:05:08.3 |
HIP 40779 |
10.58 |
| 2026-08-07 00:00 |
08:18:58.76 |
+28:04:59.2 |
HIP 40779 |
10.26 |
| 2026-08-07 12:00 |
08:19:02.32 |
+28:04:50.2 |
HIP 40779 |
10.00 |
| 2026-08-08 00:00 |
08:19:05.88 |
+28:04:41.2 |
HIP 40779 |
9.79 |
| 2026-08-08 12:00 |
08:19:09.42 |
+28:04:32.4 |
HIP 40779 |
9.64 |
| 2026-08-09 00:00 |
08:19:12.96 |
+28:04:23.6 |
HIP 40779 |
9.56 |
| 2026-08-09 12:00 |
08:19:16.50 |
+28:04:14.9 |
HIP 40779 |
9.54 |
| 2026-08-10 00:00 |
08:19:20.02 |
+28:04:06.4 |
HIP 40779 |
9.58 |
| 2026-08-10 12:00 |
08:19:23.53 |
+28:03:57.9 |
HIP 40779 |
9.69 |
| 2026-08-11 00:00 |
08:19:27.04 |
+28:03:49.5 |
HIP 40779 |
9.86 |
| 2026-08-11 12:00 |
08:19:30.53 |
+28:03:41.1 |
HIP 40779 |
10.08 |
| 2026-08-12 00:00 |
08:19:34.02 |
+28:03:32.9 |
HIP 40779 |
10.36 |
| 2026-08-12 12:00 |
08:19:37.49 |
+28:03:24.8 |
HIP 40779 |
10.68 |
| 2026-08-13 00:00 |
08:19:40.96 |
+28:03:16.8 |
HIP 40779 |
11.05 |
| 2026-08-13 12:00 |
08:19:44.41 |
+28:03:08.8 |
HIP 40779 |
11.46 |
| 2026-08-14 00:00 |
08:19:47.86 |
+28:03:01.0 |
HIP 40779 |
11.90 |
| 2026-08-14 12:00 |
08:19:51.29 |
+28:02:53.2 |
HIP 40779 |
12.37 |
| 2026-08-15 00:00 |
08:19:54.71 |
+28:02:45.6 |
HIP 40779 |
12.86 |
| 2026-08-15 12:00 |
08:19:58.12 |
+28:02:38.0 |
HIP 40779 |
13.38 |
| 2026-08-16 00:00 |
08:20:01.52 |
+28:02:30.6 |
HIP 40779 |
13.92 |
| 2026-08-16 12:00 |
08:20:04.90 |
+28:02:23.3 |
HIP 40779 |
14.47 |
| 2026-08-17 00:00 |
08:20:08.28 |
+28:02:16.0 |
HIP 40779 |
15.04 |
| 2026-08-17 12:00 |
08:20:11.64 |
+28:02:08.9 |
HIP 40779 |
15.62 |
| 2026-08-18 00:00 |
08:20:14.98 |
+28:02:01.8 |
HIP 40779 |
16.22 |
| 2026-08-18 12:00 |
08:20:18.32 |
+28:01:54.9 |
HIP 40779 |
16.82 |
| 2026-08-19 00:00 |
08:20:21.64 |
+28:01:48.0 |
HIP 40779 |
17.43 |