56P/Slaughter-Burnham
メタデータ
| 項目 |
値 |
| Designation |
56P/Slaughter-Burnham |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-07-18T01:58:14.727360Z |
| Orbit solution date (soln_date, UTC) |
2023-10-16T10:35:53Z |
| Obs used |
1986 |
| NEO |
- |
| M1 |
9.300 |
| K1 |
14.750 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2013-08-12.0000000 |
| e |
0.50729701 |
| q (au) |
2.505871 |
| a (au) |
5.085966 |
| i (deg) |
8.147198 |
| Ω (om, deg) |
346.037614 |
| ω (w, deg) |
44.217463 |
| M (ma, deg) |
267.962120 |
等級
散乱 + 全体線形
$$
M_a = (7.594 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
7.594 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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
残差 (区間線形)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 開始日 (UTC) |
終了日 (UTC) |
a |
b |
| 2015-07-24 |
2016-07-15 |
+13.5328 |
-5.371 |
| 2016-07-20 |
2018-01-23 |
+3.6320 |
-1.563 |
log10 r = log10(太陽距離/AU)、Δ = 地球距離(AU)
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
18:36:08.37 |
-30:01:10.1 |
HIP 91149 |
7.28 |
| 2026-02-03 12:00 |
18:36:37.79 |
-30:01:00.1 |
HIP 91149 |
12.67 |
| 2026-02-04 00:00 |
18:37:07.15 |
-30:00:50.0 |
HIP 91365 |
14.37 |
| 2026-02-04 12:00 |
18:37:36.45 |
-30:00:39.8 |
HIP 91365 |
9.58 |
| 2026-02-05 00:00 |
18:38:05.70 |
-30:00:29.6 |
HIP 91365 |
7.60 |
| 2026-02-05 12:00 |
18:38:34.89 |
-30:00:19.3 |
HIP 91424 |
2.03 |
| 2026-02-06 00:00 |
18:39:04.02 |
-30:00:09.0 |
HIP 91424 |
5.03 |
| 2026-02-06 12:00 |
18:39:33.09 |
-29:59:58.6 |
HIP 91424 |
11.22 |
| 2026-02-07 00:00 |
18:40:02.10 |
-29:59:48.2 |
HIP 91424 |
17.47 |
| 2026-02-07 12:00 |
18:40:31.05 |
-29:59:37.7 |
HIP 91424 |
23.72 |
| 2026-02-08 00:00 |
18:40:59.94 |
-29:59:27.1 |
HIP 91753 |
24.71 |
| 2026-02-08 12:00 |
18:41:28.77 |
-29:59:16.6 |
HIP 91753 |
19.79 |
| 2026-02-09 00:00 |
18:41:57.53 |
-29:59:05.9 |
HIP 91753 |
15.83 |
| 2026-02-09 12:00 |
18:42:26.22 |
-29:58:55.3 |
HIP 91753 |
13.68 |
| 2026-02-10 00:00 |
18:42:54.85 |
-29:58:44.6 |
HIP 91753 |
14.17 |
| 2026-02-10 12:00 |
18:43:23.42 |
-29:58:33.8 |
HIP 91753 |
17.05 |
| 2026-02-11 00:00 |
18:43:51.91 |
-29:58:23.1 |
HIP 91965 |
10.91 |
| 2026-02-11 12:00 |
18:44:20.34 |
-29:58:12.3 |
HIP 91965 |
4.78 |
| 2026-02-12 00:00 |
18:44:48.70 |
-29:58:01.5 |
HIP 91965 |
1.60 |
| 2026-02-12 12:00 |
18:45:16.98 |
-29:57:50.7 |
HIP 91991 |
5.08 |
| 2026-02-13 00:00 |
18:45:45.20 |
-29:57:39.8 |
HIP 91991 |
10.53 |
| 2026-02-13 12:00 |
18:46:13.34 |
-29:57:29.0 |
HIP 92152 |
9.22 |
| 2026-02-14 00:00 |
18:46:41.41 |
-29:57:18.1 |
HIP 92152 |
3.15 |
| 2026-02-14 12:00 |
18:47:09.40 |
-29:57:07.3 |
HIP 92152 |
2.96 |
| 2026-02-15 00:00 |
18:47:37.32 |
-29:56:56.4 |
HIP 92152 |
9.00 |
| 2026-02-15 12:00 |
18:48:05.16 |
-29:56:45.5 |
HIP 92304 |
12.86 |
| 2026-02-16 00:00 |
18:48:32.92 |
-29:56:34.7 |
HIP 92304 |
9.73 |
| 2026-02-16 12:00 |
18:49:00.60 |
-29:56:23.9 |
HIP 92304 |
9.81 |
| 2026-02-17 00:00 |
18:49:28.20 |
-29:56:13.0 |
HIP 92304 |
13.01 |
| 2026-02-17 12:00 |
18:49:55.72 |
-29:56:02.2 |
HIP 92304 |
17.70 |
| 2026-02-18 00:00 |
18:50:23.16 |
-29:55:51.4 |
HIP 92527 |
17.22 |
| 2026-02-18 12:00 |
18:50:50.52 |
-29:55:40.7 |
HIP 92527 |
13.46 |
| 2026-02-19 00:00 |
18:51:17.79 |
-29:55:30.0 |
HIP 92527 |
11.66 |
| 2026-02-19 12:00 |
18:51:44.98 |
-29:55:19.3 |
HIP 92527 |
12.66 |
| 2026-02-20 00:00 |
18:52:12.08 |
-29:55:08.6 |
HIP 92527 |
15.92 |
| 2026-02-20 12:00 |
18:52:39.09 |
-29:54:58.0 |
HIP 92527 |
20.37 |
| 2026-02-21 00:00 |
18:53:06.02 |
-29:54:47.4 |
HIP 92527 |
25.38 |
| 2026-02-21 12:00 |
18:53:32.85 |
-29:54:36.9 |
HIP 92527 |
30.66 |
| 2026-02-22 00:00 |
18:53:59.60 |
-29:54:26.5 |
HIP 92735 |
30.91 |
| 2026-02-22 12:00 |
18:54:26.25 |
-29:54:16.0 |
HIP 92966 |
28.40 |
| 2026-02-23 00:00 |
18:54:52.81 |
-29:54:05.7 |
HIP 92966 |
23.30 |
| 2026-02-23 12:00 |
18:55:19.28 |
-29:53:55.4 |
HIP 92966 |
18.61 |
| 2026-02-24 00:00 |
18:55:45.66 |
-29:53:45.2 |
HIP 92966 |
14.71 |