53P/Van Biesbroeck
メタデータ
| 項目 |
値 |
| Designation |
53P/Van Biesbroeck |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-04-30T19:32:35.502720Z |
| Orbit solution date (soln_date, UTC) |
2023-10-16T10:06:27Z |
| Obs used |
2920 |
| NEO |
- |
| M1 |
10.000 |
| K1 |
9.750 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2011-08-17.0000000 |
| e |
0.55105953 |
| q (au) |
2.426330 |
| a (au) |
5.404570 |
| i (deg) |
6.611182 |
| Ω (om, deg) |
148.898197 |
| ω (w, deg) |
134.264013 |
| M (ma, deg) |
225.168517 |
等級
散乱 + 全体線形
$$
M_a = (10.440 + 3.304\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
10.440 |
| n |
3.304 |
| gf |
0.851 |
| gb |
-0.843 |
| k |
0.999 |
| δ90 |
1.000 |
| 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 |
09:49:16.51 |
+12:24:56.0 |
HIP 48142 |
8.82 |
| 2026-02-03 12:00 |
09:49:02.55 |
+12:26:19.2 |
HIP 48142 |
5.68 |
| 2026-02-04 00:00 |
09:48:48.54 |
+12:27:42.7 |
HIP 48142 |
3.70 |
| 2026-02-04 12:00 |
09:48:34.48 |
+12:29:06.5 |
HIP 48142 |
4.75 |
| 2026-02-05 00:00 |
09:48:20.37 |
+12:30:30.4 |
HIP 48142 |
7.68 |
| 2026-02-05 12:00 |
09:48:06.21 |
+12:31:54.6 |
HIP 48142 |
11.11 |
| 2026-02-06 00:00 |
09:47:52.01 |
+12:33:19.1 |
HIP 48142 |
14.69 |
| 2026-02-06 12:00 |
09:47:37.76 |
+12:34:43.7 |
HIP 48142 |
18.35 |
| 2026-02-07 00:00 |
09:47:23.48 |
+12:36:08.5 |
HIP 48142 |
22.05 |
| 2026-02-07 12:00 |
09:47:09.15 |
+12:37:33.6 |
HIP 48142 |
25.77 |
| 2026-02-08 00:00 |
09:46:54.80 |
+12:38:58.8 |
HIP 48142 |
29.52 |
| 2026-02-08 12:00 |
09:46:40.40 |
+12:40:24.1 |
HIP 48142 |
33.28 |
| 2026-02-09 00:00 |
09:46:25.97 |
+12:41:49.6 |
HIP 47771 |
34.74 |
| 2026-02-09 12:00 |
09:46:11.52 |
+12:43:15.2 |
HIP 47771 |
32.53 |
| 2026-02-10 00:00 |
09:45:57.03 |
+12:44:41.0 |
HIP 47771 |
30.63 |
| 2026-02-10 12:00 |
09:45:42.53 |
+12:46:06.9 |
HIP 47771 |
29.11 |
| 2026-02-11 00:00 |
09:45:27.99 |
+12:47:32.9 |
HIP 47771 |
28.03 |
| 2026-02-11 12:00 |
09:45:13.44 |
+12:48:58.9 |
HIP 47771 |
27.44 |
| 2026-02-12 00:00 |
09:44:58.87 |
+12:50:25.1 |
HIP 47865 |
26.50 |
| 2026-02-12 12:00 |
09:44:44.28 |
+12:51:51.3 |
HIP 47683 |
25.57 |
| 2026-02-13 00:00 |
09:44:29.67 |
+12:53:17.6 |
HIP 47683 |
23.91 |
| 2026-02-13 12:00 |
09:44:15.06 |
+12:54:43.9 |
HIP 47683 |
22.78 |
| 2026-02-14 00:00 |
09:44:00.43 |
+12:56:10.2 |
HIP 47683 |
22.27 |
| 2026-02-14 12:00 |
09:43:45.80 |
+12:57:36.5 |
HIP 47683 |
22.41 |
| 2026-02-15 00:00 |
09:43:31.16 |
+12:59:02.9 |
HIP 47683 |
23.19 |
| 2026-02-15 12:00 |
09:43:16.52 |
+13:00:29.2 |
HIP 47683 |
24.57 |
| 2026-02-16 00:00 |
09:43:01.87 |
+13:01:55.5 |
HIP 47551 |
21.78 |
| 2026-02-16 12:00 |
09:42:47.23 |
+13:03:21.8 |
HIP 47551 |
19.17 |
| 2026-02-17 00:00 |
09:42:32.60 |
+13:04:48.1 |
HIP 47551 |
17.05 |
| 2026-02-17 12:00 |
09:42:17.97 |
+13:06:14.2 |
HIP 47551 |
15.59 |
| 2026-02-18 00:00 |
09:42:03.35 |
+13:07:40.3 |
HIP 47513 |
13.72 |
| 2026-02-18 12:00 |
09:41:48.73 |
+13:09:06.3 |
HIP 47513 |
9.88 |
| 2026-02-19 00:00 |
09:41:34.14 |
+13:10:32.3 |
HIP 47513 |
6.05 |
| 2026-02-19 12:00 |
09:41:19.56 |
+13:11:58.1 |
HIP 47513 |
2.23 |
| 2026-02-20 00:00 |
09:41:04.99 |
+13:13:23.8 |
HIP 47513 |
1.62 |
| 2026-02-20 12:00 |
09:40:50.45 |
+13:14:49.3 |
HIP 47513 |
5.42 |
| 2026-02-21 00:00 |
09:40:35.93 |
+13:16:14.7 |
HIP 47513 |
9.23 |
| 2026-02-21 12:00 |
09:40:21.44 |
+13:17:39.9 |
HIP 47513 |
13.03 |
| 2026-02-22 00:00 |
09:40:06.97 |
+13:19:05.0 |
HIP 47388 |
12.10 |
| 2026-02-22 12:00 |
09:39:52.53 |
+13:20:29.9 |
HIP 47388 |
8.76 |
| 2026-02-23 00:00 |
09:39:38.13 |
+13:21:54.6 |
HIP 47388 |
5.98 |
| 2026-02-23 12:00 |
09:39:23.75 |
+13:23:19.1 |
HIP 47388 |
4.83 |
| 2026-02-24 00:00 |
09:39:09.42 |
+13:24:43.3 |
HIP 47388 |
6.27 |