416P/Scotti
メタデータ
| 項目 |
値 |
| Designation |
416P/Scotti |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2013-02-07T12:56:21.298560Z |
| Orbit solution date (soln_date, UTC) |
2025-04-24T09:42:34Z |
| Obs used |
138 |
| NEO |
- |
| M1 |
16.100 |
| K1 |
10.000 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2015-12-07.0000000 |
| e |
0.45570137 |
| q (au) |
2.180164 |
| a (au) |
4.005456 |
| i (deg) |
3.365426 |
| Ω (om, deg) |
355.801740 |
| ω (w, deg) |
134.673507 |
| M (ma, deg) |
126.940382 |
等級
散乱 + 全体線形
$$
M_a = (15.729 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
15.729 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.558 |
| 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 |
21:56:38.96 |
-13:55:11.2 |
HIP 108318 |
6.51 |
| 2026-02-03 12:00 |
21:57:01.61 |
-13:53:04.9 |
HIP 108318 |
6.81 |
| 2026-02-04 00:00 |
21:57:24.28 |
-13:50:58.5 |
HIP 108318 |
10.94 |
| 2026-02-04 12:00 |
21:57:46.97 |
-13:48:51.9 |
HIP 108318 |
16.20 |
| 2026-02-05 00:00 |
21:58:09.67 |
-13:46:45.0 |
HIP 108318 |
21.80 |
| 2026-02-05 12:00 |
21:58:32.39 |
-13:44:38.0 |
HIP 108318 |
27.53 |
| 2026-02-06 00:00 |
21:58:55.13 |
-13:42:30.7 |
HIP 108647 |
25.13 |
| 2026-02-06 12:00 |
21:59:17.89 |
-13:40:23.3 |
HIP 108647 |
19.99 |
| 2026-02-07 00:00 |
21:59:40.66 |
-13:38:15.6 |
HIP 108647 |
15.41 |
| 2026-02-07 12:00 |
22:00:03.45 |
-13:36:07.8 |
HIP 108647 |
12.07 |
| 2026-02-08 00:00 |
22:00:26.25 |
-13:33:59.8 |
HIP 108647 |
11.14 |
| 2026-02-08 12:00 |
22:00:49.06 |
-13:31:51.6 |
HIP 108647 |
13.16 |
| 2026-02-09 00:00 |
22:01:11.89 |
-13:29:43.2 |
HIP 108647 |
17.12 |
| 2026-02-09 12:00 |
22:01:34.73 |
-13:27:34.6 |
HIP 108647 |
21.99 |
| 2026-02-10 00:00 |
22:01:57.58 |
-13:25:25.9 |
HIP 108692 |
27.01 |
| 2026-02-10 12:00 |
22:02:20.45 |
-13:23:17.0 |
HIP 108692 |
28.38 |
| 2026-02-11 00:00 |
22:02:43.32 |
-13:21:07.9 |
HIP 108931 |
28.34 |
| 2026-02-11 12:00 |
22:03:06.20 |
-13:18:58.7 |
HIP 108931 |
22.99 |
| 2026-02-12 00:00 |
22:03:29.09 |
-13:16:49.3 |
HIP 108931 |
18.04 |
| 2026-02-12 12:00 |
22:03:51.99 |
-13:14:39.8 |
HIP 108931 |
13.91 |
| 2026-02-13 00:00 |
22:04:14.90 |
-13:12:30.1 |
HIP 108931 |
11.53 |
| 2026-02-13 12:00 |
22:04:37.82 |
-13:10:20.3 |
HIP 109001 |
11.59 |
| 2026-02-14 00:00 |
22:05:00.74 |
-13:08:10.3 |
HIP 109001 |
8.58 |
| 2026-02-14 12:00 |
22:05:23.67 |
-13:06:00.2 |
HIP 109001 |
9.20 |
| 2026-02-15 00:00 |
22:05:46.60 |
-13:03:49.9 |
HIP 109001 |
12.94 |
| 2026-02-15 12:00 |
22:06:09.53 |
-13:01:39.6 |
HIP 109001 |
17.95 |
| 2026-02-16 00:00 |
22:06:32.47 |
-12:59:29.0 |
HIP 109001 |
23.43 |
| 2026-02-16 12:00 |
22:06:55.41 |
-12:57:18.4 |
HIP 109170 |
26.63 |
| 2026-02-17 00:00 |
22:07:18.36 |
-12:55:07.7 |
HIP 109170 |
25.44 |
| 2026-02-17 12:00 |
22:07:41.30 |
-12:52:56.8 |
HIP 109170 |
25.64 |
| 2026-02-18 00:00 |
22:08:04.25 |
-12:50:45.9 |
HIP 109317 |
26.97 |
| 2026-02-18 12:00 |
22:08:27.19 |
-12:48:34.8 |
HIP 109317 |
23.09 |
| 2026-02-19 00:00 |
22:08:50.13 |
-12:46:23.6 |
HIP 109317 |
20.26 |
| 2026-02-19 12:00 |
22:09:13.08 |
-12:44:12.4 |
HIP 109317 |
18.99 |
| 2026-02-20 00:00 |
22:09:36.02 |
-12:42:01.0 |
HIP 109317 |
19.56 |
| 2026-02-20 12:00 |
22:09:58.95 |
-12:39:49.6 |
HIP 109528 |
21.43 |
| 2026-02-21 00:00 |
22:10:21.88 |
-12:37:38.0 |
HIP 109528 |
18.65 |
| 2026-02-21 12:00 |
22:10:44.81 |
-12:35:26.4 |
HIP 109528 |
17.56 |
| 2026-02-22 00:00 |
22:11:07.73 |
-12:33:14.8 |
HIP 109528 |
18.47 |
| 2026-02-22 12:00 |
22:11:30.65 |
-12:31:03.0 |
HIP 109528 |
21.12 |
| 2026-02-23 00:00 |
22:11:53.56 |
-12:28:51.2 |
HIP 109528 |
24.97 |
| 2026-02-23 12:00 |
22:12:16.46 |
-12:26:39.3 |
HIP 109528 |
29.54 |
| 2026-02-24 00:00 |
22:12:39.35 |
-12:24:27.4 |
HIP 109811 |
28.71 |