C/1967 C2 (Wild)
メタデータ
| 項目 |
値 |
| Designation |
C/1967 C2 (Wild) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1967-03-02T12:44:10.069440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:17Z |
| Obs used |
37 |
| NEO |
- |
| M1 |
9.900 |
| 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) |
1967-03-07.0000000 |
| e |
1.00000000 |
| q (au) |
1.327154 |
| a (au) |
- |
| i (deg) |
99.105076 |
| Ω (om, deg) |
306.845094 |
| ω (w, deg) |
173.262851 |
| M (ma, deg) |
- |
等級
散乱 + 全体線形
$$
M_a = (8.767 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
8.767 |
| 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
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
21:19:10.36 |
-37:20:52.7 |
HIP 105392 |
25.89 |
| 2026-02-03 12:00 |
21:19:12.05 |
-37:20:45.8 |
HIP 105392 |
25.55 |
| 2026-02-04 00:00 |
21:19:13.73 |
-37:20:39.0 |
HIP 105392 |
25.22 |
| 2026-02-04 12:00 |
21:19:15.41 |
-37:20:32.3 |
HIP 105392 |
24.89 |
| 2026-02-05 00:00 |
21:19:17.09 |
-37:20:25.6 |
HIP 105392 |
24.57 |
| 2026-02-05 12:00 |
21:19:18.77 |
-37:20:19.0 |
HIP 105392 |
24.24 |
| 2026-02-06 00:00 |
21:19:20.46 |
-37:20:12.5 |
HIP 105392 |
23.91 |
| 2026-02-06 12:00 |
21:19:22.14 |
-37:20:06.0 |
HIP 105392 |
23.59 |
| 2026-02-07 00:00 |
21:19:23.82 |
-37:19:59.6 |
HIP 105392 |
23.27 |
| 2026-02-07 12:00 |
21:19:25.51 |
-37:19:53.3 |
HIP 105392 |
22.94 |
| 2026-02-08 00:00 |
21:19:27.19 |
-37:19:47.0 |
HIP 105392 |
22.62 |
| 2026-02-08 12:00 |
21:19:28.87 |
-37:19:40.8 |
HIP 105392 |
22.31 |
| 2026-02-09 00:00 |
21:19:30.55 |
-37:19:34.7 |
HIP 105392 |
21.99 |
| 2026-02-09 12:00 |
21:19:32.23 |
-37:19:28.6 |
HIP 105392 |
21.68 |
| 2026-02-10 00:00 |
21:19:33.91 |
-37:19:22.7 |
HIP 105392 |
21.36 |
| 2026-02-10 12:00 |
21:19:35.59 |
-37:19:16.7 |
HIP 105392 |
21.05 |
| 2026-02-11 00:00 |
21:19:37.27 |
-37:19:10.9 |
HIP 105392 |
20.75 |
| 2026-02-11 12:00 |
21:19:38.95 |
-37:19:05.1 |
HIP 105392 |
20.44 |
| 2026-02-12 00:00 |
21:19:40.62 |
-37:18:59.4 |
HIP 105392 |
20.14 |
| 2026-02-12 12:00 |
21:19:42.30 |
-37:18:53.8 |
HIP 105392 |
19.84 |
| 2026-02-13 00:00 |
21:19:43.97 |
-37:18:48.2 |
HIP 105392 |
19.54 |
| 2026-02-13 12:00 |
21:19:45.64 |
-37:18:42.7 |
HIP 105392 |
19.24 |
| 2026-02-14 00:00 |
21:19:47.31 |
-37:18:37.3 |
HIP 105392 |
18.95 |
| 2026-02-14 12:00 |
21:19:48.98 |
-37:18:31.9 |
HIP 105392 |
18.66 |
| 2026-02-15 00:00 |
21:19:50.65 |
-37:18:26.7 |
HIP 105392 |
18.38 |
| 2026-02-15 12:00 |
21:19:52.31 |
-37:18:21.5 |
HIP 105392 |
18.09 |
| 2026-02-16 00:00 |
21:19:53.97 |
-37:18:16.4 |
HIP 105392 |
17.81 |
| 2026-02-16 12:00 |
21:19:55.63 |
-37:18:11.3 |
HIP 105392 |
17.54 |
| 2026-02-17 00:00 |
21:19:57.28 |
-37:18:06.3 |
HIP 105392 |
17.26 |
| 2026-02-17 12:00 |
21:19:58.94 |
-37:18:01.4 |
HIP 105392 |
16.99 |
| 2026-02-18 00:00 |
21:20:00.59 |
-37:17:56.6 |
HIP 105392 |
16.73 |
| 2026-02-18 12:00 |
21:20:02.24 |
-37:17:51.9 |
HIP 105392 |
16.47 |
| 2026-02-19 00:00 |
21:20:03.88 |
-37:17:47.2 |
HIP 105392 |
16.21 |
| 2026-02-19 12:00 |
21:20:05.52 |
-37:17:42.6 |
HIP 105392 |
15.96 |
| 2026-02-20 00:00 |
21:20:07.16 |
-37:17:38.1 |
HIP 105392 |
15.71 |
| 2026-02-20 12:00 |
21:20:08.80 |
-37:17:33.7 |
HIP 105392 |
15.46 |
| 2026-02-21 00:00 |
21:20:10.43 |
-37:17:29.3 |
HIP 105392 |
15.23 |
| 2026-02-21 12:00 |
21:20:12.05 |
-37:17:25.0 |
HIP 105392 |
14.99 |
| 2026-02-22 00:00 |
21:20:13.68 |
-37:17:20.8 |
HIP 105392 |
14.76 |
| 2026-02-22 12:00 |
21:20:15.30 |
-37:17:16.7 |
HIP 105392 |
14.54 |
| 2026-02-23 00:00 |
21:20:16.91 |
-37:17:12.6 |
HIP 105392 |
14.32 |
| 2026-02-23 12:00 |
21:20:18.52 |
-37:17:08.7 |
HIP 105392 |
14.11 |
| 2026-02-24 00:00 |
21:20:20.13 |
-37:17:04.8 |
HIP 105392 |
13.91 |