C/1986 N1 (Churyumov-Solodovnikov)
メタデータ
| 項目 |
値 |
| Designation |
C/1986 N1 (Churyumov-Solodovnikov) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1986-05-06T10:49:52.250880Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:33Z |
| Obs used |
86 |
| NEO |
- |
| M1 |
8.300 |
| 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) |
1987-01-14.0000000 |
| e |
0.99920711 |
| q (au) |
2.642130 |
| a (au) |
3332.287983 |
| i (deg) |
114.918049 |
| Ω (om, deg) |
134.617578 |
| ω (w, deg) |
157.743449 |
| M (ma, deg) |
0.001294 |
等級
散乱 + 全体線形
$$
M_a = (9.540 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
9.540 |
| n |
2.000 |
| gf |
0.835 |
| gb |
-0.865 |
| k |
0.999 |
| δ90 |
5.854 |
| 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 |
09:35:05.97 |
-29:34:11.1 |
HIP 47100 |
14.44 |
| 2026-02-03 12:00 |
09:35:03.87 |
-29:34:06.1 |
HIP 47100 |
14.73 |
| 2026-02-04 00:00 |
09:35:01.77 |
-29:34:00.9 |
HIP 47100 |
15.03 |
| 2026-02-04 12:00 |
09:34:59.66 |
-29:33:55.6 |
HIP 47100 |
15.33 |
| 2026-02-05 00:00 |
09:34:57.56 |
-29:33:50.0 |
HIP 47100 |
15.65 |
| 2026-02-05 12:00 |
09:34:55.45 |
-29:33:44.3 |
HIP 46943 |
15.78 |
| 2026-02-06 00:00 |
09:34:53.34 |
-29:33:38.4 |
HIP 46943 |
15.51 |
| 2026-02-06 12:00 |
09:34:51.23 |
-29:33:32.3 |
HIP 46943 |
15.25 |
| 2026-02-07 00:00 |
09:34:49.12 |
-29:33:26.0 |
HIP 46943 |
15.01 |
| 2026-02-07 12:00 |
09:34:47.00 |
-29:33:19.6 |
HIP 46943 |
14.77 |
| 2026-02-08 00:00 |
09:34:44.89 |
-29:33:13.0 |
HIP 46943 |
14.55 |
| 2026-02-08 12:00 |
09:34:42.77 |
-29:33:06.2 |
HIP 46943 |
14.35 |
| 2026-02-09 00:00 |
09:34:40.66 |
-29:32:59.2 |
HIP 46943 |
14.16 |
| 2026-02-09 12:00 |
09:34:38.54 |
-29:32:52.0 |
HIP 46943 |
13.99 |
| 2026-02-10 00:00 |
09:34:36.42 |
-29:32:44.7 |
HIP 46943 |
13.83 |
| 2026-02-10 12:00 |
09:34:34.31 |
-29:32:37.1 |
HIP 46943 |
13.69 |
| 2026-02-11 00:00 |
09:34:32.19 |
-29:32:29.4 |
HIP 46943 |
13.57 |
| 2026-02-11 12:00 |
09:34:30.07 |
-29:32:21.5 |
HIP 46943 |
13.46 |
| 2026-02-12 00:00 |
09:34:27.96 |
-29:32:13.5 |
HIP 46943 |
13.38 |
| 2026-02-12 12:00 |
09:34:25.84 |
-29:32:05.3 |
HIP 46943 |
13.32 |
| 2026-02-13 00:00 |
09:34:23.73 |
-29:31:56.8 |
HIP 46943 |
13.27 |
| 2026-02-13 12:00 |
09:34:21.61 |
-29:31:48.3 |
HIP 46943 |
13.25 |
| 2026-02-14 00:00 |
09:34:19.50 |
-29:31:39.5 |
HIP 46943 |
13.24 |
| 2026-02-14 12:00 |
09:34:17.39 |
-29:31:30.6 |
HIP 46943 |
13.26 |
| 2026-02-15 00:00 |
09:34:15.28 |
-29:31:21.5 |
HIP 46943 |
13.29 |
| 2026-02-15 12:00 |
09:34:13.17 |
-29:31:12.2 |
HIP 46943 |
13.35 |
| 2026-02-16 00:00 |
09:34:11.06 |
-29:31:02.7 |
HIP 46943 |
13.42 |
| 2026-02-16 12:00 |
09:34:08.95 |
-29:30:53.1 |
HIP 46943 |
13.52 |
| 2026-02-17 00:00 |
09:34:06.85 |
-29:30:43.3 |
HIP 46943 |
13.64 |
| 2026-02-17 12:00 |
09:34:04.75 |
-29:30:33.3 |
HIP 46943 |
13.77 |
| 2026-02-18 00:00 |
09:34:02.65 |
-29:30:23.2 |
HIP 46943 |
13.92 |
| 2026-02-18 12:00 |
09:34:00.56 |
-29:30:12.9 |
HIP 46943 |
14.10 |
| 2026-02-19 00:00 |
09:33:58.46 |
-29:30:02.4 |
HIP 46943 |
14.28 |
| 2026-02-19 12:00 |
09:33:56.37 |
-29:29:51.8 |
HIP 46943 |
14.49 |
| 2026-02-20 00:00 |
09:33:54.29 |
-29:29:41.0 |
HIP 46943 |
14.71 |
| 2026-02-20 12:00 |
09:33:52.20 |
-29:29:30.0 |
HIP 46943 |
14.95 |
| 2026-02-21 00:00 |
09:33:50.12 |
-29:29:18.9 |
HIP 46943 |
15.20 |
| 2026-02-21 12:00 |
09:33:48.05 |
-29:29:07.6 |
HIP 46943 |
15.46 |
| 2026-02-22 00:00 |
09:33:45.98 |
-29:28:56.2 |
HIP 46943 |
15.74 |
| 2026-02-22 12:00 |
09:33:43.91 |
-29:28:44.5 |
HIP 46943 |
16.03 |
| 2026-02-23 00:00 |
09:33:41.84 |
-29:28:32.8 |
HIP 46943 |
16.33 |
| 2026-02-23 12:00 |
09:33:39.78 |
-29:28:20.8 |
HIP 46943 |
16.65 |
| 2026-02-24 00:00 |
09:33:37.73 |
-29:28:08.7 |
HIP 46943 |
16.97 |