メタデータ
| 項目 |
値 |
| Designation |
C/1993 F1 (Mueller) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1992-08-04T20:31:29.202240Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:43Z |
| Obs used |
102 |
| NEO |
- |
| M1 |
6.400 |
| K1 |
9.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
1993-08-21.0000000 |
| e |
1.00540314 |
| q (au) |
5.901066 |
| a (au) |
-1092.155238 |
| i (deg) |
53.940235 |
| Ω (om, deg) |
77.516468 |
| ω (w, deg) |
62.030036 |
| M (ma, deg) |
0.010408 |
等級
散乱 + 全体線形
$$
M_a = (0.970 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
0.970 |
| n |
6.000 |
| gf |
0.997 |
| gb |
-1.000 |
| 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) |
| 2026-06-01 00:00 |
18:10:07.40 |
-42:14:48.2 |
HIP 89031 |
9.48 |
| 2026-06-01 12:00 |
18:10:04.76 |
-42:14:54.4 |
HIP 89031 |
9.46 |
| 2026-06-02 00:00 |
18:10:02.11 |
-42:15:00.5 |
HIP 89031 |
9.47 |
| 2026-06-02 12:00 |
18:09:59.45 |
-42:15:06.6 |
HIP 89031 |
9.50 |
| 2026-06-03 00:00 |
18:09:56.78 |
-42:15:12.5 |
HIP 89031 |
9.57 |
| 2026-06-03 12:00 |
18:09:54.11 |
-42:15:18.4 |
HIP 89031 |
9.66 |
| 2026-06-04 00:00 |
18:09:51.42 |
-42:15:24.2 |
HIP 89031 |
9.78 |
| 2026-06-04 12:00 |
18:09:48.73 |
-42:15:29.9 |
HIP 89031 |
9.92 |
| 2026-06-05 00:00 |
18:09:46.02 |
-42:15:35.5 |
HIP 89031 |
10.09 |
| 2026-06-05 12:00 |
18:09:43.31 |
-42:15:41.0 |
HIP 89031 |
10.29 |
| 2026-06-06 00:00 |
18:09:40.59 |
-42:15:46.4 |
HIP 89031 |
10.50 |
| 2026-06-06 12:00 |
18:09:37.87 |
-42:15:51.8 |
HIP 89031 |
10.74 |
| 2026-06-07 00:00 |
18:09:35.13 |
-42:15:57.0 |
HIP 89031 |
11.00 |
| 2026-06-07 12:00 |
18:09:32.39 |
-42:16:02.2 |
HIP 89031 |
11.28 |
| 2026-06-08 00:00 |
18:09:29.64 |
-42:16:07.3 |
HIP 89031 |
11.58 |
| 2026-06-08 12:00 |
18:09:26.88 |
-42:16:12.2 |
HIP 89031 |
11.90 |
| 2026-06-09 00:00 |
18:09:24.12 |
-42:16:17.1 |
HIP 89031 |
12.23 |
| 2026-06-09 12:00 |
18:09:21.35 |
-42:16:21.9 |
HIP 89031 |
12.57 |
| 2026-06-10 00:00 |
18:09:18.58 |
-42:16:26.6 |
HIP 89031 |
12.93 |
| 2026-06-10 12:00 |
18:09:15.79 |
-42:16:31.3 |
HIP 89031 |
13.30 |
| 2026-06-11 00:00 |
18:09:13.01 |
-42:16:35.8 |
HIP 89031 |
13.68 |
| 2026-06-11 12:00 |
18:09:10.21 |
-42:16:40.2 |
HIP 89031 |
14.07 |
| 2026-06-12 00:00 |
18:09:07.41 |
-42:16:44.6 |
HIP 89031 |
14.48 |
| 2026-06-12 12:00 |
18:09:04.61 |
-42:16:48.8 |
HIP 89031 |
14.89 |
| 2026-06-13 00:00 |
18:09:01.80 |
-42:16:53.0 |
HIP 89031 |
15.31 |
| 2026-06-13 12:00 |
18:08:58.99 |
-42:16:57.0 |
HIP 89031 |
15.73 |
| 2026-06-14 00:00 |
18:08:56.17 |
-42:17:01.0 |
HIP 89031 |
16.17 |
| 2026-06-14 12:00 |
18:08:53.34 |
-42:17:04.9 |
HIP 89031 |
16.61 |
| 2026-06-15 00:00 |
18:08:50.52 |
-42:17:08.7 |
HIP 89031 |
17.06 |
| 2026-06-15 12:00 |
18:08:47.69 |
-42:17:12.4 |
HIP 89031 |
17.51 |
| 2026-06-16 00:00 |
18:08:44.85 |
-42:17:16.0 |
HIP 89031 |
17.97 |
| 2026-06-16 12:00 |
18:08:42.01 |
-42:17:19.5 |
HIP 89031 |
18.43 |
| 2026-06-17 00:00 |
18:08:39.17 |
-42:17:22.9 |
HIP 89031 |
18.90 |
| 2026-06-17 12:00 |
18:08:36.33 |
-42:17:26.2 |
HIP 89031 |
19.37 |
| 2026-06-18 00:00 |
18:08:33.48 |
-42:17:29.4 |
HIP 89031 |
19.85 |
| 2026-06-18 12:00 |
18:08:30.64 |
-42:17:32.5 |
HIP 89031 |
20.32 |
| 2026-06-19 00:00 |
18:08:27.79 |
-42:17:35.5 |
HIP 89031 |
20.81 |
| 2026-06-19 12:00 |
18:08:24.93 |
-42:17:38.5 |
HIP 89031 |
21.29 |
| 2026-06-20 00:00 |
18:08:22.08 |
-42:17:41.3 |
HIP 89031 |
21.78 |
| 2026-06-20 12:00 |
18:08:19.22 |
-42:17:44.1 |
HIP 89031 |
22.27 |
| 2026-06-21 00:00 |
18:08:16.37 |
-42:17:46.7 |
HIP 88903 |
22.70 |
| 2026-06-21 12:00 |
18:08:13.51 |
-42:17:49.3 |
HIP 88903 |
22.83 |
| 2026-06-22 00:00 |
18:08:10.65 |
-42:17:51.7 |
HIP 88903 |
22.96 |