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) |
| 2026-09-20 00:00 |
18:02:38.56 |
-42:03:56.8 |
HIP 88382 |
3.26 |
| 2026-09-20 12:00 |
18:02:38.55 |
-42:03:48.0 |
HIP 88382 |
3.35 |
| 2026-09-21 00:00 |
18:02:38.56 |
-42:03:39.2 |
HIP 88382 |
3.44 |
| 2026-09-21 12:00 |
18:02:38.60 |
-42:03:30.3 |
HIP 88382 |
3.53 |
| 2026-09-22 00:00 |
18:02:38.66 |
-42:03:21.5 |
HIP 88382 |
3.62 |
| 2026-09-22 12:00 |
18:02:38.74 |
-42:03:12.7 |
HIP 88382 |
3.71 |
| 2026-09-23 00:00 |
18:02:38.85 |
-42:03:03.9 |
HIP 88382 |
3.80 |
| 2026-09-23 12:00 |
18:02:38.99 |
-42:02:55.1 |
HIP 88382 |
3.90 |
| 2026-09-24 00:00 |
18:02:39.15 |
-42:02:46.3 |
HIP 88382 |
3.99 |
| 2026-09-24 12:00 |
18:02:39.34 |
-42:02:37.5 |
HIP 88382 |
4.08 |
| 2026-09-25 00:00 |
18:02:39.55 |
-42:02:28.7 |
HIP 88382 |
4.18 |
| 2026-09-25 12:00 |
18:02:39.78 |
-42:02:19.9 |
HIP 88382 |
4.27 |
| 2026-09-26 00:00 |
18:02:40.04 |
-42:02:11.1 |
HIP 88382 |
4.37 |
| 2026-09-26 12:00 |
18:02:40.33 |
-42:02:02.3 |
HIP 88382 |
4.46 |
| 2026-09-27 00:00 |
18:02:40.64 |
-42:01:53.5 |
HIP 88382 |
4.56 |
| 2026-09-27 12:00 |
18:02:40.98 |
-42:01:44.8 |
HIP 88382 |
4.66 |
| 2026-09-28 00:00 |
18:02:41.34 |
-42:01:36.0 |
HIP 88382 |
4.76 |
| 2026-09-28 12:00 |
18:02:41.72 |
-42:01:27.2 |
HIP 88382 |
4.86 |
| 2026-09-29 00:00 |
18:02:42.13 |
-42:01:18.5 |
HIP 88382 |
4.96 |
| 2026-09-29 12:00 |
18:02:42.57 |
-42:01:09.7 |
HIP 88382 |
5.06 |
| 2026-09-30 00:00 |
18:02:43.03 |
-42:01:01.0 |
HIP 88382 |
5.17 |
| 2026-09-30 12:00 |
18:02:43.51 |
-42:00:52.3 |
HIP 88382 |
5.28 |
| 2026-10-01 00:00 |
18:02:44.02 |
-42:00:43.6 |
HIP 88382 |
5.38 |
| 2026-10-01 12:00 |
18:02:44.55 |
-42:00:34.8 |
HIP 88382 |
5.49 |
| 2026-10-02 00:00 |
18:02:45.11 |
-42:00:26.2 |
HIP 88382 |
5.61 |
| 2026-10-02 12:00 |
18:02:45.70 |
-42:00:17.5 |
HIP 88382 |
5.72 |
| 2026-10-03 00:00 |
18:02:46.30 |
-42:00:08.8 |
HIP 88382 |
5.84 |
| 2026-10-03 12:00 |
18:02:46.94 |
-42:00:00.2 |
HIP 88382 |
5.96 |
| 2026-10-04 00:00 |
18:02:47.59 |
-41:59:51.6 |
HIP 88382 |
6.08 |
| 2026-10-04 12:00 |
18:02:48.28 |
-41:59:42.9 |
HIP 88382 |
6.20 |
| 2026-10-05 00:00 |
18:02:48.98 |
-41:59:34.3 |
HIP 88382 |
6.33 |
| 2026-10-05 12:00 |
18:02:49.71 |
-41:59:25.8 |
HIP 88382 |
6.46 |
| 2026-10-06 00:00 |
18:02:50.47 |
-41:59:17.2 |
HIP 88382 |
6.59 |
| 2026-10-06 12:00 |
18:02:51.25 |
-41:59:08.7 |
HIP 88382 |
6.72 |
| 2026-10-07 00:00 |
18:02:52.05 |
-41:59:00.1 |
HIP 88382 |
6.86 |
| 2026-10-07 12:00 |
18:02:52.88 |
-41:58:51.6 |
HIP 88382 |
7.00 |
| 2026-10-08 00:00 |
18:02:53.74 |
-41:58:43.2 |
HIP 88382 |
7.14 |
| 2026-10-08 12:00 |
18:02:54.61 |
-41:58:34.7 |
HIP 88382 |
7.29 |
| 2026-10-09 00:00 |
18:02:55.52 |
-41:58:26.3 |
HIP 88382 |
7.44 |
| 2026-10-09 12:00 |
18:02:56.44 |
-41:58:17.9 |
HIP 88382 |
7.59 |
| 2026-10-10 00:00 |
18:02:57.39 |
-41:58:09.5 |
HIP 88382 |
7.75 |
| 2026-10-10 12:00 |
18:02:58.37 |
-41:58:01.1 |
HIP 88382 |
7.91 |
| 2026-10-11 00:00 |
18:02:59.36 |
-41:57:52.8 |
HIP 88382 |
8.07 |