メタデータ
| 項目 |
値 |
| Designation |
C/1994 E1 (Mueller) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1993-11-28T11:07:06.925440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:47Z |
| Obs used |
73 |
| NEO |
- |
| M1 |
11.000 |
| K1 |
12.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
1994-04-09.0000000 |
| e |
0.96835181 |
| q (au) |
1.751261 |
| a (au) |
55.335279 |
| i (deg) |
145.140300 |
| Ω (om, deg) |
5.175425 |
| ω (w, deg) |
98.924517 |
| M (ma, deg) |
0.314955 |
等級
散乱 + 全体線形
$$
M_a = (11.413 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
11.413 |
| n |
6.000 |
| gf |
0.997 |
| gb |
-0.583 |
| 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) |
| 2026-07-29 00:00 |
06:48:45.62 |
-11:05:56.8 |
HIP 32585 |
11.85 |
| 2026-07-29 12:00 |
06:48:47.66 |
-11:06:07.2 |
HIP 32585 |
12.35 |
| 2026-07-30 00:00 |
06:48:49.70 |
-11:06:17.8 |
HIP 32585 |
12.84 |
| 2026-07-30 12:00 |
06:48:51.72 |
-11:06:28.6 |
HIP 32585 |
13.34 |
| 2026-07-31 00:00 |
06:48:53.74 |
-11:06:39.4 |
HIP 32585 |
13.83 |
| 2026-07-31 12:00 |
06:48:55.75 |
-11:06:50.5 |
HIP 32585 |
14.33 |
| 2026-08-01 00:00 |
06:48:57.75 |
-11:07:01.6 |
HIP 32585 |
14.82 |
| 2026-08-01 12:00 |
06:48:59.75 |
-11:07:12.9 |
HIP 32585 |
15.32 |
| 2026-08-02 00:00 |
06:49:01.73 |
-11:07:24.3 |
HIP 32585 |
15.82 |
| 2026-08-02 12:00 |
06:49:03.70 |
-11:07:35.9 |
HIP 32585 |
16.31 |
| 2026-08-03 00:00 |
06:49:05.67 |
-11:07:47.6 |
HIP 32585 |
16.81 |
| 2026-08-03 12:00 |
06:49:07.62 |
-11:07:59.4 |
HIP 32585 |
17.30 |
| 2026-08-04 00:00 |
06:49:09.57 |
-11:08:11.4 |
HIP 32585 |
17.79 |
| 2026-08-04 12:00 |
06:49:11.51 |
-11:08:23.5 |
HIP 32585 |
18.29 |
| 2026-08-05 00:00 |
06:49:13.43 |
-11:08:35.7 |
HIP 32585 |
18.78 |
| 2026-08-05 12:00 |
06:49:15.35 |
-11:08:48.1 |
HIP 32585 |
19.27 |
| 2026-08-06 00:00 |
06:49:17.25 |
-11:09:00.6 |
HIP 32585 |
19.76 |
| 2026-08-06 12:00 |
06:49:19.15 |
-11:09:13.2 |
HIP 32585 |
20.25 |
| 2026-08-07 00:00 |
06:49:21.04 |
-11:09:26.0 |
HIP 32585 |
20.73 |
| 2026-08-07 12:00 |
06:49:22.91 |
-11:09:38.8 |
HIP 32585 |
21.22 |
| 2026-08-08 00:00 |
06:49:24.78 |
-11:09:51.9 |
HIP 32758 |
21.46 |
| 2026-08-08 12:00 |
06:49:26.63 |
-11:10:05.0 |
HIP 32758 |
21.12 |
| 2026-08-09 00:00 |
06:49:28.47 |
-11:10:18.3 |
HIP 32758 |
20.79 |
| 2026-08-09 12:00 |
06:49:30.30 |
-11:10:31.7 |
HIP 32758 |
20.46 |
| 2026-08-10 00:00 |
06:49:32.12 |
-11:10:45.2 |
HIP 32758 |
20.14 |
| 2026-08-10 12:00 |
06:49:33.93 |
-11:10:58.8 |
HIP 32758 |
19.83 |
| 2026-08-11 00:00 |
06:49:35.73 |
-11:11:12.6 |
HIP 32758 |
19.52 |
| 2026-08-11 12:00 |
06:49:37.51 |
-11:11:26.5 |
HIP 32758 |
19.21 |
| 2026-08-12 00:00 |
06:49:39.29 |
-11:11:40.5 |
HIP 32758 |
18.92 |
| 2026-08-12 12:00 |
06:49:41.05 |
-11:11:54.7 |
HIP 32758 |
18.62 |
| 2026-08-13 00:00 |
06:49:42.80 |
-11:12:08.9 |
HIP 32758 |
18.34 |
| 2026-08-13 12:00 |
06:49:44.54 |
-11:12:23.3 |
HIP 32758 |
18.07 |
| 2026-08-14 00:00 |
06:49:46.26 |
-11:12:37.8 |
HIP 32758 |
17.80 |
| 2026-08-14 12:00 |
06:49:47.97 |
-11:12:52.4 |
HIP 32758 |
17.53 |
| 2026-08-15 00:00 |
06:49:49.67 |
-11:13:07.1 |
HIP 32758 |
17.28 |
| 2026-08-15 12:00 |
06:49:51.36 |
-11:13:22.0 |
HIP 32758 |
17.04 |
| 2026-08-16 00:00 |
06:49:53.03 |
-11:13:36.9 |
HIP 32758 |
16.80 |
| 2026-08-16 12:00 |
06:49:54.69 |
-11:13:52.0 |
HIP 32758 |
16.57 |
| 2026-08-17 00:00 |
06:49:56.34 |
-11:14:07.2 |
HIP 32758 |
16.35 |
| 2026-08-17 12:00 |
06:49:57.97 |
-11:14:22.4 |
HIP 32758 |
16.14 |
| 2026-08-18 00:00 |
06:49:59.59 |
-11:14:37.8 |
HIP 32758 |
15.93 |
| 2026-08-18 12:00 |
06:50:01.20 |
-11:14:53.3 |
HIP 32758 |
15.74 |
| 2026-08-19 00:00 |
06:50:02.79 |
-11:15:09.0 |
HIP 32758 |
15.56 |