C/1993 Q1 (Mueller)
メタデータ
| 項目 |
値 |
| Designation |
C/1993 Q1 (Mueller) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1994-03-26T06:39:06.874560Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:47Z |
| Obs used |
495 |
| NEO |
- |
| M1 |
9.800 |
| K1 |
4.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
1993-10-28.0000000 |
| e |
1.00032242 |
| q (au) |
0.967251 |
| a (au) |
-2999.968986 |
| i (deg) |
105.026500 |
| Ω (om, deg) |
193.788984 |
| ω (w, deg) |
261.032961 |
| M (ma, deg) |
-0.000895 |
等級
散乱 + 全体線形
$$
M_a = (8.169 + 4.619\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
8.169 |
| n |
4.619 |
| gf |
1.000 |
| gb |
-0.687 |
| 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
残差 (区間線形)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 開始日 (UTC) |
終了日 (UTC) |
a |
b |
| 1992-09-28 |
1993-12-09 |
-0.3959 |
+0.181 |
| 1993-12-09 |
1994-02-02 |
+0.8399 |
-0.656 |
| 1994-04-01 |
1994-07-02 |
+14.9311 |
-0.152 |
log10 r = log10(太陽距離/AU)、Δ = 地球距離(AU)
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
13:54:22.96 |
+59:30:03.2 |
HIP 68130 |
18.72 |
| 2026-02-03 12:00 |
13:54:22.08 |
+59:30:34.9 |
HIP 68130 |
18.85 |
| 2026-02-04 00:00 |
13:54:21.17 |
+59:31:06.5 |
HIP 68130 |
18.99 |
| 2026-02-04 12:00 |
13:54:20.23 |
+59:31:38.1 |
HIP 68130 |
19.16 |
| 2026-02-05 00:00 |
13:54:19.25 |
+59:32:09.6 |
HIP 68130 |
19.35 |
| 2026-02-05 12:00 |
13:54:18.24 |
+59:32:41.1 |
HIP 68130 |
19.55 |
| 2026-02-06 00:00 |
13:54:17.20 |
+59:33:12.6 |
HIP 68130 |
19.77 |
| 2026-02-06 12:00 |
13:54:16.12 |
+59:33:44.0 |
HIP 68130 |
20.00 |
| 2026-02-07 00:00 |
13:54:15.00 |
+59:34:15.4 |
HIP 68130 |
20.25 |
| 2026-02-07 12:00 |
13:54:13.85 |
+59:34:46.7 |
HIP 68130 |
20.52 |
| 2026-02-08 00:00 |
13:54:12.67 |
+59:35:18.0 |
HIP 68130 |
20.80 |
| 2026-02-08 12:00 |
13:54:11.46 |
+59:35:49.2 |
HIP 68105 |
20.84 |
| 2026-02-09 00:00 |
13:54:10.21 |
+59:36:20.4 |
HIP 68105 |
20.72 |
| 2026-02-09 12:00 |
13:54:08.92 |
+59:36:51.5 |
HIP 68105 |
20.62 |
| 2026-02-10 00:00 |
13:54:07.60 |
+59:37:22.5 |
HIP 68105 |
20.54 |
| 2026-02-10 12:00 |
13:54:06.25 |
+59:37:53.5 |
HIP 68105 |
20.48 |
| 2026-02-11 00:00 |
13:54:04.87 |
+59:38:24.5 |
HIP 68105 |
20.44 |
| 2026-02-11 12:00 |
13:54:03.45 |
+59:38:55.3 |
HIP 68105 |
20.41 |
| 2026-02-12 00:00 |
13:54:02.00 |
+59:39:26.1 |
HIP 68105 |
20.41 |
| 2026-02-12 12:00 |
13:54:00.51 |
+59:39:56.8 |
HIP 68105 |
20.42 |
| 2026-02-13 00:00 |
13:53:59.00 |
+59:40:27.4 |
HIP 68105 |
20.45 |
| 2026-02-13 12:00 |
13:53:57.45 |
+59:40:58.0 |
HIP 68105 |
20.50 |
| 2026-02-14 00:00 |
13:53:55.86 |
+59:41:28.5 |
HIP 68105 |
20.57 |
| 2026-02-14 12:00 |
13:53:54.24 |
+59:41:58.9 |
HIP 68105 |
20.66 |
| 2026-02-15 00:00 |
13:53:52.59 |
+59:42:29.2 |
HIP 68105 |
20.77 |
| 2026-02-15 12:00 |
13:53:50.91 |
+59:42:59.4 |
HIP 68105 |
20.89 |
| 2026-02-16 00:00 |
13:53:49.20 |
+59:43:29.6 |
HIP 68105 |
21.03 |
| 2026-02-16 12:00 |
13:53:47.45 |
+59:43:59.6 |
HIP 68105 |
21.19 |
| 2026-02-17 00:00 |
13:53:45.67 |
+59:44:29.5 |
HIP 68105 |
21.37 |
| 2026-02-17 12:00 |
13:53:43.86 |
+59:44:59.4 |
HIP 68105 |
21.56 |
| 2026-02-18 00:00 |
13:53:42.01 |
+59:45:29.1 |
HIP 68105 |
21.77 |
| 2026-02-18 12:00 |
13:53:40.13 |
+59:45:58.8 |
HIP 67573 |
21.68 |
| 2026-02-19 00:00 |
13:53:38.23 |
+59:46:28.3 |
HIP 67573 |
21.48 |
| 2026-02-19 12:00 |
13:53:36.29 |
+59:46:57.7 |
HIP 67573 |
21.30 |
| 2026-02-20 00:00 |
13:53:34.32 |
+59:47:27.1 |
HIP 67573 |
21.12 |
| 2026-02-20 12:00 |
13:53:32.31 |
+59:47:56.3 |
HIP 67573 |
20.95 |
| 2026-02-21 00:00 |
13:53:30.28 |
+59:48:25.4 |
HIP 67573 |
20.79 |
| 2026-02-21 12:00 |
13:53:28.22 |
+59:48:54.3 |
HIP 67573 |
20.63 |
| 2026-02-22 00:00 |
13:53:26.12 |
+59:49:23.2 |
HIP 67573 |
20.49 |
| 2026-02-22 12:00 |
13:53:24.00 |
+59:49:51.9 |
HIP 67573 |
20.36 |
| 2026-02-23 00:00 |
13:53:21.84 |
+59:50:20.5 |
HIP 67573 |
20.24 |
| 2026-02-23 12:00 |
13:53:19.65 |
+59:50:49.0 |
HIP 67573 |
20.12 |
| 2026-02-24 00:00 |
13:53:17.44 |
+59:51:17.4 |
HIP 67573 |
20.02 |