メタデータ
| 項目 |
値 |
| Designation |
C/2010 G3 (WISE) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-04-11T02:03:46.451520Z |
| Orbit solution date (soln_date, UTC) |
2022-07-06T03:12:22Z |
| Obs used |
271 |
| NEO |
- |
| M1 |
5.100 |
| K1 |
14.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2010-07-15.0000000 |
| e |
0.99809183 |
| q (au) |
4.907655 |
| a (au) |
2571.923503 |
| i (deg) |
108.267609 |
| Ω (om, deg) |
313.718341 |
| ω (w, deg) |
75.199953 |
| M (ma, deg) |
0.000717 |
等級
散乱 + 全体線形
$$
M_a = (7.154 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
7.154 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.708 |
| 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 |
08:00:13.94 |
-06:48:10.5 |
HIP 39168 |
18.53 |
| 2026-07-29 12:00 |
08:00:17.21 |
-06:48:27.9 |
HIP 39168 |
17.97 |
| 2026-07-30 00:00 |
08:00:20.48 |
-06:48:45.5 |
HIP 39168 |
17.44 |
| 2026-07-30 12:00 |
08:00:23.74 |
-06:49:03.3 |
HIP 39168 |
16.93 |
| 2026-07-31 00:00 |
08:00:27.00 |
-06:49:21.4 |
HIP 39168 |
16.45 |
| 2026-07-31 12:00 |
08:00:30.26 |
-06:49:39.6 |
HIP 39168 |
16.00 |
| 2026-08-01 00:00 |
08:00:33.51 |
-06:49:57.9 |
HIP 39168 |
15.58 |
| 2026-08-01 12:00 |
08:00:36.75 |
-06:50:16.5 |
HIP 39168 |
15.20 |
| 2026-08-02 00:00 |
08:00:39.99 |
-06:50:35.3 |
HIP 39168 |
14.85 |
| 2026-08-02 12:00 |
08:00:43.22 |
-06:50:54.2 |
HIP 39168 |
14.55 |
| 2026-08-03 00:00 |
08:00:46.44 |
-06:51:13.4 |
HIP 39168 |
14.28 |
| 2026-08-03 12:00 |
08:00:49.66 |
-06:51:32.7 |
HIP 39168 |
14.06 |
| 2026-08-04 00:00 |
08:00:52.88 |
-06:51:52.2 |
HIP 39168 |
13.89 |
| 2026-08-04 12:00 |
08:00:56.08 |
-06:52:11.8 |
HIP 39168 |
13.76 |
| 2026-08-05 00:00 |
08:00:59.28 |
-06:52:31.7 |
HIP 39168 |
13.69 |
| 2026-08-05 12:00 |
08:01:02.48 |
-06:52:51.7 |
HIP 39168 |
13.66 |
| 2026-08-06 00:00 |
08:01:05.66 |
-06:53:12.0 |
HIP 39168 |
13.68 |
| 2026-08-06 12:00 |
08:01:08.84 |
-06:53:32.4 |
HIP 39168 |
13.76 |
| 2026-08-07 00:00 |
08:01:12.01 |
-06:53:52.9 |
HIP 39168 |
13.88 |
| 2026-08-07 12:00 |
08:01:15.17 |
-06:54:13.7 |
HIP 39168 |
14.06 |
| 2026-08-08 00:00 |
08:01:18.32 |
-06:54:34.6 |
HIP 39168 |
14.27 |
| 2026-08-08 12:00 |
08:01:21.47 |
-06:54:55.7 |
HIP 39168 |
14.54 |
| 2026-08-09 00:00 |
08:01:24.60 |
-06:55:17.0 |
HIP 39168 |
14.84 |
| 2026-08-09 12:00 |
08:01:27.73 |
-06:55:38.5 |
HIP 39168 |
15.18 |
| 2026-08-10 00:00 |
08:01:30.84 |
-06:56:00.1 |
HIP 39168 |
15.56 |
| 2026-08-10 12:00 |
08:01:33.95 |
-06:56:21.9 |
HIP 39168 |
15.97 |
| 2026-08-11 00:00 |
08:01:37.05 |
-06:56:43.9 |
HIP 39168 |
16.41 |
| 2026-08-11 12:00 |
08:01:40.14 |
-06:57:06.0 |
HIP 39168 |
16.88 |
| 2026-08-12 00:00 |
08:01:43.22 |
-06:57:28.3 |
HIP 39168 |
17.37 |
| 2026-08-12 12:00 |
08:01:46.28 |
-06:57:50.8 |
HIP 39168 |
17.89 |
| 2026-08-13 00:00 |
08:01:49.34 |
-06:58:13.4 |
HIP 39168 |
18.43 |
| 2026-08-13 12:00 |
08:01:52.39 |
-06:58:36.3 |
HIP 39168 |
18.99 |
| 2026-08-14 00:00 |
08:01:55.42 |
-06:58:59.2 |
HIP 39168 |
19.56 |
| 2026-08-14 12:00 |
08:01:58.45 |
-06:59:22.4 |
HIP 39168 |
20.15 |
| 2026-08-15 00:00 |
08:02:01.46 |
-06:59:45.7 |
HIP 39168 |
20.76 |
| 2026-08-15 12:00 |
08:02:04.46 |
-07:00:09.1 |
HIP 39168 |
21.37 |
| 2026-08-16 00:00 |
08:02:07.44 |
-07:00:32.7 |
HIP 39168 |
22.00 |
| 2026-08-16 12:00 |
08:02:10.42 |
-07:00:56.5 |
HIP 39168 |
22.64 |
| 2026-08-17 00:00 |
08:02:13.38 |
-07:01:20.4 |
HIP 39168 |
23.29 |
| 2026-08-17 12:00 |
08:02:16.33 |
-07:01:44.5 |
HIP 39168 |
23.94 |
| 2026-08-18 00:00 |
08:02:19.27 |
-07:02:08.7 |
HIP 39168 |
24.60 |
| 2026-08-18 12:00 |
08:02:22.19 |
-07:02:33.1 |
HIP 39168 |
25.27 |
| 2026-08-19 00:00 |
08:02:25.10 |
-07:02:57.6 |
HIP 39381 |
25.65 |