メタデータ
| 項目 |
値 |
| Designation |
412P/WISE |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-06-14T00:01:38.400960Z |
| Orbit solution date (soln_date, UTC) |
2025-04-09T14:05:32Z |
| Obs used |
74 |
| NEO |
- |
| M1 |
15.200 |
| K1 |
20.000 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2020-12-19T10:55:12.864000Z |
| Discovery magnitude (MPC) |
20.10 T |
| Discovery observatory (MPC) |
G37 · Lowell Discovery Telescope |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2013-11-03.0000000 |
| e |
0.48090203 |
| q (au) |
1.612615 |
| a (au) |
3.106572 |
| i (deg) |
8.937369 |
| Ω (om, deg) |
0.856614 |
| ω (w, deg) |
155.962875 |
| M (ma, deg) |
254.157519 |
等級
散乱 + 全体線形
$$
M_a = (15.724 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
15.724 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.999 |
| 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
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
11:09:44.15 |
+04:16:23.6 |
HIP 54440 |
23.69 |
| 2026-07-29 12:00 |
11:10:57.70 |
+04:06:49.1 |
HIP 54565 |
28.84 |
| 2026-07-30 00:00 |
11:12:11.17 |
+03:57:14.7 |
HIP 54661 |
29.30 |
| 2026-07-30 12:00 |
11:13:24.58 |
+03:47:40.5 |
HIP 54853 |
23.11 |
| 2026-07-31 00:00 |
11:14:37.91 |
+03:38:06.5 |
HIP 54853 |
17.37 |
| 2026-07-31 12:00 |
11:15:51.17 |
+03:28:32.7 |
HIP 54853 |
30.35 |
| 2026-08-01 00:00 |
11:17:04.35 |
+03:18:59.1 |
HIP 55231 |
25.60 |
| 2026-08-01 12:00 |
11:18:17.47 |
+03:09:25.7 |
HIP 55231 |
5.15 |
| 2026-08-02 00:00 |
11:19:30.52 |
+02:59:52.6 |
HIP 55231 |
15.68 |
| 2026-08-02 12:00 |
11:20:43.50 |
+02:50:19.7 |
HIP 55408 |
1.85 |
| 2026-08-03 00:00 |
11:21:56.41 |
+02:40:47.1 |
HIP 55408 |
20.23 |
| 2026-08-03 12:00 |
11:23:09.26 |
+02:31:14.9 |
HIP 55416 |
33.79 |
| 2026-08-04 00:00 |
11:24:22.04 |
+02:21:42.9 |
HIP 55699 |
16.93 |
| 2026-08-04 12:00 |
11:25:34.75 |
+02:12:11.2 |
HIP 55699 |
13.95 |
| 2026-08-05 00:00 |
11:26:47.40 |
+02:02:39.9 |
HIP 56008 |
29.97 |
| 2026-08-05 12:00 |
11:27:59.98 |
+01:53:09.0 |
HIP 56008 |
10.01 |
| 2026-08-06 00:00 |
11:29:12.50 |
+01:43:38.4 |
HIP 56008 |
11.87 |
| 2026-08-06 12:00 |
11:30:24.96 |
+01:34:08.2 |
HIP 56008 |
31.91 |
| 2026-08-07 00:00 |
11:31:37.35 |
+01:24:38.5 |
HIP 56307 |
15.36 |
| 2026-08-07 12:00 |
11:32:49.69 |
+01:15:09.1 |
HIP 56307 |
6.22 |
| 2026-08-08 00:00 |
11:34:01.96 |
+01:05:40.2 |
HIP 56377 |
19.93 |
| 2026-08-08 12:00 |
11:35:14.17 |
+00:56:11.7 |
HIP 56605 |
26.26 |
| 2026-08-09 00:00 |
11:36:26.32 |
+00:46:43.7 |
HIP 56605 |
11.00 |
| 2026-08-09 12:00 |
11:37:38.42 |
+00:37:16.2 |
HIP 56605 |
19.54 |
| 2026-08-10 00:00 |
11:38:50.45 |
+00:27:49.2 |
HIP 56941 |
37.51 |
| 2026-08-10 12:00 |
11:40:02.43 |
+00:18:22.7 |
HIP 56994 |
25.10 |
| 2026-08-11 00:00 |
11:41:14.35 |
+00:08:56.7 |
HIP 56994 |
11.56 |
| 2026-08-11 12:00 |
11:42:26.21 |
-00:00:28.7 |
HIP 57158 |
17.74 |
| 2026-08-12 00:00 |
11:43:38.02 |
-00:09:53.5 |
HIP 57158 |
21.49 |
| 2026-08-12 12:00 |
11:44:49.77 |
-00:19:17.8 |
HIP 57306 |
12.11 |
| 2026-08-13 00:00 |
11:46:01.46 |
-00:28:41.5 |
HIP 57306 |
15.20 |
| 2026-08-13 12:00 |
11:47:13.10 |
-00:38:04.5 |
HIP 57564 |
18.59 |
| 2026-08-14 00:00 |
11:48:24.68 |
-00:47:26.9 |
HIP 57564 |
8.26 |
| 2026-08-14 12:00 |
11:49:36.21 |
-00:56:48.7 |
HIP 57735 |
21.51 |
| 2026-08-15 00:00 |
11:50:47.68 |
-01:06:09.8 |
HIP 57735 |
11.17 |
| 2026-08-15 12:00 |
11:51:59.10 |
-01:15:30.2 |
HIP 57735 |
24.48 |
| 2026-08-16 00:00 |
11:53:10.46 |
-01:24:49.9 |
HIP 58093 |
25.44 |
| 2026-08-16 12:00 |
11:54:21.77 |
-01:34:08.9 |
HIP 58093 |
10.35 |
| 2026-08-17 00:00 |
11:55:33.03 |
-01:43:27.2 |
HIP 58191 |
18.34 |
| 2026-08-17 12:00 |
11:56:44.23 |
-01:52:44.7 |
HIP 58191 |
28.33 |
| 2026-08-18 00:00 |
11:57:55.38 |
-02:02:01.4 |
HIP 58433 |
15.66 |
| 2026-08-18 12:00 |
11:59:06.48 |
-02:11:17.4 |
HIP 58433 |
4.43 |
| 2026-08-19 00:00 |
12:00:17.53 |
-02:20:32.6 |
HIP 58433 |
24.41 |