メタデータ
| 項目 |
値 |
| Designation |
C/2015 V3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2015-11-24T20:48:06.068160Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:16Z |
| Obs used |
99 |
| NEO |
- |
| M1 |
7.300 |
| K1 |
15.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2016-01-24.0000000 |
| e |
0.99484386 |
| q (au) |
4.235691 |
| a (au) |
821.484531 |
| i (deg) |
86.231771 |
| Ω (om, deg) |
2.340885 |
| ω (w, deg) |
0.821275 |
| M (ma, deg) |
0.002517 |
等級
散乱 + 全体線形
$$
M_a = (6.207 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
6.207 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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 |
13:25:07.11 |
+42:42:16.1 |
HIP 65485 |
1.91 |
| 2026-09-20 12:00 |
13:25:12.26 |
+42:41:29.8 |
HIP 65485 |
1.06 |
| 2026-09-21 00:00 |
13:25:17.44 |
+42:40:43.8 |
HIP 65485 |
1.24 |
| 2026-09-21 12:00 |
13:25:22.63 |
+42:39:58.2 |
HIP 65485 |
2.22 |
| 2026-09-22 00:00 |
13:25:27.84 |
+42:39:13.0 |
HIP 65485 |
3.36 |
| 2026-09-22 12:00 |
13:25:33.07 |
+42:38:28.2 |
HIP 65485 |
4.53 |
| 2026-09-23 00:00 |
13:25:38.32 |
+42:37:43.7 |
HIP 65485 |
5.73 |
| 2026-09-23 12:00 |
13:25:43.59 |
+42:36:59.6 |
HIP 65485 |
6.92 |
| 2026-09-24 00:00 |
13:25:48.87 |
+42:36:15.9 |
HIP 65485 |
8.13 |
| 2026-09-24 12:00 |
13:25:54.17 |
+42:35:32.6 |
HIP 65485 |
9.33 |
| 2026-09-25 00:00 |
13:25:59.49 |
+42:34:49.6 |
HIP 65485 |
10.53 |
| 2026-09-25 12:00 |
13:26:04.82 |
+42:34:07.1 |
HIP 65485 |
11.74 |
| 2026-09-26 00:00 |
13:26:10.17 |
+42:33:24.9 |
HIP 65485 |
12.94 |
| 2026-09-26 12:00 |
13:26:15.53 |
+42:32:43.1 |
HIP 65485 |
14.14 |
| 2026-09-27 00:00 |
13:26:20.91 |
+42:32:01.7 |
HIP 65485 |
15.34 |
| 2026-09-27 12:00 |
13:26:26.30 |
+42:31:20.7 |
HIP 65485 |
16.54 |
| 2026-09-28 00:00 |
13:26:31.71 |
+42:30:40.1 |
HIP 65485 |
17.74 |
| 2026-09-28 12:00 |
13:26:37.13 |
+42:30:00.0 |
HIP 65485 |
18.94 |
| 2026-09-29 00:00 |
13:26:42.57 |
+42:29:20.2 |
HIP 65485 |
20.13 |
| 2026-09-29 12:00 |
13:26:48.02 |
+42:28:40.8 |
HIP 65485 |
21.33 |
| 2026-09-30 00:00 |
13:26:53.48 |
+42:28:01.8 |
HIP 65485 |
22.52 |
| 2026-09-30 12:00 |
13:26:58.96 |
+42:27:23.2 |
HIP 65485 |
23.71 |
| 2026-10-01 00:00 |
13:27:04.45 |
+42:26:45.0 |
HIP 65485 |
24.90 |
| 2026-10-01 12:00 |
13:27:09.95 |
+42:26:07.3 |
HIP 65775 |
24.07 |
| 2026-10-02 00:00 |
13:27:15.46 |
+42:25:29.9 |
HIP 65775 |
22.88 |
| 2026-10-02 12:00 |
13:27:20.98 |
+42:24:53.0 |
HIP 65775 |
21.69 |
| 2026-10-03 00:00 |
13:27:26.52 |
+42:24:16.5 |
HIP 65775 |
20.50 |
| 2026-10-03 12:00 |
13:27:32.06 |
+42:23:40.4 |
HIP 65775 |
19.31 |
| 2026-10-04 00:00 |
13:27:37.62 |
+42:23:04.7 |
HIP 65775 |
18.13 |
| 2026-10-04 12:00 |
13:27:43.18 |
+42:22:29.5 |
HIP 65775 |
16.94 |
| 2026-10-05 00:00 |
13:27:48.76 |
+42:21:54.7 |
HIP 65775 |
15.76 |
| 2026-10-05 12:00 |
13:27:54.34 |
+42:21:20.3 |
HIP 65775 |
14.58 |
| 2026-10-06 00:00 |
13:27:59.94 |
+42:20:46.3 |
HIP 65775 |
13.40 |
| 2026-10-06 12:00 |
13:28:05.54 |
+42:20:12.8 |
HIP 65775 |
12.22 |
| 2026-10-07 00:00 |
13:28:11.15 |
+42:19:39.7 |
HIP 65775 |
11.05 |
| 2026-10-07 12:00 |
13:28:16.77 |
+42:19:07.1 |
HIP 65775 |
9.88 |
| 2026-10-08 00:00 |
13:28:22.39 |
+42:18:34.9 |
HIP 65775 |
8.71 |
| 2026-10-08 12:00 |
13:28:28.02 |
+42:18:03.1 |
HIP 65775 |
7.54 |
| 2026-10-09 00:00 |
13:28:33.66 |
+42:17:31.8 |
HIP 65775 |
6.38 |
| 2026-10-09 12:00 |
13:28:39.31 |
+42:17:00.9 |
HIP 65775 |
5.22 |
| 2026-10-10 00:00 |
13:28:44.96 |
+42:16:30.5 |
HIP 65775 |
4.06 |
| 2026-10-10 12:00 |
13:28:50.61 |
+42:16:00.5 |
HIP 65775 |
2.92 |
| 2026-10-11 00:00 |
13:28:56.27 |
+42:15:31.0 |
HIP 65775 |
1.79 |