メタデータ
| 項目 |
値 |
| Designation |
316P/LONEOS-Christensen |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2006-11-07T01:27:06.275520Z |
| Orbit solution date (soln_date, UTC) |
2025-04-09T13:45:33Z |
| Obs used |
128 |
| NEO |
- |
| M1 |
15.100 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2017-01-26T12:54:38.016000Z |
| Discovery magnitude (MPC) |
21.00 z |
| Discovery observatory (MPC) |
T09 · Subaru Telescope, Maunakea |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2007-09-04.0000000 |
| e |
0.16637404 |
| q (au) |
3.606774 |
| a (au) |
4.326609 |
| i (deg) |
9.882930 |
| Ω (om, deg) |
246.930761 |
| ω (w, deg) |
191.667732 |
| M (ma, deg) |
32.958072 |
等級
散乱 + 全体線形
$$
M_a = (16.818 + 4.167\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
16.818 |
| n |
4.167 |
| gf |
0.999 |
| gb |
-0.779 |
| 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
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 |
10:13:45.33 |
+02:12:43.6 |
HIP 50091 |
27.47 |
| 2026-07-29 12:00 |
10:14:15.03 |
+02:10:15.9 |
HIP 50091 |
31.21 |
| 2026-07-30 00:00 |
10:14:44.76 |
+02:07:47.7 |
HIP 50091 |
36.29 |
| 2026-07-30 12:00 |
10:15:14.51 |
+02:05:18.8 |
HIP 50348 |
29.89 |
| 2026-07-31 00:00 |
10:15:44.29 |
+02:02:49.3 |
HIP 50348 |
22.51 |
| 2026-07-31 12:00 |
10:16:14.10 |
+02:00:19.2 |
HIP 50348 |
15.59 |
| 2026-08-01 00:00 |
10:16:43.93 |
+01:57:48.5 |
HIP 50348 |
10.13 |
| 2026-08-01 12:00 |
10:17:13.78 |
+01:55:17.2 |
HIP 50348 |
9.25 |
| 2026-08-02 00:00 |
10:17:43.66 |
+01:52:45.3 |
HIP 50348 |
13.89 |
| 2026-08-02 12:00 |
10:18:13.56 |
+01:50:12.8 |
HIP 50483 |
16.56 |
| 2026-08-03 00:00 |
10:18:43.48 |
+01:47:39.7 |
HIP 50483 |
13.81 |
| 2026-08-03 12:00 |
10:19:13.42 |
+01:45:06.1 |
HIP 50483 |
15.23 |
| 2026-08-04 00:00 |
10:19:43.39 |
+01:42:31.8 |
HIP 50483 |
19.96 |
| 2026-08-04 12:00 |
10:20:13.38 |
+01:39:57.0 |
HIP 50483 |
26.28 |
| 2026-08-05 00:00 |
10:20:43.39 |
+01:37:21.6 |
HIP 50811 |
27.24 |
| 2026-08-05 12:00 |
10:21:13.42 |
+01:34:45.6 |
HIP 50811 |
19.30 |
| 2026-08-06 00:00 |
10:21:43.47 |
+01:32:09.0 |
HIP 50811 |
11.35 |
| 2026-08-06 12:00 |
10:22:13.54 |
+01:29:31.9 |
HIP 50811 |
3.40 |
| 2026-08-07 00:00 |
10:22:43.63 |
+01:26:54.2 |
HIP 50811 |
4.60 |
| 2026-08-07 12:00 |
10:23:13.74 |
+01:24:16.0 |
HIP 50811 |
12.56 |
| 2026-08-08 00:00 |
10:23:43.87 |
+01:21:37.2 |
HIP 50831 |
19.32 |
| 2026-08-08 12:00 |
10:24:14.01 |
+01:18:57.8 |
HIP 50831 |
24.33 |
| 2026-08-09 00:00 |
10:24:44.17 |
+01:16:17.9 |
HIP 51034 |
17.01 |
| 2026-08-09 12:00 |
10:25:14.35 |
+01:13:37.4 |
HIP 51034 |
10.07 |
| 2026-08-10 00:00 |
10:25:44.55 |
+01:10:56.4 |
HIP 51034 |
6.44 |
| 2026-08-10 12:00 |
10:26:14.76 |
+01:08:14.9 |
HIP 51034 |
10.48 |
| 2026-08-11 00:00 |
10:26:44.98 |
+01:05:32.8 |
HIP 51034 |
17.52 |
| 2026-08-11 12:00 |
10:27:15.22 |
+01:02:50.2 |
HIP 51191 |
21.33 |
| 2026-08-12 00:00 |
10:27:45.47 |
+01:00:07.1 |
HIP 51317 |
20.03 |
| 2026-08-12 12:00 |
10:28:15.74 |
+00:57:23.4 |
HIP 51317 |
12.14 |
| 2026-08-13 00:00 |
10:28:46.02 |
+00:54:39.2 |
HIP 51317 |
4.78 |
| 2026-08-13 12:00 |
10:29:16.31 |
+00:51:54.6 |
HIP 51317 |
5.27 |
| 2026-08-14 00:00 |
10:29:46.61 |
+00:49:09.4 |
HIP 51317 |
12.75 |
| 2026-08-14 12:00 |
10:30:16.92 |
+00:46:23.7 |
HIP 51481 |
9.52 |
| 2026-08-15 00:00 |
10:30:47.24 |
+00:43:37.5 |
HIP 51481 |
4.79 |
| 2026-08-15 12:00 |
10:31:17.57 |
+00:40:50.8 |
HIP 51481 |
9.25 |
| 2026-08-16 00:00 |
10:31:47.91 |
+00:38:03.7 |
HIP 51559 |
9.75 |
| 2026-08-16 12:00 |
10:32:18.26 |
+00:35:16.0 |
HIP 51559 |
8.74 |
| 2026-08-17 00:00 |
10:32:48.61 |
+00:32:27.9 |
HIP 51559 |
13.73 |
| 2026-08-17 12:00 |
10:33:18.97 |
+00:29:39.3 |
HIP 51559 |
20.77 |
| 2026-08-18 00:00 |
10:33:49.34 |
+00:26:50.2 |
HIP 51559 |
28.38 |
| 2026-08-18 12:00 |
10:34:19.72 |
+00:24:00.7 |
HIP 51895 |
32.29 |
| 2026-08-19 00:00 |
10:34:50.10 |
+00:21:10.7 |
HIP 51895 |
28.11 |