C/2016 K1 (LINEAR)
メタデータ
| 項目 |
値 |
| Designation |
C/2016 K1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2016-07-13T09:05:23.239680Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:24Z |
| Obs used |
310 |
| NEO |
- |
| M1 |
8.900 |
| K1 |
22.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2016-07-28.0000000 |
| e |
1.00027414 |
| q (au) |
2.291522 |
| a (au) |
-8358.942288 |
| i (deg) |
90.845997 |
| Ω (om, deg) |
325.702598 |
| ω (w, deg) |
18.253429 |
| M (ma, deg) |
0.000019 |
等級
散乱 + 全体線形
$$
M_a = (10.799 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
10.799 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.501 |
| 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) |
| 2026-02-03 00:00 |
10:24:37.85 |
+30:29:49.0 |
HIP 50997 |
9.10 |
| 2026-02-03 12:00 |
10:24:32.18 |
+30:30:17.8 |
HIP 50997 |
10.21 |
| 2026-02-04 00:00 |
10:24:26.48 |
+30:30:46.3 |
HIP 50997 |
11.37 |
| 2026-02-04 12:00 |
10:24:20.77 |
+30:31:14.7 |
HIP 50997 |
12.55 |
| 2026-02-05 00:00 |
10:24:15.05 |
+30:31:42.9 |
HIP 50997 |
13.77 |
| 2026-02-05 12:00 |
10:24:09.30 |
+30:32:11.0 |
HIP 50997 |
15.00 |
| 2026-02-06 00:00 |
10:24:03.54 |
+30:32:38.8 |
HIP 50997 |
16.24 |
| 2026-02-06 12:00 |
10:23:57.77 |
+30:33:06.5 |
HIP 50997 |
17.50 |
| 2026-02-07 00:00 |
10:23:51.97 |
+30:33:34.0 |
HIP 50997 |
18.77 |
| 2026-02-07 12:00 |
10:23:46.17 |
+30:34:01.3 |
HIP 50840 |
18.36 |
| 2026-02-08 00:00 |
10:23:40.35 |
+30:34:28.4 |
HIP 50852 |
17.85 |
| 2026-02-08 12:00 |
10:23:34.52 |
+30:34:55.4 |
HIP 50852 |
16.89 |
| 2026-02-09 00:00 |
10:23:28.67 |
+30:35:22.1 |
HIP 50852 |
15.98 |
| 2026-02-09 12:00 |
10:23:22.81 |
+30:35:48.6 |
HIP 50852 |
15.14 |
| 2026-02-10 00:00 |
10:23:16.94 |
+30:36:15.0 |
HIP 50852 |
14.38 |
| 2026-02-10 12:00 |
10:23:11.06 |
+30:36:41.1 |
HIP 50852 |
13.71 |
| 2026-02-11 00:00 |
10:23:05.16 |
+30:37:07.0 |
HIP 50852 |
13.14 |
| 2026-02-11 12:00 |
10:22:59.26 |
+30:37:32.7 |
HIP 50852 |
12.70 |
| 2026-02-12 00:00 |
10:22:53.34 |
+30:37:58.2 |
HIP 50852 |
12.38 |
| 2026-02-12 12:00 |
10:22:47.42 |
+30:38:23.5 |
HIP 50852 |
12.22 |
| 2026-02-13 00:00 |
10:22:41.48 |
+30:38:48.6 |
HIP 50852 |
12.20 |
| 2026-02-13 12:00 |
10:22:35.54 |
+30:39:13.4 |
HIP 50852 |
12.33 |
| 2026-02-14 00:00 |
10:22:29.59 |
+30:39:38.1 |
HIP 50852 |
12.61 |
| 2026-02-14 12:00 |
10:22:23.63 |
+30:40:02.5 |
HIP 50852 |
13.02 |
| 2026-02-15 00:00 |
10:22:17.66 |
+30:40:26.6 |
HIP 50852 |
13.56 |
| 2026-02-15 12:00 |
10:22:11.69 |
+30:40:50.5 |
HIP 50852 |
14.21 |
| 2026-02-16 00:00 |
10:22:05.71 |
+30:41:14.2 |
HIP 50852 |
14.96 |
| 2026-02-16 12:00 |
10:21:59.73 |
+30:41:37.7 |
HIP 50673 |
14.84 |
| 2026-02-17 00:00 |
10:21:53.74 |
+30:42:00.9 |
HIP 50673 |
13.62 |
| 2026-02-17 12:00 |
10:21:47.75 |
+30:42:23.9 |
HIP 50673 |
12.42 |
| 2026-02-18 00:00 |
10:21:41.75 |
+30:42:46.6 |
HIP 50673 |
11.26 |
| 2026-02-18 12:00 |
10:21:35.75 |
+30:43:09.1 |
HIP 50673 |
10.14 |
| 2026-02-19 00:00 |
10:21:29.75 |
+30:43:31.3 |
HIP 50673 |
9.07 |
| 2026-02-19 12:00 |
10:21:23.74 |
+30:43:53.3 |
HIP 50673 |
8.09 |
| 2026-02-20 00:00 |
10:21:17.74 |
+30:44:15.0 |
HIP 50673 |
7.21 |
| 2026-02-20 12:00 |
10:21:11.73 |
+30:44:36.4 |
HIP 50673 |
6.50 |
| 2026-02-21 00:00 |
10:21:05.72 |
+30:44:57.6 |
HIP 50673 |
6.00 |
| 2026-02-21 12:00 |
10:20:59.71 |
+30:45:18.6 |
HIP 50673 |
5.78 |
| 2026-02-22 00:00 |
10:20:53.71 |
+30:45:39.2 |
HIP 50673 |
5.85 |
| 2026-02-22 12:00 |
10:20:47.70 |
+30:45:59.6 |
HIP 50673 |
6.21 |
| 2026-02-23 00:00 |
10:20:41.69 |
+30:46:19.8 |
HIP 50673 |
6.81 |
| 2026-02-23 12:00 |
10:20:35.69 |
+30:46:39.6 |
HIP 50673 |
7.60 |
| 2026-02-24 00:00 |
10:20:29.69 |
+30:46:59.2 |
HIP 50673 |
8.52 |