C/2000 K1 (LINEAR)
メタデータ
| 項目 |
値 |
| Designation |
C/2000 K1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1999-12-14T12:17:47.273280Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:04Z |
| Obs used |
304 |
| NEO |
- |
| M1 |
6.200 |
| K1 |
8.250 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2000-09-03.0000000 |
| e |
1.00229832 |
| q (au) |
6.275829 |
| a (au) |
-2730.610936 |
| i (deg) |
116.789203 |
| Ω (om, deg) |
260.198200 |
| ω (w, deg) |
15.791006 |
| M (ma, deg) |
0.001820 |
等級
散乱 + 全体線形
$$
M_a = (0.447 + 5.589\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
0.447 |
| n |
5.589 |
| gf |
0.999 |
| 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) |
| 2026-02-03 00:00 |
06:16:30.87 |
+49:05:20.1 |
HIP 29962 |
19.77 |
| 2026-02-03 12:00 |
06:16:27.47 |
+49:05:06.5 |
HIP 29681 |
19.69 |
| 2026-02-04 00:00 |
06:16:24.10 |
+49:04:52.9 |
HIP 29681 |
19.16 |
| 2026-02-04 12:00 |
06:16:20.74 |
+49:04:39.1 |
HIP 29681 |
18.63 |
| 2026-02-05 00:00 |
06:16:17.42 |
+49:04:25.1 |
HIP 29681 |
18.11 |
| 2026-02-05 12:00 |
06:16:14.12 |
+49:04:11.1 |
HIP 29681 |
17.60 |
| 2026-02-06 00:00 |
06:16:10.85 |
+49:03:56.9 |
HIP 29681 |
17.10 |
| 2026-02-06 12:00 |
06:16:07.60 |
+49:03:42.6 |
HIP 29681 |
16.59 |
| 2026-02-07 00:00 |
06:16:04.39 |
+49:03:28.2 |
HIP 29681 |
16.10 |
| 2026-02-07 12:00 |
06:16:01.19 |
+49:03:13.7 |
HIP 29681 |
15.61 |
| 2026-02-08 00:00 |
06:15:58.03 |
+49:02:59.0 |
HIP 29681 |
15.13 |
| 2026-02-08 12:00 |
06:15:54.89 |
+49:02:44.2 |
HIP 29681 |
14.66 |
| 2026-02-09 00:00 |
06:15:51.78 |
+49:02:29.3 |
HIP 29681 |
14.19 |
| 2026-02-09 12:00 |
06:15:48.70 |
+49:02:14.3 |
HIP 29681 |
13.73 |
| 2026-02-10 00:00 |
06:15:45.65 |
+49:01:59.2 |
HIP 29681 |
13.28 |
| 2026-02-10 12:00 |
06:15:42.62 |
+49:01:44.0 |
HIP 29681 |
12.84 |
| 2026-02-11 00:00 |
06:15:39.62 |
+49:01:28.7 |
HIP 29681 |
12.41 |
| 2026-02-11 12:00 |
06:15:36.66 |
+49:01:13.2 |
HIP 29681 |
11.99 |
| 2026-02-12 00:00 |
06:15:33.72 |
+49:00:57.7 |
HIP 29681 |
11.58 |
| 2026-02-12 12:00 |
06:15:30.81 |
+49:00:42.0 |
HIP 29681 |
11.18 |
| 2026-02-13 00:00 |
06:15:27.93 |
+49:00:26.2 |
HIP 29681 |
10.79 |
| 2026-02-13 12:00 |
06:15:25.08 |
+49:00:10.3 |
HIP 29681 |
10.42 |
| 2026-02-14 00:00 |
06:15:22.26 |
+48:59:54.4 |
HIP 29681 |
10.06 |
| 2026-02-14 12:00 |
06:15:19.47 |
+48:59:38.3 |
HIP 29681 |
9.72 |
| 2026-02-15 00:00 |
06:15:16.71 |
+48:59:22.1 |
HIP 29681 |
9.39 |
| 2026-02-15 12:00 |
06:15:13.98 |
+48:59:05.8 |
HIP 29681 |
9.08 |
| 2026-02-16 00:00 |
06:15:11.28 |
+48:58:49.4 |
HIP 29681 |
8.79 |
| 2026-02-16 12:00 |
06:15:08.61 |
+48:58:32.9 |
HIP 29681 |
8.51 |
| 2026-02-17 00:00 |
06:15:05.97 |
+48:58:16.3 |
HIP 29681 |
8.26 |
| 2026-02-17 12:00 |
06:15:03.36 |
+48:57:59.7 |
HIP 29681 |
8.04 |
| 2026-02-18 00:00 |
06:15:00.79 |
+48:57:42.9 |
HIP 29681 |
7.83 |
| 2026-02-18 12:00 |
06:14:58.25 |
+48:57:26.1 |
HIP 29681 |
7.66 |
| 2026-02-19 00:00 |
06:14:55.73 |
+48:57:09.1 |
HIP 29681 |
7.51 |
| 2026-02-19 12:00 |
06:14:53.26 |
+48:56:52.1 |
HIP 29681 |
7.38 |
| 2026-02-20 00:00 |
06:14:50.81 |
+48:56:34.9 |
HIP 29681 |
7.29 |
| 2026-02-20 12:00 |
06:14:48.39 |
+48:56:17.7 |
HIP 29681 |
7.22 |
| 2026-02-21 00:00 |
06:14:46.01 |
+48:56:00.4 |
HIP 29681 |
7.18 |
| 2026-02-21 12:00 |
06:14:43.66 |
+48:55:43.0 |
HIP 29681 |
7.17 |
| 2026-02-22 00:00 |
06:14:41.34 |
+48:55:25.6 |
HIP 29681 |
7.19 |
| 2026-02-22 12:00 |
06:14:39.06 |
+48:55:08.0 |
HIP 29681 |
7.24 |
| 2026-02-23 00:00 |
06:14:36.80 |
+48:54:50.4 |
HIP 29681 |
7.31 |
| 2026-02-23 12:00 |
06:14:34.58 |
+48:54:32.7 |
HIP 29681 |
7.40 |
| 2026-02-24 00:00 |
06:14:32.40 |
+48:54:14.9 |
HIP 29681 |
7.52 |