165P/LINEAR
メタデータ
| 項目 |
値 |
| Designation |
165P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2000-06-15T19:02:32.447040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:27:43Z |
| Obs used |
143 |
| NEO |
- |
| M1 |
5.900 |
| K1 |
11.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2001-07-24.0000000 |
| e |
0.62158598 |
| q (au) |
6.830373 |
| a (au) |
18.050001 |
| i (deg) |
15.905264 |
| Ω (om, deg) |
0.638768 |
| ω (w, deg) |
126.205423 |
| M (ma, deg) |
5.182220 |
等級
散乱 + 全体線形
$$
M_a = (4.024 + 5.222\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
4.024 |
| n |
5.222 |
| gf |
1.000 |
| gb |
-0.919 |
| 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 |
19:37:23.23 |
-36:23:47.6 |
HIP 96407 |
23.17 |
| 2026-02-03 12:00 |
19:37:28.84 |
-36:23:41.9 |
HIP 96407 |
23.92 |
| 2026-02-04 00:00 |
19:37:34.43 |
-36:23:36.3 |
HIP 96606 |
23.72 |
| 2026-02-04 12:00 |
19:37:40.01 |
-36:23:31.0 |
HIP 96606 |
23.18 |
| 2026-02-05 00:00 |
19:37:45.57 |
-36:23:25.7 |
HIP 96606 |
22.68 |
| 2026-02-05 12:00 |
19:37:51.12 |
-36:23:20.6 |
HIP 96606 |
22.23 |
| 2026-02-06 00:00 |
19:37:56.64 |
-36:23:15.7 |
HIP 96606 |
21.83 |
| 2026-02-06 12:00 |
19:38:02.15 |
-36:23:10.9 |
HIP 96606 |
21.49 |
| 2026-02-07 00:00 |
19:38:07.64 |
-36:23:06.3 |
HIP 96606 |
21.20 |
| 2026-02-07 12:00 |
19:38:13.12 |
-36:23:01.8 |
HIP 96606 |
20.97 |
| 2026-02-08 00:00 |
19:38:18.57 |
-36:22:57.5 |
HIP 96606 |
20.80 |
| 2026-02-08 12:00 |
19:38:24.00 |
-36:22:53.3 |
HIP 96606 |
20.69 |
| 2026-02-09 00:00 |
19:38:29.42 |
-36:22:49.3 |
HIP 96606 |
20.64 |
| 2026-02-09 12:00 |
19:38:34.82 |
-36:22:45.5 |
HIP 96606 |
20.65 |
| 2026-02-10 00:00 |
19:38:40.19 |
-36:22:41.8 |
HIP 96606 |
20.72 |
| 2026-02-10 12:00 |
19:38:45.55 |
-36:22:38.2 |
HIP 96606 |
20.85 |
| 2026-02-11 00:00 |
19:38:50.88 |
-36:22:34.8 |
HIP 96606 |
21.04 |
| 2026-02-11 12:00 |
19:38:56.19 |
-36:22:31.6 |
HIP 96606 |
21.28 |
| 2026-02-12 00:00 |
19:39:01.49 |
-36:22:28.5 |
HIP 96606 |
21.57 |
| 2026-02-12 12:00 |
19:39:06.76 |
-36:22:25.6 |
HIP 96606 |
21.91 |
| 2026-02-13 00:00 |
19:39:12.01 |
-36:22:22.9 |
HIP 96606 |
22.29 |
| 2026-02-13 12:00 |
19:39:17.23 |
-36:22:20.3 |
HIP 96606 |
22.72 |
| 2026-02-14 00:00 |
19:39:22.44 |
-36:22:17.8 |
HIP 96848 |
21.91 |
| 2026-02-14 12:00 |
19:39:27.62 |
-36:22:15.5 |
HIP 96848 |
20.87 |
| 2026-02-15 00:00 |
19:39:32.77 |
-36:22:13.4 |
HIP 96848 |
19.83 |
| 2026-02-15 12:00 |
19:39:37.91 |
-36:22:11.4 |
HIP 96848 |
18.80 |
| 2026-02-16 00:00 |
19:39:43.02 |
-36:22:09.6 |
HIP 96848 |
17.78 |
| 2026-02-16 12:00 |
19:39:48.10 |
-36:22:08.0 |
HIP 96848 |
16.76 |
| 2026-02-17 00:00 |
19:39:53.16 |
-36:22:06.5 |
HIP 96848 |
15.75 |
| 2026-02-17 12:00 |
19:39:58.20 |
-36:22:05.1 |
HIP 96848 |
14.74 |
| 2026-02-18 00:00 |
19:40:03.21 |
-36:22:04.0 |
HIP 96848 |
13.74 |
| 2026-02-18 12:00 |
19:40:08.19 |
-36:22:03.0 |
HIP 96848 |
12.75 |
| 2026-02-19 00:00 |
19:40:13.15 |
-36:22:02.1 |
HIP 96848 |
11.76 |
| 2026-02-19 12:00 |
19:40:18.08 |
-36:22:01.4 |
HIP 96848 |
10.78 |
| 2026-02-20 00:00 |
19:40:22.99 |
-36:22:00.9 |
HIP 96848 |
9.82 |
| 2026-02-20 12:00 |
19:40:27.86 |
-36:22:00.5 |
HIP 96848 |
8.86 |
| 2026-02-21 00:00 |
19:40:32.72 |
-36:22:00.3 |
HIP 96848 |
7.91 |
| 2026-02-21 12:00 |
19:40:37.54 |
-36:22:00.3 |
HIP 96848 |
6.98 |
| 2026-02-22 00:00 |
19:40:42.33 |
-36:22:00.4 |
HIP 96848 |
6.07 |
| 2026-02-22 12:00 |
19:40:47.10 |
-36:22:00.7 |
HIP 96848 |
5.18 |
| 2026-02-23 00:00 |
19:40:51.84 |
-36:22:01.1 |
HIP 96848 |
4.33 |
| 2026-02-23 12:00 |
19:40:56.55 |
-36:22:01.7 |
HIP 96848 |
3.54 |
| 2026-02-24 00:00 |
19:41:01.23 |
-36:22:02.5 |
HIP 96848 |
2.85 |