411P/Christensen
メタデータ
| 項目 |
値 |
| Designation |
411P/Christensen |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2007-01-23T00:31:58.823040Z |
| Orbit solution date (soln_date, UTC) |
2025-04-24T09:42:33Z |
| Obs used |
225 |
| NEO |
- |
| M1 |
14.700 |
| K1 |
10.000 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2020-11-17T03:08:54.816000Z |
| Discovery magnitude (MPC) |
21.70 T |
| Discovery observatory (MPC) |
Z84 · Calar Alto-Schmidt |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2013-10-24.0000000 |
| e |
0.58199405 |
| q (au) |
2.427425 |
| a (au) |
5.807155 |
| i (deg) |
12.393842 |
| Ω (om, deg) |
77.817671 |
| ω (w, deg) |
46.668360 |
| M (ma, deg) |
173.679301 |
等級
散乱 + 全体線形
$$
M_a = (12.890 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
12.890 |
| n |
6.000 |
| gf |
0.836 |
| gb |
-0.500 |
| k |
0.962 |
| δ90 |
1.000 |
| 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 |
19:26:20.33 |
-27:29:14.9 |
HIP 95408 |
33.32 |
| 2026-02-03 12:00 |
19:26:36.30 |
-27:28:58.8 |
HIP 95408 |
36.16 |
| 2026-02-04 00:00 |
19:26:52.22 |
-27:28:42.8 |
HIP 95408 |
39.11 |
| 2026-02-04 12:00 |
19:27:08.11 |
-27:28:26.9 |
HIP 95882 |
39.26 |
| 2026-02-05 00:00 |
19:27:23.94 |
-27:28:11.2 |
HIP 95882 |
35.76 |
| 2026-02-05 12:00 |
19:27:39.74 |
-27:27:55.6 |
HIP 95882 |
32.28 |
| 2026-02-06 00:00 |
19:27:55.49 |
-27:27:40.1 |
HIP 95882 |
28.82 |
| 2026-02-06 12:00 |
19:28:11.20 |
-27:27:24.7 |
HIP 95882 |
25.38 |
| 2026-02-07 00:00 |
19:28:26.86 |
-27:27:09.5 |
HIP 95882 |
21.96 |
| 2026-02-07 12:00 |
19:28:42.47 |
-27:26:54.4 |
HIP 95882 |
18.59 |
| 2026-02-08 00:00 |
19:28:58.04 |
-27:26:39.5 |
HIP 95882 |
15.27 |
| 2026-02-08 12:00 |
19:29:13.56 |
-27:26:24.6 |
HIP 95882 |
12.04 |
| 2026-02-09 00:00 |
19:29:29.03 |
-27:26:10.0 |
HIP 95882 |
8.98 |
| 2026-02-09 12:00 |
19:29:44.45 |
-27:25:55.4 |
HIP 95882 |
6.35 |
| 2026-02-10 00:00 |
19:29:59.82 |
-27:25:41.0 |
HIP 95882 |
4.85 |
| 2026-02-10 12:00 |
19:30:15.14 |
-27:25:26.8 |
HIP 95882 |
5.49 |
| 2026-02-11 00:00 |
19:30:30.41 |
-27:25:12.7 |
HIP 95882 |
7.73 |
| 2026-02-11 12:00 |
19:30:45.63 |
-27:24:58.8 |
HIP 95882 |
10.60 |
| 2026-02-12 00:00 |
19:31:00.80 |
-27:24:45.0 |
HIP 95882 |
13.70 |
| 2026-02-12 12:00 |
19:31:15.91 |
-27:24:31.4 |
HIP 95882 |
16.89 |
| 2026-02-13 00:00 |
19:31:30.96 |
-27:24:17.9 |
HIP 95882 |
20.13 |
| 2026-02-13 12:00 |
19:31:45.97 |
-27:24:04.6 |
HIP 95882 |
23.38 |
| 2026-02-14 00:00 |
19:32:00.91 |
-27:23:51.4 |
HIP 95882 |
26.65 |
| 2026-02-14 12:00 |
19:32:15.81 |
-27:23:38.5 |
HIP 95882 |
29.92 |
| 2026-02-15 00:00 |
19:32:30.64 |
-27:23:25.7 |
HIP 96263 |
29.13 |
| 2026-02-15 12:00 |
19:32:45.42 |
-27:23:13.0 |
HIP 96263 |
26.20 |
| 2026-02-16 00:00 |
19:33:00.13 |
-27:23:00.6 |
HIP 96263 |
23.39 |
| 2026-02-16 12:00 |
19:33:14.79 |
-27:22:48.3 |
HIP 96263 |
20.72 |
| 2026-02-17 00:00 |
19:33:29.39 |
-27:22:36.2 |
HIP 96263 |
18.25 |
| 2026-02-17 12:00 |
19:33:43.93 |
-27:22:24.2 |
HIP 96263 |
16.08 |
| 2026-02-18 00:00 |
19:33:58.41 |
-27:22:12.5 |
HIP 96263 |
14.33 |
| 2026-02-18 12:00 |
19:34:12.82 |
-27:22:00.9 |
HIP 96263 |
13.15 |
| 2026-02-19 00:00 |
19:34:27.17 |
-27:21:49.6 |
HIP 96332 |
10.64 |
| 2026-02-19 12:00 |
19:34:41.46 |
-27:21:38.4 |
HIP 96332 |
8.17 |
| 2026-02-20 00:00 |
19:34:55.68 |
-27:21:27.4 |
HIP 96332 |
6.35 |
| 2026-02-20 12:00 |
19:35:09.84 |
-27:21:16.6 |
HIP 96332 |
5.83 |
| 2026-02-21 00:00 |
19:35:23.94 |
-27:21:06.1 |
HIP 96332 |
6.87 |
| 2026-02-21 12:00 |
19:35:37.97 |
-27:20:55.7 |
HIP 96332 |
8.94 |
| 2026-02-22 00:00 |
19:35:51.93 |
-27:20:45.5 |
HIP 96332 |
11.48 |
| 2026-02-22 12:00 |
19:36:05.82 |
-27:20:35.5 |
HIP 96332 |
14.23 |
| 2026-02-23 00:00 |
19:36:19.65 |
-27:20:25.7 |
HIP 96332 |
17.08 |
| 2026-02-23 12:00 |
19:36:33.40 |
-27:20:16.2 |
HIP 96332 |
19.98 |
| 2026-02-24 00:00 |
19:36:47.09 |
-27:20:06.8 |
HIP 96332 |
22.90 |