メタデータ
| 項目 |
値 |
| Designation |
C/1996 R3 (Lagerkvist) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1995-07-24T19:24:20.646720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:50Z |
| Obs used |
11 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
1996-09-25.0000000 |
| e |
0.98703434 |
| q (au) |
5.238237 |
| a (au) |
404.008511 |
| i (deg) |
39.201397 |
| Ω (om, deg) |
172.724584 |
| ω (w, deg) |
130.933238 |
| M (ma, deg) |
0.051970 |
等級
散乱 + 全体線形
$$
M_a = (10.448 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
10.448 |
| n |
2.000 |
| gf |
0.968 |
| gb |
-0.667 |
| k |
1.000 |
| δ90 |
9.960 |
| 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) |
| 2026-06-01 00:00 |
05:53:06.65 |
-14:54:54.2 |
HIP 27765 |
23.02 |
| 2026-06-01 12:00 |
05:53:09.08 |
-14:54:46.9 |
HIP 27765 |
23.12 |
| 2026-06-02 00:00 |
05:53:11.52 |
-14:54:39.8 |
HIP 27765 |
23.25 |
| 2026-06-02 12:00 |
05:53:13.97 |
-14:54:32.9 |
HIP 27765 |
23.39 |
| 2026-06-03 00:00 |
05:53:16.42 |
-14:54:26.2 |
HIP 27765 |
23.55 |
| 2026-06-03 12:00 |
05:53:18.88 |
-14:54:19.6 |
HIP 27765 |
23.73 |
| 2026-06-04 00:00 |
05:53:21.35 |
-14:54:13.2 |
HIP 27765 |
23.92 |
| 2026-06-04 12:00 |
05:53:23.81 |
-14:54:07.0 |
HIP 27765 |
24.13 |
| 2026-06-05 00:00 |
05:53:26.29 |
-14:54:01.0 |
HIP 27765 |
24.36 |
| 2026-06-05 12:00 |
05:53:28.77 |
-14:53:55.1 |
HIP 27765 |
24.61 |
| 2026-06-06 00:00 |
05:53:31.25 |
-14:53:49.4 |
HIP 27765 |
24.87 |
| 2026-06-06 12:00 |
05:53:33.74 |
-14:53:43.9 |
HIP 27765 |
25.14 |
| 2026-06-07 00:00 |
05:53:36.23 |
-14:53:38.6 |
HIP 27765 |
25.43 |
| 2026-06-07 12:00 |
05:53:38.72 |
-14:53:33.4 |
HIP 27765 |
25.73 |
| 2026-06-08 00:00 |
05:53:41.22 |
-14:53:28.4 |
HIP 27765 |
26.05 |
| 2026-06-08 12:00 |
05:53:43.73 |
-14:53:23.6 |
HIP 27765 |
26.38 |
| 2026-06-09 00:00 |
05:53:46.23 |
-14:53:19.0 |
HIP 27765 |
26.72 |
| 2026-06-09 12:00 |
05:53:48.74 |
-14:53:14.5 |
HIP 27765 |
27.08 |
| 2026-06-10 00:00 |
05:53:51.26 |
-14:53:10.2 |
HIP 27765 |
27.44 |
| 2026-06-10 12:00 |
05:53:53.78 |
-14:53:06.1 |
HIP 27765 |
27.82 |
| 2026-06-11 00:00 |
05:53:56.30 |
-14:53:02.2 |
HIP 27765 |
28.21 |
| 2026-06-11 12:00 |
05:53:58.82 |
-14:52:58.5 |
HIP 27765 |
28.61 |
| 2026-06-12 00:00 |
05:54:01.35 |
-14:52:54.9 |
HIP 27765 |
29.02 |
| 2026-06-12 12:00 |
05:54:03.88 |
-14:52:51.5 |
HIP 27765 |
29.44 |
| 2026-06-13 00:00 |
05:54:06.41 |
-14:52:48.3 |
HIP 27765 |
29.86 |
| 2026-06-13 12:00 |
05:54:08.94 |
-14:52:45.3 |
HIP 27880 |
30.03 |
| 2026-06-14 00:00 |
05:54:11.48 |
-14:52:42.4 |
HIP 27880 |
30.04 |
| 2026-06-14 12:00 |
05:54:14.02 |
-14:52:39.8 |
HIP 27880 |
30.07 |
| 2026-06-15 00:00 |
05:54:16.56 |
-14:52:37.3 |
HIP 27880 |
30.11 |
| 2026-06-15 12:00 |
05:54:19.10 |
-14:52:35.0 |
HIP 27880 |
30.16 |
| 2026-06-16 00:00 |
05:54:21.64 |
-14:52:32.9 |
HIP 27880 |
30.23 |
| 2026-06-16 12:00 |
05:54:24.19 |
-14:52:30.9 |
HIP 27880 |
30.32 |
| 2026-06-17 00:00 |
05:54:26.73 |
-14:52:29.2 |
HIP 27880 |
30.42 |
| 2026-06-17 12:00 |
05:54:29.28 |
-14:52:27.6 |
HIP 27880 |
30.54 |
| 2026-06-18 00:00 |
05:54:31.82 |
-14:52:26.2 |
HIP 27880 |
30.67 |
| 2026-06-18 12:00 |
05:54:34.37 |
-14:52:25.0 |
HIP 27880 |
30.82 |
| 2026-06-19 00:00 |
05:54:36.92 |
-14:52:23.9 |
HIP 27880 |
30.98 |
| 2026-06-19 12:00 |
05:54:39.47 |
-14:52:23.1 |
HIP 27880 |
31.16 |
| 2026-06-20 00:00 |
05:54:42.02 |
-14:52:22.4 |
HIP 27880 |
31.35 |
| 2026-06-20 12:00 |
05:54:44.56 |
-14:52:21.9 |
HIP 27880 |
31.55 |
| 2026-06-21 00:00 |
05:54:47.11 |
-14:52:21.6 |
HIP 27880 |
31.77 |
| 2026-06-21 12:00 |
05:54:49.66 |
-14:52:21.5 |
HIP 27880 |
32.00 |
| 2026-06-22 00:00 |
05:54:52.20 |
-14:52:21.5 |
HIP 27880 |
32.24 |