C/1983 J1 (Sugano-Saigusa-Fujikawa)
メタデータ
| 項目 |
値 |
| Designation |
C/1983 J1 (Sugano-Saigusa-Fujikawa) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1983-05-01T07:52:43.495680Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:29Z |
| Obs used |
55 |
| NEO |
- |
| M1 |
12.200 |
| K1 |
15.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
1983-05-15.0000000 |
| e |
0.99990155 |
| q (au) |
0.471084 |
| a (au) |
4784.905650 |
| i (deg) |
96.622884 |
| Ω (om, deg) |
83.039467 |
| ω (w, deg) |
82.173450 |
| M (ma, deg) |
0.000041 |
等級
散乱 + 全体線形
$$
M_a = (11.814 + 5.498\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
11.814 |
| n |
5.498 |
| gf |
0.800 |
| gb |
-0.678 |
| k |
0.974 |
| 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 |
09:26:09.29 |
-79:58:27.1 |
HIP 46556 |
20.33 |
| 2026-02-03 12:00 |
09:25:59.59 |
-79:58:30.1 |
HIP 46556 |
20.57 |
| 2026-02-04 00:00 |
09:25:49.88 |
-79:58:32.9 |
HIP 46556 |
20.82 |
| 2026-02-04 12:00 |
09:25:40.16 |
-79:58:35.4 |
HIP 46556 |
21.06 |
| 2026-02-05 00:00 |
09:25:30.44 |
-79:58:37.6 |
HIP 46556 |
21.31 |
| 2026-02-05 12:00 |
09:25:20.71 |
-79:58:39.6 |
HIP 46556 |
21.56 |
| 2026-02-06 00:00 |
09:25:10.97 |
-79:58:41.4 |
HIP 46556 |
21.82 |
| 2026-02-06 12:00 |
09:25:01.23 |
-79:58:42.9 |
HIP 46556 |
22.07 |
| 2026-02-07 00:00 |
09:24:51.49 |
-79:58:44.2 |
HIP 46556 |
22.33 |
| 2026-02-07 12:00 |
09:24:41.74 |
-79:58:45.2 |
HIP 46556 |
22.59 |
| 2026-02-08 00:00 |
09:24:31.99 |
-79:58:46.0 |
HIP 46556 |
22.85 |
| 2026-02-08 12:00 |
09:24:22.24 |
-79:58:46.5 |
HIP 46556 |
23.12 |
| 2026-02-09 00:00 |
09:24:12.49 |
-79:58:46.8 |
HIP 46556 |
23.38 |
| 2026-02-09 12:00 |
09:24:02.74 |
-79:58:46.8 |
HIP 46556 |
23.65 |
| 2026-02-10 00:00 |
09:23:52.99 |
-79:58:46.6 |
HIP 46556 |
23.92 |
| 2026-02-10 12:00 |
09:23:43.25 |
-79:58:46.1 |
HIP 46556 |
24.19 |
| 2026-02-11 00:00 |
09:23:33.51 |
-79:58:45.4 |
HIP 46556 |
24.46 |
| 2026-02-11 12:00 |
09:23:23.77 |
-79:58:44.5 |
HIP 46556 |
24.74 |
| 2026-02-12 00:00 |
09:23:14.04 |
-79:58:43.3 |
HIP 46556 |
25.01 |
| 2026-02-12 12:00 |
09:23:04.32 |
-79:58:41.8 |
HIP 46556 |
25.29 |
| 2026-02-13 00:00 |
09:22:54.60 |
-79:58:40.1 |
HIP 45829 |
25.41 |
| 2026-02-13 12:00 |
09:22:44.89 |
-79:58:38.1 |
HIP 45829 |
25.35 |
| 2026-02-14 00:00 |
09:22:35.19 |
-79:58:36.0 |
HIP 45829 |
25.30 |
| 2026-02-14 12:00 |
09:22:25.51 |
-79:58:33.5 |
HIP 45829 |
25.26 |
| 2026-02-15 00:00 |
09:22:15.83 |
-79:58:30.8 |
HIP 45829 |
25.24 |
| 2026-02-15 12:00 |
09:22:06.17 |
-79:58:27.9 |
HIP 45829 |
25.22 |
| 2026-02-16 00:00 |
09:21:56.52 |
-79:58:24.7 |
HIP 45829 |
25.22 |
| 2026-02-16 12:00 |
09:21:46.88 |
-79:58:21.3 |
HIP 45829 |
25.22 |
| 2026-02-17 00:00 |
09:21:37.26 |
-79:58:17.6 |
HIP 45829 |
25.24 |
| 2026-02-17 12:00 |
09:21:27.66 |
-79:58:13.7 |
HIP 45829 |
25.27 |
| 2026-02-18 00:00 |
09:21:18.07 |
-79:58:09.5 |
HIP 45829 |
25.31 |
| 2026-02-18 12:00 |
09:21:08.50 |
-79:58:05.1 |
HIP 45829 |
25.36 |
| 2026-02-19 00:00 |
09:20:58.95 |
-79:58:00.5 |
HIP 45829 |
25.42 |
| 2026-02-19 12:00 |
09:20:49.42 |
-79:57:55.6 |
HIP 45829 |
25.49 |
| 2026-02-20 00:00 |
09:20:39.91 |
-79:57:50.4 |
HIP 45829 |
25.58 |
| 2026-02-20 12:00 |
09:20:30.42 |
-79:57:45.0 |
HIP 45829 |
25.67 |
| 2026-02-21 00:00 |
09:20:20.96 |
-79:57:39.4 |
HIP 45829 |
25.77 |
| 2026-02-21 12:00 |
09:20:11.52 |
-79:57:33.6 |
HIP 45829 |
25.88 |
| 2026-02-22 00:00 |
09:20:02.10 |
-79:57:27.5 |
HIP 45829 |
26.01 |
| 2026-02-22 12:00 |
09:19:52.71 |
-79:57:21.1 |
HIP 45829 |
26.14 |
| 2026-02-23 00:00 |
09:19:43.35 |
-79:57:14.5 |
HIP 45829 |
26.28 |
| 2026-02-23 12:00 |
09:19:34.01 |
-79:57:07.7 |
HIP 45829 |
26.44 |
| 2026-02-24 00:00 |
09:19:24.70 |
-79:57:00.7 |
HIP 45829 |
26.60 |