メタデータ
| 項目 |
値 |
| Designation |
C/1962 H1 (Honda) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1962-04-20T04:45:37.388160Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:16Z |
| 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) |
1962-05-12.0000000 |
| e |
1.00000000 |
| q (au) |
0.653085 |
| a (au) |
- |
| i (deg) |
72.872963 |
| Ω (om, deg) |
79.819214 |
| ω (w, deg) |
72.139524 |
| M (ma, deg) |
- |
等級
散乱 + 全体線形
$$
M_a = (10.001 + 5.008\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
10.001 |
| n |
5.008 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-05-12 00:00 |
21:48:39.36 |
-77:26:52.7 |
HIP 108162 |
21.32 |
| 2026-05-12 12:00 |
21:48:39.87 |
-77:27:10.3 |
HIP 108162 |
21.38 |
| 2026-05-13 00:00 |
21:48:40.33 |
-77:27:28.0 |
HIP 108162 |
21.45 |
| 2026-05-13 12:00 |
21:48:40.74 |
-77:27:45.6 |
HIP 108162 |
21.53 |
| 2026-05-14 00:00 |
21:48:41.11 |
-77:28:03.3 |
HIP 108162 |
21.61 |
| 2026-05-14 12:00 |
21:48:41.43 |
-77:28:21.0 |
HIP 108162 |
21.70 |
| 2026-05-15 00:00 |
21:48:41.69 |
-77:28:38.8 |
HIP 108162 |
21.79 |
| 2026-05-15 12:00 |
21:48:41.91 |
-77:28:56.6 |
HIP 108162 |
21.89 |
| 2026-05-16 00:00 |
21:48:42.08 |
-77:29:14.4 |
HIP 108162 |
22.00 |
| 2026-05-16 12:00 |
21:48:42.20 |
-77:29:32.2 |
HIP 108162 |
22.12 |
| 2026-05-17 00:00 |
21:48:42.28 |
-77:29:50.1 |
HIP 108162 |
22.23 |
| 2026-05-17 12:00 |
21:48:42.30 |
-77:30:08.0 |
HIP 108162 |
22.36 |
| 2026-05-18 00:00 |
21:48:42.27 |
-77:30:25.9 |
HIP 107999 |
22.36 |
| 2026-05-18 12:00 |
21:48:42.20 |
-77:30:43.8 |
HIP 107999 |
22.12 |
| 2026-05-19 00:00 |
21:48:42.08 |
-77:31:01.7 |
HIP 107999 |
21.88 |
| 2026-05-19 12:00 |
21:48:41.90 |
-77:31:19.7 |
HIP 107999 |
21.64 |
| 2026-05-20 00:00 |
21:48:41.68 |
-77:31:37.7 |
HIP 107999 |
21.41 |
| 2026-05-20 12:00 |
21:48:41.41 |
-77:31:55.7 |
HIP 107999 |
21.18 |
| 2026-05-21 00:00 |
21:48:41.09 |
-77:32:13.7 |
HIP 107999 |
20.96 |
| 2026-05-21 12:00 |
21:48:40.72 |
-77:32:31.7 |
HIP 107999 |
20.74 |
| 2026-05-22 00:00 |
21:48:40.30 |
-77:32:49.7 |
HIP 107999 |
20.52 |
| 2026-05-22 12:00 |
21:48:39.84 |
-77:33:07.8 |
HIP 107999 |
20.31 |
| 2026-05-23 00:00 |
21:48:39.32 |
-77:33:25.8 |
HIP 107999 |
20.09 |
| 2026-05-23 12:00 |
21:48:38.76 |
-77:33:43.9 |
HIP 107999 |
19.89 |
| 2026-05-24 00:00 |
21:48:38.14 |
-77:34:01.9 |
HIP 107999 |
19.69 |
| 2026-05-24 12:00 |
21:48:37.48 |
-77:34:20.0 |
HIP 107999 |
19.49 |
| 2026-05-25 00:00 |
21:48:36.77 |
-77:34:38.1 |
HIP 107999 |
19.29 |
| 2026-05-25 12:00 |
21:48:36.01 |
-77:34:56.1 |
HIP 107999 |
19.11 |
| 2026-05-26 00:00 |
21:48:35.20 |
-77:35:14.2 |
HIP 107999 |
18.92 |
| 2026-05-26 12:00 |
21:48:34.34 |
-77:35:32.3 |
HIP 107999 |
18.74 |
| 2026-05-27 00:00 |
21:48:33.43 |
-77:35:50.3 |
HIP 107999 |
18.57 |
| 2026-05-27 12:00 |
21:48:32.48 |
-77:36:08.4 |
HIP 107999 |
18.40 |
| 2026-05-28 00:00 |
21:48:31.47 |
-77:36:26.4 |
HIP 107999 |
18.24 |
| 2026-05-28 12:00 |
21:48:30.42 |
-77:36:44.5 |
HIP 107999 |
18.08 |
| 2026-05-29 00:00 |
21:48:29.32 |
-77:37:02.5 |
HIP 107999 |
17.93 |
| 2026-05-29 12:00 |
21:48:28.17 |
-77:37:20.6 |
HIP 107999 |
17.78 |
| 2026-05-30 00:00 |
21:48:26.97 |
-77:37:38.6 |
HIP 107999 |
17.65 |
| 2026-05-30 12:00 |
21:48:25.72 |
-77:37:56.6 |
HIP 107999 |
17.51 |
| 2026-05-31 00:00 |
21:48:24.43 |
-77:38:14.6 |
HIP 107999 |
17.39 |
| 2026-05-31 12:00 |
21:48:23.08 |
-77:38:32.6 |
HIP 107999 |
17.27 |
| 2026-06-01 00:00 |
21:48:21.69 |
-77:38:50.5 |
HIP 107999 |
17.16 |
| 2026-06-01 12:00 |
21:48:20.25 |
-77:39:08.5 |
HIP 107999 |
17.05 |
| 2026-06-02 00:00 |
21:48:18.76 |
-77:39:26.4 |
HIP 107999 |
16.95 |