メタデータ
| 項目 |
値 |
| Designation |
C/1948 L1 (Honda-Bernasconi) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1948-05-15T23:03:10.120320Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:09Z |
| Obs used |
17 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
1948-06-25.0000000 |
| e |
1.00103010 |
| q (au) |
0.206577 |
| a (au) |
-200.540589 |
| i (deg) |
23.190084 |
| Ω (om, deg) |
203.661991 |
| ω (w, deg) |
317.153520 |
| M (ma, deg) |
0.013896 |
等級
散乱 + 全体線形
$$
M_a = (7.694 + 4.502\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
7.694 |
| n |
4.502 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
1.000 |
| 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) |
| 2026-07-29 00:00 |
22:12:30.15 |
+07:22:26.1 |
HIP 109641 |
2.67 |
| 2026-07-29 12:00 |
22:12:29.21 |
+07:22:23.2 |
HIP 109641 |
2.87 |
| 2026-07-30 00:00 |
22:12:28.27 |
+07:22:20.3 |
HIP 109641 |
3.09 |
| 2026-07-30 12:00 |
22:12:27.33 |
+07:22:17.4 |
HIP 109641 |
3.31 |
| 2026-07-31 00:00 |
22:12:26.38 |
+07:22:14.3 |
HIP 109641 |
3.53 |
| 2026-07-31 12:00 |
22:12:25.43 |
+07:22:11.3 |
HIP 109641 |
3.75 |
| 2026-08-01 00:00 |
22:12:24.48 |
+07:22:08.1 |
HIP 109641 |
3.98 |
| 2026-08-01 12:00 |
22:12:23.52 |
+07:22:04.9 |
HIP 109641 |
4.21 |
| 2026-08-02 00:00 |
22:12:22.56 |
+07:22:01.7 |
HIP 109641 |
4.45 |
| 2026-08-02 12:00 |
22:12:21.59 |
+07:21:58.3 |
HIP 109641 |
4.68 |
| 2026-08-03 00:00 |
22:12:20.62 |
+07:21:55.0 |
HIP 109641 |
4.92 |
| 2026-08-03 12:00 |
22:12:19.65 |
+07:21:51.5 |
HIP 109641 |
5.16 |
| 2026-08-04 00:00 |
22:12:18.68 |
+07:21:48.0 |
HIP 109641 |
5.41 |
| 2026-08-04 12:00 |
22:12:17.70 |
+07:21:44.5 |
HIP 109641 |
5.65 |
| 2026-08-05 00:00 |
22:12:16.72 |
+07:21:40.9 |
HIP 109641 |
5.89 |
| 2026-08-05 12:00 |
22:12:15.74 |
+07:21:37.2 |
HIP 109641 |
6.14 |
| 2026-08-06 00:00 |
22:12:14.75 |
+07:21:33.5 |
HIP 109641 |
6.39 |
| 2026-08-06 12:00 |
22:12:13.76 |
+07:21:29.7 |
HIP 109641 |
6.64 |
| 2026-08-07 00:00 |
22:12:12.77 |
+07:21:25.9 |
HIP 109641 |
6.89 |
| 2026-08-07 12:00 |
22:12:11.77 |
+07:21:22.0 |
HIP 109641 |
7.14 |
| 2026-08-08 00:00 |
22:12:10.78 |
+07:21:18.0 |
HIP 109641 |
7.39 |
| 2026-08-08 12:00 |
22:12:09.78 |
+07:21:14.0 |
HIP 109641 |
7.65 |
| 2026-08-09 00:00 |
22:12:08.77 |
+07:21:10.0 |
HIP 109641 |
7.90 |
| 2026-08-09 12:00 |
22:12:07.77 |
+07:21:05.8 |
HIP 109641 |
8.16 |
| 2026-08-10 00:00 |
22:12:06.76 |
+07:21:01.7 |
HIP 109641 |
8.42 |
| 2026-08-10 12:00 |
22:12:05.76 |
+07:20:57.4 |
HIP 109641 |
8.68 |
| 2026-08-11 00:00 |
22:12:04.74 |
+07:20:53.2 |
HIP 109641 |
8.94 |
| 2026-08-11 12:00 |
22:12:03.73 |
+07:20:48.8 |
HIP 109641 |
9.20 |
| 2026-08-12 00:00 |
22:12:02.72 |
+07:20:44.4 |
HIP 109641 |
9.46 |
| 2026-08-12 12:00 |
22:12:01.70 |
+07:20:40.0 |
HIP 109641 |
9.72 |
| 2026-08-13 00:00 |
22:12:00.68 |
+07:20:35.5 |
HIP 109641 |
9.98 |
| 2026-08-13 12:00 |
22:11:59.66 |
+07:20:30.9 |
HIP 109641 |
10.24 |
| 2026-08-14 00:00 |
22:11:58.64 |
+07:20:26.3 |
HIP 109641 |
10.51 |
| 2026-08-14 12:00 |
22:11:57.62 |
+07:20:21.6 |
HIP 109641 |
10.77 |
| 2026-08-15 00:00 |
22:11:56.59 |
+07:20:16.9 |
HIP 109641 |
11.04 |
| 2026-08-15 12:00 |
22:11:55.56 |
+07:20:12.2 |
HIP 109641 |
11.31 |
| 2026-08-16 00:00 |
22:11:54.54 |
+07:20:07.3 |
HIP 109641 |
11.57 |
| 2026-08-16 12:00 |
22:11:53.51 |
+07:20:02.5 |
HIP 109641 |
11.84 |
| 2026-08-17 00:00 |
22:11:52.48 |
+07:19:57.5 |
HIP 109641 |
12.11 |
| 2026-08-17 12:00 |
22:11:51.45 |
+07:19:52.6 |
HIP 109641 |
12.38 |
| 2026-08-18 00:00 |
22:11:50.41 |
+07:19:47.6 |
HIP 109641 |
12.64 |
| 2026-08-18 12:00 |
22:11:49.38 |
+07:19:42.5 |
HIP 109641 |
12.91 |
| 2026-08-19 00:00 |
22:11:48.35 |
+07:19:37.4 |
HIP 109641 |
13.18 |