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) |
| 2026-06-01 00:00 |
22:13:38.23 |
+07:20:49.2 |
HIP 109641 |
15.25 |
| 2026-06-01 12:00 |
22:13:38.08 |
+07:20:53.5 |
HIP 109641 |
15.20 |
| 2026-06-02 00:00 |
22:13:37.92 |
+07:20:57.7 |
HIP 109641 |
15.15 |
| 2026-06-02 12:00 |
22:13:37.76 |
+07:21:01.9 |
HIP 109641 |
15.10 |
| 2026-06-03 00:00 |
22:13:37.59 |
+07:21:06.1 |
HIP 109641 |
15.04 |
| 2026-06-03 12:00 |
22:13:37.40 |
+07:21:10.2 |
HIP 109641 |
14.98 |
| 2026-06-04 00:00 |
22:13:37.21 |
+07:21:14.2 |
HIP 109641 |
14.92 |
| 2026-06-04 12:00 |
22:13:37.01 |
+07:21:18.2 |
HIP 109641 |
14.86 |
| 2026-06-05 00:00 |
22:13:36.80 |
+07:21:22.1 |
HIP 109641 |
14.80 |
| 2026-06-05 12:00 |
22:13:36.59 |
+07:21:25.9 |
HIP 109641 |
14.73 |
| 2026-06-06 00:00 |
22:13:36.36 |
+07:21:29.8 |
HIP 109641 |
14.66 |
| 2026-06-06 12:00 |
22:13:36.13 |
+07:21:33.5 |
HIP 109641 |
14.60 |
| 2026-06-07 00:00 |
22:13:35.89 |
+07:21:37.2 |
HIP 109641 |
14.53 |
| 2026-06-07 12:00 |
22:13:35.63 |
+07:21:40.9 |
HIP 109641 |
14.45 |
| 2026-06-08 00:00 |
22:13:35.38 |
+07:21:44.5 |
HIP 109641 |
14.38 |
| 2026-06-08 12:00 |
22:13:35.11 |
+07:21:48.0 |
HIP 109641 |
14.30 |
| 2026-06-09 00:00 |
22:13:34.83 |
+07:21:51.5 |
HIP 109641 |
14.23 |
| 2026-06-09 12:00 |
22:13:34.55 |
+07:21:54.9 |
HIP 109641 |
14.15 |
| 2026-06-10 00:00 |
22:13:34.25 |
+07:21:58.2 |
HIP 109641 |
14.07 |
| 2026-06-10 12:00 |
22:13:33.95 |
+07:22:01.6 |
HIP 109641 |
13.98 |
| 2026-06-11 00:00 |
22:13:33.64 |
+07:22:04.8 |
HIP 109641 |
13.90 |
| 2026-06-11 12:00 |
22:13:33.32 |
+07:22:08.0 |
HIP 109641 |
13.81 |
| 2026-06-12 00:00 |
22:13:33.00 |
+07:22:11.1 |
HIP 109641 |
13.73 |
| 2026-06-12 12:00 |
22:13:32.66 |
+07:22:14.2 |
HIP 109641 |
13.64 |
| 2026-06-13 00:00 |
22:13:32.32 |
+07:22:17.2 |
HIP 109641 |
13.55 |
| 2026-06-13 12:00 |
22:13:31.96 |
+07:22:20.2 |
HIP 109641 |
13.45 |
| 2026-06-14 00:00 |
22:13:31.60 |
+07:22:23.0 |
HIP 109641 |
13.36 |
| 2026-06-14 12:00 |
22:13:31.24 |
+07:22:25.9 |
HIP 109641 |
13.26 |
| 2026-06-15 00:00 |
22:13:30.86 |
+07:22:28.7 |
HIP 109641 |
13.16 |
| 2026-06-15 12:00 |
22:13:30.47 |
+07:22:31.4 |
HIP 109641 |
13.06 |
| 2026-06-16 00:00 |
22:13:30.08 |
+07:22:34.0 |
HIP 109641 |
12.96 |
| 2026-06-16 12:00 |
22:13:29.68 |
+07:22:36.6 |
HIP 109641 |
12.85 |
| 2026-06-17 00:00 |
22:13:29.27 |
+07:22:39.1 |
HIP 109641 |
12.75 |
| 2026-06-17 12:00 |
22:13:28.85 |
+07:22:41.6 |
HIP 109641 |
12.64 |
| 2026-06-18 00:00 |
22:13:28.43 |
+07:22:44.0 |
HIP 109641 |
12.53 |
| 2026-06-18 12:00 |
22:13:27.99 |
+07:22:46.4 |
HIP 109641 |
12.42 |
| 2026-06-19 00:00 |
22:13:27.55 |
+07:22:48.6 |
HIP 109641 |
12.31 |
| 2026-06-19 12:00 |
22:13:27.10 |
+07:22:50.9 |
HIP 109641 |
12.19 |
| 2026-06-20 00:00 |
22:13:26.64 |
+07:22:53.0 |
HIP 109641 |
12.08 |
| 2026-06-20 12:00 |
22:13:26.18 |
+07:22:55.1 |
HIP 109641 |
11.96 |
| 2026-06-21 00:00 |
22:13:25.71 |
+07:22:57.2 |
HIP 109641 |
11.84 |
| 2026-06-21 12:00 |
22:13:25.23 |
+07:22:59.1 |
HIP 109641 |
11.71 |
| 2026-06-22 00:00 |
22:13:24.74 |
+07:23:01.1 |
HIP 109641 |
11.59 |