C/1948 L1 (Honda-Bernasconi)
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) |
| 2026-02-03 00:00 |
22:10:59.58 |
+06:55:35.9 |
HIP 109530 |
6.44 |
| 2026-02-03 12:00 |
22:11:00.60 |
+06:55:39.8 |
HIP 109530 |
6.35 |
| 2026-02-04 00:00 |
22:11:01.62 |
+06:55:43.7 |
HIP 109530 |
6.28 |
| 2026-02-04 12:00 |
22:11:02.64 |
+06:55:47.7 |
HIP 109530 |
6.21 |
| 2026-02-05 00:00 |
22:11:03.67 |
+06:55:51.7 |
HIP 109530 |
6.15 |
| 2026-02-05 12:00 |
22:11:04.69 |
+06:55:55.8 |
HIP 109530 |
6.11 |
| 2026-02-06 00:00 |
22:11:05.72 |
+06:56:00.0 |
HIP 109530 |
6.07 |
| 2026-02-06 12:00 |
22:11:06.76 |
+06:56:04.2 |
HIP 109530 |
6.05 |
| 2026-02-07 00:00 |
22:11:07.79 |
+06:56:08.5 |
HIP 109530 |
6.05 |
| 2026-02-07 12:00 |
22:11:08.82 |
+06:56:12.8 |
HIP 109530 |
6.05 |
| 2026-02-08 00:00 |
22:11:09.86 |
+06:56:17.2 |
HIP 109530 |
6.07 |
| 2026-02-08 12:00 |
22:11:10.90 |
+06:56:21.6 |
HIP 109530 |
6.10 |
| 2026-02-09 00:00 |
22:11:11.94 |
+06:56:26.1 |
HIP 109530 |
6.14 |
| 2026-02-09 12:00 |
22:11:12.99 |
+06:56:30.7 |
HIP 109530 |
6.19 |
| 2026-02-10 00:00 |
22:11:14.03 |
+06:56:35.3 |
HIP 109530 |
6.26 |
| 2026-02-10 12:00 |
22:11:15.08 |
+06:56:39.9 |
HIP 109530 |
6.33 |
| 2026-02-11 00:00 |
22:11:16.12 |
+06:56:44.6 |
HIP 109530 |
6.42 |
| 2026-02-11 12:00 |
22:11:17.17 |
+06:56:49.4 |
HIP 109530 |
6.52 |
| 2026-02-12 00:00 |
22:11:18.22 |
+06:56:54.2 |
HIP 109530 |
6.63 |
| 2026-02-12 12:00 |
22:11:19.27 |
+06:56:59.1 |
HIP 109530 |
6.76 |
| 2026-02-13 00:00 |
22:11:20.33 |
+06:57:04.0 |
HIP 109530 |
6.89 |
| 2026-02-13 12:00 |
22:11:21.38 |
+06:57:08.9 |
HIP 109530 |
7.03 |
| 2026-02-14 00:00 |
22:11:22.44 |
+06:57:14.0 |
HIP 109530 |
7.17 |
| 2026-02-14 12:00 |
22:11:23.49 |
+06:57:19.0 |
HIP 109530 |
7.33 |
| 2026-02-15 00:00 |
22:11:24.55 |
+06:57:24.1 |
HIP 109530 |
7.49 |
| 2026-02-15 12:00 |
22:11:25.61 |
+06:57:29.3 |
HIP 109530 |
7.67 |
| 2026-02-16 00:00 |
22:11:26.66 |
+06:57:34.5 |
HIP 109530 |
7.84 |
| 2026-02-16 12:00 |
22:11:27.72 |
+06:57:39.8 |
HIP 109582 |
7.74 |
| 2026-02-17 00:00 |
22:11:28.78 |
+06:57:45.1 |
HIP 109582 |
7.56 |
| 2026-02-17 12:00 |
22:11:29.84 |
+06:57:50.4 |
HIP 109582 |
7.39 |
| 2026-02-18 00:00 |
22:11:30.90 |
+06:57:55.8 |
HIP 109582 |
7.22 |
| 2026-02-18 12:00 |
22:11:31.96 |
+06:58:01.3 |
HIP 109582 |
7.06 |
| 2026-02-19 00:00 |
22:11:33.02 |
+06:58:06.8 |
HIP 109582 |
6.91 |
| 2026-02-19 12:00 |
22:11:34.08 |
+06:58:12.3 |
HIP 109582 |
6.77 |
| 2026-02-20 00:00 |
22:11:35.14 |
+06:58:17.9 |
HIP 109582 |
6.63 |
| 2026-02-20 12:00 |
22:11:36.20 |
+06:58:23.6 |
HIP 109582 |
6.51 |
| 2026-02-21 00:00 |
22:11:37.26 |
+06:58:29.2 |
HIP 109582 |
6.40 |
| 2026-02-21 12:00 |
22:11:38.32 |
+06:58:35.0 |
HIP 109582 |
6.29 |
| 2026-02-22 00:00 |
22:11:39.38 |
+06:58:40.7 |
HIP 109582 |
6.20 |
| 2026-02-22 12:00 |
22:11:40.44 |
+06:58:46.5 |
HIP 109582 |
6.12 |
| 2026-02-23 00:00 |
22:11:41.50 |
+06:58:52.4 |
HIP 109582 |
6.06 |
| 2026-02-23 12:00 |
22:11:42.56 |
+06:58:58.3 |
HIP 109582 |
6.00 |
| 2026-02-24 00:00 |
22:11:43.61 |
+06:59:04.2 |
HIP 109582 |
5.96 |