C/1939 B1 (Kozik-Peltier)
メタデータ
| 項目 |
値 |
| Designation |
C/1939 B1 (Kozik-Peltier) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1939-02-06T20:30:18.336960Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:05Z |
| Obs used |
53 |
| NEO |
- |
| M1 |
9.600 |
| K1 |
10.000 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
1939-02-08.0000000 |
| e |
0.99545124 |
| q (au) |
0.716485 |
| a (au) |
157.511966 |
| i (deg) |
63.526389 |
| Ω (om, deg) |
289.609052 |
| ω (w, deg) |
169.024376 |
| M (ma, deg) |
0.000571 |
等級
散乱 + 全体線形
$$
M_a = (8.530 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
8.530 |
| n |
2.000 |
| gf |
0.800 |
| gb |
-1.000 |
| k |
0.800 |
| 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 |
18:56:14.93 |
-39:34:59.6 |
HIP 93005 |
7.71 |
| 2026-02-03 12:00 |
18:56:16.23 |
-39:35:00.6 |
HIP 93005 |
7.51 |
| 2026-02-04 00:00 |
18:56:17.53 |
-39:35:01.7 |
HIP 93005 |
7.33 |
| 2026-02-04 12:00 |
18:56:18.82 |
-39:35:02.8 |
HIP 93005 |
7.14 |
| 2026-02-05 00:00 |
18:56:20.10 |
-39:35:03.9 |
HIP 93005 |
6.97 |
| 2026-02-05 12:00 |
18:56:21.38 |
-39:35:05.1 |
HIP 93005 |
6.80 |
| 2026-02-06 00:00 |
18:56:22.65 |
-39:35:06.3 |
HIP 93005 |
6.64 |
| 2026-02-06 12:00 |
18:56:23.91 |
-39:35:07.6 |
HIP 93005 |
6.48 |
| 2026-02-07 00:00 |
18:56:25.16 |
-39:35:08.9 |
HIP 93005 |
6.33 |
| 2026-02-07 12:00 |
18:56:26.41 |
-39:35:10.2 |
HIP 93005 |
6.19 |
| 2026-02-08 00:00 |
18:56:27.65 |
-39:35:11.6 |
HIP 93005 |
6.05 |
| 2026-02-08 12:00 |
18:56:28.88 |
-39:35:13.0 |
HIP 93005 |
5.92 |
| 2026-02-09 00:00 |
18:56:30.11 |
-39:35:14.5 |
HIP 93005 |
5.81 |
| 2026-02-09 12:00 |
18:56:31.33 |
-39:35:16.0 |
HIP 93005 |
5.70 |
| 2026-02-10 00:00 |
18:56:32.54 |
-39:35:17.6 |
HIP 93005 |
5.60 |
| 2026-02-10 12:00 |
18:56:33.74 |
-39:35:19.2 |
HIP 93005 |
5.51 |
| 2026-02-11 00:00 |
18:56:34.93 |
-39:35:20.9 |
HIP 93005 |
5.43 |
| 2026-02-11 12:00 |
18:56:36.12 |
-39:35:22.5 |
HIP 93005 |
5.35 |
| 2026-02-12 00:00 |
18:56:37.29 |
-39:35:24.3 |
HIP 93005 |
5.29 |
| 2026-02-12 12:00 |
18:56:38.46 |
-39:35:26.1 |
HIP 93005 |
5.24 |
| 2026-02-13 00:00 |
18:56:39.62 |
-39:35:27.9 |
HIP 93005 |
5.21 |
| 2026-02-13 12:00 |
18:56:40.78 |
-39:35:29.7 |
HIP 93005 |
5.18 |
| 2026-02-14 00:00 |
18:56:41.92 |
-39:35:31.7 |
HIP 93005 |
5.16 |
| 2026-02-14 12:00 |
18:56:43.05 |
-39:35:33.6 |
HIP 93005 |
5.15 |
| 2026-02-15 00:00 |
18:56:44.18 |
-39:35:35.6 |
HIP 93005 |
5.15 |
| 2026-02-15 12:00 |
18:56:45.30 |
-39:35:37.6 |
HIP 93005 |
5.17 |
| 2026-02-16 00:00 |
18:56:46.41 |
-39:35:39.7 |
HIP 93005 |
5.19 |
| 2026-02-16 12:00 |
18:56:47.50 |
-39:35:41.8 |
HIP 93005 |
5.22 |
| 2026-02-17 00:00 |
18:56:48.59 |
-39:35:44.0 |
HIP 93005 |
5.27 |
| 2026-02-17 12:00 |
18:56:49.68 |
-39:35:46.2 |
HIP 93005 |
5.32 |
| 2026-02-18 00:00 |
18:56:50.75 |
-39:35:48.4 |
HIP 93005 |
5.37 |
| 2026-02-18 12:00 |
18:56:51.81 |
-39:35:50.7 |
HIP 93005 |
5.44 |
| 2026-02-19 00:00 |
18:56:52.86 |
-39:35:53.0 |
HIP 93005 |
5.51 |
| 2026-02-19 12:00 |
18:56:53.91 |
-39:35:55.3 |
HIP 93005 |
5.60 |
| 2026-02-20 00:00 |
18:56:54.94 |
-39:35:57.7 |
HIP 93005 |
5.68 |
| 2026-02-20 12:00 |
18:56:55.96 |
-39:36:00.2 |
HIP 93005 |
5.78 |
| 2026-02-21 00:00 |
18:56:56.98 |
-39:36:02.7 |
HIP 93005 |
5.88 |
| 2026-02-21 12:00 |
18:56:57.98 |
-39:36:05.2 |
HIP 93005 |
5.98 |
| 2026-02-22 00:00 |
18:56:58.98 |
-39:36:07.7 |
HIP 93005 |
6.09 |
| 2026-02-22 12:00 |
18:56:59.96 |
-39:36:10.3 |
HIP 93005 |
6.20 |
| 2026-02-23 00:00 |
18:57:00.94 |
-39:36:13.0 |
HIP 93005 |
6.32 |
| 2026-02-23 12:00 |
18:57:01.90 |
-39:36:15.6 |
HIP 93005 |
6.44 |
| 2026-02-24 00:00 |
18:57:02.86 |
-39:36:18.3 |
HIP 93005 |
6.56 |