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) |
| 2026-09-20 00:00 |
18:52:00.76 |
-39:48:50.5 |
HIP 92534 |
7.18 |
| 2026-09-20 12:00 |
18:52:00.41 |
-39:48:45.8 |
HIP 92534 |
7.14 |
| 2026-09-21 00:00 |
18:52:00.06 |
-39:48:41.0 |
HIP 92534 |
7.11 |
| 2026-09-21 12:00 |
18:51:59.73 |
-39:48:36.3 |
HIP 92534 |
7.08 |
| 2026-09-22 00:00 |
18:51:59.41 |
-39:48:31.5 |
HIP 92534 |
7.05 |
| 2026-09-22 12:00 |
18:51:59.11 |
-39:48:26.7 |
HIP 92534 |
7.03 |
| 2026-09-23 00:00 |
18:51:58.81 |
-39:48:21.9 |
HIP 92534 |
7.01 |
| 2026-09-23 12:00 |
18:51:58.53 |
-39:48:17.0 |
HIP 92534 |
7.00 |
| 2026-09-24 00:00 |
18:51:58.26 |
-39:48:12.2 |
HIP 92534 |
6.98 |
| 2026-09-24 12:00 |
18:51:58.01 |
-39:48:07.3 |
HIP 92534 |
6.98 |
| 2026-09-25 00:00 |
18:51:57.76 |
-39:48:02.4 |
HIP 92534 |
6.97 |
| 2026-09-25 12:00 |
18:51:57.53 |
-39:47:57.5 |
HIP 92534 |
6.97 |
| 2026-09-26 00:00 |
18:51:57.32 |
-39:47:52.5 |
HIP 92534 |
6.97 |
| 2026-09-26 12:00 |
18:51:57.11 |
-39:47:47.6 |
HIP 92534 |
6.98 |
| 2026-09-27 00:00 |
18:51:56.92 |
-39:47:42.6 |
HIP 92534 |
6.99 |
| 2026-09-27 12:00 |
18:51:56.74 |
-39:47:37.6 |
HIP 92534 |
7.00 |
| 2026-09-28 00:00 |
18:51:56.57 |
-39:47:32.6 |
HIP 92534 |
7.02 |
| 2026-09-28 12:00 |
18:51:56.41 |
-39:47:27.5 |
HIP 92534 |
7.04 |
| 2026-09-29 00:00 |
18:51:56.27 |
-39:47:22.5 |
HIP 92534 |
7.06 |
| 2026-09-29 12:00 |
18:51:56.14 |
-39:47:17.4 |
HIP 92534 |
7.08 |
| 2026-09-30 00:00 |
18:51:56.03 |
-39:47:12.4 |
HIP 92534 |
7.11 |
| 2026-09-30 12:00 |
18:51:55.92 |
-39:47:07.3 |
HIP 92534 |
7.15 |
| 2026-10-01 00:00 |
18:51:55.83 |
-39:47:02.1 |
HIP 92534 |
7.18 |
| 2026-10-01 12:00 |
18:51:55.75 |
-39:46:57.0 |
HIP 92534 |
7.22 |
| 2026-10-02 00:00 |
18:51:55.69 |
-39:46:51.9 |
HIP 92534 |
7.26 |
| 2026-10-02 12:00 |
18:51:55.64 |
-39:46:46.7 |
HIP 92534 |
7.30 |
| 2026-10-03 00:00 |
18:51:55.60 |
-39:46:41.6 |
HIP 92534 |
7.35 |
| 2026-10-03 12:00 |
18:51:55.57 |
-39:46:36.4 |
HIP 92534 |
7.40 |
| 2026-10-04 00:00 |
18:51:55.56 |
-39:46:31.2 |
HIP 92534 |
7.45 |
| 2026-10-04 12:00 |
18:51:55.55 |
-39:46:26.0 |
HIP 92534 |
7.51 |
| 2026-10-05 00:00 |
18:51:55.57 |
-39:46:20.7 |
HIP 92534 |
7.57 |
| 2026-10-05 12:00 |
18:51:55.59 |
-39:46:15.5 |
HIP 92534 |
7.63 |
| 2026-10-06 00:00 |
18:51:55.63 |
-39:46:10.3 |
HIP 92534 |
7.69 |
| 2026-10-06 12:00 |
18:51:55.68 |
-39:46:05.0 |
HIP 92534 |
7.76 |
| 2026-10-07 00:00 |
18:51:55.74 |
-39:45:59.7 |
HIP 92534 |
7.82 |
| 2026-10-07 12:00 |
18:51:55.82 |
-39:45:54.5 |
HIP 92534 |
7.89 |
| 2026-10-08 00:00 |
18:51:55.91 |
-39:45:49.2 |
HIP 92534 |
7.97 |
| 2026-10-08 12:00 |
18:51:56.01 |
-39:45:43.9 |
HIP 92534 |
8.04 |
| 2026-10-09 00:00 |
18:51:56.13 |
-39:45:38.5 |
HIP 92534 |
8.12 |
| 2026-10-09 12:00 |
18:51:56.25 |
-39:45:33.2 |
HIP 92534 |
8.20 |
| 2026-10-10 00:00 |
18:51:56.39 |
-39:45:27.9 |
HIP 92534 |
8.28 |
| 2026-10-10 12:00 |
18:51:56.55 |
-39:45:22.6 |
HIP 92534 |
8.36 |
| 2026-10-11 00:00 |
18:51:56.71 |
-39:45:17.2 |
HIP 92534 |
8.45 |