C/1942 C1 (Whipple-Bernasconi-Kulin)
メタデータ
| 項目 |
値 |
| Designation |
C/1942 C1 (Whipple-Bernasconi-Kulin) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1942-04-30T19:52:28.176960Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:05Z |
| Obs used |
8 |
| 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) |
1942-03-29.0000000 |
| e |
1.00101873 |
| q (au) |
1.445344 |
| a (au) |
-1418.765903 |
| i (deg) |
79.454034 |
| Ω (om, deg) |
340.934457 |
| ω (w, deg) |
223.411736 |
| M (ma, deg) |
-0.000605 |
等級
散乱 + 全体線形
$$
M_a = (4.871 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
4.871 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.520 |
| k |
0.800 |
| δ90 |
10.000 |
| 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 |
22:24:10.53 |
+21:22:51.4 |
HIP 110752 |
30.26 |
| 2026-02-03 12:00 |
22:24:11.57 |
+21:22:53.5 |
HIP 110752 |
30.02 |
| 2026-02-04 00:00 |
22:24:12.61 |
+21:22:55.6 |
HIP 110752 |
29.78 |
| 2026-02-04 12:00 |
22:24:13.65 |
+21:22:57.8 |
HIP 110752 |
29.54 |
| 2026-02-05 00:00 |
22:24:14.69 |
+21:23:00.2 |
HIP 110752 |
29.30 |
| 2026-02-05 12:00 |
22:24:15.74 |
+21:23:02.5 |
HIP 110752 |
29.05 |
| 2026-02-06 00:00 |
22:24:16.79 |
+21:23:05.0 |
HIP 110752 |
28.81 |
| 2026-02-06 12:00 |
22:24:17.85 |
+21:23:07.6 |
HIP 110752 |
28.56 |
| 2026-02-07 00:00 |
22:24:18.91 |
+21:23:10.2 |
HIP 110752 |
28.31 |
| 2026-02-07 12:00 |
22:24:19.96 |
+21:23:13.0 |
HIP 110752 |
28.06 |
| 2026-02-08 00:00 |
22:24:21.03 |
+21:23:15.8 |
HIP 110752 |
27.82 |
| 2026-02-08 12:00 |
22:24:22.09 |
+21:23:18.7 |
HIP 110752 |
27.57 |
| 2026-02-09 00:00 |
22:24:23.16 |
+21:23:21.7 |
HIP 110752 |
27.31 |
| 2026-02-09 12:00 |
22:24:24.23 |
+21:23:24.8 |
HIP 110752 |
27.06 |
| 2026-02-10 00:00 |
22:24:25.30 |
+21:23:27.9 |
HIP 110752 |
26.81 |
| 2026-02-10 12:00 |
22:24:26.37 |
+21:23:31.2 |
HIP 110752 |
26.56 |
| 2026-02-11 00:00 |
22:24:27.45 |
+21:23:34.5 |
HIP 110752 |
26.30 |
| 2026-02-11 12:00 |
22:24:28.53 |
+21:23:37.9 |
HIP 110752 |
26.04 |
| 2026-02-12 00:00 |
22:24:29.61 |
+21:23:41.4 |
HIP 110752 |
25.79 |
| 2026-02-12 12:00 |
22:24:30.69 |
+21:23:44.9 |
HIP 110752 |
25.53 |
| 2026-02-13 00:00 |
22:24:31.77 |
+21:23:48.6 |
HIP 110752 |
25.27 |
| 2026-02-13 12:00 |
22:24:32.86 |
+21:23:52.3 |
HIP 110752 |
25.01 |
| 2026-02-14 00:00 |
22:24:33.95 |
+21:23:56.1 |
HIP 110752 |
24.75 |
| 2026-02-14 12:00 |
22:24:35.03 |
+21:24:00.0 |
HIP 110752 |
24.49 |
| 2026-02-15 00:00 |
22:24:36.12 |
+21:24:04.0 |
HIP 110752 |
24.23 |
| 2026-02-15 12:00 |
22:24:37.22 |
+21:24:08.1 |
HIP 110752 |
23.97 |
| 2026-02-16 00:00 |
22:24:38.31 |
+21:24:12.2 |
HIP 110752 |
23.71 |
| 2026-02-16 12:00 |
22:24:39.40 |
+21:24:16.4 |
HIP 110752 |
23.44 |
| 2026-02-17 00:00 |
22:24:40.50 |
+21:24:20.7 |
HIP 110752 |
23.18 |
| 2026-02-17 12:00 |
22:24:41.59 |
+21:24:25.1 |
HIP 110752 |
22.91 |
| 2026-02-18 00:00 |
22:24:42.69 |
+21:24:29.6 |
HIP 110752 |
22.65 |
| 2026-02-18 12:00 |
22:24:43.79 |
+21:24:34.1 |
HIP 110752 |
22.38 |
| 2026-02-19 00:00 |
22:24:44.89 |
+21:24:38.7 |
HIP 110752 |
22.12 |
| 2026-02-19 12:00 |
22:24:45.99 |
+21:24:43.4 |
HIP 110752 |
21.85 |
| 2026-02-20 00:00 |
22:24:47.09 |
+21:24:48.2 |
HIP 110752 |
21.58 |
| 2026-02-20 12:00 |
22:24:48.19 |
+21:24:53.0 |
HIP 110752 |
21.31 |
| 2026-02-21 00:00 |
22:24:49.29 |
+21:24:57.9 |
HIP 110752 |
21.04 |
| 2026-02-21 12:00 |
22:24:50.39 |
+21:25:02.9 |
HIP 110752 |
20.78 |
| 2026-02-22 00:00 |
22:24:51.49 |
+21:25:08.0 |
HIP 110752 |
20.51 |
| 2026-02-22 12:00 |
22:24:52.59 |
+21:25:13.2 |
HIP 110752 |
20.24 |
| 2026-02-23 00:00 |
22:24:53.69 |
+21:25:18.4 |
HIP 110752 |
19.97 |
| 2026-02-23 12:00 |
22:24:54.79 |
+21:25:23.7 |
HIP 110752 |
19.69 |
| 2026-02-24 00:00 |
22:24:55.89 |
+21:25:29.1 |
HIP 110752 |
19.42 |