メタデータ
| 項目 |
値 |
| Designation |
C/1954 O1 (Vozarova) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1954-06-01T22:01:56.046720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:12Z |
| Obs used |
4 |
| 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) |
1954-11-09.0000000 |
| e |
1.07365063 |
| q (au) |
0.781184 |
| a (au) |
-10.606611 |
| i (deg) |
115.183591 |
| Ω (om, deg) |
123.985753 |
| ω (w, deg) |
5.108240 |
| M (ma, deg) |
4.567532 |
等級
散乱 + 全体線形
$$
M_a = (4.780 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
4.780 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| k |
1.000 |
| 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) |
| 2026-05-12 00:00 |
20:40:39.21 |
-01:50:35.2 |
HIP 102116 |
15.73 |
| 2026-05-12 12:00 |
20:40:39.05 |
-01:50:32.9 |
HIP 102116 |
15.76 |
| 2026-05-13 00:00 |
20:40:38.89 |
-01:50:30.6 |
HIP 102116 |
15.79 |
| 2026-05-13 12:00 |
20:40:38.73 |
-01:50:28.4 |
HIP 102116 |
15.82 |
| 2026-05-14 00:00 |
20:40:38.56 |
-01:50:26.2 |
HIP 102116 |
15.86 |
| 2026-05-14 12:00 |
20:40:38.38 |
-01:50:24.0 |
HIP 102116 |
15.89 |
| 2026-05-15 00:00 |
20:40:38.20 |
-01:50:21.8 |
HIP 102116 |
15.93 |
| 2026-05-15 12:00 |
20:40:38.01 |
-01:50:19.7 |
HIP 102116 |
15.97 |
| 2026-05-16 00:00 |
20:40:37.82 |
-01:50:17.6 |
HIP 102116 |
16.01 |
| 2026-05-16 12:00 |
20:40:37.62 |
-01:50:15.5 |
HIP 102116 |
16.06 |
| 2026-05-17 00:00 |
20:40:37.42 |
-01:50:13.5 |
HIP 102116 |
16.10 |
| 2026-05-17 12:00 |
20:40:37.21 |
-01:50:11.5 |
HIP 102116 |
16.15 |
| 2026-05-18 00:00 |
20:40:36.99 |
-01:50:09.5 |
HIP 102116 |
16.19 |
| 2026-05-18 12:00 |
20:40:36.77 |
-01:50:07.6 |
HIP 102116 |
16.24 |
| 2026-05-19 00:00 |
20:40:36.54 |
-01:50:05.7 |
HIP 102116 |
16.29 |
| 2026-05-19 12:00 |
20:40:36.31 |
-01:50:03.8 |
HIP 102116 |
16.35 |
| 2026-05-20 00:00 |
20:40:36.08 |
-01:50:01.9 |
HIP 102116 |
16.40 |
| 2026-05-20 12:00 |
20:40:35.83 |
-01:50:00.1 |
HIP 102116 |
16.45 |
| 2026-05-21 00:00 |
20:40:35.58 |
-01:49:58.3 |
HIP 102116 |
16.51 |
| 2026-05-21 12:00 |
20:40:35.33 |
-01:49:56.5 |
HIP 102116 |
16.57 |
| 2026-05-22 00:00 |
20:40:35.07 |
-01:49:54.8 |
HIP 102116 |
16.63 |
| 2026-05-22 12:00 |
20:40:34.81 |
-01:49:53.1 |
HIP 102116 |
16.69 |
| 2026-05-23 00:00 |
20:40:34.54 |
-01:49:51.4 |
HIP 102116 |
16.75 |
| 2026-05-23 12:00 |
20:40:34.26 |
-01:49:49.8 |
HIP 102116 |
16.82 |
| 2026-05-24 00:00 |
20:40:33.98 |
-01:49:48.2 |
HIP 102116 |
16.88 |
| 2026-05-24 12:00 |
20:40:33.69 |
-01:49:46.6 |
HIP 102116 |
16.95 |
| 2026-05-25 00:00 |
20:40:33.40 |
-01:49:45.0 |
HIP 102116 |
17.02 |
| 2026-05-25 12:00 |
20:40:33.10 |
-01:49:43.5 |
HIP 102116 |
17.09 |
| 2026-05-26 00:00 |
20:40:32.80 |
-01:49:42.0 |
HIP 102116 |
17.16 |
| 2026-05-26 12:00 |
20:40:32.50 |
-01:49:40.5 |
HIP 102116 |
17.23 |
| 2026-05-27 00:00 |
20:40:32.18 |
-01:49:39.1 |
HIP 102116 |
17.31 |
| 2026-05-27 12:00 |
20:40:31.87 |
-01:49:37.7 |
HIP 102116 |
17.38 |
| 2026-05-28 00:00 |
20:40:31.54 |
-01:49:36.4 |
HIP 102116 |
17.46 |
| 2026-05-28 12:00 |
20:40:31.22 |
-01:49:35.0 |
HIP 102116 |
17.54 |
| 2026-05-29 00:00 |
20:40:30.88 |
-01:49:33.7 |
HIP 102116 |
17.62 |
| 2026-05-29 12:00 |
20:40:30.55 |
-01:49:32.5 |
HIP 102116 |
17.70 |
| 2026-05-30 00:00 |
20:40:30.20 |
-01:49:31.2 |
HIP 102116 |
17.78 |
| 2026-05-30 12:00 |
20:40:29.85 |
-01:49:30.0 |
HIP 102116 |
17.87 |
| 2026-05-31 00:00 |
20:40:29.50 |
-01:49:28.8 |
HIP 102116 |
17.95 |
| 2026-05-31 12:00 |
20:40:29.14 |
-01:49:27.7 |
HIP 102116 |
18.04 |
| 2026-06-01 00:00 |
20:40:28.78 |
-01:49:26.6 |
HIP 102116 |
18.13 |
| 2026-06-01 12:00 |
20:40:28.41 |
-01:49:25.5 |
HIP 102116 |
18.22 |
| 2026-06-02 00:00 |
20:40:28.04 |
-01:49:24.5 |
HIP 102116 |
18.31 |