メタデータ
| 項目 |
値 |
| Designation |
C/1933 D1 (Peltier) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1933-02-06T16:43:23.779200Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:05Z |
| Obs used |
14 |
| NEO |
- |
| M1 |
11.300 |
| K1 |
12.000 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
1933-03-01.0000000 |
| e |
0.99999873 |
| q (au) |
1.000679 |
| a (au) |
787220.711133 |
| i (deg) |
86.680374 |
| Ω (om, deg) |
312.466777 |
| ω (w, deg) |
135.984212 |
| M (ma, deg) |
0.000000 |
等級
散乱 + 全体線形
$$
M_a = (10.760 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
10.760 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-06-01 00:00 |
23:04:24.23 |
-68:16:45.3 |
HIP 113911 |
4.53 |
| 2026-06-01 12:00 |
23:04:24.43 |
-68:16:58.5 |
HIP 113911 |
4.34 |
| 2026-06-02 00:00 |
23:04:24.61 |
-68:17:11.7 |
HIP 113911 |
4.15 |
| 2026-06-02 12:00 |
23:04:24.76 |
-68:17:25.0 |
HIP 113911 |
3.96 |
| 2026-06-03 00:00 |
23:04:24.90 |
-68:17:38.3 |
HIP 113911 |
3.77 |
| 2026-06-03 12:00 |
23:04:25.01 |
-68:17:51.6 |
HIP 113911 |
3.59 |
| 2026-06-04 00:00 |
23:04:25.10 |
-68:18:05.0 |
HIP 113911 |
3.41 |
| 2026-06-04 12:00 |
23:04:25.17 |
-68:18:18.3 |
HIP 113911 |
3.23 |
| 2026-06-05 00:00 |
23:04:25.22 |
-68:18:31.8 |
HIP 113911 |
3.06 |
| 2026-06-05 12:00 |
23:04:25.25 |
-68:18:45.2 |
HIP 113911 |
2.89 |
| 2026-06-06 00:00 |
23:04:25.25 |
-68:18:58.6 |
HIP 113911 |
2.73 |
| 2026-06-06 12:00 |
23:04:25.24 |
-68:19:12.1 |
HIP 113911 |
2.57 |
| 2026-06-07 00:00 |
23:04:25.20 |
-68:19:25.6 |
HIP 113911 |
2.43 |
| 2026-06-07 12:00 |
23:04:25.14 |
-68:19:39.2 |
HIP 113911 |
2.30 |
| 2026-06-08 00:00 |
23:04:25.06 |
-68:19:52.7 |
HIP 113911 |
2.18 |
| 2026-06-08 12:00 |
23:04:24.95 |
-68:20:06.3 |
HIP 113911 |
2.07 |
| 2026-06-09 00:00 |
23:04:24.83 |
-68:20:19.9 |
HIP 113911 |
1.99 |
| 2026-06-09 12:00 |
23:04:24.68 |
-68:20:33.5 |
HIP 113911 |
1.92 |
| 2026-06-10 00:00 |
23:04:24.51 |
-68:20:47.1 |
HIP 113911 |
1.88 |
| 2026-06-10 12:00 |
23:04:24.32 |
-68:21:00.8 |
HIP 113911 |
1.86 |
| 2026-06-11 00:00 |
23:04:24.11 |
-68:21:14.4 |
HIP 113911 |
1.87 |
| 2026-06-11 12:00 |
23:04:23.88 |
-68:21:28.1 |
HIP 113953 |
1.80 |
| 2026-06-12 00:00 |
23:04:23.62 |
-68:21:41.8 |
HIP 113953 |
1.66 |
| 2026-06-12 12:00 |
23:04:23.34 |
-68:21:55.5 |
HIP 113953 |
1.54 |
| 2026-06-13 00:00 |
23:04:23.04 |
-68:22:09.2 |
HIP 113953 |
1.46 |
| 2026-06-13 12:00 |
23:04:22.72 |
-68:22:22.9 |
HIP 113953 |
1.41 |
| 2026-06-14 00:00 |
23:04:22.38 |
-68:22:36.7 |
HIP 113953 |
1.40 |
| 2026-06-14 12:00 |
23:04:22.01 |
-68:22:50.4 |
HIP 113953 |
1.43 |
| 2026-06-15 00:00 |
23:04:21.63 |
-68:23:04.2 |
HIP 113953 |
1.50 |
| 2026-06-15 12:00 |
23:04:21.22 |
-68:23:17.9 |
HIP 113953 |
1.60 |
| 2026-06-16 00:00 |
23:04:20.79 |
-68:23:31.7 |
HIP 113953 |
1.72 |
| 2026-06-16 12:00 |
23:04:20.33 |
-68:23:45.4 |
HIP 113953 |
1.87 |
| 2026-06-17 00:00 |
23:04:19.86 |
-68:23:59.2 |
HIP 113953 |
2.04 |
| 2026-06-17 12:00 |
23:04:19.36 |
-68:24:13.0 |
HIP 113953 |
2.22 |
| 2026-06-18 00:00 |
23:04:18.85 |
-68:24:26.8 |
HIP 113953 |
2.41 |
| 2026-06-18 12:00 |
23:04:18.31 |
-68:24:40.5 |
HIP 113953 |
2.61 |
| 2026-06-19 00:00 |
23:04:17.75 |
-68:24:54.3 |
HIP 113953 |
2.82 |
| 2026-06-19 12:00 |
23:04:17.17 |
-68:25:08.1 |
HIP 113953 |
3.03 |
| 2026-06-20 00:00 |
23:04:16.56 |
-68:25:21.8 |
HIP 113953 |
3.24 |
| 2026-06-20 12:00 |
23:04:15.94 |
-68:25:35.6 |
HIP 113953 |
3.46 |
| 2026-06-21 00:00 |
23:04:15.29 |
-68:25:49.3 |
HIP 113953 |
3.69 |
| 2026-06-21 12:00 |
23:04:14.62 |
-68:26:03.1 |
HIP 113953 |
3.91 |
| 2026-06-22 00:00 |
23:04:13.93 |
-68:26:16.8 |
HIP 113953 |
4.14 |