メタデータ
| 項目 |
値 |
| Designation |
C/1936 K1 (Peltier) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1936-07-08T23:00:20.085120Z |
| Orbit solution date (soln_date, UTC) |
2024-02-20T20:16:47Z |
| Obs used |
113 |
| NEO |
- |
| M1 |
6.600 |
| K1 |
18.000 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
1936-07-04.0000000 |
| e |
0.99195459 |
| q (au) |
1.099880 |
| a (au) |
136.709018 |
| i (deg) |
78.547416 |
| Ω (om, deg) |
134.940673 |
| ω (w, deg) |
148.477869 |
| M (ma, deg) |
359.996943 |
等級
散乱 + 全体線形
$$
M_a = (6.033 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
6.033 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-03-26 00:00 |
07:50:07.51 |
-19:54:56.7 |
HIP 38216 |
18.26 |
| 2026-03-26 12:00 |
07:50:07.08 |
-19:54:44.8 |
HIP 38216 |
18.42 |
| 2026-03-27 00:00 |
07:50:06.65 |
-19:54:33.0 |
HIP 38216 |
18.58 |
| 2026-03-27 12:00 |
07:50:06.24 |
-19:54:21.1 |
HIP 38216 |
18.75 |
| 2026-03-28 00:00 |
07:50:05.83 |
-19:54:09.2 |
HIP 38216 |
18.91 |
| 2026-03-28 12:00 |
07:50:05.44 |
-19:53:57.2 |
HIP 38216 |
19.08 |
| 2026-03-29 00:00 |
07:50:05.06 |
-19:53:45.3 |
HIP 38216 |
19.25 |
| 2026-03-29 12:00 |
07:50:04.68 |
-19:53:33.4 |
HIP 38216 |
19.42 |
| 2026-03-30 00:00 |
07:50:04.32 |
-19:53:21.5 |
HIP 38216 |
19.60 |
| 2026-03-30 12:00 |
07:50:03.96 |
-19:53:09.5 |
HIP 38216 |
19.77 |
| 2026-03-31 00:00 |
07:50:03.62 |
-19:52:57.6 |
HIP 38216 |
19.95 |
| 2026-03-31 12:00 |
07:50:03.29 |
-19:52:45.6 |
HIP 38216 |
20.13 |
| 2026-04-01 00:00 |
07:50:02.96 |
-19:52:33.7 |
HIP 38216 |
20.31 |
| 2026-04-01 12:00 |
07:50:02.65 |
-19:52:21.7 |
HIP 38216 |
20.49 |
| 2026-04-02 00:00 |
07:50:02.35 |
-19:52:09.8 |
HIP 38216 |
20.67 |
| 2026-04-02 12:00 |
07:50:02.06 |
-19:51:57.8 |
HIP 38246 |
20.57 |
| 2026-04-03 00:00 |
07:50:01.77 |
-19:51:45.8 |
HIP 38246 |
20.37 |
| 2026-04-03 12:00 |
07:50:01.50 |
-19:51:33.9 |
HIP 38246 |
20.17 |
| 2026-04-04 00:00 |
07:50:01.24 |
-19:51:21.9 |
HIP 38246 |
19.98 |
| 2026-04-04 12:00 |
07:50:00.99 |
-19:51:10.0 |
HIP 38246 |
19.78 |
| 2026-04-05 00:00 |
07:50:00.75 |
-19:50:58.0 |
HIP 38246 |
19.59 |
| 2026-04-05 12:00 |
07:50:00.52 |
-19:50:46.0 |
HIP 38246 |
19.39 |
| 2026-04-06 00:00 |
07:50:00.30 |
-19:50:34.1 |
HIP 38246 |
19.20 |
| 2026-04-06 12:00 |
07:50:00.09 |
-19:50:22.2 |
HIP 38246 |
19.00 |
| 2026-04-07 00:00 |
07:49:59.89 |
-19:50:10.2 |
HIP 38246 |
18.81 |
| 2026-04-07 12:00 |
07:49:59.70 |
-19:49:58.3 |
HIP 38246 |
18.61 |
| 2026-04-08 00:00 |
07:49:59.52 |
-19:49:46.4 |
HIP 38246 |
18.42 |
| 2026-04-08 12:00 |
07:49:59.35 |
-19:49:34.5 |
HIP 38246 |
18.22 |
| 2026-04-09 00:00 |
07:49:59.19 |
-19:49:22.6 |
HIP 38246 |
18.03 |
| 2026-04-09 12:00 |
07:49:59.04 |
-19:49:10.7 |
HIP 38246 |
17.83 |
| 2026-04-10 00:00 |
07:49:58.91 |
-19:48:58.8 |
HIP 38246 |
17.64 |
| 2026-04-10 12:00 |
07:49:58.78 |
-19:48:46.9 |
HIP 38246 |
17.44 |
| 2026-04-11 00:00 |
07:49:58.66 |
-19:48:35.0 |
HIP 38246 |
17.25 |
| 2026-04-11 12:00 |
07:49:58.56 |
-19:48:23.2 |
HIP 38246 |
17.06 |
| 2026-04-12 00:00 |
07:49:58.46 |
-19:48:11.4 |
HIP 38246 |
16.86 |
| 2026-04-12 12:00 |
07:49:58.38 |
-19:47:59.6 |
HIP 38246 |
16.67 |
| 2026-04-13 00:00 |
07:49:58.30 |
-19:47:47.8 |
HIP 38246 |
16.47 |
| 2026-04-13 12:00 |
07:49:58.24 |
-19:47:36.0 |
HIP 38246 |
16.28 |
| 2026-04-14 00:00 |
07:49:58.18 |
-19:47:24.2 |
HIP 38246 |
16.09 |
| 2026-04-14 12:00 |
07:49:58.14 |
-19:47:12.5 |
HIP 38246 |
15.89 |
| 2026-04-15 00:00 |
07:49:58.11 |
-19:47:00.8 |
HIP 38246 |
15.70 |
| 2026-04-15 12:00 |
07:49:58.09 |
-19:46:49.1 |
HIP 38246 |
15.51 |
| 2026-04-16 00:00 |
07:49:58.08 |
-19:46:37.4 |
HIP 38246 |
15.31 |