C/1936 K1 (Peltier)
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
$$
M_a = (6.050 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
6.050 |
| 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) |
| 2026-02-03 00:00 |
07:51:36.02 |
-20:11:24.0 |
HIP 38216 |
26.00 |
| 2026-02-03 12:00 |
07:51:34.84 |
-20:11:17.8 |
HIP 38216 |
25.73 |
| 2026-02-04 00:00 |
07:51:33.66 |
-20:11:11.5 |
HIP 38216 |
25.46 |
| 2026-02-04 12:00 |
07:51:32.49 |
-20:11:05.1 |
HIP 38216 |
25.19 |
| 2026-02-05 00:00 |
07:51:31.32 |
-20:10:58.7 |
HIP 38216 |
24.92 |
| 2026-02-05 12:00 |
07:51:30.15 |
-20:10:52.1 |
HIP 38216 |
24.66 |
| 2026-02-06 00:00 |
07:51:28.99 |
-20:10:45.5 |
HIP 38216 |
24.39 |
| 2026-02-06 12:00 |
07:51:27.83 |
-20:10:38.7 |
HIP 38216 |
24.13 |
| 2026-02-07 00:00 |
07:51:26.68 |
-20:10:31.9 |
HIP 38216 |
23.87 |
| 2026-02-07 12:00 |
07:51:25.53 |
-20:10:25.0 |
HIP 38216 |
23.61 |
| 2026-02-08 00:00 |
07:51:24.38 |
-20:10:18.0 |
HIP 38216 |
23.35 |
| 2026-02-08 12:00 |
07:51:23.24 |
-20:10:10.9 |
HIP 38216 |
23.10 |
| 2026-02-09 00:00 |
07:51:22.10 |
-20:10:03.8 |
HIP 38216 |
22.84 |
| 2026-02-09 12:00 |
07:51:20.97 |
-20:09:56.5 |
HIP 38216 |
22.59 |
| 2026-02-10 00:00 |
07:51:19.84 |
-20:09:49.2 |
HIP 38216 |
22.34 |
| 2026-02-10 12:00 |
07:51:18.72 |
-20:09:41.8 |
HIP 38216 |
22.09 |
| 2026-02-11 00:00 |
07:51:17.60 |
-20:09:34.3 |
HIP 38216 |
21.85 |
| 2026-02-11 12:00 |
07:51:16.49 |
-20:09:26.7 |
HIP 38216 |
21.61 |
| 2026-02-12 00:00 |
07:51:15.38 |
-20:09:19.0 |
HIP 38216 |
21.37 |
| 2026-02-12 12:00 |
07:51:14.27 |
-20:09:11.2 |
HIP 38216 |
21.13 |
| 2026-02-13 00:00 |
07:51:13.17 |
-20:09:03.4 |
HIP 38216 |
20.90 |
| 2026-02-13 12:00 |
07:51:12.08 |
-20:08:55.5 |
HIP 38216 |
20.67 |
| 2026-02-14 00:00 |
07:51:10.99 |
-20:08:47.5 |
HIP 38216 |
20.44 |
| 2026-02-14 12:00 |
07:51:09.91 |
-20:08:39.4 |
HIP 38216 |
20.21 |
| 2026-02-15 00:00 |
07:51:08.83 |
-20:08:31.3 |
HIP 38216 |
19.99 |
| 2026-02-15 12:00 |
07:51:07.76 |
-20:08:23.1 |
HIP 38216 |
19.77 |
| 2026-02-16 00:00 |
07:51:06.69 |
-20:08:14.8 |
HIP 38216 |
19.56 |
| 2026-02-16 12:00 |
07:51:05.63 |
-20:08:06.4 |
HIP 38216 |
19.35 |
| 2026-02-17 00:00 |
07:51:04.58 |
-20:07:57.9 |
HIP 38216 |
19.14 |
| 2026-02-17 12:00 |
07:51:03.53 |
-20:07:49.4 |
HIP 38216 |
18.93 |
| 2026-02-18 00:00 |
07:51:02.48 |
-20:07:40.8 |
HIP 38216 |
18.73 |
| 2026-02-18 12:00 |
07:51:01.45 |
-20:07:32.1 |
HIP 38216 |
18.53 |
| 2026-02-19 00:00 |
07:51:00.42 |
-20:07:23.3 |
HIP 38216 |
18.34 |
| 2026-02-19 12:00 |
07:50:59.39 |
-20:07:14.5 |
HIP 38216 |
18.15 |
| 2026-02-20 00:00 |
07:50:58.37 |
-20:07:05.6 |
HIP 38216 |
17.97 |
| 2026-02-20 12:00 |
07:50:57.36 |
-20:06:56.6 |
HIP 38216 |
17.79 |
| 2026-02-21 00:00 |
07:50:56.36 |
-20:06:47.6 |
HIP 38216 |
17.61 |
| 2026-02-21 12:00 |
07:50:55.36 |
-20:06:38.5 |
HIP 38216 |
17.44 |
| 2026-02-22 00:00 |
07:50:54.37 |
-20:06:29.3 |
HIP 38216 |
17.27 |
| 2026-02-22 12:00 |
07:50:53.38 |
-20:06:20.1 |
HIP 38216 |
17.11 |
| 2026-02-23 00:00 |
07:50:52.40 |
-20:06:10.8 |
HIP 38216 |
16.95 |
| 2026-02-23 12:00 |
07:50:51.43 |
-20:06:01.4 |
HIP 38216 |
16.80 |
| 2026-02-24 00:00 |
07:50:50.47 |
-20:05:51.9 |
HIP 38216 |
16.65 |