メタデータ
| 項目 |
値 |
| Designation |
36P/Whipple |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2012-01-01T11:53:10.438080Z |
| Orbit solution date (soln_date, UTC) |
2026-06-18T16:23:53Z |
| Obs used |
949 |
| NEO |
- |
| M1 |
10.700 |
| K1 |
13.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2008-08-08.0000000 |
| e |
0.25822208 |
| q (au) |
3.089237 |
| a (au) |
4.164639 |
| i (deg) |
9.935337 |
| Ω (om, deg) |
182.391190 |
| ω (w, deg) |
201.956986 |
| M (ma, deg) |
216.026335 |
等級
散乱 + 全体線形
$$
M_a = (12.524 + 5.641\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
12.524 |
| n |
5.641 |
| gf |
1.000 |
| gb |
-0.683 |
| 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) |
| 2026-07-29 00:00 |
16:25:56.63 |
-10:24:54.3 |
HIP 80477 |
20.37 |
| 2026-07-29 12:00 |
16:25:53.14 |
-10:25:43.7 |
HIP 80477 |
21.00 |
| 2026-07-30 00:00 |
16:25:49.87 |
-10:26:33.7 |
HIP 80477 |
21.71 |
| 2026-07-30 12:00 |
16:25:46.82 |
-10:27:24.5 |
HIP 80477 |
22.46 |
| 2026-07-31 00:00 |
16:25:43.99 |
-10:28:16.0 |
HIP 80477 |
23.26 |
| 2026-07-31 12:00 |
16:25:41.38 |
-10:29:08.2 |
HIP 80477 |
24.10 |
| 2026-08-01 00:00 |
16:25:38.98 |
-10:30:01.1 |
HIP 80477 |
24.97 |
| 2026-08-01 12:00 |
16:25:36.80 |
-10:30:54.7 |
HIP 80477 |
25.87 |
| 2026-08-02 00:00 |
16:25:34.84 |
-10:31:49.0 |
HIP 80477 |
26.78 |
| 2026-08-02 12:00 |
16:25:33.11 |
-10:32:43.9 |
HIP 80477 |
27.71 |
| 2026-08-03 00:00 |
16:25:31.59 |
-10:33:39.6 |
HIP 80477 |
28.66 |
| 2026-08-03 12:00 |
16:25:30.28 |
-10:34:35.9 |
HIP 80477 |
29.62 |
| 2026-08-04 00:00 |
16:25:29.20 |
-10:35:32.9 |
HIP 80477 |
30.58 |
| 2026-08-04 12:00 |
16:25:28.34 |
-10:36:30.5 |
HIP 80477 |
31.56 |
| 2026-08-05 00:00 |
16:25:27.70 |
-10:37:28.8 |
HIP 80340 |
31.57 |
| 2026-08-05 12:00 |
16:25:27.27 |
-10:38:27.7 |
HIP 80340 |
30.77 |
| 2026-08-06 00:00 |
16:25:27.07 |
-10:39:27.3 |
HIP 80340 |
30.00 |
| 2026-08-06 12:00 |
16:25:27.09 |
-10:40:27.5 |
HIP 80340 |
29.27 |
| 2026-08-07 00:00 |
16:25:27.33 |
-10:41:28.4 |
HIP 80340 |
28.60 |
| 2026-08-07 12:00 |
16:25:27.78 |
-10:42:29.8 |
HIP 80340 |
27.97 |
| 2026-08-08 00:00 |
16:25:28.46 |
-10:43:31.9 |
HIP 80340 |
27.41 |
| 2026-08-08 12:00 |
16:25:29.36 |
-10:44:34.6 |
HIP 80340 |
26.91 |
| 2026-08-09 00:00 |
16:25:30.48 |
-10:45:37.8 |
HIP 80340 |
26.48 |
| 2026-08-09 12:00 |
16:25:31.81 |
-10:46:41.7 |
HIP 80340 |
26.13 |
| 2026-08-10 00:00 |
16:25:33.37 |
-10:47:46.2 |
HIP 80340 |
25.87 |
| 2026-08-10 12:00 |
16:25:35.15 |
-10:48:51.2 |
HIP 80340 |
25.69 |
| 2026-08-11 00:00 |
16:25:37.15 |
-10:49:56.8 |
HIP 80340 |
25.61 |
| 2026-08-11 12:00 |
16:25:39.37 |
-10:51:03.0 |
HIP 80340 |
25.63 |
| 2026-08-12 00:00 |
16:25:41.81 |
-10:52:09.7 |
HIP 80340 |
25.76 |
| 2026-08-12 12:00 |
16:25:44.47 |
-10:53:17.0 |
HIP 80340 |
26.00 |
| 2026-08-13 00:00 |
16:25:47.35 |
-10:54:24.9 |
HIP 80340 |
26.35 |
| 2026-08-13 12:00 |
16:25:50.45 |
-10:55:33.2 |
HIP 80340 |
26.81 |
| 2026-08-14 00:00 |
16:25:53.76 |
-10:56:42.1 |
HIP 80340 |
27.38 |
| 2026-08-14 12:00 |
16:25:57.30 |
-10:57:51.5 |
HIP 80340 |
28.06 |
| 2026-08-15 00:00 |
16:26:01.05 |
-10:59:01.4 |
HIP 80340 |
28.86 |
| 2026-08-15 12:00 |
16:26:05.02 |
-11:00:11.8 |
HIP 80524 |
29.17 |
| 2026-08-16 00:00 |
16:26:09.21 |
-11:01:22.7 |
HIP 80524 |
27.89 |
| 2026-08-16 12:00 |
16:26:13.62 |
-11:02:34.0 |
HIP 80524 |
26.63 |
| 2026-08-17 00:00 |
16:26:18.24 |
-11:03:45.9 |
HIP 80524 |
25.41 |
| 2026-08-17 12:00 |
16:26:23.08 |
-11:04:58.2 |
HIP 80524 |
24.23 |
| 2026-08-18 00:00 |
16:26:28.13 |
-11:06:11.0 |
HIP 80524 |
23.11 |
| 2026-08-18 12:00 |
16:26:33.40 |
-11:07:24.2 |
HIP 80524 |
22.07 |
| 2026-08-19 00:00 |
16:26:38.89 |
-11:08:37.9 |
HIP 80524 |
21.13 |