メタデータ
| 項目 |
値 |
| Designation |
C/1958 R1 (Burnham-Slaughter) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1959-03-11T12:29:09.669120Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:14Z |
| Obs used |
40 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
1959-04-21.0000000 |
| e |
0.99984492 |
| q (au) |
1.628202 |
| a (au) |
10499.160647 |
| i (deg) |
61.257360 |
| Ω (om, deg) |
323.778245 |
| ω (w, deg) |
100.736624 |
| M (ma, deg) |
0.000037 |
等級
散乱 + 全体線形
$$
M_a = (5.937 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
5.937 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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) |
| 2026-07-29 00:00 |
11:31:47.39 |
-69:02:42.6 |
HIP 56634 |
28.91 |
| 2026-07-29 12:00 |
11:31:49.70 |
-69:02:31.5 |
HIP 56634 |
28.80 |
| 2026-07-30 00:00 |
11:31:52.02 |
-69:02:20.4 |
HIP 56634 |
28.70 |
| 2026-07-30 12:00 |
11:31:54.37 |
-69:02:09.5 |
HIP 56634 |
28.60 |
| 2026-07-31 00:00 |
11:31:56.73 |
-69:01:58.7 |
HIP 56634 |
28.49 |
| 2026-07-31 12:00 |
11:31:59.11 |
-69:01:48.0 |
HIP 56634 |
28.39 |
| 2026-08-01 00:00 |
11:32:01.52 |
-69:01:37.4 |
HIP 56634 |
28.28 |
| 2026-08-01 12:00 |
11:32:03.93 |
-69:01:27.0 |
HIP 56634 |
28.18 |
| 2026-08-02 00:00 |
11:32:06.37 |
-69:01:16.7 |
HIP 56634 |
28.08 |
| 2026-08-02 12:00 |
11:32:08.83 |
-69:01:06.5 |
HIP 56634 |
27.97 |
| 2026-08-03 00:00 |
11:32:11.30 |
-69:00:56.4 |
HIP 56634 |
27.87 |
| 2026-08-03 12:00 |
11:32:13.79 |
-69:00:46.5 |
HIP 56634 |
27.76 |
| 2026-08-04 00:00 |
11:32:16.30 |
-69:00:36.7 |
HIP 56634 |
27.66 |
| 2026-08-04 12:00 |
11:32:18.83 |
-69:00:27.0 |
HIP 56462 |
27.45 |
| 2026-08-05 00:00 |
11:32:21.37 |
-69:00:17.5 |
HIP 56462 |
27.21 |
| 2026-08-05 12:00 |
11:32:23.93 |
-69:00:08.0 |
HIP 56462 |
26.97 |
| 2026-08-06 00:00 |
11:32:26.51 |
-68:59:58.7 |
HIP 56462 |
26.72 |
| 2026-08-06 12:00 |
11:32:29.10 |
-68:59:49.6 |
HIP 56462 |
26.49 |
| 2026-08-07 00:00 |
11:32:31.71 |
-68:59:40.5 |
HIP 56462 |
26.25 |
| 2026-08-07 12:00 |
11:32:34.34 |
-68:59:31.6 |
HIP 56462 |
26.01 |
| 2026-08-08 00:00 |
11:32:36.98 |
-68:59:22.9 |
HIP 56462 |
25.78 |
| 2026-08-08 12:00 |
11:32:39.64 |
-68:59:14.2 |
HIP 56462 |
25.55 |
| 2026-08-09 00:00 |
11:32:42.32 |
-68:59:05.7 |
HIP 56462 |
25.32 |
| 2026-08-09 12:00 |
11:32:45.01 |
-68:58:57.3 |
HIP 56462 |
25.10 |
| 2026-08-10 00:00 |
11:32:47.71 |
-68:58:49.1 |
HIP 56462 |
24.87 |
| 2026-08-10 12:00 |
11:32:50.44 |
-68:58:41.0 |
HIP 56462 |
24.65 |
| 2026-08-11 00:00 |
11:32:53.17 |
-68:58:33.0 |
HIP 56462 |
24.43 |
| 2026-08-11 12:00 |
11:32:55.93 |
-68:58:25.2 |
HIP 56462 |
24.22 |
| 2026-08-12 00:00 |
11:32:58.69 |
-68:58:17.5 |
HIP 56462 |
24.01 |
| 2026-08-12 12:00 |
11:33:01.47 |
-68:58:10.0 |
HIP 56462 |
23.80 |
| 2026-08-13 00:00 |
11:33:04.27 |
-68:58:02.6 |
HIP 56462 |
23.59 |
| 2026-08-13 12:00 |
11:33:07.08 |
-68:57:55.3 |
HIP 56462 |
23.39 |
| 2026-08-14 00:00 |
11:33:09.91 |
-68:57:48.2 |
HIP 56462 |
23.19 |
| 2026-08-14 12:00 |
11:33:12.75 |
-68:57:41.2 |
HIP 56462 |
23.00 |
| 2026-08-15 00:00 |
11:33:15.60 |
-68:57:34.3 |
HIP 56462 |
22.81 |
| 2026-08-15 12:00 |
11:33:18.46 |
-68:57:27.6 |
HIP 56462 |
22.62 |
| 2026-08-16 00:00 |
11:33:21.34 |
-68:57:21.1 |
HIP 56462 |
22.44 |
| 2026-08-16 12:00 |
11:33:24.23 |
-68:57:14.7 |
HIP 56462 |
22.26 |
| 2026-08-17 00:00 |
11:33:27.14 |
-68:57:08.4 |
HIP 56462 |
22.08 |
| 2026-08-17 12:00 |
11:33:30.06 |
-68:57:02.2 |
HIP 56462 |
21.91 |
| 2026-08-18 00:00 |
11:33:32.99 |
-68:56:56.3 |
HIP 56462 |
21.74 |
| 2026-08-18 12:00 |
11:33:35.93 |
-68:56:50.4 |
HIP 56462 |
21.58 |
| 2026-08-19 00:00 |
11:33:38.88 |
-68:56:44.7 |
HIP 56462 |
21.42 |