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) |
| 2026-03-26 00:00 |
11:35:10.90 |
-70:03:42.4 |
HIP 56552 |
9.14 |
| 2026-03-26 12:00 |
11:35:07.48 |
-70:03:36.9 |
HIP 56552 |
9.31 |
| 2026-03-27 00:00 |
11:35:04.06 |
-70:03:31.2 |
HIP 56552 |
9.50 |
| 2026-03-27 12:00 |
11:35:00.65 |
-70:03:25.3 |
HIP 56552 |
9.70 |
| 2026-03-28 00:00 |
11:34:57.25 |
-70:03:19.3 |
HIP 56552 |
9.90 |
| 2026-03-28 12:00 |
11:34:53.86 |
-70:03:13.1 |
HIP 56552 |
10.11 |
| 2026-03-29 00:00 |
11:34:50.48 |
-70:03:06.8 |
HIP 56552 |
10.33 |
| 2026-03-29 12:00 |
11:34:47.10 |
-70:03:00.3 |
HIP 56552 |
10.55 |
| 2026-03-30 00:00 |
11:34:43.73 |
-70:02:53.7 |
HIP 56552 |
10.78 |
| 2026-03-30 12:00 |
11:34:40.37 |
-70:02:46.9 |
HIP 56379 |
10.95 |
| 2026-03-31 00:00 |
11:34:37.02 |
-70:02:39.9 |
HIP 56379 |
10.88 |
| 2026-03-31 12:00 |
11:34:33.68 |
-70:02:32.9 |
HIP 56379 |
10.82 |
| 2026-04-01 00:00 |
11:34:30.35 |
-70:02:25.6 |
HIP 56379 |
10.78 |
| 2026-04-01 12:00 |
11:34:27.03 |
-70:02:18.2 |
HIP 56379 |
10.74 |
| 2026-04-02 00:00 |
11:34:23.72 |
-70:02:10.7 |
HIP 56379 |
10.72 |
| 2026-04-02 12:00 |
11:34:20.42 |
-70:02:03.0 |
HIP 56379 |
10.71 |
| 2026-04-03 00:00 |
11:34:17.13 |
-70:01:55.1 |
HIP 56379 |
10.71 |
| 2026-04-03 12:00 |
11:34:13.85 |
-70:01:47.1 |
HIP 56379 |
10.72 |
| 2026-04-04 00:00 |
11:34:10.58 |
-70:01:39.0 |
HIP 56379 |
10.74 |
| 2026-04-04 12:00 |
11:34:07.33 |
-70:01:30.7 |
HIP 56379 |
10.78 |
| 2026-04-05 00:00 |
11:34:04.08 |
-70:01:22.3 |
HIP 56379 |
10.83 |
| 2026-04-05 12:00 |
11:34:00.85 |
-70:01:13.7 |
HIP 56379 |
10.88 |
| 2026-04-06 00:00 |
11:33:57.63 |
-70:01:05.0 |
HIP 56379 |
10.95 |
| 2026-04-06 12:00 |
11:33:54.42 |
-70:00:56.1 |
HIP 56379 |
11.03 |
| 2026-04-07 00:00 |
11:33:51.22 |
-70:00:47.1 |
HIP 56379 |
11.12 |
| 2026-04-07 12:00 |
11:33:48.04 |
-70:00:37.9 |
HIP 56379 |
11.22 |
| 2026-04-08 00:00 |
11:33:44.87 |
-70:00:28.7 |
HIP 56379 |
11.33 |
| 2026-04-08 12:00 |
11:33:41.71 |
-70:00:19.2 |
HIP 56379 |
11.45 |
| 2026-04-09 00:00 |
11:33:38.57 |
-70:00:09.6 |
HIP 56379 |
11.58 |
| 2026-04-09 12:00 |
11:33:35.44 |
-70:00:00.0 |
HIP 56379 |
11.72 |
| 2026-04-10 00:00 |
11:33:32.32 |
-69:59:50.1 |
HIP 56379 |
11.87 |
| 2026-04-10 12:00 |
11:33:29.22 |
-69:59:40.1 |
HIP 56379 |
12.02 |
| 2026-04-11 00:00 |
11:33:26.13 |
-69:59:30.0 |
HIP 56379 |
12.19 |
| 2026-04-11 12:00 |
11:33:23.06 |
-69:59:19.7 |
HIP 56379 |
12.36 |
| 2026-04-12 00:00 |
11:33:20.00 |
-69:59:09.3 |
HIP 56379 |
12.54 |
| 2026-04-12 12:00 |
11:33:16.96 |
-69:58:58.8 |
HIP 56379 |
12.73 |
| 2026-04-13 00:00 |
11:33:13.94 |
-69:58:48.1 |
HIP 56379 |
12.92 |
| 2026-04-13 12:00 |
11:33:10.92 |
-69:58:37.3 |
HIP 56379 |
13.12 |
| 2026-04-14 00:00 |
11:33:07.93 |
-69:58:26.3 |
HIP 56379 |
13.33 |
| 2026-04-14 12:00 |
11:33:04.95 |
-69:58:15.3 |
HIP 56379 |
13.55 |
| 2026-04-15 00:00 |
11:33:01.99 |
-69:58:04.1 |
HIP 56379 |
13.77 |
| 2026-04-15 12:00 |
11:32:59.04 |
-69:57:52.8 |
HIP 56379 |
13.99 |
| 2026-04-16 00:00 |
11:32:56.12 |
-69:57:41.3 |
HIP 56379 |
14.22 |