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) |
| 2026-09-20 00:00 |
11:37:03.83 |
-68:55:50.6 |
HIP 56634 |
19.32 |
| 2026-09-20 12:00 |
11:37:07.13 |
-68:55:54.7 |
HIP 56634 |
19.28 |
| 2026-09-21 00:00 |
11:37:10.43 |
-68:55:58.9 |
HIP 56634 |
19.25 |
| 2026-09-21 12:00 |
11:37:13.73 |
-68:56:03.3 |
HIP 56634 |
19.22 |
| 2026-09-22 00:00 |
11:37:17.03 |
-68:56:07.9 |
HIP 56634 |
19.19 |
| 2026-09-22 12:00 |
11:37:20.32 |
-68:56:12.6 |
HIP 56634 |
19.17 |
| 2026-09-23 00:00 |
11:37:23.61 |
-68:56:17.4 |
HIP 56634 |
19.14 |
| 2026-09-23 12:00 |
11:37:26.90 |
-68:56:22.4 |
HIP 56634 |
19.12 |
| 2026-09-24 00:00 |
11:37:30.19 |
-68:56:27.5 |
HIP 56634 |
19.10 |
| 2026-09-24 12:00 |
11:37:33.47 |
-68:56:32.8 |
HIP 56634 |
19.09 |
| 2026-09-25 00:00 |
11:37:36.75 |
-68:56:38.2 |
HIP 56634 |
19.07 |
| 2026-09-25 12:00 |
11:37:40.02 |
-68:56:43.8 |
HIP 56634 |
19.06 |
| 2026-09-26 00:00 |
11:37:43.29 |
-68:56:49.5 |
HIP 56634 |
19.05 |
| 2026-09-26 12:00 |
11:37:46.56 |
-68:56:55.4 |
HIP 56634 |
19.05 |
| 2026-09-27 00:00 |
11:37:49.82 |
-68:57:01.4 |
HIP 56634 |
19.04 |
| 2026-09-27 12:00 |
11:37:53.08 |
-68:57:07.6 |
HIP 56634 |
19.04 |
| 2026-09-28 00:00 |
11:37:56.34 |
-68:57:13.9 |
HIP 56634 |
19.04 |
| 2026-09-28 12:00 |
11:37:59.58 |
-68:57:20.4 |
HIP 56634 |
19.05 |
| 2026-09-29 00:00 |
11:38:02.83 |
-68:57:27.0 |
HIP 56634 |
19.05 |
| 2026-09-29 12:00 |
11:38:06.07 |
-68:57:33.7 |
HIP 56634 |
19.06 |
| 2026-09-30 00:00 |
11:38:09.30 |
-68:57:40.6 |
HIP 56634 |
19.07 |
| 2026-09-30 12:00 |
11:38:12.53 |
-68:57:47.6 |
HIP 56634 |
19.09 |
| 2026-10-01 00:00 |
11:38:15.75 |
-68:57:54.8 |
HIP 56634 |
19.10 |
| 2026-10-01 12:00 |
11:38:18.97 |
-68:58:02.1 |
HIP 56956 |
19.05 |
| 2026-10-02 00:00 |
11:38:22.18 |
-68:58:09.6 |
HIP 56956 |
18.77 |
| 2026-10-02 12:00 |
11:38:25.38 |
-68:58:17.2 |
HIP 56956 |
18.50 |
| 2026-10-03 00:00 |
11:38:28.58 |
-68:58:24.9 |
HIP 56956 |
18.22 |
| 2026-10-03 12:00 |
11:38:31.76 |
-68:58:32.8 |
HIP 56956 |
17.94 |
| 2026-10-04 00:00 |
11:38:34.95 |
-68:58:40.8 |
HIP 56956 |
17.67 |
| 2026-10-04 12:00 |
11:38:38.12 |
-68:58:49.0 |
HIP 56956 |
17.39 |
| 2026-10-05 00:00 |
11:38:41.29 |
-68:58:57.3 |
HIP 56956 |
17.11 |
| 2026-10-05 12:00 |
11:38:44.45 |
-68:59:05.8 |
HIP 56956 |
16.84 |
| 2026-10-06 00:00 |
11:38:47.60 |
-68:59:14.4 |
HIP 56956 |
16.56 |
| 2026-10-06 12:00 |
11:38:50.74 |
-68:59:23.1 |
HIP 56956 |
16.28 |
| 2026-10-07 00:00 |
11:38:53.88 |
-68:59:32.0 |
HIP 56956 |
16.00 |
| 2026-10-07 12:00 |
11:38:57.00 |
-68:59:41.0 |
HIP 56956 |
15.72 |
| 2026-10-08 00:00 |
11:39:00.12 |
-68:59:50.1 |
HIP 56956 |
15.45 |
| 2026-10-08 12:00 |
11:39:03.23 |
-68:59:59.4 |
HIP 56956 |
15.17 |
| 2026-10-09 00:00 |
11:39:06.33 |
-69:00:08.8 |
HIP 56956 |
14.89 |
| 2026-10-09 12:00 |
11:39:09.42 |
-69:00:18.4 |
HIP 56956 |
14.61 |
| 2026-10-10 00:00 |
11:39:12.49 |
-69:00:28.1 |
HIP 56956 |
14.34 |
| 2026-10-10 12:00 |
11:39:15.56 |
-69:00:37.9 |
HIP 56956 |
14.06 |
| 2026-10-11 00:00 |
11:39:18.62 |
-69:00:47.8 |
HIP 56956 |
13.78 |