メタデータ
| 項目 |
値 |
| Designation |
C/1959 Y1 (Burnham) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1960-03-20T23:55:16.296960Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:14Z |
| Obs used |
35 |
| 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) |
1960-04-04.0000000 |
| e |
1.00029776 |
| q (au) |
0.504411 |
| a (au) |
-1694.000993 |
| i (deg) |
159.600859 |
| Ω (om, deg) |
252.642575 |
| ω (w, deg) |
306.631855 |
| M (ma, deg) |
0.000198 |
等級
散乱 + 全体線形
$$
M_a = (7.979 + 3.474\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
7.979 |
| n |
3.474 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
1.000 |
| δ90 |
1.000 |
| 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
残差 (区間線形)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 開始日 (UTC) |
終了日 (UTC) |
a |
b |
| 1960-01-04 |
1960-02-17 |
-2.6200 |
+2.620 |
| 1960-03-21 |
1960-05-02 |
+1.1323 |
-0.041 |
| 1960-05-02 |
1960-06-17 |
+22.1412 |
-1.633 |
log10 r = log10(太陽距離/AU)、Δ = 地球距離(AU)
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
09:23:51.41 |
+34:02:36.7 |
HIP 46022 |
11.96 |
| 2026-06-01 12:00 |
09:23:51.93 |
+34:02:29.0 |
HIP 46022 |
11.95 |
| 2026-06-02 00:00 |
09:23:52.45 |
+34:02:21.3 |
HIP 46022 |
11.94 |
| 2026-06-02 12:00 |
09:23:52.99 |
+34:02:13.6 |
HIP 46022 |
11.94 |
| 2026-06-03 00:00 |
09:23:53.53 |
+34:02:05.9 |
HIP 46022 |
11.94 |
| 2026-06-03 12:00 |
09:23:54.09 |
+34:01:58.2 |
HIP 46022 |
11.95 |
| 2026-06-04 00:00 |
09:23:54.66 |
+34:01:50.4 |
HIP 46022 |
11.95 |
| 2026-06-04 12:00 |
09:23:55.24 |
+34:01:42.6 |
HIP 46022 |
11.97 |
| 2026-06-05 00:00 |
09:23:55.83 |
+34:01:34.8 |
HIP 46022 |
11.99 |
| 2026-06-05 12:00 |
09:23:56.43 |
+34:01:27.0 |
HIP 46022 |
12.01 |
| 2026-06-06 00:00 |
09:23:57.04 |
+34:01:19.1 |
HIP 46022 |
12.03 |
| 2026-06-06 12:00 |
09:23:57.67 |
+34:01:11.3 |
HIP 46022 |
12.07 |
| 2026-06-07 00:00 |
09:23:58.30 |
+34:01:03.4 |
HIP 46022 |
12.10 |
| 2026-06-07 12:00 |
09:23:58.95 |
+34:00:55.5 |
HIP 46022 |
12.14 |
| 2026-06-08 00:00 |
09:23:59.60 |
+34:00:47.6 |
HIP 46022 |
12.18 |
| 2026-06-08 12:00 |
09:24:00.27 |
+34:00:39.7 |
HIP 46022 |
12.23 |
| 2026-06-09 00:00 |
09:24:00.94 |
+34:00:31.7 |
HIP 46022 |
12.29 |
| 2026-06-09 12:00 |
09:24:01.63 |
+34:00:23.8 |
HIP 46022 |
12.34 |
| 2026-06-10 00:00 |
09:24:02.33 |
+34:00:15.8 |
HIP 46022 |
12.41 |
| 2026-06-10 12:00 |
09:24:03.04 |
+34:00:07.8 |
HIP 46022 |
12.47 |
| 2026-06-11 00:00 |
09:24:03.76 |
+33:59:59.8 |
HIP 46022 |
12.54 |
| 2026-06-11 12:00 |
09:24:04.49 |
+33:59:51.8 |
HIP 46022 |
12.62 |
| 2026-06-12 00:00 |
09:24:05.23 |
+33:59:43.8 |
HIP 46022 |
12.70 |
| 2026-06-12 12:00 |
09:24:05.98 |
+33:59:35.7 |
HIP 46022 |
12.79 |
| 2026-06-13 00:00 |
09:24:06.74 |
+33:59:27.7 |
HIP 46022 |
12.88 |
| 2026-06-13 12:00 |
09:24:07.51 |
+33:59:19.6 |
HIP 46022 |
12.97 |
| 2026-06-14 00:00 |
09:24:08.29 |
+33:59:11.5 |
HIP 46022 |
13.07 |
| 2026-06-14 12:00 |
09:24:09.08 |
+33:59:03.5 |
HIP 46022 |
13.17 |
| 2026-06-15 00:00 |
09:24:09.88 |
+33:58:55.4 |
HIP 46022 |
13.28 |
| 2026-06-15 12:00 |
09:24:10.69 |
+33:58:47.3 |
HIP 46022 |
13.39 |
| 2026-06-16 00:00 |
09:24:11.51 |
+33:58:39.2 |
HIP 46022 |
13.51 |
| 2026-06-16 12:00 |
09:24:12.34 |
+33:58:31.1 |
HIP 46022 |
13.63 |
| 2026-06-17 00:00 |
09:24:13.17 |
+33:58:22.9 |
HIP 46022 |
13.76 |
| 2026-06-17 12:00 |
09:24:14.02 |
+33:58:14.8 |
HIP 46022 |
13.89 |
| 2026-06-18 00:00 |
09:24:14.88 |
+33:58:06.7 |
HIP 46022 |
14.02 |
| 2026-06-18 12:00 |
09:24:15.75 |
+33:57:58.6 |
HIP 46022 |
14.16 |
| 2026-06-19 00:00 |
09:24:16.63 |
+33:57:50.4 |
HIP 46022 |
14.30 |
| 2026-06-19 12:00 |
09:24:17.51 |
+33:57:42.3 |
HIP 46022 |
14.45 |
| 2026-06-20 00:00 |
09:24:18.41 |
+33:57:34.1 |
HIP 46022 |
14.60 |
| 2026-06-20 12:00 |
09:24:19.31 |
+33:57:26.0 |
HIP 46022 |
14.75 |
| 2026-06-21 00:00 |
09:24:20.23 |
+33:57:17.8 |
HIP 46022 |
14.91 |
| 2026-06-21 12:00 |
09:24:21.15 |
+33:57:09.7 |
HIP 46022 |
15.07 |
| 2026-06-22 00:00 |
09:24:22.08 |
+33:57:01.6 |
HIP 46022 |
15.24 |