C/1988 C1 (Maury-Phinney)
メタデータ
| 項目 |
値 |
| Designation |
C/1988 C1 (Maury-Phinney) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1987-12-26T18:57:18.650880Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:36Z |
| Obs used |
17 |
| 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) |
1988-03-16.0000000 |
| e |
1.00000053 |
| q (au) |
1.930675 |
| a (au) |
-3647207.470365 |
| i (deg) |
93.158683 |
| Ω (om, deg) |
147.519927 |
| ω (w, deg) |
346.839485 |
| M (ma, deg) |
0.000000 |
等級
散乱 + 全体線形
$$
M_a = (13.701 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
13.701 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.571 |
| 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) |
| 2026-02-03 00:00 |
21:19:23.10 |
+19:09:28.4 |
HIP 105355 |
14.52 |
| 2026-02-03 12:00 |
21:19:25.05 |
+19:09:33.6 |
HIP 105355 |
14.06 |
| 2026-02-04 00:00 |
21:19:27.00 |
+19:09:39.0 |
HIP 105355 |
13.59 |
| 2026-02-04 12:00 |
21:19:28.95 |
+19:09:44.5 |
HIP 105355 |
13.12 |
| 2026-02-05 00:00 |
21:19:30.90 |
+19:09:50.2 |
HIP 105355 |
12.65 |
| 2026-02-05 12:00 |
21:19:32.85 |
+19:09:56.1 |
HIP 105355 |
12.18 |
| 2026-02-06 00:00 |
21:19:34.81 |
+19:10:02.0 |
HIP 105355 |
11.71 |
| 2026-02-06 12:00 |
21:19:36.76 |
+19:10:08.1 |
HIP 105355 |
11.24 |
| 2026-02-07 00:00 |
21:19:38.71 |
+19:10:14.4 |
HIP 105355 |
10.77 |
| 2026-02-07 12:00 |
21:19:40.66 |
+19:10:20.8 |
HIP 105355 |
10.30 |
| 2026-02-08 00:00 |
21:19:42.61 |
+19:10:27.3 |
HIP 105355 |
9.82 |
| 2026-02-08 12:00 |
21:19:44.56 |
+19:10:34.0 |
HIP 105355 |
9.35 |
| 2026-02-09 00:00 |
21:19:46.51 |
+19:10:40.8 |
HIP 105355 |
8.88 |
| 2026-02-09 12:00 |
21:19:48.46 |
+19:10:47.7 |
HIP 105355 |
8.40 |
| 2026-02-10 00:00 |
21:19:50.41 |
+19:10:54.8 |
HIP 105355 |
7.93 |
| 2026-02-10 12:00 |
21:19:52.36 |
+19:11:02.0 |
HIP 105355 |
7.45 |
| 2026-02-11 00:00 |
21:19:54.30 |
+19:11:09.4 |
HIP 105355 |
6.98 |
| 2026-02-11 12:00 |
21:19:56.25 |
+19:11:16.9 |
HIP 105355 |
6.50 |
| 2026-02-12 00:00 |
21:19:58.19 |
+19:11:24.5 |
HIP 105355 |
6.03 |
| 2026-02-12 12:00 |
21:20:00.13 |
+19:11:32.3 |
HIP 105355 |
5.55 |
| 2026-02-13 00:00 |
21:20:02.07 |
+19:11:40.2 |
HIP 105355 |
5.07 |
| 2026-02-13 12:00 |
21:20:04.01 |
+19:11:48.2 |
HIP 105355 |
4.60 |
| 2026-02-14 00:00 |
21:20:05.94 |
+19:11:56.4 |
HIP 105355 |
4.12 |
| 2026-02-14 12:00 |
21:20:07.88 |
+19:12:04.7 |
HIP 105355 |
3.64 |
| 2026-02-15 00:00 |
21:20:09.81 |
+19:12:13.1 |
HIP 105355 |
3.17 |
| 2026-02-15 12:00 |
21:20:11.74 |
+19:12:21.7 |
HIP 105355 |
2.69 |
| 2026-02-16 00:00 |
21:20:13.66 |
+19:12:30.4 |
HIP 105355 |
2.21 |
| 2026-02-16 12:00 |
21:20:15.59 |
+19:12:39.2 |
HIP 105355 |
1.74 |
| 2026-02-17 00:00 |
21:20:17.51 |
+19:12:48.2 |
HIP 105355 |
1.26 |
| 2026-02-17 12:00 |
21:20:19.43 |
+19:12:57.3 |
HIP 105355 |
0.78 |
| 2026-02-18 00:00 |
21:20:21.34 |
+19:13:06.5 |
HIP 105355 |
0.31 |
| 2026-02-18 12:00 |
21:20:23.25 |
+19:13:15.8 |
HIP 105355 |
0.18 |
| 2026-02-19 00:00 |
21:20:25.16 |
+19:13:25.2 |
HIP 105355 |
0.65 |
| 2026-02-19 12:00 |
21:20:27.06 |
+19:13:34.8 |
HIP 105355 |
1.13 |
| 2026-02-20 00:00 |
21:20:28.96 |
+19:13:44.5 |
HIP 105355 |
1.60 |
| 2026-02-20 12:00 |
21:20:30.86 |
+19:13:54.4 |
HIP 105355 |
2.08 |
| 2026-02-21 00:00 |
21:20:32.75 |
+19:14:04.3 |
HIP 105355 |
2.56 |
| 2026-02-21 12:00 |
21:20:34.64 |
+19:14:14.4 |
HIP 105355 |
3.03 |
| 2026-02-22 00:00 |
21:20:36.52 |
+19:14:24.6 |
HIP 105355 |
3.51 |
| 2026-02-22 12:00 |
21:20:38.40 |
+19:14:34.9 |
HIP 105355 |
3.98 |
| 2026-02-23 00:00 |
21:20:40.27 |
+19:14:45.3 |
HIP 105355 |
4.46 |
| 2026-02-23 12:00 |
21:20:42.14 |
+19:14:55.9 |
HIP 105355 |
4.93 |
| 2026-02-24 00:00 |
21:20:44.01 |
+19:15:06.5 |
HIP 105355 |
5.41 |