メタデータ
| 項目 |
値 |
| Designation |
C/2024 N1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-10-18T19:01:49.609920Z |
| Orbit solution date (soln_date, UTC) |
2026-03-07T14:43:04Z |
| Obs used |
57 |
| NEO |
- |
| M1 |
4.500 |
| K1 |
18.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-07-01T11:04:26.169600Z |
| Discovery magnitude (MPC) |
21.86 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2025-03-05.0000000 |
| e |
1.00144093 |
| q (au) |
4.398543 |
| a (au) |
-3052.575831 |
| i (deg) |
88.779969 |
| Ω (om, deg) |
323.018819 |
| ω (w, deg) |
91.242965 |
| M (ma, deg) |
-0.001331 |
等級
散乱 + 全体線形
$$
M_a = (5.761 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
5.761 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| 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) |
| 2026-06-01 00:00 |
10:18:43.05 |
+68:02:59.6 |
HIP 50618 |
10.59 |
| 2026-06-01 12:00 |
10:18:40.05 |
+67:54:33.5 |
HIP 50618 |
16.56 |
| 2026-06-02 00:00 |
10:18:37.57 |
+67:46:08.4 |
HIP 50618 |
24.03 |
| 2026-06-02 12:00 |
10:18:35.59 |
+67:37:44.2 |
HIP 50618 |
31.94 |
| 2026-06-03 00:00 |
10:18:34.10 |
+67:29:21.1 |
HIP 49992 |
39.81 |
| 2026-06-03 12:00 |
10:18:33.09 |
+67:20:59.0 |
HIP 49992 |
37.04 |
| 2026-06-04 00:00 |
10:18:32.55 |
+67:12:37.9 |
HIP 49992 |
36.10 |
| 2026-06-04 12:00 |
10:18:32.46 |
+67:04:17.8 |
HIP 49992 |
37.10 |
| 2026-06-05 00:00 |
10:18:32.83 |
+66:55:58.8 |
HIP 50169 |
39.62 |
| 2026-06-05 12:00 |
10:18:33.64 |
+66:47:40.9 |
HIP 50169 |
33.59 |
| 2026-06-06 00:00 |
10:18:34.88 |
+66:39:24.1 |
HIP 50169 |
28.76 |
| 2026-06-06 12:00 |
10:18:36.54 |
+66:31:08.3 |
HIP 50169 |
25.79 |
| 2026-06-07 00:00 |
10:18:38.61 |
+66:22:53.7 |
HIP 50169 |
25.34 |
| 2026-06-07 12:00 |
10:18:41.08 |
+66:14:40.1 |
HIP 50169 |
27.51 |
| 2026-06-08 00:00 |
10:18:43.95 |
+66:06:27.7 |
HIP 50152 |
27.45 |
| 2026-06-08 12:00 |
10:18:47.20 |
+65:58:16.5 |
HIP 50152 |
27.61 |
| 2026-06-09 00:00 |
10:18:50.84 |
+65:50:06.4 |
HIP 50152 |
30.11 |
| 2026-06-09 12:00 |
10:18:54.84 |
+65:41:57.4 |
HIP 50933 |
33.25 |
| 2026-06-10 00:00 |
10:18:59.21 |
+65:33:49.6 |
HIP 50448 |
27.96 |
| 2026-06-10 12:00 |
10:19:03.93 |
+65:25:43.0 |
HIP 50448 |
20.27 |
| 2026-06-11 00:00 |
10:19:08.99 |
+65:17:37.6 |
HIP 50448 |
13.15 |
| 2026-06-11 12:00 |
10:19:14.40 |
+65:09:33.3 |
HIP 50448 |
8.19 |
| 2026-06-12 00:00 |
10:19:20.15 |
+65:01:30.3 |
HIP 50448 |
9.62 |
| 2026-06-12 12:00 |
10:19:26.21 |
+64:53:28.5 |
HIP 50448 |
15.77 |
| 2026-06-13 00:00 |
10:19:32.60 |
+64:45:27.9 |
HIP 50448 |
23.12 |
| 2026-06-13 12:00 |
10:19:39.30 |
+64:37:28.6 |
HIP 50841 |
28.67 |
| 2026-06-14 00:00 |
10:19:46.31 |
+64:29:30.5 |
HIP 50214 |
33.23 |
| 2026-06-14 12:00 |
10:19:53.62 |
+64:21:33.7 |
HIP 50762 |
33.06 |
| 2026-06-15 00:00 |
10:20:01.22 |
+64:13:38.1 |
HIP 50762 |
25.63 |
| 2026-06-15 12:00 |
10:20:09.11 |
+64:05:43.8 |
HIP 50762 |
18.62 |
| 2026-06-16 00:00 |
10:20:17.29 |
+63:57:50.8 |
HIP 50762 |
12.76 |
| 2026-06-16 12:00 |
10:20:25.73 |
+63:49:59.1 |
HIP 50680 |
7.38 |
| 2026-06-17 00:00 |
10:20:34.45 |
+63:42:08.7 |
HIP 50680 |
2.81 |
| 2026-06-17 12:00 |
10:20:43.43 |
+63:34:19.6 |
HIP 50680 |
9.25 |
| 2026-06-18 00:00 |
10:20:52.67 |
+63:26:31.8 |
HIP 50680 |
16.93 |
| 2026-06-18 12:00 |
10:21:02.16 |
+63:18:45.4 |
HIP 50680 |
24.71 |
| 2026-06-19 00:00 |
10:21:11.90 |
+63:11:00.2 |
HIP 50680 |
32.50 |
| 2026-06-19 12:00 |
10:21:21.88 |
+63:03:16.4 |
HIP 50680 |
40.28 |
| 2026-06-20 00:00 |
10:21:32.09 |
+62:55:34.0 |
HIP 51268 |
46.46 |
| 2026-06-20 12:00 |
10:21:42.54 |
+62:47:52.9 |
HIP 51110 |
42.91 |
| 2026-06-21 00:00 |
10:21:53.21 |
+62:40:13.1 |
HIP 51110 |
37.54 |
| 2026-06-21 12:00 |
10:22:04.10 |
+62:32:34.8 |
HIP 51110 |
33.10 |
| 2026-06-22 00:00 |
10:22:15.21 |
+62:24:57.7 |
HIP 51110 |
30.00 |