メタデータ
| 項目 |
値 |
| Designation |
C/2024 V2 (Sarneczky) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2024-11-03T19:07:47.573760Z |
| Orbit solution date (soln_date, UTC) |
2024-12-26T20:12:37Z |
| Obs used |
58 |
| NEO |
- |
| M1 |
15.100 |
| K1 |
47.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-11-10T02:20:07.584000Z |
| Discovery magnitude (MPC) |
19.80 G |
| Discovery observatory (MPC) |
K88 · GINOP-KHK, Piszkéstető |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2024-11-16.0000000 |
| e |
0.96679404 |
| q (au) |
1.242723 |
| a (au) |
37.424696 |
| i (deg) |
95.966210 |
| Ω (om, deg) |
102.188455 |
| ω (w, deg) |
13.688779 |
| M (ma, deg) |
0.052533 |
等級
散乱 + 全体線形
$$
M_a = (17.641 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
17.641 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.895 |
| 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 |
19:17:25.44 |
+18:59:16.1 |
HIP 94751 |
8.74 |
| 2026-06-01 12:00 |
19:17:07.68 |
+18:59:27.1 |
HIP 94751 |
4.60 |
| 2026-06-02 00:00 |
19:16:49.81 |
+18:59:36.6 |
HIP 94751 |
1.06 |
| 2026-06-02 12:00 |
19:16:31.83 |
+18:59:44.5 |
HIP 94751 |
4.13 |
| 2026-06-03 00:00 |
19:16:13.74 |
+18:59:50.8 |
HIP 94751 |
8.33 |
| 2026-06-03 12:00 |
19:15:55.54 |
+18:59:55.5 |
HIP 94751 |
12.61 |
| 2026-06-04 00:00 |
19:15:37.24 |
+18:59:58.6 |
HIP 94751 |
16.92 |
| 2026-06-04 12:00 |
19:15:18.84 |
+19:00:00.1 |
HIP 94520 |
15.42 |
| 2026-06-05 00:00 |
19:15:00.34 |
+18:59:59.9 |
HIP 94520 |
11.24 |
| 2026-06-05 12:00 |
19:14:41.73 |
+18:59:58.0 |
HIP 94520 |
7.28 |
| 2026-06-06 00:00 |
19:14:23.03 |
+18:59:54.5 |
HIP 94520 |
4.31 |
| 2026-06-06 12:00 |
19:14:04.23 |
+18:59:49.4 |
HIP 94520 |
4.84 |
| 2026-06-07 00:00 |
19:13:45.34 |
+18:59:42.5 |
HIP 94520 |
8.27 |
| 2026-06-07 12:00 |
19:13:26.35 |
+18:59:34.0 |
HIP 94418 |
10.46 |
| 2026-06-08 00:00 |
19:13:07.27 |
+18:59:23.8 |
HIP 94418 |
9.02 |
| 2026-06-08 12:00 |
19:12:48.11 |
+18:59:12.0 |
HIP 94418 |
9.73 |
| 2026-06-09 00:00 |
19:12:28.85 |
+18:58:58.4 |
HIP 94396 |
10.92 |
| 2026-06-09 12:00 |
19:12:09.52 |
+18:58:43.1 |
HIP 94396 |
13.03 |
| 2026-06-10 00:00 |
19:11:50.09 |
+18:58:26.1 |
HIP 94396 |
16.20 |
| 2026-06-10 12:00 |
19:11:30.59 |
+18:58:07.3 |
HIP 94369 |
19.59 |
| 2026-06-11 00:00 |
19:11:11.01 |
+18:57:46.9 |
HIP 94369 |
23.19 |
| 2026-06-11 12:00 |
19:10:51.35 |
+18:57:24.7 |
HIP 94369 |
27.15 |
| 2026-06-12 00:00 |
19:10:31.61 |
+18:57:00.7 |
HIP 94057 |
30.73 |
| 2026-06-12 12:00 |
19:10:11.81 |
+18:56:35.1 |
HIP 94057 |
27.08 |
| 2026-06-13 00:00 |
19:09:51.93 |
+18:56:07.6 |
HIP 94057 |
23.77 |
| 2026-06-13 12:00 |
19:09:31.98 |
+18:55:38.4 |
HIP 94057 |
20.98 |
| 2026-06-14 00:00 |
19:09:11.97 |
+18:55:07.5 |
HIP 94057 |
18.94 |
| 2026-06-14 12:00 |
19:08:51.89 |
+18:54:34.7 |
HIP 94057 |
17.94 |
| 2026-06-15 00:00 |
19:08:31.75 |
+18:54:00.2 |
HIP 94057 |
18.17 |
| 2026-06-15 12:00 |
19:08:11.55 |
+18:53:24.0 |
HIP 94057 |
19.58 |
| 2026-06-16 00:00 |
19:07:51.29 |
+18:52:45.9 |
HIP 93928 |
19.49 |
| 2026-06-16 12:00 |
19:07:30.97 |
+18:52:06.1 |
HIP 93854 |
16.28 |
| 2026-06-17 00:00 |
19:07:10.61 |
+18:51:24.4 |
HIP 93854 |
13.45 |
| 2026-06-17 12:00 |
19:06:50.19 |
+18:50:41.0 |
HIP 93854 |
11.98 |
| 2026-06-18 00:00 |
19:06:29.73 |
+18:49:55.8 |
HIP 93854 |
12.38 |
| 2026-06-18 12:00 |
19:06:09.22 |
+18:49:08.9 |
HIP 93854 |
14.52 |
| 2026-06-19 00:00 |
19:05:48.66 |
+18:48:20.1 |
HIP 93765 |
16.38 |
| 2026-06-19 12:00 |
19:05:28.07 |
+18:47:29.5 |
HIP 93765 |
17.62 |
| 2026-06-20 00:00 |
19:05:07.43 |
+18:46:37.2 |
HIP 93765 |
20.07 |
| 2026-06-20 12:00 |
19:04:46.76 |
+18:45:43.1 |
HIP 93705 |
22.98 |
| 2026-06-21 00:00 |
19:04:26.05 |
+18:44:47.2 |
HIP 93705 |
24.68 |
| 2026-06-21 12:00 |
19:04:05.32 |
+18:43:49.5 |
HIP 93705 |
27.23 |
| 2026-06-22 00:00 |
19:03:44.55 |
+18:42:50.0 |
HIP 93705 |
30.43 |