メタデータ
| 項目 |
値 |
| Designation |
C/2022 R6 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-08-25T21:58:24.202560Z |
| Orbit solution date (soln_date, UTC) |
2026-03-31T09:42:18Z |
| Obs used |
2119 |
| NEO |
- |
| M1 |
4.800 |
| K1 |
9.750 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2022-09-14T13:46:32.822400Z |
| Discovery magnitude (MPC) |
20.04 i |
| 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) |
2025-01-27.0000000 |
| e |
1.00496365 |
| q (au) |
6.565849 |
| a (au) |
-1322.786575 |
| i (deg) |
57.018830 |
| Ω (om, deg) |
150.786033 |
| ω (w, deg) |
319.890940 |
| M (ma, deg) |
-0.004321 |
等級
散乱 + 全体線形
$$
M_a = (4.674 + 5.001\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
4.674 |
| n |
5.001 |
| gf |
0.934 |
| gb |
-0.681 |
| k |
0.801 |
| δ90 |
8.011 |
| 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
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
08:29:51.75 |
-02:33:33.2 |
HIP 41707 |
12.71 |
| 2026-03-26 12:00 |
08:29:50.55 |
-02:29:53.4 |
HIP 41707 |
10.03 |
| 2026-03-27 00:00 |
08:29:49.50 |
-02:26:14.1 |
HIP 41707 |
8.12 |
| 2026-03-27 12:00 |
08:29:48.59 |
-02:22:35.4 |
HIP 41707 |
7.60 |
| 2026-03-28 00:00 |
08:29:47.82 |
-02:18:57.2 |
HIP 41707 |
8.70 |
| 2026-03-28 12:00 |
08:29:47.20 |
-02:15:19.6 |
HIP 41707 |
10.92 |
| 2026-03-29 00:00 |
08:29:46.72 |
-02:11:42.5 |
HIP 41707 |
13.73 |
| 2026-03-29 12:00 |
08:29:46.38 |
-02:08:06.1 |
HIP 41707 |
16.82 |
| 2026-03-30 00:00 |
08:29:46.19 |
-02:04:30.2 |
HIP 41661 |
19.88 |
| 2026-03-30 12:00 |
08:29:46.14 |
-02:00:54.9 |
HIP 41661 |
16.30 |
| 2026-03-31 00:00 |
08:29:46.23 |
-01:57:20.3 |
HIP 41661 |
12.75 |
| 2026-03-31 12:00 |
08:29:46.47 |
-01:53:46.2 |
HIP 41661 |
9.22 |
| 2026-04-01 00:00 |
08:29:46.85 |
-01:50:12.8 |
HIP 41661 |
5.77 |
| 2026-04-01 12:00 |
08:29:47.37 |
-01:46:40.1 |
HIP 41661 |
2.63 |
| 2026-04-02 00:00 |
08:29:48.04 |
-01:43:08.0 |
HIP 41661 |
2.43 |
| 2026-04-02 12:00 |
08:29:48.85 |
-01:39:36.6 |
HIP 41661 |
5.48 |
| 2026-04-03 00:00 |
08:29:49.80 |
-01:36:05.8 |
HIP 41661 |
8.88 |
| 2026-04-03 12:00 |
08:29:50.89 |
-01:32:35.8 |
HIP 41661 |
12.35 |
| 2026-04-04 00:00 |
08:29:52.13 |
-01:29:06.4 |
HIP 41661 |
15.83 |
| 2026-04-04 12:00 |
08:29:53.51 |
-01:25:37.7 |
HIP 41661 |
19.32 |
| 2026-04-05 00:00 |
08:29:55.04 |
-01:22:09.7 |
HIP 41661 |
22.80 |
| 2026-04-05 12:00 |
08:29:56.70 |
-01:18:42.5 |
HIP 41645 |
22.10 |
| 2026-04-06 00:00 |
08:29:58.51 |
-01:15:15.9 |
HIP 41645 |
19.00 |
| 2026-04-06 12:00 |
08:30:00.46 |
-01:11:50.1 |
HIP 41645 |
16.08 |
| 2026-04-07 00:00 |
08:30:02.56 |
-01:08:25.1 |
HIP 41645 |
13.46 |
| 2026-04-07 12:00 |
08:30:04.79 |
-01:05:00.8 |
HIP 41645 |
11.33 |
| 2026-04-08 00:00 |
08:30:07.17 |
-01:01:37.3 |
HIP 41645 |
10.00 |
| 2026-04-08 12:00 |
08:30:09.69 |
-00:58:14.5 |
HIP 41645 |
9.81 |
| 2026-04-09 00:00 |
08:30:12.35 |
-00:54:52.5 |
HIP 41645 |
10.80 |
| 2026-04-09 12:00 |
08:30:15.15 |
-00:51:31.3 |
HIP 41645 |
12.70 |
| 2026-04-10 00:00 |
08:30:18.09 |
-00:48:10.9 |
HIP 41645 |
15.17 |
| 2026-04-10 12:00 |
08:30:21.18 |
-00:44:51.2 |
HIP 41645 |
17.97 |
| 2026-04-11 00:00 |
08:30:24.41 |
-00:41:32.4 |
HIP 41645 |
20.96 |
| 2026-04-11 12:00 |
08:30:27.77 |
-00:38:14.4 |
HIP 41645 |
24.08 |
| 2026-04-12 00:00 |
08:30:31.28 |
-00:34:57.3 |
HIP 41622 |
26.85 |
| 2026-04-12 12:00 |
08:30:34.93 |
-00:31:40.9 |
HIP 41622 |
25.68 |
| 2026-04-13 00:00 |
08:30:38.72 |
-00:28:25.4 |
HIP 41827 |
23.12 |
| 2026-04-13 12:00 |
08:30:42.65 |
-00:25:10.7 |
HIP 41827 |
20.08 |
| 2026-04-14 00:00 |
08:30:46.71 |
-00:21:56.9 |
HIP 41827 |
17.15 |
| 2026-04-14 12:00 |
08:30:50.92 |
-00:18:44.0 |
HIP 41827 |
14.40 |
| 2026-04-15 00:00 |
08:30:55.27 |
-00:15:31.9 |
HIP 41827 |
11.95 |
| 2026-04-15 12:00 |
08:30:59.76 |
-00:12:20.6 |
HIP 41827 |
10.02 |
| 2026-04-16 00:00 |
08:31:04.38 |
-00:09:10.3 |
HIP 41827 |
8.96 |