メタデータ
| 項目 |
値 |
| Designation |
C/2022 R6 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-08-26T01:06:57.168000Z |
| Orbit solution date (soln_date, UTC) |
2026-06-18T16:12:20Z |
| Obs used |
2462 |
| NEO |
- |
| M1 |
5.300 |
| K1 |
9.250 |
| 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) |
2025-03-30.0000000 |
| e |
1.00498200 |
| q (au) |
6.565682 |
| a (au) |
-1317.880270 |
| i (deg) |
57.018633 |
| Ω (om, deg) |
150.786388 |
| ω (w, deg) |
319.901877 |
| M (ma, deg) |
-0.003071 |
等級
散乱 + 全体線形
$$
M_a = (2.993 + 4.602\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
2.993 |
| n |
4.602 |
| gf |
0.945 |
| gb |
-0.500 |
| k |
0.974 |
| δ90 |
1.001 |
| 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) |
| 2026-07-29 00:00 |
09:22:00.61 |
+05:14:59.0 |
HIP 45882 |
18.26 |
| 2026-07-29 12:00 |
09:22:20.66 |
+05:15:12.7 |
HIP 45942 |
19.76 |
| 2026-07-30 00:00 |
09:22:40.72 |
+05:15:25.8 |
HIP 46068 |
14.99 |
| 2026-07-30 12:00 |
09:23:00.79 |
+05:15:38.5 |
HIP 46068 |
10.13 |
| 2026-07-31 00:00 |
09:23:20.86 |
+05:15:50.7 |
HIP 46068 |
5.52 |
| 2026-07-31 12:00 |
09:23:40.95 |
+05:16:02.4 |
HIP 46068 |
2.87 |
| 2026-08-01 00:00 |
09:24:01.04 |
+05:16:13.6 |
HIP 46068 |
6.01 |
| 2026-08-01 12:00 |
09:24:21.13 |
+05:16:24.4 |
HIP 46068 |
10.68 |
| 2026-08-02 00:00 |
09:24:41.23 |
+05:16:34.7 |
HIP 46196 |
13.46 |
| 2026-08-02 12:00 |
09:25:01.34 |
+05:16:44.6 |
HIP 46196 |
11.55 |
| 2026-08-03 00:00 |
09:25:21.45 |
+05:16:54.0 |
HIP 46196 |
11.67 |
| 2026-08-03 12:00 |
09:25:41.57 |
+05:17:03.0 |
HIP 46196 |
13.76 |
| 2026-08-04 00:00 |
09:26:01.69 |
+05:17:11.5 |
HIP 46196 |
17.11 |
| 2026-08-04 12:00 |
09:26:21.81 |
+05:17:19.6 |
HIP 46196 |
21.13 |
| 2026-08-05 00:00 |
09:26:41.94 |
+05:17:27.2 |
HIP 46196 |
25.51 |
| 2026-08-05 12:00 |
09:27:02.07 |
+05:17:34.4 |
HIP 46196 |
30.09 |
| 2026-08-06 00:00 |
09:27:22.20 |
+05:17:41.2 |
HIP 46196 |
34.79 |
| 2026-08-06 12:00 |
09:27:42.33 |
+05:17:47.5 |
HIP 46542 |
30.92 |
| 2026-08-07 00:00 |
09:28:02.46 |
+05:17:53.5 |
HIP 46542 |
26.67 |
| 2026-08-07 12:00 |
09:28:22.60 |
+05:17:59.0 |
HIP 46542 |
22.73 |
| 2026-08-08 00:00 |
09:28:42.73 |
+05:18:04.1 |
HIP 46542 |
19.28 |
| 2026-08-08 12:00 |
09:29:02.86 |
+05:18:08.8 |
HIP 46542 |
16.65 |
| 2026-08-09 00:00 |
09:29:22.99 |
+05:18:13.2 |
HIP 46542 |
15.26 |
| 2026-08-09 12:00 |
09:29:43.12 |
+05:18:17.1 |
HIP 46542 |
15.44 |
| 2026-08-10 00:00 |
09:30:03.25 |
+05:18:20.6 |
HIP 46542 |
17.15 |
| 2026-08-10 12:00 |
09:30:23.37 |
+05:18:23.8 |
HIP 46542 |
19.99 |
| 2026-08-11 00:00 |
09:30:43.49 |
+05:18:26.5 |
HIP 46542 |
23.56 |
| 2026-08-11 12:00 |
09:31:03.61 |
+05:18:28.9 |
HIP 46580 |
26.90 |
| 2026-08-12 00:00 |
09:31:23.72 |
+05:18:31.0 |
HIP 46846 |
22.97 |
| 2026-08-12 12:00 |
09:31:43.83 |
+05:18:32.6 |
HIP 46846 |
18.77 |
| 2026-08-13 00:00 |
09:32:03.93 |
+05:18:34.0 |
HIP 46846 |
15.06 |
| 2026-08-13 12:00 |
09:32:24.02 |
+05:18:34.9 |
HIP 46846 |
12.30 |
| 2026-08-14 00:00 |
09:32:44.10 |
+05:18:35.5 |
HIP 46846 |
11.22 |
| 2026-08-14 12:00 |
09:33:04.18 |
+05:18:35.8 |
HIP 46846 |
12.25 |
| 2026-08-15 00:00 |
09:33:24.25 |
+05:18:35.8 |
HIP 46846 |
14.98 |
| 2026-08-15 12:00 |
09:33:44.31 |
+05:18:35.4 |
HIP 47008 |
17.03 |
| 2026-08-16 00:00 |
09:34:04.36 |
+05:18:34.7 |
HIP 47008 |
12.21 |
| 2026-08-16 12:00 |
09:34:24.40 |
+05:18:33.7 |
HIP 47008 |
7.60 |
| 2026-08-17 00:00 |
09:34:44.43 |
+05:18:32.3 |
HIP 47008 |
4.03 |
| 2026-08-17 12:00 |
09:35:04.44 |
+05:18:30.7 |
HIP 47008 |
4.94 |
| 2026-08-18 00:00 |
09:35:24.45 |
+05:18:28.8 |
HIP 47008 |
9.07 |
| 2026-08-18 12:00 |
09:35:44.44 |
+05:18:26.5 |
HIP 47008 |
13.76 |
| 2026-08-19 00:00 |
09:36:04.42 |
+05:18:24.0 |
HIP 47157 |
16.69 |