メタデータ
| 項目 |
値 |
| Designation |
C/2022 R6 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-08-26T01:09:59.929920Z |
| Orbit solution date (soln_date, UTC) |
2026-10-01T13:12:08Z |
| Obs used |
2468 |
| 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) |
2025-03-31.0000000 |
| e |
1.00498202 |
| q (au) |
6.565680 |
| a (au) |
-1317.875302 |
| i (deg) |
57.018638 |
| Ω (om, deg) |
150.786381 |
| ω (w, deg) |
319.902058 |
| M (ma, deg) |
-0.003050 |
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) |
| 2026-09-25 00:00 |
09:59:30.05 |
+05:08:07.9 |
HIP 48989 |
6.00 |
| 2026-09-25 12:00 |
09:59:47.54 |
+05:07:59.1 |
HIP 48989 |
5.47 |
| 2026-09-26 00:00 |
10:00:04.98 |
+05:07:50.5 |
HIP 48989 |
7.85 |
| 2026-09-26 12:00 |
10:00:22.36 |
+05:07:42.0 |
HIP 48989 |
11.44 |
| 2026-09-27 00:00 |
10:00:39.69 |
+05:07:33.6 |
HIP 49074 |
9.05 |
| 2026-09-27 12:00 |
10:00:56.97 |
+05:07:25.5 |
HIP 49074 |
7.70 |
| 2026-09-28 00:00 |
10:01:14.19 |
+05:07:17.4 |
HIP 49074 |
8.59 |
| 2026-09-28 12:00 |
10:01:31.35 |
+05:07:09.6 |
HIP 49074 |
11.17 |
| 2026-09-29 00:00 |
10:01:48.45 |
+05:07:01.9 |
HIP 49074 |
14.56 |
| 2026-09-29 12:00 |
10:02:05.50 |
+05:06:54.3 |
HIP 49074 |
18.30 |
| 2026-09-30 00:00 |
10:02:22.49 |
+05:06:47.0 |
HIP 49074 |
22.22 |
| 2026-09-30 12:00 |
10:02:39.42 |
+05:06:39.8 |
HIP 49074 |
26.22 |
| 2026-10-01 00:00 |
10:02:56.30 |
+05:06:32.9 |
HIP 49254 |
27.16 |
| 2026-10-01 12:00 |
10:03:13.11 |
+05:06:26.1 |
HIP 49374 |
24.32 |
| 2026-10-02 00:00 |
10:03:29.86 |
+05:06:19.6 |
HIP 49374 |
20.28 |
| 2026-10-02 12:00 |
10:03:46.56 |
+05:06:13.2 |
HIP 49374 |
16.32 |
| 2026-10-03 00:00 |
10:04:03.19 |
+05:06:07.1 |
HIP 49374 |
12.51 |
| 2026-10-03 12:00 |
10:04:19.76 |
+05:06:01.2 |
HIP 49374 |
9.02 |
| 2026-10-04 00:00 |
10:04:36.26 |
+05:05:55.5 |
HIP 49374 |
6.34 |
| 2026-10-04 12:00 |
10:04:52.71 |
+05:05:50.1 |
HIP 49374 |
5.74 |
| 2026-10-05 00:00 |
10:05:09.09 |
+05:05:44.9 |
HIP 49374 |
7.69 |
| 2026-10-05 12:00 |
10:05:25.40 |
+05:05:40.0 |
HIP 49374 |
10.88 |
| 2026-10-06 00:00 |
10:05:41.65 |
+05:05:35.3 |
HIP 49374 |
14.50 |
| 2026-10-06 12:00 |
10:05:57.83 |
+05:05:30.9 |
HIP 49374 |
18.28 |
| 2026-10-07 00:00 |
10:06:13.95 |
+05:05:26.7 |
HIP 49374 |
22.14 |
| 2026-10-07 12:00 |
10:06:30.00 |
+05:05:22.8 |
HIP 49374 |
26.03 |
| 2026-10-08 00:00 |
10:06:45.98 |
+05:05:19.3 |
HIP 49374 |
29.93 |
| 2026-10-08 12:00 |
10:07:01.90 |
+05:05:16.0 |
HIP 49530 |
31.63 |
| 2026-10-09 00:00 |
10:07:17.74 |
+05:05:13.0 |
HIP 49530 |
32.37 |
| 2026-10-09 12:00 |
10:07:33.51 |
+05:05:10.3 |
HIP 49530 |
33.54 |
| 2026-10-10 00:00 |
10:07:49.22 |
+05:05:07.9 |
HIP 49530 |
35.11 |
| 2026-10-10 12:00 |
10:08:04.85 |
+05:05:05.9 |
HIP 49692 |
35.59 |
| 2026-10-11 00:00 |
10:08:20.41 |
+05:05:04.2 |
HIP 49692 |
34.83 |
| 2026-10-11 12:00 |
10:08:35.90 |
+05:05:02.8 |
HIP 49692 |
34.51 |
| 2026-10-12 00:00 |
10:08:51.31 |
+05:05:01.7 |
HIP 49824 |
34.55 |
| 2026-10-12 12:00 |
10:09:06.66 |
+05:05:01.0 |
HIP 49880 |
31.42 |
| 2026-10-13 00:00 |
10:09:21.92 |
+05:05:00.7 |
HIP 49880 |
27.85 |
| 2026-10-13 12:00 |
10:09:37.12 |
+05:05:00.7 |
HIP 49880 |
24.37 |
| 2026-10-14 00:00 |
10:09:52.23 |
+05:05:01.1 |
HIP 49880 |
21.00 |
| 2026-10-14 12:00 |
10:10:07.27 |
+05:05:01.8 |
HIP 49880 |
17.80 |
| 2026-10-15 00:00 |
10:10:22.24 |
+05:05:02.9 |
HIP 49880 |
14.87 |
| 2026-10-15 12:00 |
10:10:37.13 |
+05:05:04.5 |
HIP 49880 |
12.38 |
| 2026-10-16 00:00 |
10:10:51.94 |
+05:05:06.4 |
HIP 49880 |
10.63 |