メタデータ
| 項目 |
値 |
| Designation |
P/2023 B3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2020-09-02T19:46:49.169280Z |
| Orbit solution date (soln_date, UTC) |
2023-03-20T19:43:10Z |
| Obs used |
82 |
| NEO |
- |
| M1 |
14.700 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-01-23T10:13:08.774400Z |
| Discovery magnitude (MPC) |
21.14 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) |
2022-12-21.0000000 |
| e |
0.12329891 |
| q (au) |
3.982887 |
| a (au) |
4.543039 |
| i (deg) |
9.163475 |
| Ω (om, deg) |
154.004785 |
| ω (w, deg) |
239.769487 |
| M (ma, deg) |
85.415628 |
等級
散乱 + 全体線形
$$
M_a = (14.589 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
14.589 |
| n |
2.000 |
| gf |
0.840 |
| gb |
-0.934 |
| k |
1.000 |
| δ90 |
1.000 |
| 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
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) |
| 2026-09-20 00:00 |
15:55:21.36 |
-11:42:14.7 |
HIP 77863 |
31.88 |
| 2026-09-20 12:00 |
15:55:40.39 |
-11:43:56.1 |
HIP 77863 |
33.91 |
| 2026-09-21 00:00 |
15:55:59.53 |
-11:45:37.5 |
HIP 77863 |
36.53 |
| 2026-09-21 12:00 |
15:56:18.81 |
-11:47:18.9 |
HIP 77863 |
39.63 |
| 2026-09-22 00:00 |
15:56:38.20 |
-11:49:00.3 |
HIP 77863 |
43.11 |
| 2026-09-22 12:00 |
15:56:57.72 |
-11:50:41.6 |
HIP 77863 |
46.91 |
| 2026-09-23 00:00 |
15:57:17.35 |
-11:52:23.0 |
HIP 77863 |
50.95 |
| 2026-09-23 12:00 |
15:57:37.11 |
-11:54:04.3 |
HIP 77863 |
55.20 |
| 2026-09-24 00:00 |
15:57:56.99 |
-11:55:45.5 |
HIP 78453 |
50.67 |
| 2026-09-24 12:00 |
15:58:16.99 |
-11:57:26.7 |
HIP 78453 |
45.58 |
| 2026-09-25 00:00 |
15:58:37.10 |
-11:59:07.9 |
HIP 78453 |
40.49 |
| 2026-09-25 12:00 |
15:58:57.34 |
-12:00:49.0 |
HIP 78453 |
35.41 |
| 2026-09-26 00:00 |
15:59:17.69 |
-12:02:30.1 |
HIP 78484 |
30.24 |
| 2026-09-26 12:00 |
15:59:38.15 |
-12:04:11.1 |
HIP 78484 |
25.01 |
| 2026-09-27 00:00 |
15:59:58.73 |
-12:05:52.0 |
HIP 78484 |
19.77 |
| 2026-09-27 12:00 |
16:00:19.43 |
-12:07:32.9 |
HIP 78484 |
14.55 |
| 2026-09-28 00:00 |
16:00:40.24 |
-12:09:13.7 |
HIP 78484 |
9.44 |
| 2026-09-28 12:00 |
16:01:01.16 |
-12:10:54.4 |
HIP 78484 |
4.84 |
| 2026-09-29 00:00 |
16:01:22.19 |
-12:12:35.0 |
HIP 78484 |
3.97 |
| 2026-09-29 12:00 |
16:01:43.34 |
-12:14:15.6 |
HIP 78484 |
8.18 |
| 2026-09-30 00:00 |
16:02:04.60 |
-12:15:56.0 |
HIP 78484 |
13.33 |
| 2026-09-30 12:00 |
16:02:25.97 |
-12:17:36.3 |
HIP 78569 |
13.11 |
| 2026-10-01 00:00 |
16:02:47.45 |
-12:19:16.6 |
HIP 78569 |
11.46 |
| 2026-10-01 12:00 |
16:03:09.04 |
-12:20:56.7 |
HIP 78569 |
12.33 |
| 2026-10-02 00:00 |
16:03:30.73 |
-12:22:36.7 |
HIP 78569 |
15.31 |
| 2026-10-02 12:00 |
16:03:52.54 |
-12:24:16.6 |
HIP 78569 |
19.48 |
| 2026-10-03 00:00 |
16:04:14.46 |
-12:25:56.4 |
HIP 78569 |
24.25 |
| 2026-10-03 12:00 |
16:04:36.48 |
-12:27:36.0 |
HIP 78838 |
21.29 |
| 2026-10-04 00:00 |
16:04:58.60 |
-12:29:15.5 |
HIP 78838 |
16.53 |
| 2026-10-04 12:00 |
16:05:20.84 |
-12:30:54.9 |
HIP 78838 |
12.52 |
| 2026-10-05 00:00 |
16:05:43.18 |
-12:32:34.1 |
HIP 78838 |
10.25 |
| 2026-10-05 12:00 |
16:06:05.62 |
-12:34:13.2 |
HIP 78838 |
10.88 |
| 2026-10-06 00:00 |
16:06:28.17 |
-12:35:52.1 |
HIP 78838 |
14.06 |
| 2026-10-06 12:00 |
16:06:50.82 |
-12:37:30.8 |
HIP 79005 |
13.26 |
| 2026-10-07 00:00 |
16:07:13.58 |
-12:39:09.4 |
HIP 79005 |
7.88 |
| 2026-10-07 12:00 |
16:07:36.43 |
-12:40:47.8 |
HIP 79005 |
3.92 |
| 2026-10-08 00:00 |
16:07:59.39 |
-12:42:26.1 |
HIP 79005 |
6.04 |
| 2026-10-08 12:00 |
16:08:22.45 |
-12:44:04.2 |
HIP 79005 |
11.24 |
| 2026-10-09 00:00 |
16:08:45.60 |
-12:45:42.0 |
HIP 79005 |
16.89 |
| 2026-10-09 12:00 |
16:09:08.86 |
-12:47:19.7 |
HIP 79200 |
12.31 |
| 2026-10-10 00:00 |
16:09:32.21 |
-12:48:57.2 |
HIP 79200 |
6.65 |
| 2026-10-10 12:00 |
16:09:55.66 |
-12:50:34.5 |
HIP 79200 |
2.63 |
| 2026-10-11 00:00 |
16:10:19.21 |
-12:52:11.6 |
HIP 79200 |
6.37 |