메타데이터
| 항목 |
값 |
| Designation |
511P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2025-07-10T19:10:49.324800Z |
| Orbit solution date (soln_date, UTC) |
2026-03-12T02:52:17Z |
| Obs used |
86 |
| NEO |
- |
| M1 |
15.800 |
| K1 |
13.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2015-12-12T12:34:40.684800Z |
| Discovery magnitude (MPC) |
22.58 G |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2024-03-01.0000000 |
| e |
0.23765110 |
| q (au) |
2.295953 |
| a (au) |
3.011683 |
| i (deg) |
14.783495 |
| Ω (om, deg) |
271.030812 |
| ω (w, deg) |
81.166342 |
| M (ma, deg) |
266.314774 |
밝기
산란 + 전체 선형
$$
M_a = (16.310 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.310 |
| n |
6.000 |
| gf |
0.998 |
| gb |
-0.569 |
| k |
0.800 |
| δ90 |
10.000 |
| 파라미터 |
기호 |
범위 |
설명 |
| 태양·지구거리 1 AU에서의 절대등급 |
H0 |
-5 to 20 |
혜성의 고유 밝기 |
| 광도 기울기 파라미터 |
n |
2 to 6 |
태양거리 변화에 따른 밝기 변화율 |
| 전방 산란 비대칭 계수 |
gf |
0.8 to 1 |
전방 산란의 강도 |
| 후방 산란 비대칭 계수 |
gb |
-1 to -0.5 |
후방 산란의 강도 |
| 분할 계수 |
k |
0.8 to 1 |
전·후방 산란 기여도 비율 |
| 먼지/가스 밝기 비 |
δ90 |
1 to 10 |
코마에서 먼지 산란 대비 가스 방출의 상대 기여 |
참고: EPSC-DPS2025-160
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
04:30:38.66 |
+24:42:16.3 |
HIP 21103 |
21.37 |
| 2026-05-12 12:00 |
04:31:32.86 |
+24:42:51.0 |
HIP 21103 |
19.34 |
| 2026-05-13 00:00 |
04:32:27.05 |
+24:43:24.8 |
HIP 21275 |
23.40 |
| 2026-05-13 12:00 |
04:33:21.24 |
+24:43:57.7 |
HIP 21275 |
15.48 |
| 2026-05-14 00:00 |
04:34:15.42 |
+24:44:29.6 |
HIP 21275 |
15.34 |
| 2026-05-14 12:00 |
04:35:09.60 |
+24:45:00.7 |
HIP 21275 |
23.11 |
| 2026-05-15 00:00 |
04:36:03.78 |
+24:45:30.7 |
HIP 21591 |
31.16 |
| 2026-05-15 12:00 |
04:36:57.94 |
+24:45:59.9 |
HIP 21591 |
20.73 |
| 2026-05-16 00:00 |
04:37:52.10 |
+24:46:28.1 |
HIP 21591 |
13.84 |
| 2026-05-16 12:00 |
04:38:46.25 |
+24:46:55.4 |
HIP 21591 |
16.01 |
| 2026-05-17 00:00 |
04:39:40.39 |
+24:47:21.7 |
HIP 21759 |
18.27 |
| 2026-05-17 12:00 |
04:40:34.52 |
+24:47:47.0 |
HIP 21759 |
15.65 |
| 2026-05-18 00:00 |
04:41:28.64 |
+24:48:11.4 |
HIP 21759 |
21.41 |
| 2026-05-18 12:00 |
04:42:22.74 |
+24:48:34.9 |
HIP 21759 |
31.20 |
| 2026-05-19 00:00 |
04:43:16.84 |
+24:48:57.3 |
HIP 22096 |
36.80 |
| 2026-05-19 12:00 |
04:44:10.92 |
+24:49:18.9 |
HIP 22096 |
29.06 |
| 2026-05-20 00:00 |
04:45:04.99 |
+24:49:39.4 |
HIP 22096 |
25.23 |
| 2026-05-20 12:00 |
04:45:59.04 |
+24:49:59.0 |
HIP 22096 |
27.02 |
| 2026-05-21 00:00 |
04:46:53.08 |
+24:50:17.6 |
HIP 22334 |
23.97 |
| 2026-05-21 12:00 |
04:47:47.10 |
+24:50:35.2 |
HIP 22334 |
12.54 |
| 2026-05-22 00:00 |
04:48:41.11 |
+24:50:51.9 |
HIP 22334 |
6.39 |
| 2026-05-22 12:00 |
04:49:35.09 |
+24:51:07.5 |
HIP 22394 |
5.83 |
| 2026-05-23 00:00 |
04:50:29.06 |
+24:51:22.2 |
HIP 22394 |
17.57 |
| 2026-05-23 12:00 |
04:51:23.01 |
+24:51:35.9 |
HIP 22725 |
26.30 |
| 2026-05-24 00:00 |
04:52:16.95 |
+24:51:48.6 |
HIP 22725 |
14.14 |
| 2026-05-24 12:00 |
04:53:10.86 |
+24:52:00.3 |
HIP 22725 |
2.76 |
| 2026-05-25 00:00 |
04:54:04.75 |
+24:52:11.0 |
HIP 22725 |
10.69 |
| 2026-05-25 12:00 |
04:54:58.62 |
+24:52:20.8 |
HIP 22725 |
22.80 |
| 2026-05-26 00:00 |
04:55:52.47 |
+24:52:29.5 |
HIP 22949 |
17.75 |
| 2026-05-26 12:00 |
04:56:46.30 |
+24:52:37.2 |
HIP 23032 |
6.92 |
| 2026-05-27 00:00 |
04:57:40.10 |
+24:52:44.0 |
HIP 23032 |
8.27 |
| 2026-05-27 12:00 |
04:58:33.89 |
+24:52:49.7 |
HIP 23088 |
11.62 |
| 2026-05-28 00:00 |
04:59:27.65 |
+24:52:54.4 |
HIP 23259 |
19.00 |
| 2026-05-28 12:00 |
05:00:21.38 |
+24:52:58.1 |
HIP 23259 |
15.24 |
| 2026-05-29 00:00 |
05:01:15.09 |
+24:53:00.9 |
HIP 23384 |
15.63 |
| 2026-05-29 12:00 |
05:02:08.78 |
+24:53:02.6 |
HIP 23384 |
16.43 |
| 2026-05-30 00:00 |
05:03:02.45 |
+24:53:03.3 |
HIP 23550 |
12.41 |
| 2026-05-30 12:00 |
05:03:56.08 |
+24:53:03.0 |
HIP 23550 |
5.42 |
| 2026-05-31 00:00 |
05:04:49.69 |
+24:53:01.7 |
HIP 23550 |
14.16 |
| 2026-05-31 12:00 |
05:05:43.28 |
+24:52:59.3 |
HIP 23796 |
17.85 |
| 2026-06-01 00:00 |
05:06:36.84 |
+24:52:56.0 |
HIP 23796 |
10.82 |
| 2026-06-01 12:00 |
05:07:30.37 |
+24:52:51.6 |
HIP 23860 |
4.06 |
| 2026-06-02 00:00 |
05:08:23.87 |
+24:52:46.3 |
HIP 23860 |
10.32 |