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) |
| 2026-03-26 00:00 |
03:06:36.41 |
+22:51:37.4 |
HIP 14394 |
18.95 |
| 2026-03-26 12:00 |
03:07:28.74 |
+22:53:13.4 |
HIP 14572 |
16.44 |
| 2026-03-27 00:00 |
03:08:21.12 |
+22:54:49.1 |
HIP 14572 |
15.51 |
| 2026-03-27 12:00 |
03:09:13.54 |
+22:56:24.5 |
HIP 14572 |
22.54 |
| 2026-03-28 00:00 |
03:10:05.99 |
+22:57:59.5 |
HIP 14908 |
32.36 |
| 2026-03-28 12:00 |
03:10:58.50 |
+22:59:34.3 |
HIP 14908 |
20.97 |
| 2026-03-29 00:00 |
03:11:51.04 |
+23:01:08.7 |
HIP 14908 |
11.38 |
| 2026-03-29 12:00 |
03:12:43.62 |
+23:02:42.8 |
HIP 14908 |
10.80 |
| 2026-03-30 00:00 |
03:13:36.24 |
+23:04:16.5 |
HIP 15072 |
11.75 |
| 2026-03-30 12:00 |
03:14:28.91 |
+23:05:49.9 |
HIP 15072 |
9.02 |
| 2026-03-31 00:00 |
03:15:21.61 |
+23:07:22.9 |
HIP 15072 |
17.98 |
| 2026-03-31 12:00 |
03:16:14.35 |
+23:08:55.5 |
HIP 15267 |
9.89 |
| 2026-04-01 00:00 |
03:17:07.13 |
+23:10:27.7 |
HIP 15267 |
3.68 |
| 2026-04-01 12:00 |
03:17:59.94 |
+23:11:59.5 |
HIP 15267 |
15.12 |
| 2026-04-02 00:00 |
03:18:52.80 |
+23:13:30.9 |
HIP 15586 |
26.06 |
| 2026-04-02 12:00 |
03:19:45.69 |
+23:15:02.0 |
HIP 15586 |
14.36 |
| 2026-04-03 00:00 |
03:20:38.62 |
+23:16:32.5 |
HIP 15586 |
5.74 |
| 2026-04-03 12:00 |
03:21:31.58 |
+23:18:02.7 |
HIP 15586 |
12.65 |
| 2026-04-04 00:00 |
03:22:24.58 |
+23:19:32.4 |
HIP 15640 |
23.91 |
| 2026-04-04 12:00 |
03:23:17.61 |
+23:21:01.7 |
HIP 15844 |
28.38 |
| 2026-04-05 00:00 |
03:24:10.68 |
+23:22:30.5 |
HIP 15844 |
24.63 |
| 2026-04-05 12:00 |
03:25:03.79 |
+23:23:58.8 |
HIP 15844 |
26.62 |
| 2026-04-06 00:00 |
03:25:56.92 |
+23:25:26.7 |
HIP 16072 |
25.61 |
| 2026-04-06 12:00 |
03:26:50.10 |
+23:26:54.1 |
HIP 16072 |
19.87 |
| 2026-04-07 00:00 |
03:27:43.30 |
+23:28:21.0 |
HIP 16072 |
20.86 |
| 2026-04-07 12:00 |
03:28:36.54 |
+23:29:47.4 |
HIP 16072 |
27.88 |
| 2026-04-08 00:00 |
03:29:29.81 |
+23:31:13.3 |
HIP 16440 |
31.35 |
| 2026-04-08 12:00 |
03:30:23.11 |
+23:32:38.6 |
HIP 16440 |
19.23 |
| 2026-04-09 00:00 |
03:31:16.45 |
+23:34:03.5 |
HIP 16440 |
7.71 |
| 2026-04-09 12:00 |
03:32:09.81 |
+23:35:27.8 |
HIP 16440 |
7.19 |
| 2026-04-10 00:00 |
03:33:03.21 |
+23:36:51.6 |
HIP 16529 |
5.57 |
| 2026-04-10 12:00 |
03:33:56.64 |
+23:38:14.9 |
HIP 16529 |
15.61 |
| 2026-04-11 00:00 |
03:34:50.09 |
+23:39:37.6 |
HIP 16784 |
22.08 |
| 2026-04-11 12:00 |
03:35:43.58 |
+23:40:59.7 |
HIP 16824 |
12.41 |
| 2026-04-12 00:00 |
03:36:37.10 |
+23:42:21.3 |
HIP 16824 |
5.82 |
| 2026-04-12 12:00 |
03:37:30.64 |
+23:43:42.3 |
HIP 16824 |
14.75 |
| 2026-04-13 00:00 |
03:38:24.21 |
+23:45:02.8 |
HIP 16824 |
26.56 |
| 2026-04-13 12:00 |
03:39:17.81 |
+23:46:22.6 |
HIP 17091 |
29.41 |
| 2026-04-14 00:00 |
03:40:11.44 |
+23:47:41.8 |
HIP 17225 |
24.69 |
| 2026-04-14 12:00 |
03:41:05.09 |
+23:49:00.5 |
HIP 17225 |
20.20 |
| 2026-04-15 00:00 |
03:41:58.77 |
+23:50:18.5 |
HIP 17225 |
22.62 |
| 2026-04-15 12:00 |
03:42:52.48 |
+23:51:35.9 |
HIP 17401 |
16.90 |
| 2026-04-16 00:00 |
03:43:46.21 |
+23:52:52.7 |
HIP 17401 |
13.96 |