메타데이터
| 항목 |
값 |
| Designation |
C/2011 P2 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-09-13T12:20:43.287360Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:54Z |
| Obs used |
58 |
| NEO |
- |
| M1 |
6.700 |
| K1 |
12.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2012-02-09.0000000 |
| e |
0.36981923 |
| q (au) |
6.148105 |
| a (au) |
9.756097 |
| i (deg) |
8.989636 |
| Ω (om, deg) |
204.018525 |
| ω (w, deg) |
76.384633 |
| M (ma, deg) |
16.608031 |
밝기
산란 + 전체 선형
$$
M_a = (3.498 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
3.498 |
| n |
6.000 |
| gf |
0.977 |
| gb |
-1.000 |
| k |
1.000 |
| 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) |
| 2026-06-01 00:00 |
06:44:52.36 |
+14:42:53.8 |
HIP 32308 |
11.94 |
| 2026-06-01 12:00 |
06:45:01.54 |
+14:42:51.6 |
HIP 32308 |
12.59 |
| 2026-06-02 00:00 |
06:45:10.75 |
+14:42:49.2 |
HIP 32308 |
13.58 |
| 2026-06-02 12:00 |
06:45:19.99 |
+14:42:46.7 |
HIP 32308 |
14.85 |
| 2026-06-03 00:00 |
06:45:29.26 |
+14:42:43.9 |
HIP 32308 |
16.33 |
| 2026-06-03 12:00 |
06:45:38.56 |
+14:42:41.0 |
HIP 32308 |
17.97 |
| 2026-06-04 00:00 |
06:45:47.88 |
+14:42:37.8 |
HIP 32308 |
19.75 |
| 2026-06-04 12:00 |
06:45:57.24 |
+14:42:34.5 |
HIP 32308 |
21.62 |
| 2026-06-05 00:00 |
06:46:06.62 |
+14:42:31.0 |
HIP 32308 |
23.57 |
| 2026-06-05 12:00 |
06:46:16.03 |
+14:42:27.3 |
HIP 32308 |
25.57 |
| 2026-06-06 00:00 |
06:46:25.46 |
+14:42:23.4 |
HIP 32593 |
25.36 |
| 2026-06-06 12:00 |
06:46:34.92 |
+14:42:19.2 |
HIP 32593 |
23.31 |
| 2026-06-07 00:00 |
06:46:44.41 |
+14:42:15.0 |
HIP 32593 |
21.29 |
| 2026-06-07 12:00 |
06:46:53.92 |
+14:42:10.5 |
HIP 32593 |
19.34 |
| 2026-06-08 00:00 |
06:47:03.46 |
+14:42:05.8 |
HIP 32593 |
17.46 |
| 2026-06-08 12:00 |
06:47:13.03 |
+14:42:00.9 |
HIP 32593 |
15.69 |
| 2026-06-09 00:00 |
06:47:22.61 |
+14:41:55.8 |
HIP 32593 |
14.07 |
| 2026-06-09 12:00 |
06:47:32.22 |
+14:41:50.6 |
HIP 32612 |
12.42 |
| 2026-06-10 00:00 |
06:47:41.86 |
+14:41:45.1 |
HIP 32612 |
10.42 |
| 2026-06-10 12:00 |
06:47:51.51 |
+14:41:39.5 |
HIP 32612 |
8.59 |
| 2026-06-11 00:00 |
06:48:01.19 |
+14:41:33.6 |
HIP 32612 |
7.06 |
| 2026-06-11 12:00 |
06:48:10.90 |
+14:41:27.6 |
HIP 32612 |
6.07 |
| 2026-06-12 00:00 |
06:48:20.62 |
+14:41:21.4 |
HIP 32612 |
5.90 |
| 2026-06-12 12:00 |
06:48:30.36 |
+14:41:14.9 |
HIP 32612 |
6.62 |
| 2026-06-13 00:00 |
06:48:40.13 |
+14:41:08.3 |
HIP 32612 |
8.00 |
| 2026-06-13 12:00 |
06:48:49.91 |
+14:41:01.5 |
HIP 32612 |
9.77 |
| 2026-06-14 00:00 |
06:48:59.72 |
+14:40:54.5 |
HIP 32612 |
11.75 |
| 2026-06-14 12:00 |
06:49:09.54 |
+14:40:47.3 |
HIP 32612 |
13.87 |
| 2026-06-15 00:00 |
06:49:19.39 |
+14:40:39.9 |
HIP 32612 |
16.06 |
| 2026-06-15 12:00 |
06:49:29.25 |
+14:40:32.3 |
HIP 32612 |
18.30 |
| 2026-06-16 00:00 |
06:49:39.12 |
+14:40:24.5 |
HIP 32612 |
20.58 |
| 2026-06-16 12:00 |
06:49:49.02 |
+14:40:16.6 |
HIP 32612 |
22.88 |
| 2026-06-17 00:00 |
06:49:58.93 |
+14:40:08.4 |
HIP 32612 |
25.21 |
| 2026-06-17 12:00 |
06:50:08.86 |
+14:40:00.0 |
HIP 32612 |
27.55 |
| 2026-06-18 00:00 |
06:50:18.80 |
+14:39:51.5 |
HIP 32896 |
28.20 |
| 2026-06-18 12:00 |
06:50:28.76 |
+14:39:42.7 |
HIP 32896 |
27.26 |
| 2026-06-19 00:00 |
06:50:38.73 |
+14:39:33.8 |
HIP 32896 |
26.51 |
| 2026-06-19 12:00 |
06:50:48.72 |
+14:39:24.7 |
HIP 32896 |
25.96 |
| 2026-06-20 00:00 |
06:50:58.72 |
+14:39:15.4 |
HIP 32896 |
25.64 |
| 2026-06-20 12:00 |
06:51:08.74 |
+14:39:05.9 |
HIP 32896 |
25.54 |
| 2026-06-21 00:00 |
06:51:18.76 |
+14:38:56.2 |
HIP 32896 |
25.68 |
| 2026-06-21 12:00 |
06:51:28.80 |
+14:38:46.3 |
HIP 32896 |
26.04 |
| 2026-06-22 00:00 |
06:51:38.85 |
+14:38:36.2 |
HIP 32896 |
26.63 |