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) |
| 2026-09-20 00:00 |
07:17:41.68 |
+13:30:27.5 |
HIP 35268 |
22.71 |
| 2026-09-20 12:00 |
07:17:46.63 |
+13:29:59.1 |
HIP 35268 |
23.57 |
| 2026-09-21 00:00 |
07:17:51.51 |
+13:29:30.7 |
HIP 35268 |
24.45 |
| 2026-09-21 12:00 |
07:17:56.33 |
+13:29:02.3 |
HIP 35268 |
25.37 |
| 2026-09-22 00:00 |
07:18:01.08 |
+13:28:34.0 |
HIP 35268 |
26.31 |
| 2026-09-22 12:00 |
07:18:05.77 |
+13:28:05.7 |
HIP 35268 |
27.26 |
| 2026-09-23 00:00 |
07:18:10.39 |
+13:27:37.5 |
HIP 35268 |
28.22 |
| 2026-09-23 12:00 |
07:18:14.94 |
+13:27:09.3 |
HIP 35268 |
29.20 |
| 2026-09-24 00:00 |
07:18:19.43 |
+13:26:41.2 |
HIP 35268 |
30.18 |
| 2026-09-24 12:00 |
07:18:23.85 |
+13:26:13.1 |
HIP 35268 |
31.17 |
| 2026-09-25 00:00 |
07:18:28.20 |
+13:25:45.0 |
HIP 35268 |
32.15 |
| 2026-09-25 12:00 |
07:18:32.49 |
+13:25:17.1 |
HIP 35268 |
33.14 |
| 2026-09-26 00:00 |
07:18:36.70 |
+13:24:49.1 |
HIP 35268 |
34.13 |
| 2026-09-26 12:00 |
07:18:40.85 |
+13:24:21.3 |
HIP 35501 |
35.05 |
| 2026-09-27 00:00 |
07:18:44.93 |
+13:23:53.5 |
HIP 35501 |
35.11 |
| 2026-09-27 12:00 |
07:18:48.94 |
+13:23:25.7 |
HIP 35501 |
35.21 |
| 2026-09-28 00:00 |
07:18:52.89 |
+13:22:58.0 |
HIP 35501 |
35.34 |
| 2026-09-28 12:00 |
07:18:56.76 |
+13:22:30.4 |
HIP 35620 |
35.19 |
| 2026-09-29 00:00 |
07:19:00.56 |
+13:22:02.9 |
HIP 35620 |
34.16 |
| 2026-09-29 12:00 |
07:19:04.30 |
+13:21:35.4 |
HIP 35620 |
33.15 |
| 2026-09-30 00:00 |
07:19:07.96 |
+13:21:08.0 |
HIP 35620 |
32.15 |
| 2026-09-30 12:00 |
07:19:11.56 |
+13:20:40.7 |
HIP 35620 |
31.16 |
| 2026-10-01 00:00 |
07:19:15.08 |
+13:20:13.4 |
HIP 35620 |
30.19 |
| 2026-10-01 12:00 |
07:19:18.53 |
+13:19:46.2 |
HIP 35620 |
29.24 |
| 2026-10-02 00:00 |
07:19:21.91 |
+13:19:19.1 |
HIP 35620 |
28.30 |
| 2026-10-02 12:00 |
07:19:25.22 |
+13:18:52.1 |
HIP 35620 |
27.38 |
| 2026-10-03 00:00 |
07:19:28.46 |
+13:18:25.1 |
HIP 35620 |
26.47 |
| 2026-10-03 12:00 |
07:19:31.63 |
+13:17:58.3 |
HIP 35620 |
25.58 |
| 2026-10-04 00:00 |
07:19:34.72 |
+13:17:31.5 |
HIP 35620 |
24.71 |
| 2026-10-04 12:00 |
07:19:37.74 |
+13:17:04.8 |
HIP 35620 |
23.85 |
| 2026-10-05 00:00 |
07:19:40.69 |
+13:16:38.3 |
HIP 35620 |
23.01 |
| 2026-10-05 12:00 |
07:19:43.56 |
+13:16:11.8 |
HIP 35620 |
22.18 |
| 2026-10-06 00:00 |
07:19:46.37 |
+13:15:45.4 |
HIP 35620 |
21.37 |
| 2026-10-06 12:00 |
07:19:49.09 |
+13:15:19.1 |
HIP 35620 |
20.57 |
| 2026-10-07 00:00 |
07:19:51.75 |
+13:14:52.9 |
HIP 35620 |
19.80 |
| 2026-10-07 12:00 |
07:19:54.33 |
+13:14:26.7 |
HIP 35620 |
19.03 |
| 2026-10-08 00:00 |
07:19:56.83 |
+13:14:00.8 |
HIP 35620 |
18.29 |
| 2026-10-08 12:00 |
07:19:59.26 |
+13:13:34.9 |
HIP 35620 |
17.56 |
| 2026-10-09 00:00 |
07:20:01.61 |
+13:13:09.1 |
HIP 35620 |
16.85 |
| 2026-10-09 12:00 |
07:20:03.89 |
+13:12:43.4 |
HIP 35620 |
16.16 |
| 2026-10-10 00:00 |
07:20:06.10 |
+13:12:17.9 |
HIP 35620 |
15.48 |
| 2026-10-10 12:00 |
07:20:08.22 |
+13:11:52.4 |
HIP 35620 |
14.82 |
| 2026-10-11 00:00 |
07:20:10.28 |
+13:11:27.1 |
HIP 35620 |
14.18 |