메타데이터
| 항목 |
값 |
| Designation |
504P/WISE-PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2025-04-08T22:54:56.698560Z |
| Orbit solution date (soln_date, UTC) |
2025-08-01T17:26:05Z |
| Obs used |
411 |
| NEO |
- |
| M1 |
4.900 |
| K1 |
35.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2010-06-14T16:55:15.628800Z |
| Discovery magnitude (MPC) |
- |
| Discovery observatory (MPC) |
C51 · WISE |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2024-11-02.0000000 |
| e |
0.40602522 |
| q (au) |
2.224152 |
| a (au) |
3.744523 |
| i (deg) |
8.806861 |
| Ω (om, deg) |
221.121771 |
| ω (w, deg) |
308.496922 |
| M (ma, deg) |
338.514665 |
밝기
산란 + 전체 선형
$$
M_a = (11.142 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.142 |
| n |
6.000 |
| gf |
1.000 |
| 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 |
18:11:49.50 |
-14:46:14.6 |
HIP 89292 |
28.72 |
| 2026-09-20 12:00 |
18:12:03.07 |
-14:47:01.3 |
HIP 89292 |
27.07 |
| 2026-09-21 00:00 |
18:12:16.86 |
-14:47:47.7 |
HIP 89263 |
25.57 |
| 2026-09-21 12:00 |
18:12:30.86 |
-14:48:33.8 |
HIP 89263 |
23.78 |
| 2026-09-22 00:00 |
18:12:45.06 |
-14:49:19.5 |
HIP 89263 |
22.38 |
| 2026-09-22 12:00 |
18:12:59.48 |
-14:50:05.0 |
HIP 89263 |
21.47 |
| 2026-09-23 00:00 |
18:13:14.10 |
-14:50:50.0 |
HIP 89263 |
21.16 |
| 2026-09-23 12:00 |
18:13:28.92 |
-14:51:34.8 |
HIP 89263 |
21.47 |
| 2026-09-24 00:00 |
18:13:43.95 |
-14:52:19.2 |
HIP 89263 |
22.42 |
| 2026-09-24 12:00 |
18:13:59.18 |
-14:53:03.3 |
HIP 89263 |
23.95 |
| 2026-09-25 00:00 |
18:14:14.62 |
-14:53:47.0 |
HIP 89263 |
25.97 |
| 2026-09-25 12:00 |
18:14:30.25 |
-14:54:30.3 |
HIP 89518 |
22.22 |
| 2026-09-26 00:00 |
18:14:46.08 |
-14:55:13.3 |
HIP 89518 |
18.38 |
| 2026-09-26 12:00 |
18:15:02.10 |
-14:55:55.9 |
HIP 89518 |
14.51 |
| 2026-09-27 00:00 |
18:15:18.33 |
-14:56:38.1 |
HIP 89518 |
10.65 |
| 2026-09-27 12:00 |
18:15:34.74 |
-14:57:20.0 |
HIP 89518 |
6.88 |
| 2026-09-28 00:00 |
18:15:51.35 |
-14:58:01.4 |
HIP 89518 |
3.66 |
| 2026-09-28 12:00 |
18:16:08.15 |
-14:58:42.5 |
HIP 89518 |
3.57 |
| 2026-09-29 00:00 |
18:16:25.14 |
-14:59:23.2 |
HIP 89518 |
6.81 |
| 2026-09-29 12:00 |
18:16:42.32 |
-15:00:03.5 |
HIP 89518 |
10.74 |
| 2026-09-30 00:00 |
18:16:59.69 |
-15:00:43.4 |
HIP 89626 |
11.67 |
| 2026-09-30 12:00 |
18:17:17.24 |
-15:01:22.9 |
HIP 89626 |
10.65 |
| 2026-10-01 00:00 |
18:17:34.98 |
-15:02:01.9 |
HIP 89626 |
11.30 |
| 2026-10-01 12:00 |
18:17:52.91 |
-15:02:40.6 |
HIP 89626 |
13.42 |
| 2026-10-02 00:00 |
18:18:11.01 |
-15:03:18.8 |
HIP 89626 |
16.47 |
| 2026-10-02 12:00 |
18:18:29.30 |
-15:03:56.6 |
HIP 89626 |
20.07 |
| 2026-10-03 00:00 |
18:18:47.77 |
-15:04:34.0 |
HIP 89626 |
23.99 |
| 2026-10-03 12:00 |
18:19:06.42 |
-15:05:10.9 |
HIP 89856 |
21.98 |
| 2026-10-04 00:00 |
18:19:25.25 |
-15:05:47.4 |
HIP 89856 |
19.25 |
| 2026-10-04 12:00 |
18:19:44.26 |
-15:06:23.5 |
HIP 89856 |
17.29 |
| 2026-10-05 00:00 |
18:20:03.44 |
-15:06:59.1 |
HIP 89938 |
15.77 |
| 2026-10-05 12:00 |
18:20:22.79 |
-15:07:34.2 |
HIP 89938 |
11.41 |
| 2026-10-06 00:00 |
18:20:42.33 |
-15:08:08.9 |
HIP 89938 |
7.46 |
| 2026-10-06 12:00 |
18:21:02.03 |
-15:08:43.0 |
HIP 89938 |
5.12 |
| 2026-10-07 00:00 |
18:21:21.91 |
-15:09:16.8 |
HIP 89938 |
6.57 |
| 2026-10-07 12:00 |
18:21:41.95 |
-15:09:50.0 |
HIP 90032 |
8.94 |
| 2026-10-08 00:00 |
18:22:02.17 |
-15:10:22.8 |
HIP 90032 |
5.82 |
| 2026-10-08 12:00 |
18:22:22.55 |
-15:10:55.0 |
HIP 90032 |
6.00 |
| 2026-10-09 00:00 |
18:22:43.10 |
-15:11:26.8 |
HIP 90032 |
9.36 |
| 2026-10-09 12:00 |
18:23:03.82 |
-15:11:58.1 |
HIP 90032 |
13.77 |
| 2026-10-10 00:00 |
18:23:24.70 |
-15:12:28.8 |
HIP 90032 |
18.54 |
| 2026-10-10 12:00 |
18:23:45.75 |
-15:12:59.1 |
HIP 90232 |
16.68 |
| 2026-10-11 00:00 |
18:24:06.95 |
-15:13:28.8 |
HIP 90232 |
12.73 |