메타데이터
| 항목 |
값 |
| Designation |
7P/Pons-Winnecke |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-01-30T12:40:01.945920Z |
| Orbit solution date (soln_date, UTC) |
2026-03-09T08:45:39Z |
| Obs used |
1692 |
| NEO |
Yes |
| M1 |
16.000 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2015-05-28.0000000 |
| e |
0.63758286 |
| q (au) |
1.239188 |
| a (au) |
3.419231 |
| i (deg) |
22.334521 |
| Ω (om, deg) |
93.414925 |
| ω (w, deg) |
172.505661 |
| M (ma, deg) |
18.312452 |
밝기
산란 + 전체 선형
$$
M_a = (14.651 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.651 |
| n |
2.000 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
07:39:26.37 |
+30:50:26.6 |
HIP 37176 |
16.82 |
| 2026-06-01 12:00 |
07:39:55.12 |
+30:49:25.1 |
HIP 37176 |
21.96 |
| 2026-06-02 00:00 |
07:40:24.00 |
+30:48:23.3 |
HIP 37456 |
19.09 |
| 2026-06-02 12:00 |
07:40:52.98 |
+30:47:21.2 |
HIP 37456 |
15.07 |
| 2026-06-03 00:00 |
07:41:22.09 |
+30:46:18.8 |
HIP 37456 |
13.01 |
| 2026-06-03 12:00 |
07:41:51.30 |
+30:45:16.1 |
HIP 37456 |
13.86 |
| 2026-06-04 00:00 |
07:42:20.63 |
+30:44:13.0 |
HIP 37456 |
17.23 |
| 2026-06-04 12:00 |
07:42:50.07 |
+30:43:09.7 |
HIP 37456 |
22.00 |
| 2026-06-05 00:00 |
07:43:19.62 |
+30:42:06.1 |
HIP 37456 |
27.48 |
| 2026-06-05 12:00 |
07:43:49.28 |
+30:41:02.1 |
HIP 37761 |
27.85 |
| 2026-06-06 00:00 |
07:44:19.06 |
+30:39:57.8 |
HIP 37761 |
27.18 |
| 2026-06-06 12:00 |
07:44:48.94 |
+30:38:53.2 |
HIP 37761 |
28.05 |
| 2026-06-07 00:00 |
07:45:18.92 |
+30:37:48.3 |
HIP 37761 |
30.32 |
| 2026-06-07 12:00 |
07:45:49.02 |
+30:36:43.1 |
HIP 37761 |
33.74 |
| 2026-06-08 00:00 |
07:46:19.22 |
+30:35:37.5 |
HIP 38012 |
33.03 |
| 2026-06-08 12:00 |
07:46:49.53 |
+30:34:31.6 |
HIP 38012 |
29.71 |
| 2026-06-09 00:00 |
07:47:19.94 |
+30:33:25.5 |
HIP 38012 |
27.60 |
| 2026-06-09 12:00 |
07:47:50.46 |
+30:32:18.9 |
HIP 38122 |
25.12 |
| 2026-06-10 00:00 |
07:48:21.07 |
+30:31:12.1 |
HIP 38122 |
23.93 |
| 2026-06-10 12:00 |
07:48:51.80 |
+30:30:05.0 |
HIP 38122 |
24.57 |
| 2026-06-11 00:00 |
07:49:22.62 |
+30:28:57.5 |
HIP 38318 |
25.08 |
| 2026-06-11 12:00 |
07:49:53.54 |
+30:27:49.7 |
HIP 38318 |
18.99 |
| 2026-06-12 00:00 |
07:50:24.57 |
+30:26:41.6 |
HIP 38318 |
13.55 |
| 2026-06-12 12:00 |
07:50:55.69 |
+30:25:33.1 |
HIP 38364 |
9.73 |
| 2026-06-13 00:00 |
07:51:26.91 |
+30:24:24.4 |
HIP 38364 |
7.45 |
| 2026-06-13 12:00 |
07:51:58.23 |
+30:23:15.3 |
HIP 38364 |
10.48 |
| 2026-06-14 00:00 |
07:52:29.64 |
+30:22:05.9 |
HIP 38480 |
13.03 |
| 2026-06-14 12:00 |
07:53:01.15 |
+30:20:56.1 |
HIP 38480 |
11.14 |
| 2026-06-15 00:00 |
07:53:32.76 |
+30:19:46.1 |
HIP 38480 |
13.20 |
| 2026-06-15 12:00 |
07:54:04.46 |
+30:18:35.7 |
HIP 38643 |
9.15 |
| 2026-06-16 00:00 |
07:54:36.25 |
+30:17:25.0 |
HIP 38643 |
3.73 |
| 2026-06-16 12:00 |
07:55:08.13 |
+30:16:13.9 |
HIP 38643 |
6.43 |
| 2026-06-17 00:00 |
07:55:40.10 |
+30:15:02.6 |
HIP 38643 |
12.91 |
| 2026-06-17 12:00 |
07:56:12.16 |
+30:13:50.9 |
HIP 38643 |
19.78 |
| 2026-06-18 00:00 |
07:56:44.31 |
+30:12:38.9 |
HIP 38778 |
22.41 |
| 2026-06-18 12:00 |
07:57:16.55 |
+30:11:26.6 |
HIP 38778 |
24.24 |
| 2026-06-19 00:00 |
07:57:48.88 |
+30:10:14.0 |
HIP 39047 |
25.71 |
| 2026-06-19 12:00 |
07:58:21.29 |
+30:09:01.0 |
HIP 39047 |
21.89 |
| 2026-06-20 00:00 |
07:58:53.78 |
+30:07:47.7 |
HIP 39047 |
19.94 |
| 2026-06-20 12:00 |
07:59:26.36 |
+30:06:34.1 |
HIP 39047 |
20.45 |
| 2026-06-21 00:00 |
07:59:59.02 |
+30:05:20.2 |
HIP 39200 |
17.78 |
| 2026-06-21 12:00 |
08:00:31.77 |
+30:04:06.0 |
HIP 39200 |
13.61 |
| 2026-06-22 00:00 |
08:01:04.59 |
+30:02:51.5 |
HIP 39200 |
12.56 |