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
$$
M_a = (14.642 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.642 |
| n |
2.000 |
| gf |
0.999 |
| 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) |
| 2026-05-12 00:00 |
07:22:02.95 |
+31:27:28.3 |
HIP 35637 |
13.91 |
| 2026-05-12 12:00 |
07:22:26.19 |
+31:26:38.3 |
HIP 35637 |
18.33 |
| 2026-05-13 00:00 |
07:22:49.60 |
+31:25:47.9 |
HIP 35637 |
23.04 |
| 2026-05-13 12:00 |
07:23:13.16 |
+31:24:57.3 |
HIP 35637 |
27.90 |
| 2026-05-14 00:00 |
07:23:36.88 |
+31:24:06.4 |
HIP 35637 |
32.87 |
| 2026-05-14 12:00 |
07:24:00.76 |
+31:23:15.2 |
HIP 35948 |
32.86 |
| 2026-05-15 00:00 |
07:24:24.80 |
+31:22:23.8 |
HIP 35948 |
31.14 |
| 2026-05-15 12:00 |
07:24:48.99 |
+31:21:32.1 |
HIP 36139 |
28.31 |
| 2026-05-16 00:00 |
07:25:13.34 |
+31:20:40.1 |
HIP 36139 |
24.73 |
| 2026-05-16 12:00 |
07:25:37.84 |
+31:19:47.8 |
HIP 36139 |
21.83 |
| 2026-05-17 00:00 |
07:26:02.49 |
+31:18:55.3 |
HIP 36139 |
19.92 |
| 2026-05-17 12:00 |
07:26:27.29 |
+31:18:02.4 |
HIP 36139 |
19.34 |
| 2026-05-18 00:00 |
07:26:52.24 |
+31:17:09.3 |
HIP 36139 |
20.23 |
| 2026-05-18 12:00 |
07:27:17.34 |
+31:16:15.9 |
HIP 36139 |
22.43 |
| 2026-05-19 00:00 |
07:27:42.58 |
+31:15:22.3 |
HIP 36383 |
20.43 |
| 2026-05-19 12:00 |
07:28:07.97 |
+31:14:28.3 |
HIP 36383 |
14.95 |
| 2026-05-20 00:00 |
07:28:33.50 |
+31:13:34.1 |
HIP 36383 |
9.48 |
| 2026-05-20 12:00 |
07:28:59.18 |
+31:12:39.6 |
HIP 36383 |
4.13 |
| 2026-05-21 00:00 |
07:29:25.00 |
+31:11:44.8 |
HIP 36383 |
2.50 |
| 2026-05-21 12:00 |
07:29:50.96 |
+31:10:49.7 |
HIP 36484 |
7.59 |
| 2026-05-22 00:00 |
07:30:17.05 |
+31:09:54.4 |
HIP 36484 |
2.09 |
| 2026-05-22 12:00 |
07:30:43.29 |
+31:08:58.7 |
HIP 36484 |
3.91 |
| 2026-05-23 00:00 |
07:31:09.66 |
+31:08:02.8 |
HIP 36484 |
9.57 |
| 2026-05-23 12:00 |
07:31:36.16 |
+31:07:06.6 |
HIP 36651 |
8.56 |
| 2026-05-24 00:00 |
07:32:02.80 |
+31:06:10.1 |
HIP 36651 |
2.80 |
| 2026-05-24 12:00 |
07:32:29.57 |
+31:05:13.3 |
HIP 36651 |
3.07 |
| 2026-05-25 00:00 |
07:32:56.48 |
+31:04:16.3 |
HIP 36651 |
8.89 |
| 2026-05-25 12:00 |
07:33:23.51 |
+31:03:18.9 |
HIP 36757 |
12.01 |
| 2026-05-26 00:00 |
07:33:50.67 |
+31:02:21.3 |
HIP 36757 |
11.36 |
| 2026-05-26 12:00 |
07:34:17.97 |
+31:01:23.3 |
HIP 36896 |
11.52 |
| 2026-05-27 00:00 |
07:34:45.39 |
+31:00:25.1 |
HIP 36896 |
5.73 |
| 2026-05-27 12:00 |
07:35:12.93 |
+30:59:26.6 |
HIP 36896 |
1.99 |
| 2026-05-28 00:00 |
07:35:40.60 |
+30:58:27.8 |
HIP 36896 |
6.86 |
| 2026-05-28 12:00 |
07:36:08.40 |
+30:57:28.7 |
HIP 37014 |
9.90 |
| 2026-05-29 00:00 |
07:36:36.32 |
+30:56:29.3 |
HIP 37014 |
10.27 |
| 2026-05-29 12:00 |
07:37:04.36 |
+30:55:29.6 |
HIP 37014 |
13.67 |
| 2026-05-30 00:00 |
07:37:32.52 |
+30:54:29.6 |
HIP 37176 |
16.22 |
| 2026-05-30 12:00 |
07:38:00.80 |
+30:53:29.3 |
HIP 37176 |
12.38 |
| 2026-05-31 00:00 |
07:38:29.21 |
+30:52:28.7 |
HIP 37176 |
10.93 |
| 2026-05-31 12:00 |
07:38:57.73 |
+30:51:27.8 |
HIP 37176 |
12.74 |
| 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 |