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) |
| 2026-03-26 00:00 |
07:00:33.90 |
+32:26:06.5 |
HIP 33801 |
6.69 |
| 2026-03-26 12:00 |
07:00:36.40 |
+32:25:43.3 |
HIP 33801 |
6.19 |
| 2026-03-27 00:00 |
07:00:39.17 |
+32:25:19.7 |
HIP 33801 |
5.67 |
| 2026-03-27 12:00 |
07:00:42.22 |
+32:24:55.7 |
HIP 33801 |
5.13 |
| 2026-03-28 00:00 |
07:00:45.55 |
+32:24:31.3 |
HIP 33801 |
4.61 |
| 2026-03-28 12:00 |
07:00:49.15 |
+32:24:06.5 |
HIP 33801 |
4.13 |
| 2026-03-29 00:00 |
07:00:53.03 |
+32:23:41.3 |
HIP 33801 |
3.75 |
| 2026-03-29 12:00 |
07:00:57.18 |
+32:23:15.8 |
HIP 33801 |
3.56 |
| 2026-03-30 00:00 |
07:01:01.60 |
+32:22:49.9 |
HIP 33801 |
3.61 |
| 2026-03-30 12:00 |
07:01:06.29 |
+32:22:23.6 |
HIP 33823 |
3.36 |
| 2026-03-31 00:00 |
07:01:11.25 |
+32:21:57.0 |
HIP 33823 |
3.17 |
| 2026-03-31 12:00 |
07:01:16.48 |
+32:21:30.0 |
HIP 33823 |
3.38 |
| 2026-04-01 00:00 |
07:01:21.98 |
+32:21:02.7 |
HIP 33823 |
3.97 |
| 2026-04-01 12:00 |
07:01:27.74 |
+32:20:35.0 |
HIP 33823 |
4.85 |
| 2026-04-02 00:00 |
07:01:33.77 |
+32:20:07.0 |
HIP 33823 |
5.93 |
| 2026-04-02 12:00 |
07:01:40.06 |
+32:19:38.6 |
HIP 33823 |
7.14 |
| 2026-04-03 00:00 |
07:01:46.61 |
+32:19:09.9 |
HIP 33823 |
8.47 |
| 2026-04-03 12:00 |
07:01:53.43 |
+32:18:40.9 |
HIP 33823 |
9.87 |
| 2026-04-04 00:00 |
07:02:00.50 |
+32:18:11.5 |
HIP 33823 |
11.36 |
| 2026-04-04 12:00 |
07:02:07.83 |
+32:17:41.8 |
HIP 33823 |
12.91 |
| 2026-04-05 00:00 |
07:02:15.42 |
+32:17:11.8 |
HIP 33823 |
14.53 |
| 2026-04-05 12:00 |
07:02:23.27 |
+32:16:41.5 |
HIP 33823 |
16.21 |
| 2026-04-06 00:00 |
07:02:31.37 |
+32:16:10.9 |
HIP 33823 |
17.95 |
| 2026-04-06 12:00 |
07:02:39.72 |
+32:15:39.9 |
HIP 33823 |
19.75 |
| 2026-04-07 00:00 |
07:02:48.33 |
+32:15:08.7 |
HIP 33823 |
21.60 |
| 2026-04-07 12:00 |
07:02:57.19 |
+32:14:37.1 |
HIP 33823 |
23.52 |
| 2026-04-08 00:00 |
07:03:06.30 |
+32:14:05.3 |
HIP 33823 |
25.48 |
| 2026-04-08 12:00 |
07:03:15.66 |
+32:13:33.1 |
HIP 33823 |
27.50 |
| 2026-04-09 00:00 |
07:03:25.27 |
+32:13:00.7 |
HIP 33823 |
29.58 |
| 2026-04-09 12:00 |
07:03:35.13 |
+32:12:27.9 |
HIP 33823 |
31.71 |
| 2026-04-10 00:00 |
07:03:45.23 |
+32:11:54.8 |
HIP 33823 |
33.89 |
| 2026-04-10 12:00 |
07:03:55.58 |
+32:11:21.5 |
HIP 33823 |
36.13 |
| 2026-04-11 00:00 |
07:04:06.17 |
+32:10:47.9 |
HIP 33823 |
38.42 |
| 2026-04-11 12:00 |
07:04:17.00 |
+32:10:14.0 |
HIP 34340 |
36.64 |
| 2026-04-12 00:00 |
07:04:28.07 |
+32:09:39.8 |
HIP 34340 |
34.25 |
| 2026-04-12 12:00 |
07:04:39.39 |
+32:09:05.3 |
HIP 34340 |
31.82 |
| 2026-04-13 00:00 |
07:04:50.94 |
+32:08:30.5 |
HIP 34340 |
29.34 |
| 2026-04-13 12:00 |
07:05:02.73 |
+32:07:55.5 |
HIP 34340 |
26.81 |
| 2026-04-14 00:00 |
07:05:14.76 |
+32:07:20.1 |
HIP 34340 |
24.25 |
| 2026-04-14 12:00 |
07:05:27.02 |
+32:06:44.5 |
HIP 34340 |
21.64 |
| 2026-04-15 00:00 |
07:05:39.52 |
+32:06:08.6 |
HIP 34340 |
19.00 |
| 2026-04-15 12:00 |
07:05:52.25 |
+32:05:32.5 |
HIP 34340 |
16.33 |
| 2026-04-16 00:00 |
07:06:05.21 |
+32:04:56.1 |
HIP 34340 |
13.65 |