메타데이터
| 항목 |
값 |
| Designation |
348P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-06-23T02:38:18.427200Z |
| Orbit solution date (soln_date, UTC) |
2022-03-08T19:44:06Z |
| Obs used |
84 |
| NEO |
- |
| M1 |
17.600 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2018-03-29.0000000 |
| e |
0.30165714 |
| q (au) |
2.213010 |
| a (au) |
3.168945 |
| i (deg) |
17.566297 |
| Ω (om, deg) |
313.555846 |
| ω (w, deg) |
134.165093 |
| M (ma, deg) |
112.497751 |
밝기
산란 + 전체 선형
$$
M_a = (14.635 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.635 |
| n |
6.000 |
| gf |
0.962 |
| gb |
-0.862 |
| k |
0.980 |
| δ90 |
1.000 |
| 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 |
22:05:43.37 |
-09:31:48.9 |
HIP 109058 |
22.11 |
| 2026-03-26 12:00 |
22:06:16.08 |
-09:27:36.8 |
HIP 109058 |
28.10 |
| 2026-03-27 00:00 |
22:06:48.72 |
-09:23:24.5 |
HIP 109058 |
35.42 |
| 2026-03-27 12:00 |
22:07:21.31 |
-09:19:12.0 |
HIP 109142 |
37.57 |
| 2026-03-28 00:00 |
22:07:53.83 |
-09:14:59.3 |
HIP 109380 |
36.00 |
| 2026-03-28 12:00 |
22:08:26.29 |
-09:10:46.3 |
HIP 109380 |
27.72 |
| 2026-03-29 00:00 |
22:08:58.68 |
-09:06:33.2 |
HIP 109380 |
20.12 |
| 2026-03-29 12:00 |
22:09:31.01 |
-09:02:19.9 |
HIP 109380 |
14.30 |
| 2026-03-30 00:00 |
22:10:03.28 |
-08:58:06.4 |
HIP 109380 |
12.93 |
| 2026-03-30 12:00 |
22:10:35.49 |
-08:53:52.6 |
HIP 109380 |
17.09 |
| 2026-03-31 00:00 |
22:11:07.62 |
-08:49:38.7 |
HIP 109380 |
24.05 |
| 2026-03-31 12:00 |
22:11:39.70 |
-08:45:24.6 |
HIP 109380 |
32.03 |
| 2026-04-01 00:00 |
22:12:11.71 |
-08:41:10.3 |
HIP 109801 |
32.89 |
| 2026-04-01 12:00 |
22:12:43.65 |
-08:36:55.9 |
HIP 109801 |
25.98 |
| 2026-04-02 00:00 |
22:13:15.52 |
-08:32:41.2 |
HIP 109801 |
20.72 |
| 2026-04-02 12:00 |
22:13:47.33 |
-08:28:26.4 |
HIP 109801 |
18.55 |
| 2026-04-03 00:00 |
22:14:19.07 |
-08:24:11.4 |
HIP 109899 |
18.55 |
| 2026-04-03 12:00 |
22:14:50.74 |
-08:19:56.2 |
HIP 109899 |
11.41 |
| 2026-04-04 00:00 |
22:15:22.34 |
-08:15:40.8 |
HIP 109899 |
8.68 |
| 2026-04-04 12:00 |
22:15:53.87 |
-08:11:25.3 |
HIP 109899 |
13.38 |
| 2026-04-05 00:00 |
22:16:25.34 |
-08:07:09.7 |
HIP 109869 |
19.20 |
| 2026-04-05 12:00 |
22:16:56.73 |
-08:02:53.8 |
HIP 110003 |
15.99 |
| 2026-04-06 00:00 |
22:17:28.05 |
-07:58:37.8 |
HIP 110003 |
14.98 |
| 2026-04-06 12:00 |
22:17:59.30 |
-07:54:21.7 |
HIP 110003 |
18.69 |
| 2026-04-07 00:00 |
22:18:30.48 |
-07:50:05.4 |
HIP 110079 |
17.81 |
| 2026-04-07 12:00 |
22:19:01.59 |
-07:45:48.9 |
HIP 110273 |
17.76 |
| 2026-04-08 00:00 |
22:19:32.62 |
-07:41:32.3 |
HIP 110273 |
12.43 |
| 2026-04-08 12:00 |
22:20:03.57 |
-07:37:15.6 |
HIP 110273 |
12.18 |
| 2026-04-09 00:00 |
22:20:34.46 |
-07:32:58.8 |
HIP 110396 |
17.06 |
| 2026-04-09 12:00 |
22:21:05.26 |
-07:28:41.8 |
HIP 110396 |
11.96 |
| 2026-04-10 00:00 |
22:21:36.00 |
-07:24:24.7 |
HIP 110396 |
12.17 |
| 2026-04-10 12:00 |
22:22:06.65 |
-07:20:07.4 |
HIP 110396 |
17.50 |
| 2026-04-11 00:00 |
22:22:37.23 |
-07:15:50.1 |
HIP 110532 |
14.25 |
| 2026-04-11 12:00 |
22:23:07.73 |
-07:11:32.6 |
HIP 110532 |
6.06 |
| 2026-04-12 00:00 |
22:23:38.15 |
-07:07:15.0 |
HIP 110532 |
4.66 |
| 2026-04-12 12:00 |
22:24:08.49 |
-07:02:57.3 |
HIP 110532 |
12.53 |
| 2026-04-13 00:00 |
22:24:38.75 |
-06:58:39.5 |
HIP 110532 |
21.03 |
| 2026-04-13 12:00 |
22:25:08.92 |
-06:54:21.6 |
HIP 110532 |
29.60 |
| 2026-04-14 00:00 |
22:25:39.02 |
-06:50:03.7 |
HIP 110780 |
35.39 |
| 2026-04-14 12:00 |
22:26:09.03 |
-06:45:45.6 |
HIP 110780 |
37.43 |
| 2026-04-15 00:00 |
22:26:38.96 |
-06:41:27.5 |
HIP 110780 |
41.20 |
| 2026-04-15 12:00 |
22:27:08.81 |
-06:37:09.2 |
HIP 111014 |
42.71 |
| 2026-04-16 00:00 |
22:27:38.57 |
-06:32:50.9 |
HIP 110891 |
36.90 |