메타데이터
| 항목 |
값 |
| Designation |
363P/Lemmon |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2018-03-22T13:30:17.461440Z |
| Orbit solution date (soln_date, UTC) |
2025-04-11T14:45:16Z |
| Obs used |
124 |
| NEO |
- |
| M1 |
17.300 |
| K1 |
12.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2015-09-25.0000000 |
| e |
0.55752671 |
| q (au) |
1.506711 |
| a (au) |
3.405202 |
| i (deg) |
3.974829 |
| Ω (om, deg) |
169.924921 |
| ω (w, deg) |
315.265579 |
| M (ma, deg) |
217.333360 |
밝기
산란 + 전체 선형
$$
M_a = (16.388 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.388 |
| 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) |
| 2026-03-26 00:00 |
18:12:38.97 |
-18:10:26.7 |
HIP 89158 |
17.55 |
| 2026-03-26 12:00 |
18:12:49.17 |
-18:09:51.8 |
HIP 89158 |
19.71 |
| 2026-03-27 00:00 |
18:12:59.12 |
-18:09:16.8 |
HIP 89384 |
20.52 |
| 2026-03-27 12:00 |
18:13:08.82 |
-18:08:41.9 |
HIP 89384 |
18.22 |
| 2026-03-28 00:00 |
18:13:18.27 |
-18:08:06.9 |
HIP 89384 |
16.00 |
| 2026-03-28 12:00 |
18:13:27.47 |
-18:07:31.9 |
HIP 89384 |
13.87 |
| 2026-03-29 00:00 |
18:13:36.41 |
-18:06:57.0 |
HIP 89384 |
11.85 |
| 2026-03-29 12:00 |
18:13:45.10 |
-18:06:22.0 |
HIP 89384 |
9.97 |
| 2026-03-30 00:00 |
18:13:53.54 |
-18:05:47.0 |
HIP 89384 |
8.27 |
| 2026-03-30 12:00 |
18:14:01.72 |
-18:05:12.0 |
HIP 89384 |
6.84 |
| 2026-03-31 00:00 |
18:14:09.64 |
-18:04:37.0 |
HIP 89384 |
5.82 |
| 2026-03-31 12:00 |
18:14:17.31 |
-18:04:02.1 |
HIP 89384 |
5.38 |
| 2026-04-01 00:00 |
18:14:24.72 |
-18:03:27.1 |
HIP 89384 |
5.61 |
| 2026-04-01 12:00 |
18:14:31.87 |
-18:02:52.2 |
HIP 89384 |
6.37 |
| 2026-04-02 00:00 |
18:14:38.76 |
-18:02:17.3 |
HIP 89384 |
7.47 |
| 2026-04-02 12:00 |
18:14:45.40 |
-18:01:42.5 |
HIP 89384 |
8.74 |
| 2026-04-03 00:00 |
18:14:51.77 |
-18:01:07.7 |
HIP 89384 |
10.09 |
| 2026-04-03 12:00 |
18:14:57.88 |
-18:00:32.9 |
HIP 89384 |
11.47 |
| 2026-04-04 00:00 |
18:15:03.73 |
-17:59:58.2 |
HIP 89384 |
12.85 |
| 2026-04-04 12:00 |
18:15:09.32 |
-17:59:23.5 |
HIP 89384 |
14.21 |
| 2026-04-05 00:00 |
18:15:14.64 |
-17:58:48.9 |
HIP 89384 |
15.54 |
| 2026-04-05 12:00 |
18:15:19.70 |
-17:58:14.4 |
HIP 89384 |
16.82 |
| 2026-04-06 00:00 |
18:15:24.50 |
-17:57:39.9 |
HIP 89384 |
18.07 |
| 2026-04-06 12:00 |
18:15:29.03 |
-17:57:05.6 |
HIP 89384 |
19.27 |
| 2026-04-07 00:00 |
18:15:33.29 |
-17:56:31.2 |
HIP 89384 |
20.42 |
| 2026-04-07 12:00 |
18:15:37.28 |
-17:55:57.0 |
HIP 89511 |
20.08 |
| 2026-04-08 00:00 |
18:15:41.01 |
-17:55:22.9 |
HIP 89511 |
19.33 |
| 2026-04-08 12:00 |
18:15:44.47 |
-17:54:48.8 |
HIP 89511 |
18.62 |
| 2026-04-09 00:00 |
18:15:47.66 |
-17:54:14.9 |
HIP 89511 |
17.94 |
| 2026-04-09 12:00 |
18:15:50.57 |
-17:53:41.0 |
HIP 89511 |
17.30 |
| 2026-04-10 00:00 |
18:15:53.22 |
-17:53:07.3 |
HIP 89511 |
16.68 |
| 2026-04-10 12:00 |
18:15:55.60 |
-17:52:33.7 |
HIP 89511 |
16.10 |
| 2026-04-11 00:00 |
18:15:57.70 |
-17:52:00.2 |
HIP 89511 |
15.53 |
| 2026-04-11 12:00 |
18:15:59.54 |
-17:51:26.8 |
HIP 89511 |
14.98 |
| 2026-04-12 00:00 |
18:16:01.10 |
-17:50:53.5 |
HIP 89511 |
14.44 |
| 2026-04-12 12:00 |
18:16:02.38 |
-17:50:20.4 |
HIP 89511 |
13.91 |
| 2026-04-13 00:00 |
18:16:03.39 |
-17:49:47.4 |
HIP 89511 |
13.38 |
| 2026-04-13 12:00 |
18:16:04.13 |
-17:49:14.5 |
HIP 89511 |
12.85 |
| 2026-04-14 00:00 |
18:16:04.59 |
-17:48:41.8 |
HIP 89511 |
12.33 |
| 2026-04-14 12:00 |
18:16:04.78 |
-17:48:09.3 |
HIP 89511 |
11.79 |
| 2026-04-15 00:00 |
18:16:04.69 |
-17:47:36.9 |
HIP 89511 |
11.26 |
| 2026-04-15 12:00 |
18:16:04.33 |
-17:47:04.6 |
HIP 89511 |
10.71 |
| 2026-04-16 00:00 |
18:16:03.69 |
-17:46:32.6 |
HIP 89511 |
10.16 |