메타데이터
| 항목 |
값 |
| Designation |
437P/Lemmon-PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2012-11-24T04:41:12.096960Z |
| Orbit solution date (soln_date, UTC) |
2023-01-21T03:13:43Z |
| Obs used |
106 |
| NEO |
- |
| M1 |
7.700 |
| K1 |
20.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2011-10-24T06:09:06.048000Z |
| Discovery magnitude (MPC) |
20.90 V |
| Discovery observatory (MPC) |
G96 · Mt. Lemmon Survey |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2017-09-29.0000000 |
| e |
0.25225853 |
| q (au) |
3.409730 |
| a (au) |
4.560038 |
| i (deg) |
3.690020 |
| Ω (om, deg) |
245.898008 |
| ω (w, deg) |
206.625064 |
| M (ma, deg) |
179.133437 |
밝기
산란 + 전체 선형
$$
M_a = (10.237 + 5.762\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.237 |
| n |
5.762 |
| gf |
0.993 |
| gb |
-0.976 |
| 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 |
16:44:25.87 |
-22:30:40.2 |
HIP 81941 |
2.03 |
| 2026-03-26 12:00 |
16:44:25.68 |
-22:30:32.3 |
HIP 81941 |
2.04 |
| 2026-03-27 00:00 |
16:44:25.28 |
-22:30:24.1 |
HIP 81941 |
2.03 |
| 2026-03-27 12:00 |
16:44:24.69 |
-22:30:15.5 |
HIP 81941 |
1.99 |
| 2026-03-28 00:00 |
16:44:23.90 |
-22:30:06.5 |
HIP 81941 |
1.94 |
| 2026-03-28 12:00 |
16:44:22.91 |
-22:29:57.1 |
HIP 81941 |
1.90 |
| 2026-03-29 00:00 |
16:44:21.71 |
-22:29:47.3 |
HIP 81941 |
1.87 |
| 2026-03-29 12:00 |
16:44:20.32 |
-22:29:37.2 |
HIP 81941 |
1.89 |
| 2026-03-30 00:00 |
16:44:18.73 |
-22:29:26.6 |
HIP 81941 |
1.98 |
| 2026-03-30 12:00 |
16:44:16.94 |
-22:29:15.7 |
HIP 81941 |
2.16 |
| 2026-03-31 00:00 |
16:44:14.95 |
-22:29:04.4 |
HIP 81941 |
2.42 |
| 2026-03-31 12:00 |
16:44:12.76 |
-22:28:52.7 |
HIP 81941 |
2.78 |
| 2026-04-01 00:00 |
16:44:10.37 |
-22:28:40.6 |
HIP 81941 |
3.21 |
| 2026-04-01 12:00 |
16:44:07.78 |
-22:28:28.1 |
HIP 81941 |
3.72 |
| 2026-04-02 00:00 |
16:44:05.00 |
-22:28:15.3 |
HIP 81941 |
4.31 |
| 2026-04-02 12:00 |
16:44:02.01 |
-22:28:02.0 |
HIP 81941 |
4.95 |
| 2026-04-03 00:00 |
16:43:58.83 |
-22:27:48.4 |
HIP 81941 |
5.65 |
| 2026-04-03 12:00 |
16:43:55.45 |
-22:27:34.4 |
HIP 81941 |
6.41 |
| 2026-04-04 00:00 |
16:43:51.87 |
-22:27:19.9 |
HIP 81941 |
7.22 |
| 2026-04-04 12:00 |
16:43:48.10 |
-22:27:05.1 |
HIP 81941 |
8.09 |
| 2026-04-05 00:00 |
16:43:44.12 |
-22:26:49.9 |
HIP 81941 |
9.00 |
| 2026-04-05 12:00 |
16:43:39.96 |
-22:26:34.3 |
HIP 81860 |
9.15 |
| 2026-04-06 00:00 |
16:43:35.59 |
-22:26:18.4 |
HIP 81860 |
8.22 |
| 2026-04-06 12:00 |
16:43:31.03 |
-22:26:02.0 |
HIP 81860 |
7.29 |
| 2026-04-07 00:00 |
16:43:26.27 |
-22:25:45.2 |
HIP 81860 |
6.36 |
| 2026-04-07 12:00 |
16:43:21.32 |
-22:25:28.1 |
HIP 81860 |
5.50 |
| 2026-04-08 00:00 |
16:43:16.17 |
-22:25:10.5 |
HIP 81860 |
4.74 |
| 2026-04-08 12:00 |
16:43:10.83 |
-22:24:52.6 |
HIP 81860 |
4.21 |
| 2026-04-09 00:00 |
16:43:05.29 |
-22:24:34.2 |
HIP 81860 |
4.02 |
| 2026-04-09 12:00 |
16:42:59.56 |
-22:24:15.5 |
HIP 81860 |
4.27 |
| 2026-04-10 00:00 |
16:42:53.64 |
-22:23:56.4 |
HIP 81860 |
4.93 |
| 2026-04-10 12:00 |
16:42:47.52 |
-22:23:36.8 |
HIP 81860 |
5.90 |
| 2026-04-11 00:00 |
16:42:41.22 |
-22:23:16.9 |
HIP 81860 |
7.07 |
| 2026-04-11 12:00 |
16:42:34.72 |
-22:22:56.6 |
HIP 81860 |
8.39 |
| 2026-04-12 00:00 |
16:42:28.03 |
-22:22:35.9 |
HIP 81860 |
9.81 |
| 2026-04-12 12:00 |
16:42:21.16 |
-22:22:14.8 |
HIP 81860 |
11.32 |
| 2026-04-13 00:00 |
16:42:14.09 |
-22:21:53.3 |
HIP 81860 |
12.90 |
| 2026-04-13 12:00 |
16:42:06.84 |
-22:21:31.4 |
HIP 81860 |
14.55 |
| 2026-04-14 00:00 |
16:41:59.39 |
-22:21:09.1 |
HIP 81860 |
16.25 |
| 2026-04-14 12:00 |
16:41:51.77 |
-22:20:46.5 |
HIP 81860 |
18.01 |
| 2026-04-15 00:00 |
16:41:43.95 |
-22:20:23.4 |
HIP 81860 |
19.82 |
| 2026-04-15 12:00 |
16:41:35.96 |
-22:20:00.0 |
HIP 81860 |
21.68 |
| 2026-04-16 00:00 |
16:41:27.78 |
-22:19:36.1 |
HIP 81860 |
23.58 |