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) |
| 2026-05-12 00:00 |
16:30:47.82 |
-21:50:24.6 |
HIP 80841 |
7.03 |
| 2026-05-12 12:00 |
16:30:32.26 |
-21:49:42.0 |
HIP 80841 |
5.18 |
| 2026-05-13 00:00 |
16:30:16.62 |
-21:48:59.0 |
HIP 80841 |
5.61 |
| 2026-05-13 12:00 |
16:30:00.90 |
-21:48:15.9 |
HIP 80841 |
7.99 |
| 2026-05-14 00:00 |
16:29:45.10 |
-21:47:32.4 |
HIP 80841 |
11.14 |
| 2026-05-14 12:00 |
16:29:29.22 |
-21:46:48.7 |
HIP 80756 |
12.87 |
| 2026-05-15 00:00 |
16:29:13.27 |
-21:46:04.7 |
HIP 80756 |
12.04 |
| 2026-05-15 12:00 |
16:28:57.24 |
-21:45:20.4 |
HIP 80756 |
12.36 |
| 2026-05-16 00:00 |
16:28:41.15 |
-21:44:35.9 |
HIP 80756 |
13.77 |
| 2026-05-16 12:00 |
16:28:25.00 |
-21:43:51.2 |
HIP 80756 |
15.99 |
| 2026-05-17 00:00 |
16:28:08.78 |
-21:43:06.2 |
HIP 80756 |
18.76 |
| 2026-05-17 12:00 |
16:27:52.50 |
-21:42:21.0 |
HIP 80534 |
19.95 |
| 2026-05-18 00:00 |
16:27:36.16 |
-21:41:35.5 |
HIP 80534 |
16.58 |
| 2026-05-18 12:00 |
16:27:19.78 |
-21:40:49.8 |
HIP 80534 |
13.49 |
| 2026-05-19 00:00 |
16:27:03.34 |
-21:40:03.9 |
HIP 80534 |
10.90 |
| 2026-05-19 12:00 |
16:26:46.85 |
-21:39:17.8 |
HIP 80534 |
9.27 |
| 2026-05-20 00:00 |
16:26:30.32 |
-21:38:31.4 |
HIP 80534 |
9.15 |
| 2026-05-20 12:00 |
16:26:13.74 |
-21:37:44.9 |
HIP 80534 |
10.59 |
| 2026-05-21 00:00 |
16:25:57.13 |
-21:36:58.2 |
HIP 80458 |
8.81 |
| 2026-05-21 12:00 |
16:25:40.47 |
-21:36:11.2 |
HIP 80458 |
6.38 |
| 2026-05-22 00:00 |
16:25:23.79 |
-21:35:24.1 |
HIP 80458 |
5.91 |
| 2026-05-22 12:00 |
16:25:07.07 |
-21:34:36.9 |
HIP 80458 |
7.78 |
| 2026-05-23 00:00 |
16:24:50.33 |
-21:33:49.4 |
HIP 80458 |
10.85 |
| 2026-05-23 12:00 |
16:24:33.56 |
-21:33:01.8 |
HIP 80458 |
14.37 |
| 2026-05-24 00:00 |
16:24:16.77 |
-21:32:14.0 |
HIP 80458 |
18.09 |
| 2026-05-24 12:00 |
16:23:59.96 |
-21:31:26.0 |
HIP 80276 |
18.35 |
| 2026-05-25 00:00 |
16:23:43.13 |
-21:30:37.9 |
HIP 80276 |
15.52 |
| 2026-05-25 12:00 |
16:23:26.29 |
-21:29:49.7 |
HIP 80276 |
13.30 |
| 2026-05-26 00:00 |
16:23:09.43 |
-21:29:01.3 |
HIP 80276 |
12.03 |
| 2026-05-26 12:00 |
16:22:52.57 |
-21:28:12.8 |
HIP 80276 |
12.03 |
| 2026-05-27 00:00 |
16:22:35.70 |
-21:27:24.2 |
HIP 80169 |
9.54 |
| 2026-05-27 12:00 |
16:22:18.83 |
-21:26:35.5 |
HIP 80169 |
5.91 |
| 2026-05-28 00:00 |
16:22:01.96 |
-21:25:46.6 |
HIP 80169 |
3.32 |
| 2026-05-28 12:00 |
16:21:45.08 |
-21:24:57.7 |
HIP 80169 |
4.40 |
| 2026-05-29 00:00 |
16:21:28.22 |
-21:24:08.6 |
HIP 80169 |
7.73 |
| 2026-05-29 12:00 |
16:21:11.36 |
-21:23:19.5 |
HIP 80169 |
11.50 |
| 2026-05-30 00:00 |
16:20:54.51 |
-21:22:30.3 |
HIP 80059 |
10.11 |
| 2026-05-30 12:00 |
16:20:37.67 |
-21:21:41.0 |
HIP 80059 |
9.13 |
| 2026-05-31 00:00 |
16:20:20.85 |
-21:20:51.6 |
HIP 80059 |
9.82 |
| 2026-05-31 12:00 |
16:20:04.04 |
-21:20:02.2 |
HIP 79977 |
9.12 |
| 2026-06-01 00:00 |
16:19:47.25 |
-21:19:12.7 |
HIP 79977 |
6.53 |
| 2026-06-01 12:00 |
16:19:30.49 |
-21:18:23.2 |
HIP 79977 |
5.84 |
| 2026-06-02 00:00 |
16:19:13.76 |
-21:17:33.6 |
HIP 79977 |
7.57 |