메타데이터
| 항목 |
값 |
| Designation |
514P/Lemmon-PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2025-11-23T16:24:19.644480Z |
| Orbit solution date (soln_date, UTC) |
2026-03-14T17:50:16Z |
| Obs used |
172 |
| NEO |
- |
| M1 |
7.500 |
| K1 |
22.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2025-09-19T07:05:17.376000Z |
| Discovery magnitude (MPC) |
19.90 G |
| Discovery observatory (MPC) |
W62 · Comet Hunter Observatory2, New Ringgold |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-06-01.0000000 |
| e |
0.35903203 |
| q (au) |
2.918667 |
| a (au) |
4.553530 |
| i (deg) |
6.499970 |
| Ω (om, deg) |
321.641424 |
| ω (w, deg) |
89.136768 |
| M (ma, deg) |
231.008591 |
밝기
산란 + 전체 선형
$$
M_a = (13.698 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.698 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.735 |
| k |
0.800 |
| 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) |
| 2026-06-01 00:00 |
05:48:19.86 |
+27:09:38.4 |
HIP 27456 |
13.80 |
| 2026-06-01 12:00 |
05:49:11.59 |
+27:09:25.4 |
HIP 27527 |
7.87 |
| 2026-06-02 00:00 |
05:50:03.31 |
+27:09:11.5 |
HIP 27527 |
4.34 |
| 2026-06-02 12:00 |
05:50:55.03 |
+27:08:56.6 |
HIP 27562 |
14.58 |
| 2026-06-03 00:00 |
05:51:46.74 |
+27:08:40.8 |
HIP 27817 |
19.36 |
| 2026-06-03 12:00 |
05:52:38.45 |
+27:08:24.1 |
HIP 27817 |
8.97 |
| 2026-06-04 00:00 |
05:53:30.14 |
+27:08:06.5 |
HIP 27817 |
7.13 |
| 2026-06-04 12:00 |
05:54:21.83 |
+27:07:47.9 |
HIP 27982 |
15.77 |
| 2026-06-05 00:00 |
05:55:13.52 |
+27:07:28.5 |
HIP 27982 |
13.24 |
| 2026-06-05 12:00 |
05:56:05.19 |
+27:07:08.0 |
HIP 28164 |
17.91 |
| 2026-06-06 00:00 |
05:56:56.86 |
+27:06:46.7 |
HIP 28164 |
12.38 |
| 2026-06-06 12:00 |
05:57:48.51 |
+27:06:24.4 |
HIP 28164 |
15.81 |
| 2026-06-07 00:00 |
05:58:40.15 |
+27:06:01.2 |
HIP 28276 |
17.58 |
| 2026-06-07 12:00 |
05:59:31.79 |
+27:05:37.1 |
HIP 28417 |
13.16 |
| 2026-06-08 00:00 |
06:00:23.41 |
+27:05:12.0 |
HIP 28417 |
11.79 |
| 2026-06-08 12:00 |
06:01:15.02 |
+27:04:46.0 |
HIP 28528 |
12.15 |
| 2026-06-09 00:00 |
06:02:06.61 |
+27:04:19.1 |
HIP 28584 |
8.12 |
| 2026-06-09 12:00 |
06:02:58.19 |
+27:03:51.2 |
HIP 28584 |
14.86 |
| 2026-06-10 00:00 |
06:03:49.76 |
+27:03:22.4 |
HIP 28584 |
25.29 |
| 2026-06-10 12:00 |
06:04:41.31 |
+27:02:52.7 |
HIP 28939 |
23.96 |
| 2026-06-11 00:00 |
06:05:32.85 |
+27:02:22.1 |
HIP 28939 |
12.52 |
| 2026-06-11 12:00 |
06:06:24.37 |
+27:01:50.5 |
HIP 28939 |
1.80 |
| 2026-06-12 00:00 |
06:07:15.88 |
+27:01:18.0 |
HIP 28939 |
10.66 |
| 2026-06-12 12:00 |
06:08:07.36 |
+27:00:44.5 |
HIP 29188 |
20.72 |
| 2026-06-13 00:00 |
06:08:58.83 |
+27:00:10.2 |
HIP 29188 |
13.02 |
| 2026-06-13 12:00 |
06:09:50.28 |
+26:59:34.9 |
HIP 29188 |
13.16 |
| 2026-06-14 00:00 |
06:10:41.71 |
+26:58:58.6 |
HIP 29188 |
20.98 |
| 2026-06-14 12:00 |
06:11:33.12 |
+26:58:21.5 |
HIP 29390 |
30.86 |
| 2026-06-15 00:00 |
06:12:24.50 |
+26:57:43.4 |
HIP 29510 |
29.31 |
| 2026-06-15 12:00 |
06:13:15.86 |
+26:57:04.4 |
HIP 29510 |
29.04 |
| 2026-06-16 00:00 |
06:14:07.20 |
+26:56:24.5 |
HIP 29510 |
33.01 |
| 2026-06-16 12:00 |
06:14:58.52 |
+26:55:43.7 |
HIP 29826 |
36.27 |
| 2026-06-17 00:00 |
06:15:49.81 |
+26:55:01.9 |
HIP 29826 |
28.89 |
| 2026-06-17 12:00 |
06:16:41.07 |
+26:54:19.2 |
HIP 29866 |
24.69 |
| 2026-06-18 00:00 |
06:17:32.30 |
+26:53:35.7 |
HIP 29955 |
21.87 |
| 2026-06-18 12:00 |
06:18:23.51 |
+26:52:51.1 |
HIP 29955 |
19.78 |
| 2026-06-19 00:00 |
06:19:14.69 |
+26:52:05.7 |
HIP 29955 |
23.78 |
| 2026-06-19 12:00 |
06:20:05.84 |
+26:51:19.4 |
HIP 29955 |
31.64 |
| 2026-06-20 00:00 |
06:20:56.96 |
+26:50:32.1 |
HIP 30305 |
20.64 |
| 2026-06-20 12:00 |
06:21:48.05 |
+26:49:44.0 |
HIP 30305 |
9.75 |
| 2026-06-21 00:00 |
06:22:39.11 |
+26:48:54.9 |
HIP 30305 |
5.02 |
| 2026-06-21 12:00 |
06:23:30.13 |
+26:48:04.9 |
HIP 30305 |
14.70 |
| 2026-06-22 00:00 |
06:24:21.12 |
+26:47:14.1 |
HIP 30396 |
22.87 |