메타데이터
| 항목 |
값 |
| Designation |
C/2014 L5 (Lemmon) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2014-11-26T09:05:17.537280Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:55Z |
| Obs used |
75 |
| NEO |
- |
| M1 |
6.900 |
| K1 |
11.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2014-09-05.0000000 |
| e |
1.00264316 |
| q (au) |
6.203169 |
| a (au) |
-2346.877572 |
| i (deg) |
122.805134 |
| Ω (om, deg) |
35.683472 |
| ω (w, deg) |
45.611210 |
| M (ma, deg) |
-0.000714 |
밝기
산란 + 전체 선형
$$
M_a = (3.237 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
3.237 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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 |
15:10:22.79 |
-03:24:01.6 |
HIP 74292 |
14.53 |
| 2026-03-26 12:00 |
15:10:18.68 |
-03:23:41.1 |
HIP 74292 |
15.52 |
| 2026-03-27 00:00 |
15:10:14.54 |
-03:23:20.6 |
HIP 74292 |
16.52 |
| 2026-03-27 12:00 |
15:10:10.37 |
-03:23:00.1 |
HIP 74292 |
17.54 |
| 2026-03-28 00:00 |
15:10:06.17 |
-03:22:39.6 |
HIP 74292 |
18.58 |
| 2026-03-28 12:00 |
15:10:01.94 |
-03:22:19.2 |
HIP 74292 |
19.62 |
| 2026-03-29 00:00 |
15:09:57.67 |
-03:21:58.7 |
HIP 74292 |
20.68 |
| 2026-03-29 12:00 |
15:09:53.38 |
-03:21:38.2 |
HIP 74292 |
21.75 |
| 2026-03-30 00:00 |
15:09:49.06 |
-03:21:17.7 |
HIP 74292 |
22.84 |
| 2026-03-30 12:00 |
15:09:44.71 |
-03:20:57.2 |
HIP 74292 |
23.93 |
| 2026-03-31 00:00 |
15:09:40.33 |
-03:20:36.7 |
HIP 74292 |
25.03 |
| 2026-03-31 12:00 |
15:09:35.93 |
-03:20:16.3 |
HIP 74292 |
26.15 |
| 2026-04-01 00:00 |
15:09:31.49 |
-03:19:55.8 |
HIP 74292 |
27.27 |
| 2026-04-01 12:00 |
15:09:27.03 |
-03:19:35.4 |
HIP 74292 |
28.40 |
| 2026-04-02 00:00 |
15:09:22.54 |
-03:19:14.9 |
HIP 74123 |
28.64 |
| 2026-04-02 12:00 |
15:09:18.02 |
-03:18:54.5 |
HIP 74123 |
28.71 |
| 2026-04-03 00:00 |
15:09:13.48 |
-03:18:34.1 |
HIP 74123 |
28.83 |
| 2026-04-03 12:00 |
15:09:08.91 |
-03:18:13.8 |
HIP 74123 |
29.00 |
| 2026-04-04 00:00 |
15:09:04.31 |
-03:17:53.4 |
HIP 74123 |
29.21 |
| 2026-04-04 12:00 |
15:08:59.69 |
-03:17:33.1 |
HIP 74123 |
29.47 |
| 2026-04-05 00:00 |
15:08:55.04 |
-03:17:12.8 |
HIP 74123 |
29.77 |
| 2026-04-05 12:00 |
15:08:50.36 |
-03:16:52.6 |
HIP 74123 |
30.12 |
| 2026-04-06 00:00 |
15:08:45.66 |
-03:16:32.3 |
HIP 74123 |
30.52 |
| 2026-04-06 12:00 |
15:08:40.94 |
-03:16:12.1 |
HIP 74057 |
30.49 |
| 2026-04-07 00:00 |
15:08:36.19 |
-03:15:52.0 |
HIP 74057 |
30.50 |
| 2026-04-07 12:00 |
15:08:31.42 |
-03:15:31.9 |
HIP 74057 |
30.55 |
| 2026-04-08 00:00 |
15:08:26.62 |
-03:15:11.8 |
HIP 74057 |
30.65 |
| 2026-04-08 12:00 |
15:08:21.80 |
-03:14:51.7 |
HIP 74057 |
30.80 |
| 2026-04-09 00:00 |
15:08:16.96 |
-03:14:31.7 |
HIP 74057 |
31.00 |
| 2026-04-09 12:00 |
15:08:12.10 |
-03:14:11.8 |
HIP 74057 |
31.25 |
| 2026-04-10 00:00 |
15:08:07.21 |
-03:13:51.9 |
HIP 74057 |
31.54 |
| 2026-04-10 12:00 |
15:08:02.30 |
-03:13:32.0 |
HIP 74057 |
31.88 |
| 2026-04-11 00:00 |
15:07:57.37 |
-03:13:12.2 |
HIP 74057 |
32.27 |
| 2026-04-11 12:00 |
15:07:52.42 |
-03:12:52.5 |
HIP 74057 |
32.70 |
| 2026-04-12 00:00 |
15:07:47.44 |
-03:12:32.8 |
HIP 74057 |
33.17 |
| 2026-04-12 12:00 |
15:07:42.45 |
-03:12:13.2 |
HIP 74057 |
33.69 |
| 2026-04-13 00:00 |
15:07:37.44 |
-03:11:53.6 |
HIP 74057 |
34.25 |
| 2026-04-13 12:00 |
15:07:32.40 |
-03:11:34.1 |
HIP 74057 |
34.85 |
| 2026-04-14 00:00 |
15:07:27.35 |
-03:11:14.7 |
HIP 74057 |
35.48 |
| 2026-04-14 12:00 |
15:07:22.28 |
-03:10:55.4 |
HIP 74057 |
36.15 |
| 2026-04-15 00:00 |
15:07:17.19 |
-03:10:36.1 |
HIP 74057 |
36.86 |
| 2026-04-15 12:00 |
15:07:12.08 |
-03:10:16.9 |
HIP 74057 |
37.59 |
| 2026-04-16 00:00 |
15:07:06.95 |
-03:09:57.7 |
HIP 73912 |
38.13 |