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) |
| 2026-05-12 00:00 |
15:02:25.81 |
-02:55:56.3 |
HIP 73608 |
7.62 |
| 2026-05-12 12:00 |
15:02:20.32 |
-02:55:43.9 |
HIP 73608 |
8.69 |
| 2026-05-13 00:00 |
15:02:14.83 |
-02:55:31.7 |
HIP 73608 |
9.83 |
| 2026-05-13 12:00 |
15:02:09.34 |
-02:55:19.6 |
HIP 73608 |
11.03 |
| 2026-05-14 00:00 |
15:02:03.86 |
-02:55:07.8 |
HIP 73608 |
12.27 |
| 2026-05-14 12:00 |
15:01:58.38 |
-02:54:56.1 |
HIP 73608 |
13.53 |
| 2026-05-15 00:00 |
15:01:52.90 |
-02:54:44.6 |
HIP 73497 |
12.55 |
| 2026-05-15 12:00 |
15:01:47.44 |
-02:54:33.2 |
HIP 73497 |
11.55 |
| 2026-05-16 00:00 |
15:01:41.98 |
-02:54:22.1 |
HIP 73497 |
10.63 |
| 2026-05-16 12:00 |
15:01:36.52 |
-02:54:11.1 |
HIP 73497 |
9.82 |
| 2026-05-17 00:00 |
15:01:31.08 |
-02:54:00.3 |
HIP 73497 |
9.16 |
| 2026-05-17 12:00 |
15:01:25.64 |
-02:53:49.7 |
HIP 73497 |
8.66 |
| 2026-05-18 00:00 |
15:01:20.21 |
-02:53:39.3 |
HIP 73497 |
8.36 |
| 2026-05-18 12:00 |
15:01:14.78 |
-02:53:29.1 |
HIP 73497 |
8.29 |
| 2026-05-19 00:00 |
15:01:09.37 |
-02:53:19.1 |
HIP 73459 |
7.23 |
| 2026-05-19 12:00 |
15:01:03.97 |
-02:53:09.2 |
HIP 73459 |
6.28 |
| 2026-05-20 00:00 |
15:00:58.57 |
-02:52:59.6 |
HIP 73459 |
5.51 |
| 2026-05-20 12:00 |
15:00:53.19 |
-02:52:50.1 |
HIP 73459 |
4.99 |
| 2026-05-21 00:00 |
15:00:47.81 |
-02:52:40.8 |
HIP 73459 |
4.80 |
| 2026-05-21 12:00 |
15:00:42.45 |
-02:52:31.8 |
HIP 73459 |
4.98 |
| 2026-05-22 00:00 |
15:00:37.10 |
-02:52:22.9 |
HIP 73459 |
5.50 |
| 2026-05-22 12:00 |
15:00:31.76 |
-02:52:14.2 |
HIP 73459 |
6.26 |
| 2026-05-23 00:00 |
15:00:26.43 |
-02:52:05.8 |
HIP 73459 |
7.18 |
| 2026-05-23 12:00 |
15:00:21.11 |
-02:51:57.5 |
HIP 73459 |
8.22 |
| 2026-05-24 00:00 |
15:00:15.81 |
-02:51:49.4 |
HIP 73459 |
9.33 |
| 2026-05-24 12:00 |
15:00:10.52 |
-02:51:41.6 |
HIP 73459 |
10.48 |
| 2026-05-25 00:00 |
15:00:05.24 |
-02:51:33.9 |
HIP 73459 |
11.67 |
| 2026-05-25 12:00 |
14:59:59.98 |
-02:51:26.4 |
HIP 73459 |
12.88 |
| 2026-05-26 00:00 |
14:59:54.73 |
-02:51:19.2 |
HIP 73459 |
14.11 |
| 2026-05-26 12:00 |
14:59:49.50 |
-02:51:12.1 |
HIP 73459 |
15.34 |
| 2026-05-27 00:00 |
14:59:44.28 |
-02:51:05.2 |
HIP 73459 |
16.58 |
| 2026-05-27 12:00 |
14:59:39.08 |
-02:50:58.6 |
HIP 73358 |
17.62 |
| 2026-05-28 00:00 |
14:59:33.89 |
-02:50:52.2 |
HIP 73358 |
17.61 |
| 2026-05-28 12:00 |
14:59:28.71 |
-02:50:45.9 |
HIP 73358 |
17.69 |
| 2026-05-29 00:00 |
14:59:23.56 |
-02:50:39.9 |
HIP 73358 |
17.86 |
| 2026-05-29 12:00 |
14:59:18.42 |
-02:50:34.1 |
HIP 73358 |
18.12 |
| 2026-05-30 00:00 |
14:59:13.30 |
-02:50:28.5 |
HIP 73358 |
18.46 |
| 2026-05-30 12:00 |
14:59:08.19 |
-02:50:23.1 |
HIP 73358 |
18.87 |
| 2026-05-31 00:00 |
14:59:03.10 |
-02:50:17.9 |
HIP 73358 |
19.36 |
| 2026-05-31 12:00 |
14:58:58.03 |
-02:50:12.9 |
HIP 73358 |
19.91 |
| 2026-06-01 00:00 |
14:58:52.98 |
-02:50:08.1 |
HIP 73358 |
20.52 |
| 2026-06-01 12:00 |
14:58:47.95 |
-02:50:03.6 |
HIP 73358 |
21.19 |
| 2026-06-02 00:00 |
14:58:42.93 |
-02:49:59.2 |
HIP 73358 |
21.90 |