메타데이터
| 항목 |
값 |
| Designation |
C/2025 L2 (MAPS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-12-20T15:53:32.524800Z |
| Orbit solution date (soln_date, UTC) |
2026-03-21T13:42:22Z |
| Obs used |
364 |
| NEO |
- |
| M1 |
10.700 |
| K1 |
11.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2025-06-02T07:22:26.400000Z |
| Discovery magnitude (MPC) |
18.70 G |
| Discovery observatory (MPC) |
W94 · MAPS, San Pedro de Atacama |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2025-08-23.0000000 |
| e |
0.99440586 |
| q (au) |
2.833648 |
| a (au) |
506.538999 |
| i (deg) |
86.582488 |
| Ω (om, deg) |
134.984917 |
| ω (w, deg) |
232.642828 |
| M (ma, deg) |
359.989655 |
밝기
산란 + 전체 선형
$$
M_a = (9.145 + 5.124\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.145 |
| n |
5.124 |
| gf |
1.000 |
| gb |
-1.000 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
02:14:59.97 |
-56:47:34.9 |
HIP 10470 |
7.68 |
| 2026-03-26 12:00 |
02:16:45.08 |
-56:43:15.2 |
HIP 10470 |
18.85 |
| 2026-03-27 00:00 |
02:18:30.08 |
-56:38:53.3 |
HIP 10907 |
17.50 |
| 2026-03-27 12:00 |
02:20:14.95 |
-56:34:29.1 |
HIP 10907 |
12.61 |
| 2026-03-28 00:00 |
02:21:59.71 |
-56:30:02.8 |
HIP 11123 |
9.92 |
| 2026-03-28 12:00 |
02:23:44.33 |
-56:25:34.3 |
HIP 11123 |
8.61 |
| 2026-03-29 00:00 |
02:25:28.83 |
-56:21:03.6 |
HIP 11123 |
22.54 |
| 2026-03-29 12:00 |
02:27:13.19 |
-56:16:30.7 |
HIP 11531 |
15.56 |
| 2026-03-30 00:00 |
02:28:57.42 |
-56:11:55.7 |
HIP 11531 |
14.43 |
| 2026-03-30 12:00 |
02:30:41.50 |
-56:07:18.6 |
HIP 11880 |
24.38 |
| 2026-03-31 00:00 |
02:32:25.43 |
-56:02:39.3 |
HIP 11880 |
17.77 |
| 2026-03-31 12:00 |
02:34:09.22 |
-55:57:58.0 |
HIP 11880 |
22.34 |
| 2026-04-01 00:00 |
02:35:52.85 |
-55:53:14.5 |
HIP 12130 |
22.40 |
| 2026-04-01 12:00 |
02:37:36.33 |
-55:48:29.0 |
HIP 12130 |
20.96 |
| 2026-04-02 00:00 |
02:39:19.65 |
-55:43:41.4 |
HIP 12541 |
22.79 |
| 2026-04-02 12:00 |
02:41:02.81 |
-55:38:51.8 |
HIP 12541 |
19.90 |
| 2026-04-03 00:00 |
02:42:45.80 |
-55:34:00.2 |
HIP 12878 |
23.62 |
| 2026-04-03 12:00 |
02:44:28.62 |
-55:29:06.6 |
HIP 12878 |
9.71 |
| 2026-04-04 00:00 |
02:46:11.26 |
-55:24:11.0 |
HIP 12878 |
10.07 |
| 2026-04-04 12:00 |
02:47:53.74 |
-55:19:13.5 |
HIP 13203 |
20.55 |
| 2026-04-05 00:00 |
02:49:36.03 |
-55:14:14.0 |
HIP 13203 |
6.67 |
| 2026-04-05 12:00 |
02:51:18.14 |
-55:09:12.7 |
HIP 13315 |
4.75 |
| 2026-04-06 00:00 |
02:53:00.07 |
-55:04:09.4 |
HIP 13315 |
14.07 |
| 2026-04-06 12:00 |
02:54:41.81 |
-54:59:04.3 |
HIP 13794 |
25.14 |
| 2026-04-07 00:00 |
02:56:23.36 |
-54:53:57.4 |
HIP 13794 |
12.56 |
| 2026-04-07 12:00 |
02:58:04.71 |
-54:48:48.7 |
HIP 13886 |
6.41 |
| 2026-04-08 00:00 |
02:59:45.87 |
-54:43:38.2 |
HIP 13886 |
9.42 |
| 2026-04-08 12:00 |
03:01:26.83 |
-54:38:25.9 |
HIP 14163 |
22.00 |
| 2026-04-09 00:00 |
03:03:07.59 |
-54:33:11.9 |
HIP 14163 |
25.32 |
| 2026-04-09 12:00 |
03:04:48.14 |
-54:27:56.2 |
HIP 14163 |
35.72 |
| 2026-04-10 00:00 |
03:06:28.49 |
-54:22:38.8 |
HIP 14611 |
33.70 |
| 2026-04-10 12:00 |
03:08:08.62 |
-54:17:19.8 |
HIP 14611 |
22.73 |
| 2026-04-11 00:00 |
03:09:48.55 |
-54:11:59.1 |
HIP 14611 |
19.56 |
| 2026-04-11 12:00 |
03:11:28.25 |
-54:06:36.9 |
HIP 14706 |
23.13 |
| 2026-04-12 00:00 |
03:13:07.75 |
-54:01:13.1 |
HIP 14706 |
30.78 |
| 2026-04-12 12:00 |
03:14:47.02 |
-53:55:47.8 |
HIP 15166 |
42.29 |
| 2026-04-13 00:00 |
03:16:26.07 |
-53:50:21.0 |
HIP 15166 |
48.00 |
| 2026-04-13 12:00 |
03:18:04.89 |
-53:44:52.7 |
HIP 15618 |
46.85 |
| 2026-04-14 00:00 |
03:19:43.49 |
-53:39:23.0 |
HIP 15762 |
36.74 |
| 2026-04-14 12:00 |
03:21:21.86 |
-53:33:51.9 |
HIP 15613 |
30.69 |
| 2026-04-15 00:00 |
03:23:00.00 |
-53:28:19.4 |
HIP 15613 |
30.65 |
| 2026-04-15 12:00 |
03:24:37.90 |
-53:22:45.5 |
HIP 16039 |
21.68 |
| 2026-04-16 00:00 |
03:26:15.56 |
-53:17:10.4 |
HIP 16039 |
7.93 |