메타데이터
| 항목 |
값 |
| Designation |
C/2025 L2 (MAPS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-12-20T15:54:43.277760Z |
| Orbit solution date (soln_date, UTC) |
2026-09-08T09:12:17Z |
| Obs used |
382 |
| NEO |
- |
| M1 |
10.600 |
| 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) |
2025-09-02.0000000 |
| e |
0.99440166 |
| q (au) |
2.833647 |
| a (au) |
506.158359 |
| i (deg) |
86.582771 |
| Ω (om, deg) |
134.985031 |
| ω (w, deg) |
232.643007 |
| M (ma, deg) |
359.990509 |
밝기
산란 + 전체 선형
$$
M_a = (9.125 + 5.105\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.125 |
| n |
5.105 |
| 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) |
| 2026-09-20 00:00 |
08:29:55.14 |
-37:56:53.3 |
HIP 41531 |
24.16 |
| 2026-09-20 12:00 |
08:30:18.86 |
-37:58:18.9 |
HIP 41870 |
23.35 |
| 2026-09-21 00:00 |
08:30:42.36 |
-37:59:45.5 |
HIP 41870 |
19.07 |
| 2026-09-21 12:00 |
08:31:05.64 |
-38:01:13.2 |
HIP 41870 |
15.19 |
| 2026-09-22 00:00 |
08:31:28.70 |
-38:02:42.0 |
HIP 41870 |
12.06 |
| 2026-09-22 12:00 |
08:31:51.53 |
-38:04:11.7 |
HIP 41870 |
10.32 |
| 2026-09-23 00:00 |
08:32:14.14 |
-38:05:42.5 |
HIP 41932 |
9.26 |
| 2026-09-23 12:00 |
08:32:36.52 |
-38:07:14.2 |
HIP 41932 |
4.80 |
| 2026-09-24 00:00 |
08:32:58.68 |
-38:08:47.0 |
HIP 41932 |
1.92 |
| 2026-09-24 12:00 |
08:33:20.61 |
-38:10:20.7 |
HIP 41932 |
5.15 |
| 2026-09-25 00:00 |
08:33:42.31 |
-38:11:55.4 |
HIP 41932 |
9.52 |
| 2026-09-25 12:00 |
08:34:03.79 |
-38:13:31.0 |
HIP 41970 |
12.26 |
| 2026-09-26 00:00 |
08:34:25.04 |
-38:15:07.6 |
HIP 41970 |
14.63 |
| 2026-09-26 12:00 |
08:34:46.06 |
-38:16:45.1 |
HIP 41970 |
17.77 |
| 2026-09-27 00:00 |
08:35:06.86 |
-38:18:23.5 |
HIP 42215 |
17.42 |
| 2026-09-27 12:00 |
08:35:27.42 |
-38:20:02.9 |
HIP 42215 |
13.13 |
| 2026-09-28 00:00 |
08:35:47.75 |
-38:21:43.1 |
HIP 42215 |
8.92 |
| 2026-09-28 12:00 |
08:36:07.85 |
-38:23:24.2 |
HIP 42215 |
4.94 |
| 2026-09-29 00:00 |
08:36:27.72 |
-38:25:06.1 |
HIP 42215 |
2.40 |
| 2026-09-29 12:00 |
08:36:47.36 |
-38:26:49.0 |
HIP 42215 |
4.77 |
| 2026-09-30 00:00 |
08:37:06.76 |
-38:28:32.6 |
HIP 42215 |
8.62 |
| 2026-09-30 12:00 |
08:37:25.93 |
-38:30:17.1 |
HIP 42215 |
12.63 |
| 2026-10-01 00:00 |
08:37:44.86 |
-38:32:02.5 |
HIP 42349 |
13.98 |
| 2026-10-01 12:00 |
08:38:03.56 |
-38:33:48.6 |
HIP 42349 |
11.78 |
| 2026-10-02 00:00 |
08:38:22.01 |
-38:35:35.5 |
HIP 42349 |
10.69 |
| 2026-10-02 12:00 |
08:38:40.24 |
-38:37:23.3 |
HIP 42349 |
11.01 |
| 2026-10-03 00:00 |
08:38:58.22 |
-38:39:11.8 |
HIP 42349 |
12.60 |
| 2026-10-03 12:00 |
08:39:15.96 |
-38:41:01.0 |
HIP 42349 |
15.02 |
| 2026-10-04 00:00 |
08:39:33.46 |
-38:42:51.0 |
HIP 42349 |
17.93 |
| 2026-10-04 12:00 |
08:39:50.72 |
-38:44:41.8 |
HIP 42349 |
21.10 |
| 2026-10-05 00:00 |
08:40:07.73 |
-38:46:33.2 |
HIP 42349 |
24.41 |
| 2026-10-05 12:00 |
08:40:24.50 |
-38:48:25.4 |
HIP 42611 |
25.74 |
| 2026-10-06 00:00 |
08:40:41.02 |
-38:50:18.2 |
HIP 42611 |
26.82 |
| 2026-10-06 12:00 |
08:40:57.30 |
-38:52:11.7 |
HIP 42808 |
27.44 |
| 2026-10-07 00:00 |
08:41:13.33 |
-38:54:05.8 |
HIP 42808 |
24.33 |
| 2026-10-07 12:00 |
08:41:29.11 |
-38:56:00.6 |
HIP 42808 |
21.45 |
| 2026-10-08 00:00 |
08:41:44.64 |
-38:57:56.1 |
HIP 42808 |
18.87 |
| 2026-10-08 12:00 |
08:41:59.92 |
-38:59:52.1 |
HIP 42808 |
16.71 |
| 2026-10-09 00:00 |
08:42:14.94 |
-39:01:48.7 |
HIP 42805 |
13.51 |
| 2026-10-09 12:00 |
08:42:29.72 |
-39:03:45.8 |
HIP 42805 |
10.07 |
| 2026-10-10 00:00 |
08:42:44.23 |
-39:05:43.6 |
HIP 42805 |
6.69 |
| 2026-10-10 12:00 |
08:42:58.50 |
-39:07:41.8 |
HIP 42805 |
3.48 |
| 2026-10-11 00:00 |
08:43:12.50 |
-39:09:40.6 |
HIP 42805 |
1.63 |