메타데이터
| 항목 |
값 |
| Designation |
C/2025 M3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2026-07-23T06:23:26.626560Z |
| Orbit solution date (soln_date, UTC) |
2026-06-18T16:12:20Z |
| Obs used |
34 |
| NEO |
- |
| M1 |
13.400 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2025-06-30T08:56:42.921600Z |
| Discovery magnitude (MPC) |
21.35 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2025-10-07.0000000 |
| e |
0.99964607 |
| q (au) |
6.471304 |
| a (au) |
18283.904807 |
| i (deg) |
137.223220 |
| Ω (om, deg) |
65.355111 |
| ω (w, deg) |
197.024136 |
| M (ma, deg) |
359.999885 |
밝기
산란 + 전체 선형
$$
M_a = (12.286 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.286 |
| n |
2.000 |
| gf |
0.811 |
| gb |
-0.973 |
| k |
1.000 |
| δ90 |
4.179 |
| 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) |
| 2026-09-25 00:00 |
14:22:09.54 |
-28:17:07.8 |
HIP 70225 |
2.22 |
| 2026-09-25 12:00 |
14:22:14.23 |
-28:18:21.9 |
HIP 70225 |
2.78 |
| 2026-09-26 00:00 |
14:22:19.00 |
-28:19:36.7 |
HIP 70225 |
3.98 |
| 2026-09-26 12:00 |
14:22:23.85 |
-28:20:52.2 |
HIP 70225 |
5.43 |
| 2026-09-27 00:00 |
14:22:28.78 |
-28:22:08.3 |
HIP 70225 |
6.99 |
| 2026-09-27 12:00 |
14:22:33.78 |
-28:23:25.1 |
HIP 70225 |
8.61 |
| 2026-09-28 00:00 |
14:22:38.87 |
-28:24:42.5 |
HIP 70225 |
10.27 |
| 2026-09-28 12:00 |
14:22:44.02 |
-28:26:00.5 |
HIP 70225 |
11.97 |
| 2026-09-29 00:00 |
14:22:49.26 |
-28:27:19.2 |
HIP 70225 |
13.69 |
| 2026-09-29 12:00 |
14:22:54.57 |
-28:28:38.6 |
HIP 70225 |
15.44 |
| 2026-09-30 00:00 |
14:22:59.95 |
-28:29:58.6 |
HIP 70225 |
17.20 |
| 2026-09-30 12:00 |
14:23:05.40 |
-28:31:19.3 |
HIP 70225 |
18.99 |
| 2026-10-01 00:00 |
14:23:10.93 |
-28:32:40.5 |
HIP 70225 |
20.81 |
| 2026-10-01 12:00 |
14:23:16.52 |
-28:34:02.5 |
HIP 70225 |
22.64 |
| 2026-10-02 00:00 |
14:23:22.19 |
-28:35:25.0 |
HIP 70225 |
24.48 |
| 2026-10-02 12:00 |
14:23:27.93 |
-28:36:48.2 |
HIP 70471 |
25.68 |
| 2026-10-03 00:00 |
14:23:33.73 |
-28:38:12.0 |
HIP 70471 |
23.79 |
| 2026-10-03 12:00 |
14:23:39.60 |
-28:39:36.5 |
HIP 70471 |
21.88 |
| 2026-10-04 00:00 |
14:23:45.53 |
-28:41:01.6 |
HIP 70471 |
19.96 |
| 2026-10-04 12:00 |
14:23:51.53 |
-28:42:27.3 |
HIP 70471 |
18.02 |
| 2026-10-05 00:00 |
14:23:57.60 |
-28:43:53.7 |
HIP 70471 |
16.06 |
| 2026-10-05 12:00 |
14:24:03.73 |
-28:45:20.6 |
HIP 70471 |
14.08 |
| 2026-10-06 00:00 |
14:24:09.92 |
-28:46:48.2 |
HIP 70471 |
12.09 |
| 2026-10-06 12:00 |
14:24:16.17 |
-28:48:16.4 |
HIP 70471 |
10.09 |
| 2026-10-07 00:00 |
14:24:22.48 |
-28:49:45.3 |
HIP 70471 |
8.06 |
| 2026-10-07 12:00 |
14:24:28.85 |
-28:51:14.7 |
HIP 70471 |
6.03 |
| 2026-10-08 00:00 |
14:24:35.28 |
-28:52:44.8 |
HIP 70471 |
3.98 |
| 2026-10-08 12:00 |
14:24:41.76 |
-28:54:15.5 |
HIP 70471 |
1.93 |
| 2026-10-09 00:00 |
14:24:48.30 |
-28:55:46.7 |
HIP 70471 |
0.50 |
| 2026-10-09 12:00 |
14:24:54.90 |
-28:57:18.6 |
HIP 70471 |
2.36 |
| 2026-10-10 00:00 |
14:25:01.55 |
-28:58:51.1 |
HIP 70471 |
4.46 |
| 2026-10-10 12:00 |
14:25:08.25 |
-29:00:24.2 |
HIP 70511 |
5.39 |
| 2026-10-11 00:00 |
14:25:15.00 |
-29:01:57.9 |
HIP 70511 |
3.24 |
| 2026-10-11 12:00 |
14:25:21.81 |
-29:03:32.2 |
HIP 70511 |
1.08 |
| 2026-10-12 00:00 |
14:25:28.66 |
-29:05:07.0 |
HIP 70511 |
1.11 |
| 2026-10-12 12:00 |
14:25:35.56 |
-29:06:42.5 |
HIP 70511 |
3.30 |
| 2026-10-13 00:00 |
14:25:42.51 |
-29:08:18.5 |
HIP 70511 |
5.50 |
| 2026-10-13 12:00 |
14:25:49.50 |
-29:09:55.2 |
HIP 70511 |
7.72 |
| 2026-10-14 00:00 |
14:25:56.54 |
-29:11:32.4 |
HIP 70511 |
9.96 |
| 2026-10-14 12:00 |
14:26:03.63 |
-29:13:10.2 |
HIP 70511 |
12.20 |
| 2026-10-15 00:00 |
14:26:10.75 |
-29:14:48.6 |
HIP 70511 |
14.46 |
| 2026-10-15 12:00 |
14:26:17.92 |
-29:16:27.5 |
HIP 70511 |
16.73 |
| 2026-10-16 00:00 |
14:26:25.13 |
-29:18:07.0 |
HIP 70511 |
19.02 |