메타데이터
| 항목 |
값 |
| Designation |
C/2025 M3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2026-07-05T05:58:02.746560Z |
| Orbit solution date (soln_date, UTC) |
2025-09-09T12:42:48Z |
| Obs used |
24 |
| NEO |
- |
| M1 |
8.700 |
| K1 |
10.000 |
| 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) |
2025-07-02.0000000 |
| e |
1.01973837 |
| q (au) |
6.531641 |
| a (au) |
-330.910866 |
| i (deg) |
137.428013 |
| Ω (om, deg) |
65.265251 |
| ω (w, deg) |
195.386049 |
| M (ma, deg) |
-0.060295 |
밝기
산란 + 전체 선형
$$
M_a = (3.530 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
3.530 |
| n |
6.000 |
| gf |
0.989 |
| 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 |
15:36:00.19 |
-28:12:02.3 |
HIP 76470 |
14.07 |
| 2026-05-12 12:00 |
15:35:25.23 |
-28:12:19.3 |
HIP 76275 |
9.35 |
| 2026-05-13 00:00 |
15:34:50.24 |
-28:12:35.4 |
HIP 76275 |
4.77 |
| 2026-05-13 12:00 |
15:34:15.22 |
-28:12:50.3 |
HIP 76275 |
8.78 |
| 2026-05-14 00:00 |
15:33:40.17 |
-28:13:04.3 |
HIP 76109 |
13.54 |
| 2026-05-14 12:00 |
15:33:05.09 |
-28:13:17.3 |
HIP 76109 |
5.82 |
| 2026-05-15 00:00 |
15:32:29.99 |
-28:13:29.3 |
HIP 76109 |
1.98 |
| 2026-05-15 12:00 |
15:31:54.87 |
-28:13:40.2 |
HIP 76068 |
4.64 |
| 2026-05-16 00:00 |
15:31:19.73 |
-28:13:50.2 |
HIP 76068 |
11.24 |
| 2026-05-16 12:00 |
15:30:44.58 |
-28:13:59.2 |
HIP 76034 |
16.73 |
| 2026-05-17 00:00 |
15:30:09.43 |
-28:14:07.1 |
HIP 76034 |
23.22 |
| 2026-05-17 12:00 |
15:29:34.27 |
-28:14:14.1 |
HIP 76034 |
30.31 |
| 2026-05-18 00:00 |
15:28:59.12 |
-28:14:20.1 |
HIP 75821 |
32.53 |
| 2026-05-18 12:00 |
15:28:23.96 |
-28:14:25.2 |
HIP 75605 |
26.37 |
| 2026-05-19 00:00 |
15:27:48.82 |
-28:14:29.3 |
HIP 75605 |
20.82 |
| 2026-05-19 12:00 |
15:27:13.68 |
-28:14:32.4 |
HIP 75563 |
13.96 |
| 2026-05-20 00:00 |
15:26:38.56 |
-28:14:34.6 |
HIP 75563 |
6.93 |
| 2026-05-20 12:00 |
15:26:03.46 |
-28:14:35.8 |
HIP 75563 |
4.55 |
| 2026-05-21 00:00 |
15:25:28.39 |
-28:14:36.1 |
HIP 75563 |
10.63 |
| 2026-05-21 12:00 |
15:24:53.33 |
-28:14:35.4 |
HIP 75563 |
18.01 |
| 2026-05-22 00:00 |
15:24:18.31 |
-28:14:33.9 |
HIP 75343 |
19.03 |
| 2026-05-22 12:00 |
15:23:43.32 |
-28:14:31.4 |
HIP 75343 |
17.42 |
| 2026-05-23 00:00 |
15:23:08.37 |
-28:14:28.0 |
HIP 75343 |
19.05 |
| 2026-05-23 12:00 |
15:22:33.45 |
-28:14:23.7 |
HIP 75162 |
23.03 |
| 2026-05-24 00:00 |
15:21:58.58 |
-28:14:18.5 |
HIP 75077 |
19.41 |
| 2026-05-24 12:00 |
15:21:23.76 |
-28:14:12.5 |
HIP 75077 |
11.91 |
| 2026-05-25 00:00 |
15:20:48.98 |
-28:14:05.5 |
HIP 75077 |
4.97 |
| 2026-05-25 12:00 |
15:20:14.26 |
-28:13:57.8 |
HIP 75077 |
4.99 |
| 2026-05-26 00:00 |
15:19:39.60 |
-28:13:49.1 |
HIP 75077 |
11.91 |
| 2026-05-26 12:00 |
15:19:05.00 |
-28:13:39.6 |
HIP 74934 |
16.13 |
| 2026-05-27 00:00 |
15:18:30.46 |
-28:13:29.3 |
HIP 74934 |
15.64 |
| 2026-05-27 12:00 |
15:17:55.98 |
-28:13:18.1 |
HIP 74815 |
15.50 |
| 2026-05-28 00:00 |
15:17:21.58 |
-28:13:06.2 |
HIP 74815 |
13.27 |
| 2026-05-28 12:00 |
15:16:47.25 |
-28:12:53.4 |
HIP 74815 |
15.06 |
| 2026-05-29 00:00 |
15:16:12.99 |
-28:12:39.8 |
HIP 74815 |
19.78 |
| 2026-05-29 12:00 |
15:15:38.82 |
-28:12:25.5 |
HIP 74815 |
25.86 |
| 2026-05-30 00:00 |
15:15:04.72 |
-28:12:10.4 |
HIP 74815 |
32.54 |
| 2026-05-30 12:00 |
15:14:30.72 |
-28:11:54.5 |
HIP 74616 |
32.67 |
| 2026-05-31 00:00 |
15:13:56.80 |
-28:11:37.9 |
HIP 74616 |
33.91 |
| 2026-05-31 12:00 |
15:13:22.97 |
-28:11:20.5 |
HIP 74616 |
36.65 |
| 2026-06-01 00:00 |
15:12:49.23 |
-28:11:02.4 |
HIP 74245 |
36.78 |
| 2026-06-01 12:00 |
15:12:15.59 |
-28:10:43.6 |
HIP 74245 |
30.58 |
| 2026-06-02 00:00 |
15:11:42.06 |
-28:10:24.1 |
HIP 74245 |
25.06 |