메타데이터
| 항목 |
값 |
| Designation |
P/2025 D3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-07-25T15:47:32.513280Z |
| Orbit solution date (soln_date, UTC) |
2025-07-31T12:12:39Z |
| Obs used |
53 |
| NEO |
- |
| M1 |
17.500 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2025-02-22T10:22:18.192000Z |
| Discovery magnitude (MPC) |
21.65 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2025-02-24.0000000 |
| e |
0.25244615 |
| q (au) |
2.965357 |
| a (au) |
3.966747 |
| i (deg) |
9.644276 |
| Ω (om, deg) |
186.635562 |
| ω (w, deg) |
294.451918 |
| M (ma, deg) |
26.615137 |
밝기
산란 + 전체 선형
$$
M_a = (18.470 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
18.470 |
| n |
2.000 |
| gf |
0.996 |
| gb |
-0.545 |
| k |
0.800 |
| δ90 |
9.999 |
| 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) |
| 2026-05-12 00:00 |
15:24:48.93 |
-09:21:02.1 |
HIP 75391 |
10.14 |
| 2026-05-12 12:00 |
15:24:29.82 |
-09:19:16.2 |
HIP 75391 |
5.85 |
| 2026-05-13 00:00 |
15:24:10.72 |
-09:17:31.0 |
HIP 75391 |
4.06 |
| 2026-05-13 12:00 |
15:23:51.63 |
-09:15:46.6 |
HIP 75391 |
7.02 |
| 2026-05-14 00:00 |
15:23:32.55 |
-09:14:02.9 |
HIP 75391 |
11.51 |
| 2026-05-14 12:00 |
15:23:13.48 |
-09:12:20.0 |
HIP 75284 |
6.80 |
| 2026-05-15 00:00 |
15:22:54.43 |
-09:10:38.0 |
HIP 75284 |
3.09 |
| 2026-05-15 12:00 |
15:22:35.40 |
-09:08:56.7 |
HIP 75284 |
4.78 |
| 2026-05-16 00:00 |
15:22:16.40 |
-09:07:16.3 |
HIP 75284 |
9.26 |
| 2026-05-16 12:00 |
15:21:57.43 |
-09:05:36.8 |
HIP 75284 |
14.07 |
| 2026-05-17 00:00 |
15:21:38.49 |
-09:03:58.1 |
HIP 75185 |
16.71 |
| 2026-05-17 12:00 |
15:21:19.60 |
-09:02:20.3 |
HIP 75185 |
19.74 |
| 2026-05-18 00:00 |
15:21:00.75 |
-09:00:43.4 |
HIP 75185 |
23.41 |
| 2026-05-18 12:00 |
15:20:41.94 |
-08:59:07.5 |
HIP 74982 |
22.02 |
| 2026-05-19 00:00 |
15:20:23.19 |
-08:57:32.5 |
HIP 75038 |
18.76 |
| 2026-05-19 12:00 |
15:20:04.49 |
-08:55:58.4 |
HIP 75038 |
16.34 |
| 2026-05-20 00:00 |
15:19:45.85 |
-08:54:25.4 |
HIP 75038 |
15.16 |
| 2026-05-20 12:00 |
15:19:27.28 |
-08:52:53.3 |
HIP 75038 |
15.50 |
| 2026-05-21 00:00 |
15:19:08.77 |
-08:51:22.2 |
HIP 75038 |
17.24 |
| 2026-05-21 12:00 |
15:18:50.33 |
-08:49:52.1 |
HIP 75038 |
20.01 |
| 2026-05-22 00:00 |
15:18:31.97 |
-08:48:23.0 |
HIP 74805 |
21.57 |
| 2026-05-22 12:00 |
15:18:13.69 |
-08:46:55.0 |
HIP 74805 |
16.95 |
| 2026-05-23 00:00 |
15:17:55.48 |
-08:45:28.0 |
HIP 74805 |
12.47 |
| 2026-05-23 12:00 |
15:17:37.37 |
-08:44:02.1 |
HIP 74805 |
8.30 |
| 2026-05-24 00:00 |
15:17:19.34 |
-08:42:37.2 |
HIP 74805 |
5.15 |
| 2026-05-24 12:00 |
15:17:01.40 |
-08:41:13.4 |
HIP 74805 |
5.28 |
| 2026-05-25 00:00 |
15:16:43.56 |
-08:39:50.8 |
HIP 74805 |
8.49 |
| 2026-05-25 12:00 |
15:16:25.81 |
-08:38:29.2 |
HIP 74805 |
12.59 |
| 2026-05-26 00:00 |
15:16:08.17 |
-08:37:08.7 |
HIP 74805 |
16.92 |
| 2026-05-26 12:00 |
15:15:50.63 |
-08:35:49.4 |
HIP 74805 |
21.31 |
| 2026-05-27 00:00 |
15:15:33.20 |
-08:34:31.2 |
HIP 74564 |
21.29 |
| 2026-05-27 12:00 |
15:15:15.89 |
-08:33:14.2 |
HIP 74564 |
17.00 |
| 2026-05-28 00:00 |
15:14:58.68 |
-08:31:58.3 |
HIP 74564 |
12.87 |
| 2026-05-28 12:00 |
15:14:41.59 |
-08:30:43.5 |
HIP 74564 |
9.05 |
| 2026-05-29 00:00 |
15:14:24.63 |
-08:29:30.0 |
HIP 74564 |
6.08 |
| 2026-05-29 12:00 |
15:14:07.78 |
-08:28:17.6 |
HIP 74564 |
5.48 |
| 2026-05-30 00:00 |
15:13:51.06 |
-08:27:06.4 |
HIP 74564 |
7.76 |
| 2026-05-30 12:00 |
15:13:34.47 |
-08:25:56.4 |
HIP 74564 |
11.25 |
| 2026-05-31 00:00 |
15:13:18.02 |
-08:24:47.6 |
HIP 74525 |
14.04 |
| 2026-05-31 12:00 |
15:13:01.69 |
-08:23:40.1 |
HIP 74525 |
17.20 |
| 2026-06-01 00:00 |
15:12:45.50 |
-08:22:33.7 |
HIP 74525 |
20.69 |
| 2026-06-01 12:00 |
15:12:29.46 |
-08:21:28.6 |
HIP 74525 |
24.36 |
| 2026-06-02 00:00 |
15:12:13.55 |
-08:20:24.7 |
HIP 74525 |
28.10 |