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 |
1.000 |
| gb |
-0.545 |
| k |
0.800 |
| 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) |
| 2026-06-01 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 |
| 2026-06-02 12:00 |
15:11:57.79 |
-08:19:22.1 |
HIP 74371 |
31.06 |
| 2026-06-03 00:00 |
15:11:42.17 |
-08:18:20.7 |
HIP 74371 |
32.13 |
| 2026-06-03 12:00 |
15:11:26.71 |
-08:17:20.6 |
HIP 74371 |
33.62 |
| 2026-06-04 00:00 |
15:11:11.40 |
-08:16:21.8 |
HIP 74191 |
33.71 |
| 2026-06-04 12:00 |
15:10:56.24 |
-08:15:24.2 |
HIP 74191 |
30.47 |
| 2026-06-05 00:00 |
15:10:41.24 |
-08:14:27.9 |
HIP 74191 |
27.43 |
| 2026-06-05 12:00 |
15:10:26.40 |
-08:13:32.9 |
HIP 74191 |
24.65 |
| 2026-06-06 00:00 |
15:10:11.72 |
-08:12:39.2 |
HIP 74191 |
22.20 |
| 2026-06-06 12:00 |
15:09:57.20 |
-08:11:46.8 |
HIP 74191 |
20.20 |
| 2026-06-07 00:00 |
15:09:42.85 |
-08:10:55.6 |
HIP 74191 |
18.73 |
| 2026-06-07 12:00 |
15:09:28.67 |
-08:10:05.8 |
HIP 74191 |
17.93 |
| 2026-06-08 00:00 |
15:09:14.66 |
-08:09:17.3 |
HIP 74191 |
17.83 |
| 2026-06-08 12:00 |
15:09:00.83 |
-08:08:30.1 |
HIP 74067 |
18.22 |
| 2026-06-09 00:00 |
15:08:47.17 |
-08:07:44.3 |
HIP 74067 |
15.56 |
| 2026-06-09 12:00 |
15:08:33.69 |
-08:06:59.7 |
HIP 74067 |
13.33 |
| 2026-06-10 00:00 |
15:08:20.38 |
-08:06:16.5 |
HIP 74067 |
11.71 |
| 2026-06-10 12:00 |
15:08:07.26 |
-08:05:34.7 |
HIP 74067 |
10.93 |
| 2026-06-11 00:00 |
15:07:54.32 |
-08:04:54.1 |
HIP 74067 |
11.14 |
| 2026-06-11 12:00 |
15:07:41.57 |
-08:04:14.9 |
HIP 74067 |
12.24 |
| 2026-06-12 00:00 |
15:07:29.01 |
-08:03:37.1 |
HIP 74067 |
14.00 |
| 2026-06-12 12:00 |
15:07:16.63 |
-08:03:00.6 |
HIP 74067 |
16.16 |
| 2026-06-13 00:00 |
15:07:04.45 |
-08:02:25.5 |
HIP 74067 |
18.56 |
| 2026-06-13 12:00 |
15:06:52.46 |
-08:01:51.7 |
HIP 74067 |
21.10 |
| 2026-06-14 00:00 |
15:06:40.67 |
-08:01:19.3 |
HIP 74067 |
23.71 |
| 2026-06-14 12:00 |
15:06:29.07 |
-08:00:48.2 |
HIP 74067 |
26.36 |
| 2026-06-15 00:00 |
15:06:17.68 |
-08:00:18.5 |
HIP 73747 |
27.25 |
| 2026-06-15 12:00 |
15:06:06.48 |
-07:59:50.2 |
HIP 73747 |
24.55 |
| 2026-06-16 00:00 |
15:05:55.49 |
-07:59:23.2 |
HIP 73747 |
21.92 |
| 2026-06-16 12:00 |
15:05:44.70 |
-07:58:57.6 |
HIP 73747 |
19.36 |
| 2026-06-17 00:00 |
15:05:34.12 |
-07:58:33.4 |
HIP 73747 |
16.90 |
| 2026-06-17 12:00 |
15:05:23.75 |
-07:58:10.5 |
HIP 73747 |
14.55 |
| 2026-06-18 00:00 |
15:05:13.58 |
-07:57:49.0 |
HIP 73747 |
12.33 |
| 2026-06-18 12:00 |
15:05:03.63 |
-07:57:28.8 |
HIP 73747 |
10.30 |
| 2026-06-19 00:00 |
15:04:53.88 |
-07:57:10.0 |
HIP 73747 |
8.53 |
| 2026-06-19 12:00 |
15:04:44.35 |
-07:56:52.5 |
HIP 73747 |
7.18 |
| 2026-06-20 00:00 |
15:04:35.03 |
-07:56:36.4 |
HIP 73747 |
6.44 |
| 2026-06-20 12:00 |
15:04:25.92 |
-07:56:21.7 |
HIP 73747 |
6.47 |
| 2026-06-21 00:00 |
15:04:17.03 |
-07:56:08.2 |
HIP 73747 |
7.21 |
| 2026-06-21 12:00 |
15:04:08.36 |
-07:55:56.2 |
HIP 73747 |
8.43 |
| 2026-06-22 00:00 |
15:03:59.90 |
-07:55:45.4 |
HIP 73747 |
9.92 |