메타데이터
| 항목 |
값 |
| Designation |
P/2023 S1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2025-02-24T01:28:32.813760Z |
| Orbit solution date (soln_date, UTC) |
2026-03-07T14:43:24Z |
| Obs used |
1925 |
| NEO |
- |
| M1 |
10.300 |
| K1 |
11.500 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2023-09-20T14:30:23.443200Z |
| Discovery magnitude (MPC) |
20.36 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2024-10-30.0000000 |
| e |
0.31884545 |
| q (au) |
2.619724 |
| a (au) |
3.846006 |
| i (deg) |
9.156194 |
| Ω (om, deg) |
317.292646 |
| ω (w, deg) |
180.274114 |
| M (ma, deg) |
344.703107 |
밝기
산란 + 전체 선형
$$
M_a = (9.374 + 5.163\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.374 |
| n |
5.163 |
| gf |
0.889 |
| gb |
-0.806 |
| k |
0.997 |
| δ90 |
1.000 |
| 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) |
| 2026-05-12 00:00 |
15:04:06.93 |
-30:35:42.5 |
HIP 73761 |
8.38 |
| 2026-05-12 12:00 |
15:03:43.03 |
-30:34:03.1 |
HIP 73761 |
12.59 |
| 2026-05-13 00:00 |
15:03:19.18 |
-30:32:22.2 |
HIP 73761 |
17.46 |
| 2026-05-13 12:00 |
15:02:55.40 |
-30:30:40.0 |
HIP 73761 |
22.56 |
| 2026-05-14 00:00 |
15:02:31.68 |
-30:28:56.4 |
HIP 73562 |
22.67 |
| 2026-05-14 12:00 |
15:02:08.05 |
-30:27:11.5 |
HIP 73562 |
20.03 |
| 2026-05-15 00:00 |
15:01:44.49 |
-30:25:25.2 |
HIP 73562 |
18.58 |
| 2026-05-15 12:00 |
15:01:21.02 |
-30:23:37.7 |
HIP 73562 |
18.62 |
| 2026-05-16 00:00 |
15:00:57.64 |
-30:21:48.9 |
HIP 73389 |
13.99 |
| 2026-05-16 12:00 |
15:00:34.36 |
-30:19:58.9 |
HIP 73389 |
9.09 |
| 2026-05-17 00:00 |
15:00:11.19 |
-30:18:07.7 |
HIP 73389 |
5.18 |
| 2026-05-17 12:00 |
14:59:48.12 |
-30:16:15.4 |
HIP 73389 |
5.30 |
| 2026-05-18 00:00 |
14:59:25.17 |
-30:14:21.9 |
HIP 73389 |
9.27 |
| 2026-05-18 12:00 |
14:59:02.35 |
-30:12:27.3 |
HIP 73232 |
13.18 |
| 2026-05-19 00:00 |
14:58:39.65 |
-30:10:31.7 |
HIP 73232 |
8.09 |
| 2026-05-19 12:00 |
14:58:17.08 |
-30:08:35.0 |
HIP 73232 |
3.61 |
| 2026-05-20 00:00 |
14:57:54.65 |
-30:06:37.3 |
HIP 73232 |
3.98 |
| 2026-05-20 12:00 |
14:57:32.36 |
-30:04:38.7 |
HIP 73232 |
8.55 |
| 2026-05-21 00:00 |
14:57:10.21 |
-30:02:39.1 |
HIP 73232 |
13.57 |
| 2026-05-21 12:00 |
14:56:48.23 |
-30:00:38.6 |
HIP 73142 |
16.28 |
| 2026-05-22 00:00 |
14:56:26.39 |
-29:58:37.3 |
HIP 73142 |
19.10 |
| 2026-05-22 12:00 |
14:56:04.72 |
-29:56:35.1 |
HIP 72974 |
22.47 |
| 2026-05-23 00:00 |
14:55:43.22 |
-29:54:32.1 |
HIP 72974 |
17.71 |
| 2026-05-23 12:00 |
14:55:21.89 |
-29:52:28.4 |
HIP 72974 |
13.20 |
| 2026-05-24 00:00 |
14:55:00.73 |
-29:50:23.9 |
HIP 72974 |
9.28 |
| 2026-05-24 12:00 |
14:54:39.75 |
-29:48:18.7 |
HIP 72974 |
6.96 |
| 2026-05-25 00:00 |
14:54:18.96 |
-29:46:12.8 |
HIP 72974 |
7.77 |
| 2026-05-25 12:00 |
14:53:58.35 |
-29:44:06.3 |
HIP 72974 |
11.00 |
| 2026-05-26 00:00 |
14:53:37.94 |
-29:41:59.2 |
HIP 72974 |
15.15 |
| 2026-05-26 12:00 |
14:53:17.72 |
-29:39:51.5 |
HIP 72810 |
16.91 |
| 2026-05-27 00:00 |
14:52:57.70 |
-29:37:43.3 |
HIP 72810 |
14.00 |
| 2026-05-27 12:00 |
14:52:37.88 |
-29:35:34.5 |
HIP 72810 |
12.36 |
| 2026-05-28 00:00 |
14:52:18.27 |
-29:33:25.3 |
HIP 72810 |
12.46 |
| 2026-05-28 12:00 |
14:51:58.87 |
-29:31:15.6 |
HIP 72810 |
14.21 |
| 2026-05-29 00:00 |
14:51:39.68 |
-29:29:05.6 |
HIP 72810 |
17.10 |
| 2026-05-29 12:00 |
14:51:20.71 |
-29:26:55.1 |
HIP 72547 |
19.71 |
| 2026-05-30 00:00 |
14:51:01.96 |
-29:24:44.3 |
HIP 72547 |
15.17 |
| 2026-05-30 12:00 |
14:50:43.43 |
-29:22:33.1 |
HIP 72547 |
10.74 |
| 2026-05-31 00:00 |
14:50:25.13 |
-29:20:21.7 |
HIP 72547 |
6.58 |
| 2026-05-31 12:00 |
14:50:07.06 |
-29:18:10.0 |
HIP 72547 |
3.61 |
| 2026-06-01 00:00 |
14:49:49.22 |
-29:15:58.0 |
HIP 72547 |
4.82 |
| 2026-06-01 12:00 |
14:49:31.61 |
-29:13:45.9 |
HIP 72547 |
8.54 |
| 2026-06-02 00:00 |
14:49:14.25 |
-29:11:33.6 |
HIP 72547 |
12.69 |