메타데이터
| 항목 |
값 |
| Designation |
503P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2018-11-12T13:38:28.222080Z |
| Orbit solution date (soln_date, UTC) |
2025-07-07T14:12:36Z |
| Obs used |
123 |
| NEO |
- |
| M1 |
14.400 |
| K1 |
11.000 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2018-06-03T06:49:46.848000Z |
| Discovery magnitude (MPC) |
20.00 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2019-10-11.0000000 |
| e |
0.48303012 |
| q (au) |
1.885951 |
| a (au) |
3.648087 |
| i (deg) |
10.594784 |
| Ω (om, deg) |
268.626025 |
| ω (w, deg) |
17.915078 |
| M (ma, deg) |
47.022821 |
밝기
산란 + 전체 선형
$$
M_a = (12.375 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.375 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
02:10:33.94 |
+24:20:35.7 |
HIP 10042 |
17.84 |
| 2026-07-29 12:00 |
02:10:54.50 |
+24:23:32.1 |
HIP 10042 |
22.99 |
| 2026-07-30 00:00 |
02:11:14.78 |
+24:26:27.2 |
HIP 10296 |
24.98 |
| 2026-07-30 12:00 |
02:11:34.77 |
+24:29:20.9 |
HIP 10296 |
24.00 |
| 2026-07-31 00:00 |
02:11:54.48 |
+24:32:13.2 |
HIP 10296 |
24.22 |
| 2026-07-31 12:00 |
02:12:13.90 |
+24:35:04.2 |
HIP 10296 |
25.57 |
| 2026-08-01 00:00 |
02:12:33.04 |
+24:37:53.7 |
HIP 10296 |
27.85 |
| 2026-08-01 12:00 |
02:12:51.88 |
+24:40:41.9 |
HIP 10296 |
30.81 |
| 2026-08-02 00:00 |
02:13:10.43 |
+24:43:28.7 |
HIP 10296 |
34.24 |
| 2026-08-02 12:00 |
02:13:28.69 |
+24:46:14.1 |
HIP 10535 |
34.54 |
| 2026-08-03 00:00 |
02:13:46.65 |
+24:48:58.1 |
HIP 10535 |
29.66 |
| 2026-08-03 12:00 |
02:14:04.31 |
+24:51:40.7 |
HIP 10535 |
24.86 |
| 2026-08-04 00:00 |
02:14:21.68 |
+24:54:21.8 |
HIP 10535 |
20.15 |
| 2026-08-04 12:00 |
02:14:38.74 |
+24:57:01.5 |
HIP 10535 |
15.55 |
| 2026-08-05 00:00 |
02:14:55.50 |
+24:59:39.8 |
HIP 10535 |
11.12 |
| 2026-08-05 12:00 |
02:15:11.95 |
+25:02:16.6 |
HIP 10535 |
7.00 |
| 2026-08-06 00:00 |
02:15:28.09 |
+25:04:51.9 |
HIP 10535 |
4.04 |
| 2026-08-06 12:00 |
02:15:43.92 |
+25:07:25.8 |
HIP 10535 |
4.84 |
| 2026-08-07 00:00 |
02:15:59.45 |
+25:09:58.2 |
HIP 10576 |
6.80 |
| 2026-08-07 12:00 |
02:16:14.65 |
+25:12:29.1 |
HIP 10576 |
9.25 |
| 2026-08-08 00:00 |
02:16:29.55 |
+25:14:58.5 |
HIP 10576 |
12.64 |
| 2026-08-08 12:00 |
02:16:44.12 |
+25:17:26.3 |
HIP 10576 |
16.35 |
| 2026-08-09 00:00 |
02:16:58.37 |
+25:19:52.7 |
HIP 10576 |
20.15 |
| 2026-08-09 12:00 |
02:17:12.30 |
+25:22:17.5 |
HIP 10576 |
23.97 |
| 2026-08-10 00:00 |
02:17:25.91 |
+25:24:40.8 |
HIP 10576 |
27.76 |
| 2026-08-10 12:00 |
02:17:39.19 |
+25:27:02.5 |
HIP 10845 |
26.38 |
| 2026-08-11 00:00 |
02:17:52.15 |
+25:29:22.7 |
HIP 10845 |
23.24 |
| 2026-08-11 12:00 |
02:18:04.77 |
+25:31:41.3 |
HIP 10845 |
20.36 |
| 2026-08-12 00:00 |
02:18:17.06 |
+25:33:58.2 |
HIP 10815 |
17.26 |
| 2026-08-12 12:00 |
02:18:29.02 |
+25:36:13.6 |
HIP 10815 |
13.76 |
| 2026-08-13 00:00 |
02:18:40.65 |
+25:38:27.4 |
HIP 10815 |
10.33 |
| 2026-08-13 12:00 |
02:18:51.94 |
+25:40:39.6 |
HIP 10815 |
6.98 |
| 2026-08-14 00:00 |
02:19:02.89 |
+25:42:50.1 |
HIP 10815 |
3.74 |
| 2026-08-14 12:00 |
02:19:13.51 |
+25:44:59.0 |
HIP 10815 |
0.91 |
| 2026-08-15 00:00 |
02:19:23.78 |
+25:47:06.3 |
HIP 10815 |
2.81 |
| 2026-08-15 12:00 |
02:19:33.71 |
+25:49:11.8 |
HIP 10815 |
5.81 |
| 2026-08-16 00:00 |
02:19:43.30 |
+25:51:15.8 |
HIP 10815 |
8.77 |
| 2026-08-16 12:00 |
02:19:52.55 |
+25:53:18.0 |
HIP 10815 |
11.67 |
| 2026-08-17 00:00 |
02:20:01.45 |
+25:55:18.5 |
HIP 10815 |
14.49 |
| 2026-08-17 12:00 |
02:20:10.00 |
+25:57:17.4 |
HIP 10815 |
17.24 |
| 2026-08-18 00:00 |
02:20:18.21 |
+25:59:14.5 |
HIP 10815 |
19.92 |
| 2026-08-18 12:00 |
02:20:26.07 |
+26:01:09.9 |
HIP 10815 |
22.52 |
| 2026-08-19 00:00 |
02:20:33.58 |
+26:03:03.6 |
HIP 11050 |
23.90 |