메타데이터
| 항목 |
값 |
| Designation |
P/2019 S3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2019-08-26T02:18:33.667200Z |
| Orbit solution date (soln_date, UTC) |
2022-04-11T23:22:27Z |
| Obs used |
61 |
| NEO |
- |
| M1 |
18.000 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2019-09-25T12:51:09.792000Z |
| Discovery magnitude (MPC) |
20.70 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2019-10-03.0000000 |
| e |
0.47064656 |
| q (au) |
1.806781 |
| a (au) |
3.413185 |
| i (deg) |
8.692614 |
| Ω (om, deg) |
150.170410 |
| ω (w, deg) |
212.950167 |
| M (ma, deg) |
5.924433 |
밝기
산란 + 전체 선형
$$
M_a = (17.619 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
17.619 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.552 |
| 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) |
| 2026-05-12 00:00 |
03:59:42.47 |
+14:29:10.0 |
HIP 18692 |
13.61 |
| 2026-05-12 12:00 |
04:00:48.28 |
+14:32:31.0 |
HIP 18692 |
16.10 |
| 2026-05-13 00:00 |
04:01:54.04 |
+14:35:50.2 |
HIP 18902 |
18.83 |
| 2026-05-13 12:00 |
04:02:59.75 |
+14:39:07.5 |
HIP 18902 |
10.25 |
| 2026-05-14 00:00 |
04:04:05.42 |
+14:42:23.0 |
HIP 18998 |
19.32 |
| 2026-05-14 12:00 |
04:05:11.04 |
+14:45:36.7 |
HIP 18998 |
21.28 |
| 2026-05-15 00:00 |
04:06:16.62 |
+14:48:48.5 |
HIP 19157 |
24.73 |
| 2026-05-15 12:00 |
04:07:22.14 |
+14:51:58.5 |
HIP 19261 |
18.42 |
| 2026-05-16 00:00 |
04:08:27.62 |
+14:55:06.6 |
HIP 19261 |
18.35 |
| 2026-05-16 12:00 |
04:09:33.05 |
+14:58:12.9 |
HIP 19499 |
22.91 |
| 2026-05-17 00:00 |
04:10:38.43 |
+15:01:17.4 |
HIP 19499 |
12.95 |
| 2026-05-17 12:00 |
04:11:43.76 |
+15:04:20.0 |
HIP 19617 |
10.93 |
| 2026-05-18 00:00 |
04:12:49.04 |
+15:07:20.7 |
HIP 19617 |
14.36 |
| 2026-05-18 12:00 |
04:13:54.26 |
+15:10:19.6 |
HIP 19617 |
28.39 |
| 2026-05-19 00:00 |
04:14:59.44 |
+15:13:16.7 |
HIP 19877 |
15.59 |
| 2026-05-19 12:00 |
04:16:04.56 |
+15:16:11.9 |
HIP 19877 |
9.01 |
| 2026-05-20 00:00 |
04:17:09.62 |
+15:19:05.3 |
HIP 19877 |
20.71 |
| 2026-05-20 12:00 |
04:18:14.64 |
+15:21:56.8 |
HIP 20205 |
27.35 |
| 2026-05-21 00:00 |
04:19:19.60 |
+15:24:46.5 |
HIP 20205 |
14.54 |
| 2026-05-21 12:00 |
04:20:24.50 |
+15:27:34.3 |
HIP 20205 |
13.46 |
| 2026-05-22 00:00 |
04:21:29.34 |
+15:30:20.3 |
HIP 20389 |
18.20 |
| 2026-05-22 12:00 |
04:22:34.13 |
+15:33:04.4 |
HIP 20389 |
16.39 |
| 2026-05-23 00:00 |
04:23:38.87 |
+15:35:46.8 |
HIP 20485 |
10.54 |
| 2026-05-23 12:00 |
04:24:43.54 |
+15:38:27.2 |
HIP 20605 |
14.07 |
| 2026-05-24 00:00 |
04:25:48.16 |
+15:41:05.9 |
HIP 20713 |
8.79 |
| 2026-05-24 12:00 |
04:26:52.72 |
+15:43:42.7 |
HIP 20713 |
10.16 |
| 2026-05-25 00:00 |
04:27:57.22 |
+15:46:17.7 |
HIP 20894 |
11.83 |
| 2026-05-25 12:00 |
04:29:01.66 |
+15:48:50.8 |
HIP 20894 |
6.29 |
| 2026-05-26 00:00 |
04:30:06.04 |
+15:51:22.2 |
HIP 21039 |
12.62 |
| 2026-05-26 12:00 |
04:31:10.36 |
+15:53:51.7 |
HIP 21137 |
10.32 |
| 2026-05-27 00:00 |
04:32:14.62 |
+15:56:19.4 |
HIP 21137 |
7.59 |
| 2026-05-27 12:00 |
04:33:18.81 |
+15:58:45.3 |
HIP 21257 |
21.16 |
| 2026-05-28 00:00 |
04:34:22.95 |
+16:01:09.3 |
HIP 21257 |
21.19 |
| 2026-05-28 12:00 |
04:35:27.03 |
+16:03:31.6 |
HIP 21474 |
21.03 |
| 2026-05-29 00:00 |
04:36:31.04 |
+16:05:52.0 |
HIP 21474 |
13.90 |
| 2026-05-29 12:00 |
04:37:34.99 |
+16:08:10.6 |
HIP 21588 |
10.31 |
| 2026-05-30 00:00 |
04:38:38.88 |
+16:10:27.5 |
HIP 21588 |
11.03 |
| 2026-05-30 12:00 |
04:39:42.70 |
+16:12:42.5 |
HIP 21751 |
13.32 |
| 2026-05-31 00:00 |
04:40:46.47 |
+16:14:55.7 |
HIP 21751 |
12.10 |
| 2026-05-31 12:00 |
04:41:50.16 |
+16:17:07.1 |
HIP 21912 |
18.84 |
| 2026-06-01 00:00 |
04:42:53.80 |
+16:19:16.8 |
HIP 21912 |
11.81 |
| 2026-06-01 12:00 |
04:43:57.37 |
+16:21:24.6 |
HIP 21912 |
19.97 |
| 2026-06-02 00:00 |
04:45:00.87 |
+16:23:30.7 |
HIP 22225 |
26.59 |