메타데이터
| 항목 |
값 |
| Designation |
432P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2021-08-31T00:49:17.221440Z |
| Orbit solution date (soln_date, UTC) |
2021-11-20T19:13:23Z |
| Obs used |
68 |
| NEO |
- |
| M1 |
18.400 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2016-10-25T11:18:06.278400Z |
| Discovery magnitude (MPC) |
20.95 T |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2020-12-28.0000000 |
| e |
0.24254187 |
| q (au) |
2.300216 |
| a (au) |
3.036757 |
| i (deg) |
10.070047 |
| Ω (om, deg) |
239.214363 |
| ω (w, deg) |
105.379770 |
| M (ma, deg) |
314.176883 |
밝기
산란 + 전체 선형
$$
M_a = (18.527 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
18.527 |
| n |
2.000 |
| gf |
0.897 |
| gb |
-0.836 |
| k |
0.992 |
| 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) |
| 2026-06-01 00:00 |
20:20:47.95 |
-08:55:43.7 |
HIP 100482 |
26.97 |
| 2026-06-01 12:00 |
20:20:52.02 |
-08:52:18.5 |
HIP 100481 |
25.59 |
| 2026-06-02 00:00 |
20:20:55.71 |
-08:48:54.1 |
HIP 100481 |
24.53 |
| 2026-06-02 12:00 |
20:20:59.04 |
-08:45:30.6 |
HIP 100481 |
24.04 |
| 2026-06-03 00:00 |
20:21:01.99 |
-08:42:08.1 |
HIP 100235 |
24.04 |
| 2026-06-03 12:00 |
20:21:04.56 |
-08:38:46.4 |
HIP 100235 |
22.65 |
| 2026-06-04 00:00 |
20:21:06.76 |
-08:35:25.7 |
HIP 100235 |
21.63 |
| 2026-06-04 12:00 |
20:21:08.58 |
-08:32:06.0 |
HIP 100235 |
21.04 |
| 2026-06-05 00:00 |
20:21:10.03 |
-08:28:47.3 |
HIP 100235 |
20.87 |
| 2026-06-05 12:00 |
20:21:11.10 |
-08:25:29.6 |
HIP 100235 |
21.14 |
| 2026-06-06 00:00 |
20:21:11.78 |
-08:22:12.9 |
HIP 100235 |
21.82 |
| 2026-06-06 12:00 |
20:21:12.09 |
-08:18:57.3 |
HIP 100235 |
22.85 |
| 2026-06-07 00:00 |
20:21:12.02 |
-08:15:42.8 |
HIP 100235 |
24.19 |
| 2026-06-07 12:00 |
20:21:11.56 |
-08:12:29.5 |
HIP 100235 |
25.79 |
| 2026-06-08 00:00 |
20:21:10.73 |
-08:09:17.2 |
HIP 100326 |
25.32 |
| 2026-06-08 12:00 |
20:21:09.51 |
-08:06:06.1 |
HIP 100326 |
22.16 |
| 2026-06-09 00:00 |
20:21:07.90 |
-08:02:56.2 |
HIP 100326 |
19.00 |
| 2026-06-09 12:00 |
20:21:05.91 |
-07:59:47.5 |
HIP 100326 |
15.84 |
| 2026-06-10 00:00 |
20:21:03.54 |
-07:56:40.0 |
HIP 100326 |
12.69 |
| 2026-06-10 12:00 |
20:21:00.78 |
-07:53:33.8 |
HIP 100326 |
9.53 |
| 2026-06-11 00:00 |
20:20:57.64 |
-07:50:28.9 |
HIP 100326 |
6.38 |
| 2026-06-11 12:00 |
20:20:54.11 |
-07:47:25.3 |
HIP 100326 |
3.26 |
| 2026-06-12 00:00 |
20:20:50.19 |
-07:44:23.0 |
HIP 100326 |
0.77 |
| 2026-06-12 12:00 |
20:20:45.90 |
-07:41:22.1 |
HIP 100326 |
3.29 |
| 2026-06-13 00:00 |
20:20:41.21 |
-07:38:22.6 |
HIP 100326 |
6.44 |
| 2026-06-13 12:00 |
20:20:36.14 |
-07:35:24.4 |
HIP 100326 |
9.63 |
| 2026-06-14 00:00 |
20:20:30.69 |
-07:32:27.7 |
HIP 100326 |
12.85 |
| 2026-06-14 12:00 |
20:20:24.86 |
-07:29:32.5 |
HIP 100326 |
16.09 |
| 2026-06-15 00:00 |
20:20:18.64 |
-07:26:38.7 |
HIP 100326 |
19.34 |
| 2026-06-15 12:00 |
20:20:12.04 |
-07:23:46.4 |
HIP 100326 |
22.62 |
| 2026-06-16 00:00 |
20:20:05.07 |
-07:20:55.7 |
HIP 100326 |
25.92 |
| 2026-06-16 12:00 |
20:19:57.71 |
-07:18:06.5 |
HIP 100326 |
29.24 |
| 2026-06-17 00:00 |
20:19:49.98 |
-07:15:18.8 |
HIP 100326 |
32.58 |
| 2026-06-17 12:00 |
20:19:41.87 |
-07:12:32.8 |
HIP 100326 |
35.95 |
| 2026-06-18 00:00 |
20:19:33.39 |
-07:09:48.3 |
HIP 100153 |
32.80 |
| 2026-06-18 12:00 |
20:19:24.54 |
-07:07:05.5 |
HIP 100153 |
29.61 |
| 2026-06-19 00:00 |
20:19:15.32 |
-07:04:24.3 |
HIP 100153 |
26.51 |
| 2026-06-19 12:00 |
20:19:05.73 |
-07:01:44.8 |
HIP 100153 |
23.55 |
| 2026-06-20 00:00 |
20:18:55.77 |
-06:59:07.0 |
HIP 100153 |
20.81 |
| 2026-06-20 12:00 |
20:18:45.45 |
-06:56:30.9 |
HIP 100153 |
18.41 |
| 2026-06-21 00:00 |
20:18:34.77 |
-06:53:56.5 |
HIP 100153 |
16.54 |
| 2026-06-21 12:00 |
20:18:23.73 |
-06:51:23.9 |
HIP 100153 |
15.41 |
| 2026-06-22 00:00 |
20:18:12.33 |
-06:48:53.0 |
HIP 100153 |
15.24 |