P/2021 P3 (PANSTARRS)
메타데이터
| 항목 |
값 |
| Designation |
P/2021 P3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2021-05-31T00:59:23.956800Z |
| Orbit solution date (soln_date, UTC) |
2024-04-13T16:42:58Z |
| Obs used |
104 |
| NEO |
- |
| M1 |
13.700 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2021-08-11T14:01:45.033600Z |
| Discovery magnitude (MPC) |
20.63 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2021-09-09.0000000 |
| e |
0.34046368 |
| q (au) |
2.916288 |
| a (au) |
4.421724 |
| i (deg) |
27.156308 |
| Ω (om, deg) |
358.237092 |
| ω (w, deg) |
334.236786 |
| M (ma, deg) |
10.701892 |
밝기
산란 + 전체 선형
$$
M_a = (14.341 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.341 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.755 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
11:07:21.73 |
+19:49:57.1 |
HIP 54381 |
26.54 |
| 2026-02-03 12:00 |
11:07:07.37 |
+19:51:08.1 |
HIP 54381 |
26.00 |
| 2026-02-04 00:00 |
11:06:52.87 |
+19:52:19.0 |
HIP 54381 |
25.95 |
| 2026-02-04 12:00 |
11:06:38.24 |
+19:53:29.9 |
HIP 54381 |
26.42 |
| 2026-02-05 00:00 |
11:06:23.49 |
+19:54:40.8 |
HIP 54381 |
27.38 |
| 2026-02-05 12:00 |
11:06:08.61 |
+19:55:51.6 |
HIP 54381 |
28.81 |
| 2026-02-06 00:00 |
11:05:53.61 |
+19:57:02.3 |
HIP 54381 |
30.63 |
| 2026-02-06 12:00 |
11:05:38.49 |
+19:58:13.0 |
HIP 54381 |
32.80 |
| 2026-02-07 00:00 |
11:05:23.24 |
+19:59:23.5 |
HIP 54050 |
34.19 |
| 2026-02-07 12:00 |
11:05:07.88 |
+20:00:33.9 |
HIP 54050 |
32.53 |
| 2026-02-08 00:00 |
11:04:52.41 |
+20:01:44.1 |
HIP 54050 |
31.22 |
| 2026-02-08 12:00 |
11:04:36.82 |
+20:02:54.2 |
HIP 54050 |
30.33 |
| 2026-02-09 00:00 |
11:04:21.12 |
+20:04:04.2 |
HIP 53954 |
29.26 |
| 2026-02-09 12:00 |
11:04:05.31 |
+20:05:13.9 |
HIP 53954 |
25.38 |
| 2026-02-10 00:00 |
11:03:49.39 |
+20:06:23.4 |
HIP 53954 |
21.49 |
| 2026-02-10 12:00 |
11:03:33.37 |
+20:07:32.7 |
HIP 53954 |
17.57 |
| 2026-02-11 00:00 |
11:03:17.24 |
+20:08:41.7 |
HIP 53954 |
13.65 |
| 2026-02-11 12:00 |
11:03:01.02 |
+20:09:50.5 |
HIP 53954 |
9.72 |
| 2026-02-12 00:00 |
11:02:44.69 |
+20:10:59.0 |
HIP 53954 |
5.85 |
| 2026-02-12 12:00 |
11:02:28.27 |
+20:12:07.1 |
HIP 53954 |
2.40 |
| 2026-02-13 00:00 |
11:02:11.76 |
+20:13:15.0 |
HIP 53954 |
3.10 |
| 2026-02-13 12:00 |
11:01:55.15 |
+20:14:22.5 |
HIP 53954 |
6.80 |
| 2026-02-14 00:00 |
11:01:38.46 |
+20:15:29.7 |
HIP 53954 |
10.78 |
| 2026-02-14 12:00 |
11:01:21.67 |
+20:16:36.5 |
HIP 53954 |
14.82 |
| 2026-02-15 00:00 |
11:01:04.81 |
+20:17:42.9 |
HIP 53954 |
18.90 |
| 2026-02-15 12:00 |
11:00:47.86 |
+20:18:49.0 |
HIP 53866 |
22.25 |
| 2026-02-16 00:00 |
11:00:30.83 |
+20:19:54.5 |
HIP 53866 |
24.60 |
| 2026-02-16 12:00 |
11:00:13.72 |
+20:20:59.7 |
HIP 53678 |
20.82 |
| 2026-02-17 00:00 |
10:59:56.54 |
+20:22:04.4 |
HIP 53678 |
16.90 |
| 2026-02-17 12:00 |
10:59:39.29 |
+20:23:08.6 |
HIP 53678 |
13.12 |
| 2026-02-18 00:00 |
10:59:21.97 |
+20:24:12.3 |
HIP 53678 |
9.67 |
| 2026-02-18 12:00 |
10:59:04.58 |
+20:25:15.5 |
HIP 53678 |
7.09 |
| 2026-02-19 00:00 |
10:58:47.13 |
+20:26:18.2 |
HIP 53678 |
6.53 |
| 2026-02-19 12:00 |
10:58:29.62 |
+20:27:20.3 |
HIP 53678 |
8.41 |
| 2026-02-20 00:00 |
10:58:12.05 |
+20:28:21.9 |
HIP 53678 |
11.62 |
| 2026-02-20 12:00 |
10:57:54.42 |
+20:29:22.9 |
HIP 53678 |
15.36 |
| 2026-02-21 00:00 |
10:57:36.74 |
+20:30:23.3 |
HIP 53678 |
19.32 |
| 2026-02-21 12:00 |
10:57:19.01 |
+20:31:23.1 |
HIP 53678 |
23.39 |
| 2026-02-22 00:00 |
10:57:01.24 |
+20:32:22.3 |
HIP 53678 |
27.54 |
| 2026-02-22 12:00 |
10:56:43.42 |
+20:33:20.8 |
HIP 53678 |
31.73 |
| 2026-02-23 00:00 |
10:56:25.55 |
+20:34:18.7 |
HIP 53338 |
29.08 |
| 2026-02-23 12:00 |
10:56:07.65 |
+20:35:15.9 |
HIP 53338 |
24.89 |
| 2026-02-24 00:00 |
10:55:49.71 |
+20:36:12.4 |
HIP 53338 |
20.74 |