메타데이터
| 항목 |
값 |
| Designation |
C/2020 F6 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2020-04-11T13:43:46.001280Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:34:04Z |
| Obs used |
102 |
| NEO |
- |
| M1 |
9.700 |
| K1 |
16.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2020-05-25.0000000 |
| e |
0.99080432 |
| q (au) |
3.511043 |
| a (au) |
381.814590 |
| i (deg) |
174.581373 |
| Ω (om, deg) |
207.879892 |
| ω (w, deg) |
344.592457 |
| M (ma, deg) |
0.005737 |
밝기
산란 + 전체 선형
$$
M_a = (14.117 + 5.220\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.117 |
| n |
5.220 |
| gf |
1.000 |
| gb |
-0.710 |
| 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) |
| 2026-06-01 00:00 |
06:31:52.44 |
+28:05:24.6 |
HIP 31219 |
20.19 |
| 2026-06-01 12:00 |
06:31:58.15 |
+28:05:16.0 |
HIP 31219 |
19.46 |
| 2026-06-02 00:00 |
06:32:03.87 |
+28:05:07.4 |
HIP 31219 |
18.77 |
| 2026-06-02 12:00 |
06:32:09.63 |
+28:04:58.9 |
HIP 31219 |
18.15 |
| 2026-06-03 00:00 |
06:32:15.40 |
+28:04:50.4 |
HIP 31219 |
17.59 |
| 2026-06-03 12:00 |
06:32:21.20 |
+28:04:41.9 |
HIP 31219 |
17.11 |
| 2026-06-04 00:00 |
06:32:27.02 |
+28:04:33.5 |
HIP 31219 |
16.72 |
| 2026-06-04 12:00 |
06:32:32.87 |
+28:04:25.1 |
HIP 31287 |
16.14 |
| 2026-06-05 00:00 |
06:32:38.74 |
+28:04:16.7 |
HIP 31287 |
14.88 |
| 2026-06-05 12:00 |
06:32:44.63 |
+28:04:08.4 |
HIP 31287 |
13.62 |
| 2026-06-06 00:00 |
06:32:50.54 |
+28:04:00.1 |
HIP 31287 |
12.37 |
| 2026-06-06 12:00 |
06:32:56.47 |
+28:03:51.9 |
HIP 31287 |
11.14 |
| 2026-06-07 00:00 |
06:33:02.43 |
+28:03:43.7 |
HIP 31287 |
9.91 |
| 2026-06-07 12:00 |
06:33:08.40 |
+28:03:35.5 |
HIP 31287 |
8.72 |
| 2026-06-08 00:00 |
06:33:14.40 |
+28:03:27.4 |
HIP 31287 |
7.56 |
| 2026-06-08 12:00 |
06:33:20.41 |
+28:03:19.3 |
HIP 31287 |
6.47 |
| 2026-06-09 00:00 |
06:33:26.44 |
+28:03:11.2 |
HIP 31287 |
5.49 |
| 2026-06-09 12:00 |
06:33:32.49 |
+28:03:03.2 |
HIP 31287 |
4.68 |
| 2026-06-10 00:00 |
06:33:38.56 |
+28:02:55.3 |
HIP 31287 |
4.16 |
| 2026-06-10 12:00 |
06:33:44.65 |
+28:02:47.4 |
HIP 31287 |
4.04 |
| 2026-06-11 00:00 |
06:33:50.75 |
+28:02:39.5 |
HIP 31287 |
4.36 |
| 2026-06-11 12:00 |
06:33:56.87 |
+28:02:31.6 |
HIP 31287 |
5.04 |
| 2026-06-12 00:00 |
06:34:03.01 |
+28:02:23.8 |
HIP 31287 |
5.96 |
| 2026-06-12 12:00 |
06:34:09.16 |
+28:02:16.1 |
HIP 31287 |
7.03 |
| 2026-06-13 00:00 |
06:34:15.33 |
+28:02:08.4 |
HIP 31287 |
8.19 |
| 2026-06-13 12:00 |
06:34:21.51 |
+28:02:00.7 |
HIP 31287 |
9.41 |
| 2026-06-14 00:00 |
06:34:27.71 |
+28:01:53.1 |
HIP 31434 |
9.80 |
| 2026-06-14 12:00 |
06:34:33.92 |
+28:01:45.5 |
HIP 31434 |
8.43 |
| 2026-06-15 00:00 |
06:34:40.14 |
+28:01:38.0 |
HIP 31434 |
7.05 |
| 2026-06-15 12:00 |
06:34:46.38 |
+28:01:30.5 |
HIP 31434 |
5.67 |
| 2026-06-16 00:00 |
06:34:52.63 |
+28:01:23.0 |
HIP 31434 |
4.29 |
| 2026-06-16 12:00 |
06:34:58.89 |
+28:01:15.6 |
HIP 31434 |
2.91 |
| 2026-06-17 00:00 |
06:35:05.16 |
+28:01:08.3 |
HIP 31434 |
1.54 |
| 2026-06-17 12:00 |
06:35:11.44 |
+28:01:01.0 |
HIP 31434 |
0.35 |
| 2026-06-18 00:00 |
06:35:17.73 |
+28:00:53.7 |
HIP 31434 |
1.33 |
| 2026-06-18 12:00 |
06:35:24.03 |
+28:00:46.5 |
HIP 31434 |
2.70 |
| 2026-06-19 00:00 |
06:35:30.34 |
+28:00:39.3 |
HIP 31434 |
4.09 |
| 2026-06-19 12:00 |
06:35:36.66 |
+28:00:32.2 |
HIP 31434 |
5.49 |
| 2026-06-20 00:00 |
06:35:42.99 |
+28:00:25.1 |
HIP 31434 |
6.89 |
| 2026-06-20 12:00 |
06:35:49.32 |
+28:00:18.1 |
HIP 31434 |
8.29 |
| 2026-06-21 00:00 |
06:35:55.66 |
+28:00:11.1 |
HIP 31561 |
7.15 |
| 2026-06-21 12:00 |
06:36:02.01 |
+28:00:04.2 |
HIP 31561 |
5.98 |
| 2026-06-22 00:00 |
06:36:08.36 |
+27:59:57.3 |
HIP 31561 |
4.94 |