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) |
| 2026-09-20 00:00 |
06:49:40.60 |
+27:59:01.5 |
HIP 32694 |
7.92 |
| 2026-09-20 12:00 |
06:49:41.05 |
+27:59:09.6 |
HIP 32694 |
8.08 |
| 2026-09-21 00:00 |
06:49:41.43 |
+27:59:17.8 |
HIP 32694 |
8.24 |
| 2026-09-21 12:00 |
06:49:41.74 |
+27:59:26.1 |
HIP 32694 |
8.39 |
| 2026-09-22 00:00 |
06:49:41.99 |
+27:59:34.5 |
HIP 32694 |
8.52 |
| 2026-09-22 12:00 |
06:49:42.17 |
+27:59:43.0 |
HIP 32694 |
8.66 |
| 2026-09-23 00:00 |
06:49:42.28 |
+27:59:51.5 |
HIP 32694 |
8.78 |
| 2026-09-23 12:00 |
06:49:42.33 |
+28:00:00.2 |
HIP 32694 |
8.89 |
| 2026-09-24 00:00 |
06:49:42.31 |
+28:00:09.0 |
HIP 32694 |
9.00 |
| 2026-09-24 12:00 |
06:49:42.23 |
+28:00:17.9 |
HIP 32694 |
9.10 |
| 2026-09-25 00:00 |
06:49:42.08 |
+28:00:26.8 |
HIP 32694 |
9.19 |
| 2026-09-25 12:00 |
06:49:41.86 |
+28:00:35.9 |
HIP 32694 |
9.28 |
| 2026-09-26 00:00 |
06:49:41.57 |
+28:00:45.1 |
HIP 32694 |
9.36 |
| 2026-09-26 12:00 |
06:49:41.22 |
+28:00:54.3 |
HIP 32694 |
9.44 |
| 2026-09-27 00:00 |
06:49:40.80 |
+28:01:03.7 |
HIP 32694 |
9.51 |
| 2026-09-27 12:00 |
06:49:40.31 |
+28:01:13.1 |
HIP 32694 |
9.58 |
| 2026-09-28 00:00 |
06:49:39.75 |
+28:01:22.6 |
HIP 32694 |
9.64 |
| 2026-09-28 12:00 |
06:49:39.13 |
+28:01:32.3 |
HIP 32694 |
9.70 |
| 2026-09-29 00:00 |
06:49:38.44 |
+28:01:42.0 |
HIP 32694 |
9.76 |
| 2026-09-29 12:00 |
06:49:37.67 |
+28:01:51.8 |
HIP 32694 |
9.81 |
| 2026-09-30 00:00 |
06:49:36.84 |
+28:02:01.7 |
HIP 32694 |
9.87 |
| 2026-09-30 12:00 |
06:49:35.95 |
+28:02:11.7 |
HIP 32694 |
9.92 |
| 2026-10-01 00:00 |
06:49:34.98 |
+28:02:21.8 |
HIP 32694 |
9.98 |
| 2026-10-01 12:00 |
06:49:33.94 |
+28:02:32.0 |
HIP 32694 |
10.04 |
| 2026-10-02 00:00 |
06:49:32.83 |
+28:02:42.2 |
HIP 32694 |
10.10 |
| 2026-10-02 12:00 |
06:49:31.66 |
+28:02:52.6 |
HIP 32694 |
10.17 |
| 2026-10-03 00:00 |
06:49:30.41 |
+28:03:03.0 |
HIP 32694 |
10.24 |
| 2026-10-03 12:00 |
06:49:29.10 |
+28:03:13.5 |
HIP 32694 |
10.32 |
| 2026-10-04 00:00 |
06:49:27.71 |
+28:03:24.1 |
HIP 32694 |
10.41 |
| 2026-10-04 12:00 |
06:49:26.25 |
+28:03:34.8 |
HIP 32694 |
10.51 |
| 2026-10-05 00:00 |
06:49:24.73 |
+28:03:45.6 |
HIP 32694 |
10.61 |
| 2026-10-05 12:00 |
06:49:23.13 |
+28:03:56.5 |
HIP 32694 |
10.73 |
| 2026-10-06 00:00 |
06:49:21.46 |
+28:04:07.5 |
HIP 32694 |
10.86 |
| 2026-10-06 12:00 |
06:49:19.72 |
+28:04:18.5 |
HIP 32694 |
11.01 |
| 2026-10-07 00:00 |
06:49:17.91 |
+28:04:29.6 |
HIP 32694 |
11.17 |
| 2026-10-07 12:00 |
06:49:16.03 |
+28:04:40.8 |
HIP 32694 |
11.34 |
| 2026-10-08 00:00 |
06:49:14.08 |
+28:04:52.1 |
HIP 32694 |
11.54 |
| 2026-10-08 12:00 |
06:49:12.06 |
+28:05:03.5 |
HIP 32694 |
11.75 |
| 2026-10-09 00:00 |
06:49:09.96 |
+28:05:14.9 |
HIP 32694 |
11.98 |
| 2026-10-09 12:00 |
06:49:07.80 |
+28:05:26.4 |
HIP 32694 |
12.23 |
| 2026-10-10 00:00 |
06:49:05.56 |
+28:05:38.0 |
HIP 32694 |
12.50 |
| 2026-10-10 12:00 |
06:49:03.25 |
+28:05:49.7 |
HIP 32694 |
12.79 |
| 2026-10-11 00:00 |
06:49:00.87 |
+28:06:01.5 |
HIP 32694 |
13.10 |