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 |
0.999 |
| gb |
-0.710 |
| k |
0.800 |
| δ90 |
9.999 |
| 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) |
| 2026-05-12 00:00 |
06:28:30.14 |
+28:11:36.3 |
HIP 30987 |
23.00 |
| 2026-05-12 12:00 |
06:28:34.46 |
+28:11:26.5 |
HIP 30987 |
22.11 |
| 2026-05-13 00:00 |
06:28:38.82 |
+28:11:16.7 |
HIP 30987 |
21.23 |
| 2026-05-13 12:00 |
06:28:43.23 |
+28:11:06.9 |
HIP 30987 |
20.34 |
| 2026-05-14 00:00 |
06:28:47.68 |
+28:10:57.1 |
HIP 30987 |
19.45 |
| 2026-05-14 12:00 |
06:28:52.17 |
+28:10:47.3 |
HIP 30987 |
18.57 |
| 2026-05-15 00:00 |
06:28:56.71 |
+28:10:37.6 |
HIP 30987 |
17.69 |
| 2026-05-15 12:00 |
06:29:01.28 |
+28:10:27.9 |
HIP 30987 |
16.81 |
| 2026-05-16 00:00 |
06:29:05.90 |
+28:10:18.2 |
HIP 30987 |
15.95 |
| 2026-05-16 12:00 |
06:29:10.56 |
+28:10:08.6 |
HIP 30987 |
15.09 |
| 2026-05-17 00:00 |
06:29:15.26 |
+28:09:59.0 |
HIP 30987 |
14.25 |
| 2026-05-17 12:00 |
06:29:20.00 |
+28:09:49.4 |
HIP 30987 |
13.44 |
| 2026-05-18 00:00 |
06:29:24.77 |
+28:09:39.8 |
HIP 30987 |
12.65 |
| 2026-05-18 12:00 |
06:29:29.59 |
+28:09:30.3 |
HIP 30987 |
11.90 |
| 2026-05-19 00:00 |
06:29:34.44 |
+28:09:20.8 |
HIP 31001 |
11.01 |
| 2026-05-19 12:00 |
06:29:39.34 |
+28:09:11.3 |
HIP 31001 |
10.05 |
| 2026-05-20 00:00 |
06:29:44.27 |
+28:09:01.8 |
HIP 31001 |
9.10 |
| 2026-05-20 12:00 |
06:29:49.23 |
+28:08:52.4 |
HIP 31001 |
8.19 |
| 2026-05-21 00:00 |
06:29:54.23 |
+28:08:43.0 |
HIP 31001 |
7.32 |
| 2026-05-21 12:00 |
06:29:59.27 |
+28:08:33.6 |
HIP 31001 |
6.52 |
| 2026-05-22 00:00 |
06:30:04.34 |
+28:08:24.3 |
HIP 31001 |
5.82 |
| 2026-05-22 12:00 |
06:30:09.45 |
+28:08:15.0 |
HIP 31001 |
5.26 |
| 2026-05-23 00:00 |
06:30:14.59 |
+28:08:05.7 |
HIP 31001 |
4.91 |
| 2026-05-23 12:00 |
06:30:19.77 |
+28:07:56.5 |
HIP 31001 |
4.81 |
| 2026-05-24 00:00 |
06:30:24.98 |
+28:07:47.3 |
HIP 31001 |
4.98 |
| 2026-05-24 12:00 |
06:30:30.22 |
+28:07:38.1 |
HIP 31001 |
5.40 |
| 2026-05-25 00:00 |
06:30:35.49 |
+28:07:29.0 |
HIP 31001 |
6.03 |
| 2026-05-25 12:00 |
06:30:40.80 |
+28:07:19.9 |
HIP 31001 |
6.80 |
| 2026-05-26 00:00 |
06:30:46.13 |
+28:07:10.8 |
HIP 31001 |
7.68 |
| 2026-05-26 12:00 |
06:30:51.50 |
+28:07:01.8 |
HIP 31001 |
8.64 |
| 2026-05-27 00:00 |
06:30:56.90 |
+28:06:52.8 |
HIP 31001 |
9.66 |
| 2026-05-27 12:00 |
06:31:02.33 |
+28:06:43.8 |
HIP 31001 |
10.72 |
| 2026-05-28 00:00 |
06:31:07.78 |
+28:06:34.9 |
HIP 31001 |
11.81 |
| 2026-05-28 12:00 |
06:31:13.27 |
+28:06:26.0 |
HIP 31001 |
12.93 |
| 2026-05-29 00:00 |
06:31:18.78 |
+28:06:17.1 |
HIP 31001 |
14.07 |
| 2026-05-29 12:00 |
06:31:24.33 |
+28:06:08.3 |
HIP 31001 |
15.23 |
| 2026-05-30 00:00 |
06:31:29.90 |
+28:05:59.5 |
HIP 31001 |
16.41 |
| 2026-05-30 12:00 |
06:31:35.49 |
+28:05:50.7 |
HIP 31001 |
17.60 |
| 2026-05-31 00:00 |
06:31:41.12 |
+28:05:42.0 |
HIP 31001 |
18.80 |
| 2026-05-31 12:00 |
06:31:46.77 |
+28:05:33.3 |
HIP 31001 |
20.01 |
| 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 |