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) |
| 2026-03-26 00:00 |
06:25:57.42 |
+28:27:52.1 |
HIP 30618 |
27.98 |
| 2026-03-26 12:00 |
06:25:55.88 |
+28:27:42.1 |
HIP 30618 |
27.83 |
| 2026-03-27 00:00 |
06:25:54.42 |
+28:27:32.0 |
HIP 30618 |
27.69 |
| 2026-03-27 12:00 |
06:25:53.04 |
+28:27:21.9 |
HIP 30618 |
27.55 |
| 2026-03-28 00:00 |
06:25:51.74 |
+28:27:11.8 |
HIP 30618 |
27.41 |
| 2026-03-28 12:00 |
06:25:50.51 |
+28:27:01.6 |
HIP 30618 |
27.27 |
| 2026-03-29 00:00 |
06:25:49.35 |
+28:26:51.4 |
HIP 30618 |
27.13 |
| 2026-03-29 12:00 |
06:25:48.28 |
+28:26:41.2 |
HIP 30618 |
26.99 |
| 2026-03-30 00:00 |
06:25:47.27 |
+28:26:31.0 |
HIP 30525 |
26.76 |
| 2026-03-30 12:00 |
06:25:46.35 |
+28:26:20.7 |
HIP 30525 |
26.52 |
| 2026-03-31 00:00 |
06:25:45.49 |
+28:26:10.4 |
HIP 30525 |
26.29 |
| 2026-03-31 12:00 |
06:25:44.71 |
+28:26:00.1 |
HIP 30525 |
26.06 |
| 2026-04-01 00:00 |
06:25:44.01 |
+28:25:49.7 |
HIP 30525 |
25.84 |
| 2026-04-01 12:00 |
06:25:43.38 |
+28:25:39.4 |
HIP 30525 |
25.63 |
| 2026-04-02 00:00 |
06:25:42.82 |
+28:25:29.0 |
HIP 30525 |
25.43 |
| 2026-04-02 12:00 |
06:25:42.34 |
+28:25:18.6 |
HIP 30525 |
25.23 |
| 2026-04-03 00:00 |
06:25:41.93 |
+28:25:08.2 |
HIP 30525 |
25.03 |
| 2026-04-03 12:00 |
06:25:41.60 |
+28:24:57.8 |
HIP 30525 |
24.84 |
| 2026-04-04 00:00 |
06:25:41.33 |
+28:24:47.3 |
HIP 30525 |
24.66 |
| 2026-04-04 12:00 |
06:25:41.14 |
+28:24:36.9 |
HIP 30525 |
24.48 |
| 2026-04-05 00:00 |
06:25:41.02 |
+28:24:26.4 |
HIP 30525 |
24.31 |
| 2026-04-05 12:00 |
06:25:40.98 |
+28:24:15.9 |
HIP 30525 |
24.14 |
| 2026-04-06 00:00 |
06:25:41.00 |
+28:24:05.4 |
HIP 30525 |
23.98 |
| 2026-04-06 12:00 |
06:25:41.10 |
+28:23:54.9 |
HIP 30525 |
23.83 |
| 2026-04-07 00:00 |
06:25:41.27 |
+28:23:44.4 |
HIP 30525 |
23.68 |
| 2026-04-07 12:00 |
06:25:41.51 |
+28:23:33.9 |
HIP 30525 |
23.54 |
| 2026-04-08 00:00 |
06:25:41.82 |
+28:23:23.3 |
HIP 30525 |
23.41 |
| 2026-04-08 12:00 |
06:25:42.20 |
+28:23:12.8 |
HIP 30525 |
23.28 |
| 2026-04-09 00:00 |
06:25:42.65 |
+28:23:02.2 |
HIP 30525 |
23.16 |
| 2026-04-09 12:00 |
06:25:43.17 |
+28:22:51.6 |
HIP 30525 |
23.05 |
| 2026-04-10 00:00 |
06:25:43.76 |
+28:22:41.1 |
HIP 30525 |
22.94 |
| 2026-04-10 12:00 |
06:25:44.42 |
+28:22:30.5 |
HIP 30525 |
22.85 |
| 2026-04-11 00:00 |
06:25:45.15 |
+28:22:19.9 |
HIP 30525 |
22.76 |
| 2026-04-11 12:00 |
06:25:45.95 |
+28:22:09.3 |
HIP 30618 |
22.60 |
| 2026-04-12 00:00 |
06:25:46.81 |
+28:21:58.7 |
HIP 30618 |
22.39 |
| 2026-04-12 12:00 |
06:25:47.75 |
+28:21:48.1 |
HIP 30618 |
22.18 |
| 2026-04-13 00:00 |
06:25:48.75 |
+28:21:37.5 |
HIP 30618 |
21.97 |
| 2026-04-13 12:00 |
06:25:49.82 |
+28:21:26.9 |
HIP 30618 |
21.76 |
| 2026-04-14 00:00 |
06:25:50.96 |
+28:21:16.3 |
HIP 30618 |
21.55 |
| 2026-04-14 12:00 |
06:25:52.17 |
+28:21:05.7 |
HIP 30618 |
21.34 |
| 2026-04-15 00:00 |
06:25:53.44 |
+28:20:55.1 |
HIP 30618 |
21.13 |
| 2026-04-15 12:00 |
06:25:54.78 |
+28:20:44.4 |
HIP 30618 |
20.92 |
| 2026-04-16 00:00 |
06:25:56.18 |
+28:20:33.8 |
HIP 30618 |
20.71 |