메타데이터
| 항목 |
값 |
| Designation |
C/2020 N1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2021-03-12T05:28:54.451200Z |
| Orbit solution date (soln_date, UTC) |
2022-04-08T01:42:44Z |
| Obs used |
856 |
| NEO |
- |
| M1 |
15.500 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2020-07-03T13:50:17.635200Z |
| Discovery magnitude (MPC) |
20.75 i |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2020-11-27.0000000 |
| e |
1.00050582 |
| q (au) |
1.320692 |
| a (au) |
-2610.973764 |
| i (deg) |
29.703772 |
| Ω (om, deg) |
279.981658 |
| ω (w, deg) |
186.772725 |
| M (ma, deg) |
-0.000777 |
밝기
산란 + 전체 선형
$$
M_a = (16.174 + 3.247\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.174 |
| n |
3.247 |
| gf |
1.000 |
| gb |
-0.862 |
| 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) |
| 2026-03-26 00:00 |
17:08:28.99 |
-36:24:46.9 |
HIP 83874 |
13.81 |
| 2026-03-26 12:00 |
17:08:27.02 |
-36:25:05.4 |
HIP 83874 |
13.53 |
| 2026-03-27 00:00 |
17:08:24.96 |
-36:25:23.8 |
HIP 83874 |
13.27 |
| 2026-03-27 12:00 |
17:08:22.83 |
-36:25:42.0 |
HIP 83874 |
13.02 |
| 2026-03-28 00:00 |
17:08:20.61 |
-36:26:00.0 |
HIP 83874 |
12.80 |
| 2026-03-28 12:00 |
17:08:18.31 |
-36:26:17.9 |
HIP 83874 |
12.61 |
| 2026-03-29 00:00 |
17:08:15.93 |
-36:26:35.7 |
HIP 83874 |
12.44 |
| 2026-03-29 12:00 |
17:08:13.48 |
-36:26:53.3 |
HIP 83874 |
12.31 |
| 2026-03-30 00:00 |
17:08:10.94 |
-36:27:10.8 |
HIP 83874 |
12.20 |
| 2026-03-30 12:00 |
17:08:08.32 |
-36:27:28.0 |
HIP 83874 |
12.14 |
| 2026-03-31 00:00 |
17:08:05.62 |
-36:27:45.2 |
HIP 83874 |
12.11 |
| 2026-03-31 12:00 |
17:08:02.84 |
-36:28:02.1 |
HIP 83874 |
12.13 |
| 2026-04-01 00:00 |
17:07:59.98 |
-36:28:18.9 |
HIP 83874 |
12.18 |
| 2026-04-01 12:00 |
17:07:57.04 |
-36:28:35.5 |
HIP 83874 |
12.29 |
| 2026-04-02 00:00 |
17:07:54.02 |
-36:28:52.0 |
HIP 83874 |
12.43 |
| 2026-04-02 12:00 |
17:07:50.92 |
-36:29:08.3 |
HIP 83874 |
12.63 |
| 2026-04-03 00:00 |
17:07:47.75 |
-36:29:24.4 |
HIP 83874 |
12.87 |
| 2026-04-03 12:00 |
17:07:44.49 |
-36:29:40.3 |
HIP 83874 |
13.15 |
| 2026-04-04 00:00 |
17:07:41.16 |
-36:29:56.1 |
HIP 83874 |
13.48 |
| 2026-04-04 12:00 |
17:07:37.75 |
-36:30:11.6 |
HIP 83874 |
13.86 |
| 2026-04-05 00:00 |
17:07:34.26 |
-36:30:27.0 |
HIP 83874 |
14.27 |
| 2026-04-05 12:00 |
17:07:30.70 |
-36:30:42.2 |
HIP 83745 |
14.23 |
| 2026-04-06 00:00 |
17:07:27.05 |
-36:30:57.2 |
HIP 83745 |
13.67 |
| 2026-04-06 12:00 |
17:07:23.33 |
-36:31:12.1 |
HIP 83745 |
13.13 |
| 2026-04-07 00:00 |
17:07:19.54 |
-36:31:26.7 |
HIP 83745 |
12.62 |
| 2026-04-07 12:00 |
17:07:15.66 |
-36:31:41.2 |
HIP 83745 |
12.13 |
| 2026-04-08 00:00 |
17:07:11.71 |
-36:31:55.4 |
HIP 83745 |
11.68 |
| 2026-04-08 12:00 |
17:07:07.69 |
-36:32:09.4 |
HIP 83745 |
11.27 |
| 2026-04-09 00:00 |
17:07:03.59 |
-36:32:23.3 |
HIP 83745 |
10.91 |
| 2026-04-09 12:00 |
17:06:59.41 |
-36:32:36.9 |
HIP 83745 |
10.61 |
| 2026-04-10 00:00 |
17:06:55.16 |
-36:32:50.4 |
HIP 83745 |
10.38 |
| 2026-04-10 12:00 |
17:06:50.83 |
-36:33:03.6 |
HIP 83745 |
10.23 |
| 2026-04-11 00:00 |
17:06:46.43 |
-36:33:16.7 |
HIP 83745 |
10.15 |
| 2026-04-11 12:00 |
17:06:41.96 |
-36:33:29.5 |
HIP 83745 |
10.17 |
| 2026-04-12 00:00 |
17:06:37.41 |
-36:33:42.1 |
HIP 83745 |
10.28 |
| 2026-04-12 12:00 |
17:06:32.79 |
-36:33:54.5 |
HIP 83646 |
9.49 |
| 2026-04-13 00:00 |
17:06:28.10 |
-36:34:06.7 |
HIP 83646 |
8.58 |
| 2026-04-13 12:00 |
17:06:23.33 |
-36:34:18.6 |
HIP 83646 |
7.67 |
| 2026-04-14 00:00 |
17:06:18.49 |
-36:34:30.4 |
HIP 83646 |
6.77 |
| 2026-04-14 12:00 |
17:06:13.58 |
-36:34:41.9 |
HIP 83646 |
5.88 |
| 2026-04-15 00:00 |
17:06:08.60 |
-36:34:53.2 |
HIP 83646 |
5.02 |
| 2026-04-15 12:00 |
17:06:03.55 |
-36:35:04.2 |
HIP 83646 |
4.21 |
| 2026-04-16 00:00 |
17:05:58.43 |
-36:35:15.0 |
HIP 83646 |
3.51 |