메타데이터
| 항목 |
값 |
| Designation |
C/2019 L1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2019-08-11T06:51:01.670400Z |
| Orbit solution date (soln_date, UTC) |
2023-01-14T00:12:29Z |
| Obs used |
103 |
| NEO |
- |
| M1 |
13.500 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2019-06-12T12:39:55.872000Z |
| Discovery magnitude (MPC) |
20.10 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2019-07-10.0000000 |
| e |
0.70662278 |
| q (au) |
2.890226 |
| a (au) |
9.851568 |
| i (deg) |
9.993558 |
| Ω (om, deg) |
254.409692 |
| ω (w, deg) |
49.919599 |
| M (ma, deg) |
358.970912 |
밝기
산란 + 전체 선형
$$
M_a = (11.057 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.057 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.790 |
| k |
0.995 |
| 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) |
| 2026-07-29 00:00 |
06:33:09.97 |
+19:47:37.2 |
HIP 31249 |
3.36 |
| 2026-07-29 12:00 |
06:33:19.24 |
+19:47:22.5 |
HIP 31249 |
3.31 |
| 2026-07-30 00:00 |
06:33:28.48 |
+19:47:07.8 |
HIP 31249 |
4.50 |
| 2026-07-30 12:00 |
06:33:37.69 |
+19:46:53.0 |
HIP 31249 |
6.25 |
| 2026-07-31 00:00 |
06:33:46.87 |
+19:46:38.1 |
HIP 31249 |
8.20 |
| 2026-07-31 12:00 |
06:33:56.01 |
+19:46:23.2 |
HIP 31249 |
10.23 |
| 2026-08-01 00:00 |
06:34:05.12 |
+19:46:08.2 |
HIP 31249 |
12.30 |
| 2026-08-01 12:00 |
06:34:14.20 |
+19:45:53.2 |
HIP 31249 |
14.39 |
| 2026-08-02 00:00 |
06:34:23.24 |
+19:45:38.1 |
HIP 31249 |
16.49 |
| 2026-08-02 12:00 |
06:34:32.24 |
+19:45:22.9 |
HIP 31249 |
18.59 |
| 2026-08-03 00:00 |
06:34:41.21 |
+19:45:07.7 |
HIP 31368 |
19.39 |
| 2026-08-03 12:00 |
06:34:50.14 |
+19:44:52.4 |
HIP 31368 |
19.30 |
| 2026-08-04 00:00 |
06:34:59.03 |
+19:44:37.1 |
HIP 31368 |
19.44 |
| 2026-08-04 12:00 |
06:35:07.89 |
+19:44:21.7 |
HIP 31368 |
19.80 |
| 2026-08-05 00:00 |
06:35:16.71 |
+19:44:06.3 |
HIP 31368 |
20.37 |
| 2026-08-05 12:00 |
06:35:25.49 |
+19:43:50.8 |
HIP 31368 |
21.12 |
| 2026-08-06 00:00 |
06:35:34.23 |
+19:43:35.3 |
HIP 31536 |
20.81 |
| 2026-08-06 12:00 |
06:35:42.94 |
+19:43:19.7 |
HIP 31626 |
19.47 |
| 2026-08-07 00:00 |
06:35:51.60 |
+19:43:04.1 |
HIP 31626 |
17.47 |
| 2026-08-07 12:00 |
06:36:00.22 |
+19:42:48.4 |
HIP 31626 |
15.49 |
| 2026-08-08 00:00 |
06:36:08.81 |
+19:42:32.7 |
HIP 31626 |
13.55 |
| 2026-08-08 12:00 |
06:36:17.35 |
+19:42:16.9 |
HIP 31626 |
11.65 |
| 2026-08-09 00:00 |
06:36:25.85 |
+19:42:01.1 |
HIP 31626 |
9.80 |
| 2026-08-09 12:00 |
06:36:34.31 |
+19:41:45.2 |
HIP 31626 |
8.06 |
| 2026-08-10 00:00 |
06:36:42.73 |
+19:41:29.3 |
HIP 31626 |
6.47 |
| 2026-08-10 12:00 |
06:36:51.10 |
+19:41:13.3 |
HIP 31626 |
5.18 |
| 2026-08-11 00:00 |
06:36:59.43 |
+19:40:57.4 |
HIP 31626 |
4.44 |
| 2026-08-11 12:00 |
06:37:07.71 |
+19:40:41.3 |
HIP 31626 |
4.53 |
| 2026-08-12 00:00 |
06:37:15.96 |
+19:40:25.2 |
HIP 31626 |
5.38 |
| 2026-08-12 12:00 |
06:37:24.15 |
+19:40:09.1 |
HIP 31626 |
6.71 |
| 2026-08-13 00:00 |
06:37:32.30 |
+19:39:53.0 |
HIP 31626 |
8.27 |
| 2026-08-13 12:00 |
06:37:40.41 |
+19:39:36.8 |
HIP 31626 |
9.96 |
| 2026-08-14 00:00 |
06:37:48.47 |
+19:39:20.6 |
HIP 31626 |
11.72 |
| 2026-08-14 12:00 |
06:37:56.48 |
+19:39:04.3 |
HIP 31626 |
13.51 |
| 2026-08-15 00:00 |
06:38:04.44 |
+19:38:48.0 |
HIP 31810 |
14.18 |
| 2026-08-15 12:00 |
06:38:12.36 |
+19:38:31.7 |
HIP 31810 |
12.31 |
| 2026-08-16 00:00 |
06:38:20.22 |
+19:38:15.3 |
HIP 31810 |
10.44 |
| 2026-08-16 12:00 |
06:38:28.04 |
+19:37:59.0 |
HIP 31810 |
8.59 |
| 2026-08-17 00:00 |
06:38:35.81 |
+19:37:42.6 |
HIP 31810 |
6.76 |
| 2026-08-17 12:00 |
06:38:43.53 |
+19:37:26.1 |
HIP 31810 |
4.95 |
| 2026-08-18 00:00 |
06:38:51.20 |
+19:37:09.7 |
HIP 31810 |
3.18 |
| 2026-08-18 12:00 |
06:38:58.82 |
+19:36:53.2 |
HIP 31810 |
1.55 |
| 2026-08-19 00:00 |
06:39:06.39 |
+19:36:36.7 |
HIP 31810 |
1.15 |