메타데이터
| 항목 |
값 |
| Designation |
C/2019 Q3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2018-08-20T18:56:05.832960Z |
| Orbit solution date (soln_date, UTC) |
2021-05-02T23:42:43Z |
| Obs used |
85 |
| NEO |
- |
| M1 |
8.700 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2019-08-29T05:55:28.704000Z |
| Discovery magnitude (MPC) |
21.10 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2019-08-20.0000000 |
| e |
1.00470354 |
| q (au) |
7.250302 |
| a (au) |
-1541.455781 |
| i (deg) |
65.538248 |
| Ω (om, deg) |
151.325339 |
| ω (w, deg) |
152.625329 |
| M (ma, deg) |
0.005931 |
밝기
산란 + 전체 선형
$$
M_a = (7.425 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.425 |
| n |
6.000 |
| gf |
0.933 |
| gb |
-0.739 |
| k |
0.805 |
| δ90 |
4.778 |
| 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 |
03:43:32.66 |
-47:00:02.6 |
HIP 17397 |
10.14 |
| 2026-09-20 12:00 |
03:43:29.89 |
-47:01:24.9 |
HIP 17397 |
8.84 |
| 2026-09-21 00:00 |
03:43:27.04 |
-47:02:46.8 |
HIP 17397 |
7.59 |
| 2026-09-21 12:00 |
03:43:24.12 |
-47:04:08.5 |
HIP 17397 |
6.45 |
| 2026-09-22 00:00 |
03:43:21.12 |
-47:05:29.8 |
HIP 17397 |
5.46 |
| 2026-09-22 12:00 |
03:43:18.06 |
-47:06:50.8 |
HIP 17397 |
4.73 |
| 2026-09-23 00:00 |
03:43:14.92 |
-47:08:11.4 |
HIP 17397 |
4.39 |
| 2026-09-23 12:00 |
03:43:11.71 |
-47:09:31.6 |
HIP 17397 |
4.52 |
| 2026-09-24 00:00 |
03:43:08.43 |
-47:10:51.5 |
HIP 17397 |
5.08 |
| 2026-09-24 12:00 |
03:43:05.08 |
-47:12:11.0 |
HIP 17397 |
5.96 |
| 2026-09-25 00:00 |
03:43:01.65 |
-47:13:30.2 |
HIP 17397 |
7.04 |
| 2026-09-25 12:00 |
03:42:58.16 |
-47:14:48.9 |
HIP 17397 |
8.23 |
| 2026-09-26 00:00 |
03:42:54.60 |
-47:16:07.3 |
HIP 17397 |
9.50 |
| 2026-09-26 12:00 |
03:42:50.97 |
-47:17:25.3 |
HIP 17397 |
10.81 |
| 2026-09-27 00:00 |
03:42:47.26 |
-47:18:42.9 |
HIP 17397 |
12.16 |
| 2026-09-27 12:00 |
03:42:43.49 |
-47:20:00.0 |
HIP 17397 |
13.52 |
| 2026-09-28 00:00 |
03:42:39.65 |
-47:21:16.8 |
HIP 17397 |
14.91 |
| 2026-09-28 12:00 |
03:42:35.75 |
-47:22:33.1 |
HIP 17397 |
16.30 |
| 2026-09-29 00:00 |
03:42:31.77 |
-47:23:49.0 |
HIP 17397 |
17.70 |
| 2026-09-29 12:00 |
03:42:27.73 |
-47:25:04.5 |
HIP 17397 |
19.11 |
| 2026-09-30 00:00 |
03:42:23.62 |
-47:26:19.5 |
HIP 17397 |
20.52 |
| 2026-09-30 12:00 |
03:42:19.44 |
-47:27:34.1 |
HIP 17256 |
19.82 |
| 2026-10-01 00:00 |
03:42:15.20 |
-47:28:48.3 |
HIP 17256 |
18.43 |
| 2026-10-01 12:00 |
03:42:10.88 |
-47:30:02.0 |
HIP 17256 |
17.06 |
| 2026-10-02 00:00 |
03:42:06.51 |
-47:31:15.2 |
HIP 17256 |
15.70 |
| 2026-10-02 12:00 |
03:42:02.07 |
-47:32:27.9 |
HIP 17256 |
14.35 |
| 2026-10-03 00:00 |
03:41:57.56 |
-47:33:40.2 |
HIP 17256 |
13.04 |
| 2026-10-03 12:00 |
03:41:52.99 |
-47:34:52.0 |
HIP 17256 |
11.75 |
| 2026-10-04 00:00 |
03:41:48.35 |
-47:36:03.2 |
HIP 17256 |
10.50 |
| 2026-10-04 12:00 |
03:41:43.65 |
-47:37:14.0 |
HIP 17256 |
9.32 |
| 2026-10-05 00:00 |
03:41:38.88 |
-47:38:24.3 |
HIP 17256 |
8.22 |
| 2026-10-05 12:00 |
03:41:34.06 |
-47:39:34.1 |
HIP 17256 |
7.24 |
| 2026-10-06 00:00 |
03:41:29.17 |
-47:40:43.4 |
HIP 17256 |
6.45 |
| 2026-10-06 12:00 |
03:41:24.22 |
-47:41:52.1 |
HIP 17256 |
5.90 |
| 2026-10-07 00:00 |
03:41:19.20 |
-47:43:00.3 |
HIP 17256 |
5.68 |
| 2026-10-07 12:00 |
03:41:14.13 |
-47:44:07.9 |
HIP 17256 |
5.81 |
| 2026-10-08 00:00 |
03:41:08.99 |
-47:45:15.1 |
HIP 17256 |
6.28 |
| 2026-10-08 12:00 |
03:41:03.79 |
-47:46:21.6 |
HIP 17256 |
7.02 |
| 2026-10-09 00:00 |
03:40:58.54 |
-47:47:27.6 |
HIP 17256 |
7.95 |
| 2026-10-09 12:00 |
03:40:53.22 |
-47:48:33.1 |
HIP 17157 |
8.04 |
| 2026-10-10 00:00 |
03:40:47.85 |
-47:49:37.9 |
HIP 17157 |
6.66 |
| 2026-10-10 12:00 |
03:40:42.42 |
-47:50:42.2 |
HIP 17157 |
5.30 |
| 2026-10-11 00:00 |
03:40:36.93 |
-47:51:45.9 |
HIP 17157 |
3.97 |