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
$$
M_a = (7.421 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.421 |
| n |
6.000 |
| gf |
0.932 |
| gb |
-0.739 |
| k |
0.805 |
| δ90 |
4.736 |
| 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 |
03:03:21.73 |
-43:58:14.9 |
HIP 14224 |
5.01 |
| 2026-03-26 12:00 |
03:03:30.20 |
-43:57:07.3 |
HIP 14262 |
5.55 |
| 2026-03-27 00:00 |
03:03:38.72 |
-43:56:00.2 |
HIP 14262 |
3.65 |
| 2026-03-27 12:00 |
03:03:47.28 |
-43:54:53.6 |
HIP 14262 |
1.75 |
| 2026-03-28 00:00 |
03:03:55.89 |
-43:53:47.4 |
HIP 14262 |
0.15 |
| 2026-03-28 12:00 |
03:04:04.53 |
-43:52:41.7 |
HIP 14262 |
2.06 |
| 2026-03-29 00:00 |
03:04:13.22 |
-43:51:36.5 |
HIP 14262 |
3.96 |
| 2026-03-29 12:00 |
03:04:21.94 |
-43:50:31.7 |
HIP 14262 |
5.87 |
| 2026-03-30 00:00 |
03:04:30.71 |
-43:49:27.4 |
HIP 14262 |
7.78 |
| 2026-03-30 12:00 |
03:04:39.52 |
-43:48:23.7 |
HIP 14262 |
9.69 |
| 2026-03-31 00:00 |
03:04:48.36 |
-43:47:20.4 |
HIP 14262 |
11.60 |
| 2026-03-31 12:00 |
03:04:57.24 |
-43:46:17.6 |
HIP 14395 |
11.31 |
| 2026-04-01 00:00 |
03:05:06.17 |
-43:45:15.3 |
HIP 14395 |
11.05 |
| 2026-04-01 12:00 |
03:05:15.13 |
-43:44:13.5 |
HIP 14395 |
11.12 |
| 2026-04-02 00:00 |
03:05:24.12 |
-43:43:12.2 |
HIP 14395 |
11.49 |
| 2026-04-02 12:00 |
03:05:33.16 |
-43:42:11.4 |
HIP 14395 |
12.15 |
| 2026-04-03 00:00 |
03:05:42.23 |
-43:41:11.1 |
HIP 14395 |
13.06 |
| 2026-04-03 12:00 |
03:05:51.34 |
-43:40:11.3 |
HIP 14395 |
14.16 |
| 2026-04-04 00:00 |
03:06:00.48 |
-43:39:12.0 |
HIP 14395 |
15.41 |
| 2026-04-04 12:00 |
03:06:09.66 |
-43:38:13.2 |
HIP 14395 |
16.79 |
| 2026-04-05 00:00 |
03:06:18.87 |
-43:37:15.0 |
HIP 14395 |
18.26 |
| 2026-04-05 12:00 |
03:06:28.12 |
-43:36:17.3 |
HIP 14395 |
19.80 |
| 2026-04-06 00:00 |
03:06:37.40 |
-43:35:20.1 |
HIP 14395 |
21.40 |
| 2026-04-06 12:00 |
03:06:46.71 |
-43:34:23.4 |
HIP 14395 |
23.05 |
| 2026-04-07 00:00 |
03:06:56.06 |
-43:33:27.3 |
HIP 14395 |
24.74 |
| 2026-04-07 12:00 |
03:07:05.44 |
-43:32:31.7 |
HIP 14580 |
26.19 |
| 2026-04-08 00:00 |
03:07:14.86 |
-43:31:36.6 |
HIP 14580 |
24.60 |
| 2026-04-08 12:00 |
03:07:24.30 |
-43:30:42.1 |
HIP 14580 |
23.07 |
| 2026-04-09 00:00 |
03:07:33.78 |
-43:29:48.1 |
HIP 14580 |
21.61 |
| 2026-04-09 12:00 |
03:07:43.28 |
-43:28:54.7 |
HIP 14580 |
20.24 |
| 2026-04-10 00:00 |
03:07:52.82 |
-43:28:01.8 |
HIP 14580 |
18.98 |
| 2026-04-10 12:00 |
03:08:02.39 |
-43:27:09.4 |
HIP 14580 |
17.85 |
| 2026-04-11 00:00 |
03:08:11.99 |
-43:26:17.7 |
HIP 14580 |
16.87 |
| 2026-04-11 12:00 |
03:08:21.61 |
-43:25:26.4 |
HIP 14580 |
16.09 |
| 2026-04-12 00:00 |
03:08:31.27 |
-43:24:35.8 |
HIP 14580 |
15.52 |
| 2026-04-12 12:00 |
03:08:40.95 |
-43:23:45.7 |
HIP 14580 |
15.20 |
| 2026-04-13 00:00 |
03:08:50.66 |
-43:22:56.1 |
HIP 14580 |
15.13 |
| 2026-04-13 12:00 |
03:09:00.40 |
-43:22:07.2 |
HIP 14580 |
15.32 |
| 2026-04-14 00:00 |
03:09:10.17 |
-43:21:18.8 |
HIP 14580 |
15.77 |
| 2026-04-14 12:00 |
03:09:19.96 |
-43:20:31.0 |
HIP 14580 |
16.44 |
| 2026-04-15 00:00 |
03:09:29.78 |
-43:19:43.7 |
HIP 14580 |
17.33 |
| 2026-04-15 12:00 |
03:09:39.62 |
-43:18:57.1 |
HIP 14580 |
18.38 |
| 2026-04-16 00:00 |
03:09:49.49 |
-43:18:11.0 |
HIP 14793 |
17.48 |