메타데이터
| 항목 |
값 |
| Designation |
384P/Kowalski |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2019-10-11T09:33:16.280640Z |
| Orbit solution date (soln_date, UTC) |
2025-02-13T09:13:14Z |
| Obs used |
740 |
| NEO |
Yes |
| M1 |
20.000 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2019-04-27.0000000 |
| e |
0.61538477 |
| q (au) |
1.116494 |
| a (au) |
2.902887 |
| i (deg) |
7.280738 |
| Ω (om, deg) |
354.239718 |
| ω (w, deg) |
37.622709 |
| M (ma, deg) |
326.641274 |
밝기
산란 + 전체 선형
$$
M_a = (19.277 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
19.277 |
| n |
6.000 |
| gf |
0.800 |
| gb |
-0.716 |
| k |
0.856 |
| δ90 |
2.133 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
12:00:44.52 |
-03:06:33.9 |
HIP 58573 |
10.73 |
| 2026-06-01 12:00 |
12:00:43.66 |
-03:06:25.8 |
HIP 58573 |
10.59 |
| 2026-06-02 00:00 |
12:00:43.03 |
-03:06:19.1 |
HIP 58573 |
10.47 |
| 2026-06-02 12:00 |
12:00:42.61 |
-03:06:13.7 |
HIP 58573 |
10.38 |
| 2026-06-03 00:00 |
12:00:42.41 |
-03:06:09.8 |
HIP 58573 |
10.31 |
| 2026-06-03 12:00 |
12:00:42.42 |
-03:06:07.1 |
HIP 58573 |
10.27 |
| 2026-06-04 00:00 |
12:00:42.66 |
-03:06:05.9 |
HIP 58573 |
10.25 |
| 2026-06-04 12:00 |
12:00:43.11 |
-03:06:05.9 |
HIP 58573 |
10.25 |
| 2026-06-05 00:00 |
12:00:43.77 |
-03:06:07.4 |
HIP 58573 |
10.28 |
| 2026-06-05 12:00 |
12:00:44.65 |
-03:06:10.1 |
HIP 58573 |
10.34 |
| 2026-06-06 00:00 |
12:00:45.74 |
-03:06:14.2 |
HIP 58573 |
10.43 |
| 2026-06-06 12:00 |
12:00:47.04 |
-03:06:19.7 |
HIP 58573 |
10.55 |
| 2026-06-07 00:00 |
12:00:48.56 |
-03:06:26.5 |
HIP 58573 |
10.72 |
| 2026-06-07 12:00 |
12:00:50.28 |
-03:06:34.6 |
HIP 58573 |
10.93 |
| 2026-06-08 00:00 |
12:00:52.22 |
-03:06:44.0 |
HIP 58573 |
11.18 |
| 2026-06-08 12:00 |
12:00:54.36 |
-03:06:54.7 |
HIP 58573 |
11.49 |
| 2026-06-09 00:00 |
12:00:56.71 |
-03:07:06.8 |
HIP 58573 |
11.85 |
| 2026-06-09 12:00 |
12:00:59.27 |
-03:07:20.2 |
HIP 58573 |
12.28 |
| 2026-06-10 00:00 |
12:01:02.03 |
-03:07:34.9 |
HIP 58573 |
12.76 |
| 2026-06-10 12:00 |
12:01:05.00 |
-03:07:50.9 |
HIP 58573 |
13.31 |
| 2026-06-11 00:00 |
12:01:08.17 |
-03:08:08.2 |
HIP 58573 |
13.93 |
| 2026-06-11 12:00 |
12:01:11.55 |
-03:08:26.8 |
HIP 58573 |
14.61 |
| 2026-06-12 00:00 |
12:01:15.13 |
-03:08:46.7 |
HIP 58573 |
15.36 |
| 2026-06-12 12:00 |
12:01:18.91 |
-03:09:07.9 |
HIP 58573 |
16.18 |
| 2026-06-13 00:00 |
12:01:22.89 |
-03:09:30.3 |
HIP 58573 |
17.06 |
| 2026-06-13 12:00 |
12:01:27.08 |
-03:09:54.1 |
HIP 58573 |
18.02 |
| 2026-06-14 00:00 |
12:01:31.46 |
-03:10:19.1 |
HIP 58573 |
19.04 |
| 2026-06-14 12:00 |
12:01:36.04 |
-03:10:45.4 |
HIP 58573 |
20.12 |
| 2026-06-15 00:00 |
12:01:40.81 |
-03:11:13.0 |
HIP 58573 |
21.27 |
| 2026-06-15 12:00 |
12:01:45.78 |
-03:11:41.8 |
HIP 58573 |
22.48 |
| 2026-06-16 00:00 |
12:01:50.95 |
-03:12:11.9 |
HIP 58769 |
23.55 |
| 2026-06-16 12:00 |
12:01:56.31 |
-03:12:43.3 |
HIP 58769 |
22.13 |
| 2026-06-17 00:00 |
12:02:01.87 |
-03:13:15.9 |
HIP 58769 |
20.65 |
| 2026-06-17 12:00 |
12:02:07.61 |
-03:13:49.7 |
HIP 58769 |
19.13 |
| 2026-06-18 00:00 |
12:02:13.55 |
-03:14:24.7 |
HIP 58769 |
17.56 |
| 2026-06-18 12:00 |
12:02:19.67 |
-03:15:01.0 |
HIP 58769 |
15.95 |
| 2026-06-19 00:00 |
12:02:25.98 |
-03:15:38.5 |
HIP 58769 |
14.29 |
| 2026-06-19 12:00 |
12:02:32.48 |
-03:16:17.3 |
HIP 58769 |
12.60 |
| 2026-06-20 00:00 |
12:02:39.17 |
-03:16:57.2 |
HIP 58769 |
10.87 |
| 2026-06-20 12:00 |
12:02:46.03 |
-03:17:38.3 |
HIP 58769 |
9.11 |
| 2026-06-21 00:00 |
12:02:53.09 |
-03:18:20.6 |
HIP 58769 |
7.36 |
| 2026-06-21 12:00 |
12:03:00.32 |
-03:19:04.1 |
HIP 58769 |
5.66 |
| 2026-06-22 00:00 |
12:03:07.73 |
-03:19:48.8 |
HIP 58769 |
4.14 |