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) |
| 2026-05-12 00:00 |
12:04:27.01 |
-03:31:05.6 |
HIP 58769 |
19.83 |
| 2026-05-12 12:00 |
12:04:16.86 |
-03:30:01.4 |
HIP 58769 |
17.08 |
| 2026-05-13 00:00 |
12:04:06.95 |
-03:28:58.6 |
HIP 58769 |
14.40 |
| 2026-05-13 12:00 |
12:03:57.28 |
-03:27:57.2 |
HIP 58769 |
11.78 |
| 2026-05-14 00:00 |
12:03:47.84 |
-03:26:57.1 |
HIP 58769 |
9.22 |
| 2026-05-14 12:00 |
12:03:38.63 |
-03:25:58.4 |
HIP 58769 |
6.73 |
| 2026-05-15 00:00 |
12:03:29.66 |
-03:25:01.2 |
HIP 58769 |
4.30 |
| 2026-05-15 12:00 |
12:03:20.93 |
-03:24:05.3 |
HIP 58769 |
1.96 |
| 2026-05-16 00:00 |
12:03:12.44 |
-03:23:10.8 |
HIP 58769 |
0.57 |
| 2026-05-16 12:00 |
12:03:04.19 |
-03:22:17.7 |
HIP 58769 |
2.67 |
| 2026-05-17 00:00 |
12:02:56.17 |
-03:21:26.1 |
HIP 58769 |
4.83 |
| 2026-05-17 12:00 |
12:02:48.39 |
-03:20:35.8 |
HIP 58769 |
6.94 |
| 2026-05-18 00:00 |
12:02:40.84 |
-03:19:47.0 |
HIP 58769 |
8.99 |
| 2026-05-18 12:00 |
12:02:33.54 |
-03:18:59.5 |
HIP 58769 |
10.98 |
| 2026-05-19 00:00 |
12:02:26.47 |
-03:18:13.5 |
HIP 58769 |
12.90 |
| 2026-05-19 12:00 |
12:02:19.64 |
-03:17:28.9 |
HIP 58769 |
14.76 |
| 2026-05-20 00:00 |
12:02:13.04 |
-03:16:45.8 |
HIP 58769 |
16.55 |
| 2026-05-20 12:00 |
12:02:06.68 |
-03:16:04.0 |
HIP 58769 |
18.29 |
| 2026-05-21 00:00 |
12:02:00.56 |
-03:15:23.7 |
HIP 58769 |
19.96 |
| 2026-05-21 12:00 |
12:01:54.68 |
-03:14:44.8 |
HIP 58769 |
21.56 |
| 2026-05-22 00:00 |
12:01:49.03 |
-03:14:07.4 |
HIP 58609 |
22.57 |
| 2026-05-22 12:00 |
12:01:43.61 |
-03:13:31.3 |
HIP 58609 |
22.56 |
| 2026-05-23 00:00 |
12:01:38.43 |
-03:12:56.7 |
HIP 58573 |
22.17 |
| 2026-05-23 12:00 |
12:01:33.48 |
-03:12:23.5 |
HIP 58573 |
20.96 |
| 2026-05-24 00:00 |
12:01:28.77 |
-03:11:51.7 |
HIP 58573 |
19.83 |
| 2026-05-24 12:00 |
12:01:24.29 |
-03:11:21.3 |
HIP 58573 |
18.77 |
| 2026-05-25 00:00 |
12:01:20.04 |
-03:10:52.3 |
HIP 58573 |
17.78 |
| 2026-05-25 12:00 |
12:01:16.02 |
-03:10:24.8 |
HIP 58573 |
16.87 |
| 2026-05-26 00:00 |
12:01:12.24 |
-03:09:58.6 |
HIP 58573 |
16.03 |
| 2026-05-26 12:00 |
12:01:08.68 |
-03:09:33.9 |
HIP 58573 |
15.26 |
| 2026-05-27 00:00 |
12:01:05.35 |
-03:09:10.6 |
HIP 58573 |
14.55 |
| 2026-05-27 12:00 |
12:01:02.25 |
-03:08:48.6 |
HIP 58573 |
13.92 |
| 2026-05-28 00:00 |
12:00:59.38 |
-03:08:28.1 |
HIP 58573 |
13.35 |
| 2026-05-28 12:00 |
12:00:56.74 |
-03:08:09.0 |
HIP 58573 |
12.84 |
| 2026-05-29 00:00 |
12:00:54.32 |
-03:07:51.2 |
HIP 58573 |
12.40 |
| 2026-05-29 12:00 |
12:00:52.13 |
-03:07:34.9 |
HIP 58573 |
12.00 |
| 2026-05-30 00:00 |
12:00:50.16 |
-03:07:19.9 |
HIP 58573 |
11.66 |
| 2026-05-30 12:00 |
12:00:48.42 |
-03:07:06.3 |
HIP 58573 |
11.37 |
| 2026-05-31 00:00 |
12:00:46.90 |
-03:06:54.1 |
HIP 58573 |
11.12 |
| 2026-05-31 12:00 |
12:00:45.60 |
-03:06:43.3 |
HIP 58573 |
10.91 |
| 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 |