메타데이터
| 항목 |
값 |
| Designation |
303P/NEAT |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-10-10T07:58:46.963200Z |
| Orbit solution date (soln_date, UTC) |
2025-09-09T12:42:51Z |
| Obs used |
251 |
| NEO |
- |
| M1 |
16.200 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2010-04-12.0000000 |
| e |
0.51039462 |
| q (au) |
2.483970 |
| a (au) |
5.073413 |
| i (deg) |
7.038016 |
| Ω (om, deg) |
348.196199 |
| ω (w, deg) |
356.711414 |
| M (ma, deg) |
218.350575 |
밝기
산란 + 전체 선형
$$
M_a = (9.989 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.989 |
| n |
6.000 |
| gf |
0.999 |
| gb |
-1.000 |
| k |
1.000 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
03:11:45.52 |
+22:38:08.3 |
HIP 14807 |
14.87 |
| 2026-07-29 12:00 |
03:12:20.92 |
+22:41:41.9 |
HIP 14908 |
11.17 |
| 2026-07-30 00:00 |
03:12:56.13 |
+22:45:14.6 |
HIP 14908 |
10.48 |
| 2026-07-30 12:00 |
03:13:31.14 |
+22:48:46.3 |
HIP 15072 |
13.55 |
| 2026-07-31 00:00 |
03:14:05.96 |
+22:52:17.0 |
HIP 15072 |
5.57 |
| 2026-07-31 12:00 |
03:14:40.59 |
+22:55:46.8 |
HIP 15072 |
5.59 |
| 2026-08-01 00:00 |
03:15:15.02 |
+22:59:15.6 |
HIP 15072 |
13.48 |
| 2026-08-01 12:00 |
03:15:49.25 |
+23:02:43.4 |
HIP 15267 |
16.33 |
| 2026-08-02 00:00 |
03:16:23.28 |
+23:06:10.3 |
HIP 15267 |
7.88 |
| 2026-08-02 12:00 |
03:16:57.11 |
+23:09:36.2 |
HIP 15267 |
1.99 |
| 2026-08-03 00:00 |
03:17:30.74 |
+23:13:01.2 |
HIP 15267 |
9.45 |
| 2026-08-03 12:00 |
03:18:04.16 |
+23:16:25.2 |
HIP 15267 |
17.77 |
| 2026-08-04 00:00 |
03:18:37.37 |
+23:19:48.2 |
HIP 15267 |
26.08 |
| 2026-08-04 12:00 |
03:19:10.38 |
+23:23:10.3 |
HIP 15552 |
24.39 |
| 2026-08-05 00:00 |
03:19:43.17 |
+23:26:31.4 |
HIP 15552 |
17.21 |
| 2026-08-05 12:00 |
03:20:15.75 |
+23:29:51.6 |
HIP 15552 |
11.57 |
| 2026-08-06 00:00 |
03:20:48.11 |
+23:33:10.9 |
HIP 15552 |
10.24 |
| 2026-08-06 12:00 |
03:21:20.26 |
+23:36:29.2 |
HIP 15552 |
14.37 |
| 2026-08-07 00:00 |
03:21:52.19 |
+23:39:46.5 |
HIP 15552 |
20.89 |
| 2026-08-07 12:00 |
03:22:23.89 |
+23:43:02.9 |
HIP 15844 |
23.79 |
| 2026-08-08 00:00 |
03:22:55.37 |
+23:46:18.3 |
HIP 15844 |
16.26 |
| 2026-08-08 12:00 |
03:23:26.63 |
+23:49:32.8 |
HIP 15844 |
9.40 |
| 2026-08-09 00:00 |
03:23:57.65 |
+23:52:46.3 |
HIP 15844 |
5.99 |
| 2026-08-09 12:00 |
03:24:28.45 |
+23:55:58.9 |
HIP 15844 |
10.20 |
| 2026-08-10 00:00 |
03:24:59.01 |
+23:59:10.5 |
HIP 15844 |
17.04 |
| 2026-08-10 12:00 |
03:25:29.34 |
+24:02:21.2 |
HIP 15844 |
24.33 |
| 2026-08-11 00:00 |
03:25:59.42 |
+24:05:31.0 |
HIP 16074 |
19.98 |
| 2026-08-11 12:00 |
03:26:29.28 |
+24:08:39.8 |
HIP 16074 |
13.20 |
| 2026-08-12 00:00 |
03:26:58.88 |
+24:11:47.6 |
HIP 16074 |
7.86 |
| 2026-08-12 12:00 |
03:27:28.25 |
+24:14:54.5 |
HIP 16132 |
6.26 |
| 2026-08-13 00:00 |
03:27:57.37 |
+24:18:00.5 |
HIP 16132 |
7.26 |
| 2026-08-13 12:00 |
03:28:26.24 |
+24:21:05.5 |
HIP 16132 |
13.12 |
| 2026-08-14 00:00 |
03:28:54.87 |
+24:24:09.6 |
HIP 16305 |
18.42 |
| 2026-08-14 12:00 |
03:29:23.24 |
+24:27:12.7 |
HIP 16305 |
11.43 |
| 2026-08-15 00:00 |
03:29:51.36 |
+24:30:14.9 |
HIP 16305 |
4.96 |
| 2026-08-15 12:00 |
03:30:19.22 |
+24:33:16.2 |
HIP 16305 |
4.32 |
| 2026-08-16 00:00 |
03:30:46.83 |
+24:36:16.5 |
HIP 16305 |
10.50 |
| 2026-08-16 12:00 |
03:31:14.17 |
+24:39:15.9 |
HIP 16305 |
17.22 |
| 2026-08-17 00:00 |
03:31:41.26 |
+24:42:14.3 |
HIP 16305 |
23.98 |
| 2026-08-17 12:00 |
03:32:08.08 |
+24:45:11.9 |
HIP 16635 |
26.92 |
| 2026-08-18 00:00 |
03:32:34.64 |
+24:48:08.4 |
HIP 16635 |
20.33 |
| 2026-08-18 12:00 |
03:33:00.94 |
+24:51:04.1 |
HIP 16635 |
13.92 |
| 2026-08-19 00:00 |
03:33:26.96 |
+24:53:58.9 |
HIP 16635 |
7.98 |