메타데이터
| 항목 |
값 |
| Designation |
243P/NEAT |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2011-03-02T16:36:03.709440Z |
| Orbit solution date (soln_date, UTC) |
2026-05-05T09:12:21Z |
| Obs used |
825 |
| NEO |
- |
| M1 |
9.300 |
| K1 |
18.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2012-03-16.0000000 |
| e |
0.35912835 |
| q (au) |
2.455172 |
| a (au) |
3.830988 |
| i (deg) |
7.639598 |
| Ω (om, deg) |
87.672761 |
| ω (w, deg) |
283.771605 |
| M (ma, deg) |
49.857461 |
밝기
산란 + 전체 선형
$$
M_a = (11.191 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.191 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.819 |
| k |
0.998 |
| 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) |
| 2026-05-12 00:00 |
02:31:30.93 |
+10:14:06.6 |
HIP 11864 |
23.90 |
| 2026-05-12 12:00 |
02:32:25.95 |
+10:18:59.8 |
HIP 11864 |
14.45 |
| 2026-05-13 00:00 |
02:33:20.97 |
+10:23:52.0 |
HIP 11864 |
16.12 |
| 2026-05-13 12:00 |
02:34:15.98 |
+10:28:43.1 |
HIP 11985 |
17.84 |
| 2026-05-14 00:00 |
02:35:10.99 |
+10:33:33.2 |
HIP 11985 |
15.09 |
| 2026-05-14 12:00 |
02:36:05.99 |
+10:38:22.1 |
HIP 11985 |
23.44 |
| 2026-05-15 00:00 |
02:37:00.99 |
+10:43:10.0 |
HIP 12194 |
20.39 |
| 2026-05-15 12:00 |
02:37:55.98 |
+10:47:56.9 |
HIP 12354 |
19.21 |
| 2026-05-16 00:00 |
02:38:50.97 |
+10:52:42.6 |
HIP 12354 |
14.80 |
| 2026-05-16 12:00 |
02:39:45.95 |
+10:57:27.2 |
HIP 12354 |
21.88 |
| 2026-05-17 00:00 |
02:40:40.92 |
+11:02:10.8 |
HIP 12647 |
31.87 |
| 2026-05-17 12:00 |
02:41:35.88 |
+11:06:53.2 |
HIP 12647 |
25.89 |
| 2026-05-18 00:00 |
02:42:30.84 |
+11:11:34.6 |
HIP 12647 |
27.07 |
| 2026-05-18 12:00 |
02:43:25.79 |
+11:16:14.8 |
HIP 12787 |
23.02 |
| 2026-05-19 00:00 |
02:44:20.72 |
+11:20:53.9 |
HIP 12787 |
23.21 |
| 2026-05-19 12:00 |
02:45:15.65 |
+11:25:31.9 |
HIP 12929 |
25.85 |
| 2026-05-20 00:00 |
02:46:10.57 |
+11:30:08.8 |
HIP 12929 |
16.48 |
| 2026-05-20 12:00 |
02:47:05.47 |
+11:34:44.5 |
HIP 12929 |
16.72 |
| 2026-05-21 00:00 |
02:48:00.36 |
+11:39:19.1 |
HIP 12929 |
26.29 |
| 2026-05-21 12:00 |
02:48:55.24 |
+11:43:52.5 |
HIP 13228 |
21.50 |
| 2026-05-22 00:00 |
02:49:50.11 |
+11:48:24.9 |
HIP 13246 |
10.52 |
| 2026-05-22 12:00 |
02:50:44.97 |
+11:52:56.0 |
HIP 13246 |
3.69 |
| 2026-05-23 00:00 |
02:51:39.81 |
+11:57:26.1 |
HIP 13246 |
17.81 |
| 2026-05-23 12:00 |
02:52:34.64 |
+12:01:55.0 |
HIP 13461 |
10.96 |
| 2026-05-24 00:00 |
02:53:29.45 |
+12:06:22.7 |
HIP 13461 |
6.62 |
| 2026-05-24 12:00 |
02:54:24.25 |
+12:10:49.3 |
HIP 13461 |
19.13 |
| 2026-05-25 00:00 |
02:55:19.03 |
+12:15:14.7 |
HIP 13669 |
13.22 |
| 2026-05-25 12:00 |
02:56:13.80 |
+12:19:38.9 |
HIP 13669 |
4.56 |
| 2026-05-26 00:00 |
02:57:08.56 |
+12:24:02.0 |
HIP 13669 |
16.22 |
| 2026-05-26 12:00 |
02:58:03.29 |
+12:28:23.9 |
HIP 13669 |
30.01 |
| 2026-05-27 00:00 |
02:58:58.02 |
+12:32:44.7 |
HIP 13921 |
33.03 |
| 2026-05-27 12:00 |
02:59:52.72 |
+12:37:04.3 |
HIP 14037 |
25.57 |
| 2026-05-28 00:00 |
03:00:47.41 |
+12:41:22.7 |
HIP 14037 |
17.72 |
| 2026-05-28 12:00 |
03:01:42.08 |
+12:45:39.9 |
HIP 14037 |
19.15 |
| 2026-05-29 00:00 |
03:02:36.74 |
+12:49:56.0 |
HIP 14111 |
26.35 |
| 2026-05-29 12:00 |
03:03:31.37 |
+12:54:10.9 |
HIP 14343 |
25.63 |
| 2026-05-30 00:00 |
03:04:25.99 |
+12:58:24.6 |
HIP 14343 |
20.35 |
| 2026-05-30 12:00 |
03:05:20.59 |
+13:02:37.1 |
HIP 14439 |
17.62 |
| 2026-05-31 00:00 |
03:06:15.17 |
+13:06:48.4 |
HIP 14439 |
4.90 |
| 2026-05-31 12:00 |
03:07:09.73 |
+13:10:58.5 |
HIP 14439 |
11.21 |
| 2026-06-01 00:00 |
03:08:04.28 |
+13:15:07.5 |
HIP 14579 |
5.34 |
| 2026-06-01 12:00 |
03:08:58.80 |
+13:19:15.2 |
HIP 14579 |
14.40 |
| 2026-06-02 00:00 |
03:09:53.30 |
+13:23:21.7 |
HIP 14694 |
22.71 |