메타데이터
| 항목 |
값 |
| Designation |
286P/Christensen |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2022-05-13T11:04:06.790080Z |
| Orbit solution date (soln_date, UTC) |
2024-06-14T15:42:22Z |
| Obs used |
470 |
| NEO |
- |
| M1 |
16.000 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2018-04-23.0000000 |
| e |
0.42417674 |
| q (au) |
2.369655 |
| a (au) |
4.115246 |
| i (deg) |
17.038782 |
| Ω (om, deg) |
283.947999 |
| ω (w, deg) |
24.688564 |
| M (ma, deg) |
185.095652 |
밝기
산란 + 전체 선형
$$
M_a = (17.621 + 2.108\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
17.621 |
| n |
2.108 |
| gf |
1.000 |
| gb |
-0.682 |
| k |
0.800 |
| 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 |
07:44:33.36 |
+15:16:10.2 |
HIP 37685 |
9.64 |
| 2026-05-12 12:00 |
07:44:47.27 |
+15:15:34.8 |
HIP 37685 |
12.97 |
| 2026-05-13 00:00 |
07:45:01.29 |
+15:14:58.9 |
HIP 37685 |
16.36 |
| 2026-05-13 12:00 |
07:45:15.42 |
+15:14:22.6 |
HIP 37685 |
19.79 |
| 2026-05-14 00:00 |
07:45:29.66 |
+15:13:45.9 |
HIP 37685 |
23.26 |
| 2026-05-14 12:00 |
07:45:44.01 |
+15:13:08.6 |
HIP 37685 |
26.76 |
| 2026-05-15 00:00 |
07:45:58.46 |
+15:12:30.9 |
HIP 38005 |
27.59 |
| 2026-05-15 12:00 |
07:46:13.03 |
+15:11:52.8 |
HIP 38005 |
25.60 |
| 2026-05-16 00:00 |
07:46:27.70 |
+15:11:14.1 |
HIP 38005 |
23.98 |
| 2026-05-16 12:00 |
07:46:42.48 |
+15:10:35.1 |
HIP 38005 |
22.80 |
| 2026-05-17 00:00 |
07:46:57.36 |
+15:09:55.5 |
HIP 38005 |
22.17 |
| 2026-05-17 12:00 |
07:47:12.35 |
+15:09:15.5 |
HIP 38005 |
22.13 |
| 2026-05-18 00:00 |
07:47:27.44 |
+15:08:35.0 |
HIP 38005 |
22.70 |
| 2026-05-18 12:00 |
07:47:42.63 |
+15:07:54.1 |
HIP 38005 |
23.85 |
| 2026-05-19 00:00 |
07:47:57.92 |
+15:07:12.7 |
HIP 38005 |
25.51 |
| 2026-05-19 12:00 |
07:48:13.31 |
+15:06:30.8 |
HIP 38218 |
22.47 |
| 2026-05-20 00:00 |
07:48:28.80 |
+15:05:48.5 |
HIP 38218 |
18.74 |
| 2026-05-20 12:00 |
07:48:44.39 |
+15:05:05.7 |
HIP 38218 |
15.02 |
| 2026-05-21 00:00 |
07:49:00.07 |
+15:04:22.4 |
HIP 38218 |
11.36 |
| 2026-05-21 12:00 |
07:49:15.86 |
+15:03:38.7 |
HIP 38218 |
7.87 |
| 2026-05-22 00:00 |
07:49:31.73 |
+15:02:54.5 |
HIP 38218 |
4.97 |
| 2026-05-22 12:00 |
07:49:47.70 |
+15:02:09.8 |
HIP 38218 |
4.24 |
| 2026-05-23 00:00 |
07:50:03.76 |
+15:01:24.7 |
HIP 38218 |
6.51 |
| 2026-05-23 12:00 |
07:50:19.92 |
+15:00:39.1 |
HIP 38218 |
9.92 |
| 2026-05-24 00:00 |
07:50:36.17 |
+14:59:53.1 |
HIP 38276 |
9.45 |
| 2026-05-24 12:00 |
07:50:52.50 |
+14:59:06.6 |
HIP 38276 |
9.98 |
| 2026-05-25 00:00 |
07:51:08.93 |
+14:58:19.6 |
HIP 38276 |
11.94 |
| 2026-05-25 12:00 |
07:51:25.44 |
+14:57:32.2 |
HIP 38276 |
14.78 |
| 2026-05-26 00:00 |
07:51:42.04 |
+14:56:44.3 |
HIP 38276 |
18.12 |
| 2026-05-26 12:00 |
07:51:58.73 |
+14:55:55.9 |
HIP 38524 |
19.65 |
| 2026-05-27 00:00 |
07:52:15.51 |
+14:55:07.1 |
HIP 38524 |
15.58 |
| 2026-05-27 12:00 |
07:52:32.36 |
+14:54:17.9 |
HIP 38524 |
11.53 |
| 2026-05-28 00:00 |
07:52:49.31 |
+14:53:28.1 |
HIP 38524 |
7.58 |
| 2026-05-28 12:00 |
07:53:06.33 |
+14:52:37.9 |
HIP 38524 |
4.09 |
| 2026-05-29 00:00 |
07:53:23.44 |
+14:51:47.3 |
HIP 38524 |
3.36 |
| 2026-05-29 12:00 |
07:53:40.63 |
+14:50:56.1 |
HIP 38524 |
6.45 |
| 2026-05-30 00:00 |
07:53:57.90 |
+14:50:04.6 |
HIP 38524 |
10.41 |
| 2026-05-30 12:00 |
07:54:15.25 |
+14:49:12.5 |
HIP 38524 |
14.57 |
| 2026-05-31 00:00 |
07:54:32.68 |
+14:48:20.0 |
HIP 38524 |
18.80 |
| 2026-05-31 12:00 |
07:54:50.19 |
+14:47:27.0 |
HIP 38524 |
23.07 |
| 2026-06-01 00:00 |
07:55:07.78 |
+14:46:33.6 |
HIP 38524 |
27.39 |
| 2026-06-01 12:00 |
07:55:25.44 |
+14:45:39.7 |
HIP 38837 |
24.42 |
| 2026-06-02 00:00 |
07:55:43.18 |
+14:44:45.4 |
HIP 38837 |
21.38 |