159P/LONEOS
메타데이터
| 항목 |
값 |
| Designation |
159P/LONEOS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2018-05-23T04:51:35.352000Z |
| Orbit solution date (soln_date, UTC) |
2024-02-25T22:13:01Z |
| Obs used |
880 |
| NEO |
- |
| M1 |
12.900 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2015-04-25.0000000 |
| e |
0.38206863 |
| q (au) |
3.621139 |
| a (au) |
5.860099 |
| i (deg) |
23.462312 |
| Ω (om, deg) |
55.063749 |
| ω (w, deg) |
4.872824 |
| M (ma, deg) |
281.892773 |
밝기
산란 + 전체 선형
$$
M_a = (11.771 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.771 |
| n |
2.000 |
| gf |
0.817 |
| gb |
-0.500 |
| k |
1.000 |
| δ90 |
1.636 |
| 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) |
| 2026-02-03 00:00 |
16:40:54.93 |
-26:50:10.4 |
HIP 81747 |
20.25 |
| 2026-02-03 12:00 |
16:41:06.13 |
-26:51:08.3 |
HIP 81747 |
18.03 |
| 2026-02-04 00:00 |
16:41:17.23 |
-26:52:06.1 |
HIP 81747 |
15.96 |
| 2026-02-04 12:00 |
16:41:28.24 |
-26:53:03.9 |
HIP 81747 |
14.10 |
| 2026-02-05 00:00 |
16:41:39.14 |
-26:54:01.5 |
HIP 81747 |
12.52 |
| 2026-02-05 12:00 |
16:41:49.95 |
-26:54:59.0 |
HIP 81747 |
11.34 |
| 2026-02-06 00:00 |
16:42:00.66 |
-26:55:56.4 |
HIP 81747 |
10.66 |
| 2026-02-06 12:00 |
16:42:11.26 |
-26:56:53.8 |
HIP 81747 |
10.57 |
| 2026-02-07 00:00 |
16:42:21.76 |
-26:57:51.0 |
HIP 81747 |
11.07 |
| 2026-02-07 12:00 |
16:42:32.16 |
-26:58:48.1 |
HIP 81747 |
12.07 |
| 2026-02-08 00:00 |
16:42:42.46 |
-26:59:45.1 |
HIP 81821 |
11.55 |
| 2026-02-08 12:00 |
16:42:52.65 |
-27:00:42.0 |
HIP 81821 |
10.63 |
| 2026-02-09 00:00 |
16:43:02.74 |
-27:01:38.9 |
HIP 81821 |
10.23 |
| 2026-02-09 12:00 |
16:43:12.72 |
-27:02:35.6 |
HIP 81821 |
10.39 |
| 2026-02-10 00:00 |
16:43:22.59 |
-27:03:32.2 |
HIP 81821 |
11.06 |
| 2026-02-10 12:00 |
16:43:32.36 |
-27:04:28.7 |
HIP 81821 |
12.16 |
| 2026-02-11 00:00 |
16:43:42.01 |
-27:05:25.1 |
HIP 81821 |
13.56 |
| 2026-02-11 12:00 |
16:43:51.56 |
-27:06:21.4 |
HIP 81821 |
15.18 |
| 2026-02-12 00:00 |
16:44:01.00 |
-27:07:17.6 |
HIP 81821 |
16.94 |
| 2026-02-12 12:00 |
16:44:10.33 |
-27:08:13.6 |
HIP 81821 |
18.78 |
| 2026-02-13 00:00 |
16:44:19.55 |
-27:09:09.6 |
HIP 81939 |
18.22 |
| 2026-02-13 12:00 |
16:44:28.65 |
-27:10:05.5 |
HIP 81939 |
17.46 |
| 2026-02-14 00:00 |
16:44:37.64 |
-27:11:01.3 |
HIP 81981 |
16.57 |
| 2026-02-14 12:00 |
16:44:46.52 |
-27:11:56.9 |
HIP 81981 |
15.43 |
| 2026-02-15 00:00 |
16:44:55.29 |
-27:12:52.5 |
HIP 81981 |
14.54 |
| 2026-02-15 12:00 |
16:45:03.94 |
-27:13:47.9 |
HIP 81981 |
13.92 |
| 2026-02-16 00:00 |
16:45:12.47 |
-27:14:43.2 |
HIP 81981 |
13.60 |
| 2026-02-16 12:00 |
16:45:20.89 |
-27:15:38.4 |
HIP 81981 |
13.60 |
| 2026-02-17 00:00 |
16:45:29.19 |
-27:16:33.6 |
HIP 81981 |
13.89 |
| 2026-02-17 12:00 |
16:45:37.37 |
-27:17:28.6 |
HIP 81981 |
14.46 |
| 2026-02-18 00:00 |
16:45:45.43 |
-27:18:23.4 |
HIP 81981 |
15.25 |
| 2026-02-18 12:00 |
16:45:53.38 |
-27:19:18.2 |
HIP 81981 |
16.24 |
| 2026-02-19 00:00 |
16:46:01.20 |
-27:20:12.9 |
HIP 81981 |
17.37 |
| 2026-02-19 12:00 |
16:46:08.91 |
-27:21:07.4 |
HIP 81981 |
18.62 |
| 2026-02-20 00:00 |
16:46:16.49 |
-27:22:01.9 |
HIP 81981 |
19.95 |
| 2026-02-20 12:00 |
16:46:23.95 |
-27:22:56.2 |
HIP 81981 |
21.34 |
| 2026-02-21 00:00 |
16:46:31.29 |
-27:23:50.4 |
HIP 81981 |
22.78 |
| 2026-02-21 12:00 |
16:46:38.51 |
-27:24:44.5 |
HIP 81981 |
24.25 |
| 2026-02-22 00:00 |
16:46:45.60 |
-27:25:38.5 |
HIP 81981 |
25.74 |
| 2026-02-22 12:00 |
16:46:52.57 |
-27:26:32.4 |
HIP 81981 |
27.23 |
| 2026-02-23 00:00 |
16:46:59.41 |
-27:27:26.1 |
HIP 81981 |
28.74 |
| 2026-02-23 12:00 |
16:47:06.13 |
-27:28:19.8 |
HIP 82315 |
27.69 |
| 2026-02-24 00:00 |
16:47:12.73 |
-27:29:13.3 |
HIP 82315 |
26.07 |