P/2010 H2 (Vales)
메타데이터
| 항목 |
값 |
| Designation |
P/2010 H2 (Vales) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-03-09T08:27:45.460800Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:42Z |
| Obs used |
1631 |
| NEO |
- |
| M1 |
7.000 |
| K1 |
10.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2010-05-08.0000000 |
| e |
0.19290772 |
| q (au) |
3.107734 |
| a (au) |
3.850532 |
| i (deg) |
14.252912 |
| Ω (om, deg) |
64.308899 |
| ω (w, deg) |
130.123335 |
| M (ma, deg) |
7.780625 |
밝기
산란 + 전체 선형
$$
M_a = (6.977 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
6.977 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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) |
| 2026-02-03 00:00 |
17:43:43.32 |
-25:28:24.8 |
HIP 86583 |
40.88 |
| 2026-02-03 12:00 |
17:44:23.27 |
-25:29:52.5 |
HIP 87009 |
35.08 |
| 2026-02-04 00:00 |
17:45:03.11 |
-25:31:19.7 |
HIP 87009 |
26.50 |
| 2026-02-04 12:00 |
17:45:42.85 |
-25:32:46.5 |
HIP 87009 |
18.46 |
| 2026-02-05 00:00 |
17:46:22.49 |
-25:34:12.9 |
HIP 87009 |
12.01 |
| 2026-02-05 12:00 |
17:47:02.03 |
-25:35:38.8 |
HIP 87009 |
10.55 |
| 2026-02-06 00:00 |
17:47:41.46 |
-25:37:04.3 |
HIP 87009 |
15.51 |
| 2026-02-06 12:00 |
17:48:20.78 |
-25:38:29.3 |
HIP 87009 |
23.04 |
| 2026-02-07 00:00 |
17:49:00.00 |
-25:39:54.0 |
HIP 87009 |
31.31 |
| 2026-02-07 12:00 |
17:49:39.10 |
-25:41:18.3 |
HIP 87422 |
31.04 |
| 2026-02-08 00:00 |
17:50:18.09 |
-25:42:42.1 |
HIP 87422 |
22.14 |
| 2026-02-08 12:00 |
17:50:56.97 |
-25:44:05.6 |
HIP 87422 |
13.28 |
| 2026-02-09 00:00 |
17:51:35.74 |
-25:45:28.7 |
HIP 87422 |
4.44 |
| 2026-02-09 12:00 |
17:52:14.40 |
-25:46:51.4 |
HIP 87422 |
4.38 |
| 2026-02-10 00:00 |
17:52:52.94 |
-25:48:13.7 |
HIP 87422 |
13.16 |
| 2026-02-10 12:00 |
17:53:31.37 |
-25:49:35.7 |
HIP 87661 |
13.33 |
| 2026-02-11 00:00 |
17:54:09.67 |
-25:50:57.3 |
HIP 87661 |
7.05 |
| 2026-02-11 12:00 |
17:54:47.86 |
-25:52:18.6 |
HIP 87661 |
8.57 |
| 2026-02-12 00:00 |
17:55:25.93 |
-25:53:39.5 |
HIP 87661 |
15.73 |
| 2026-02-12 12:00 |
17:56:03.87 |
-25:55:00.1 |
HIP 87809 |
14.86 |
| 2026-02-13 00:00 |
17:56:41.70 |
-25:56:20.4 |
HIP 87809 |
17.05 |
| 2026-02-13 12:00 |
17:57:19.40 |
-25:57:40.3 |
HIP 87809 |
22.54 |
| 2026-02-14 00:00 |
17:57:56.97 |
-25:59:00.0 |
HIP 88074 |
20.37 |
| 2026-02-14 12:00 |
17:58:34.42 |
-26:00:19.3 |
HIP 88074 |
14.61 |
| 2026-02-15 00:00 |
17:59:11.73 |
-26:01:38.4 |
HIP 88074 |
12.55 |
| 2026-02-15 12:00 |
17:59:48.92 |
-26:02:57.2 |
HIP 88074 |
15.66 |
| 2026-02-16 00:00 |
18:00:25.98 |
-26:04:15.6 |
HIP 88074 |
21.80 |
| 2026-02-16 12:00 |
18:01:02.91 |
-26:05:33.9 |
HIP 88074 |
29.08 |
| 2026-02-17 00:00 |
18:01:39.70 |
-26:06:51.8 |
HIP 88440 |
25.88 |
| 2026-02-17 12:00 |
18:02:16.36 |
-26:08:09.5 |
HIP 88440 |
19.78 |
| 2026-02-18 00:00 |
18:02:52.88 |
-26:09:27.0 |
HIP 88440 |
15.88 |
| 2026-02-18 12:00 |
18:03:29.26 |
-26:10:44.2 |
HIP 88440 |
15.85 |
| 2026-02-19 00:00 |
18:04:05.50 |
-26:12:01.2 |
HIP 88440 |
19.65 |
| 2026-02-19 12:00 |
18:04:41.61 |
-26:13:18.0 |
HIP 88687 |
21.80 |
| 2026-02-20 00:00 |
18:05:17.57 |
-26:14:34.5 |
HIP 88687 |
13.63 |
| 2026-02-20 12:00 |
18:05:53.39 |
-26:15:50.9 |
HIP 88687 |
5.51 |
| 2026-02-21 00:00 |
18:06:29.07 |
-26:17:07.1 |
HIP 88687 |
2.62 |
| 2026-02-21 12:00 |
18:07:04.60 |
-26:18:23.1 |
HIP 88739 |
2.15 |
| 2026-02-22 00:00 |
18:07:39.99 |
-26:19:38.9 |
HIP 88739 |
10.15 |
| 2026-02-22 12:00 |
18:08:15.22 |
-26:20:54.5 |
HIP 88739 |
18.14 |
| 2026-02-23 00:00 |
18:08:50.31 |
-26:22:10.0 |
HIP 88937 |
16.19 |
| 2026-02-23 12:00 |
18:09:25.25 |
-26:23:25.3 |
HIP 88937 |
16.62 |
| 2026-02-24 00:00 |
18:10:00.04 |
-26:24:40.5 |
HIP 89032 |
18.52 |