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) |
| 2026-07-29 00:00 |
18:05:42.69 |
-34:38:34.2 |
HIP 88542 |
12.27 |
| 2026-07-29 12:00 |
18:05:27.98 |
-34:38:39.5 |
HIP 88542 |
9.57 |
| 2026-07-30 00:00 |
18:05:13.57 |
-34:38:43.7 |
HIP 88542 |
7.19 |
| 2026-07-30 12:00 |
18:04:59.44 |
-34:38:47.1 |
HIP 88542 |
5.46 |
| 2026-07-31 00:00 |
18:04:45.61 |
-34:38:49.4 |
HIP 88542 |
4.99 |
| 2026-07-31 12:00 |
18:04:32.07 |
-34:38:50.9 |
HIP 88542 |
5.99 |
| 2026-08-01 00:00 |
18:04:18.83 |
-34:38:51.4 |
HIP 88542 |
7.86 |
| 2026-08-01 12:00 |
18:04:05.89 |
-34:38:51.0 |
HIP 88542 |
10.07 |
| 2026-08-02 00:00 |
18:03:53.26 |
-34:38:49.8 |
HIP 88542 |
12.41 |
| 2026-08-02 12:00 |
18:03:40.92 |
-34:38:47.6 |
HIP 88542 |
14.79 |
| 2026-08-03 00:00 |
18:03:28.89 |
-34:38:44.7 |
HIP 88542 |
17.15 |
| 2026-08-03 12:00 |
18:03:17.16 |
-34:38:40.8 |
HIP 88542 |
19.48 |
| 2026-08-04 00:00 |
18:03:05.74 |
-34:38:36.2 |
HIP 88542 |
21.78 |
| 2026-08-04 12:00 |
18:02:54.64 |
-34:38:30.8 |
HIP 88542 |
24.02 |
| 2026-08-05 00:00 |
18:02:43.84 |
-34:38:24.5 |
HIP 88206 |
24.56 |
| 2026-08-05 12:00 |
18:02:33.35 |
-34:38:17.5 |
HIP 88206 |
22.46 |
| 2026-08-06 00:00 |
18:02:23.18 |
-34:38:09.7 |
HIP 88206 |
20.43 |
| 2026-08-06 12:00 |
18:02:13.32 |
-34:38:01.1 |
HIP 88206 |
18.49 |
| 2026-08-07 00:00 |
18:02:03.78 |
-34:37:51.8 |
HIP 88206 |
16.63 |
| 2026-08-07 12:00 |
18:01:54.56 |
-34:37:41.8 |
HIP 88206 |
14.87 |
| 2026-08-08 00:00 |
18:01:45.66 |
-34:37:31.1 |
HIP 88206 |
13.22 |
| 2026-08-08 12:00 |
18:01:37.07 |
-34:37:19.7 |
HIP 88206 |
11.68 |
| 2026-08-09 00:00 |
18:01:28.81 |
-34:37:07.6 |
HIP 88206 |
10.29 |
| 2026-08-09 12:00 |
18:01:20.87 |
-34:36:54.8 |
HIP 88206 |
9.06 |
| 2026-08-10 00:00 |
18:01:13.26 |
-34:36:41.4 |
HIP 88206 |
8.04 |
| 2026-08-10 12:00 |
18:01:05.97 |
-34:36:27.3 |
HIP 88206 |
7.27 |
| 2026-08-11 00:00 |
18:00:59.00 |
-34:36:12.7 |
HIP 88206 |
6.79 |
| 2026-08-11 12:00 |
18:00:52.37 |
-34:35:57.4 |
HIP 88206 |
6.63 |
| 2026-08-12 00:00 |
18:00:46.06 |
-34:35:41.5 |
HIP 88206 |
6.76 |
| 2026-08-12 12:00 |
18:00:40.07 |
-34:35:25.0 |
HIP 88206 |
7.14 |
| 2026-08-13 00:00 |
18:00:34.42 |
-34:35:07.9 |
HIP 88206 |
7.70 |
| 2026-08-13 12:00 |
18:00:29.10 |
-34:34:50.3 |
HIP 88206 |
8.37 |
| 2026-08-14 00:00 |
18:00:24.10 |
-34:34:32.1 |
HIP 88206 |
9.11 |
| 2026-08-14 12:00 |
18:00:19.44 |
-34:34:13.4 |
HIP 88206 |
9.88 |
| 2026-08-15 00:00 |
18:00:15.11 |
-34:33:54.2 |
HIP 88206 |
10.66 |
| 2026-08-15 12:00 |
18:00:11.10 |
-34:33:34.5 |
HIP 88206 |
11.42 |
| 2026-08-16 00:00 |
18:00:07.43 |
-34:33:14.3 |
HIP 88206 |
12.16 |
| 2026-08-16 12:00 |
18:00:04.09 |
-34:32:53.6 |
HIP 88206 |
12.88 |
| 2026-08-17 00:00 |
18:00:01.08 |
-34:32:32.4 |
HIP 88206 |
13.56 |
| 2026-08-17 12:00 |
17:59:58.39 |
-34:32:10.8 |
HIP 88206 |
14.20 |
| 2026-08-18 00:00 |
17:59:56.04 |
-34:31:48.7 |
HIP 88206 |
14.80 |
| 2026-08-18 12:00 |
17:59:54.02 |
-34:31:26.2 |
HIP 88206 |
15.36 |
| 2026-08-19 00:00 |
17:59:52.32 |
-34:31:03.2 |
HIP 88206 |
15.88 |