메타데이터
| 항목 |
값 |
| Designation |
C/2005 H1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2004-10-28T12:40:07.613760Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:48Z |
| Obs used |
169 |
| NEO |
- |
| M1 |
12.900 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2005-05-28.0000000 |
| e |
0.89692366 |
| q (au) |
4.768597 |
| a (au) |
46.262766 |
| i (deg) |
81.512268 |
| Ω (om, deg) |
71.490714 |
| ω (w, deg) |
95.212944 |
| M (ma, deg) |
0.662384 |
밝기
산란 + 전체 선형
$$
M_a = (5.636 + 5.458\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.636 |
| n |
5.458 |
| gf |
0.968 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
9.772 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
17:26:47.81 |
-84:42:08.8 |
HIP 86072 |
12.01 |
| 2026-05-12 12:00 |
17:26:16.98 |
-84:42:35.6 |
HIP 86072 |
12.73 |
| 2026-05-13 00:00 |
17:25:45.90 |
-84:43:02.0 |
HIP 85054 |
12.90 |
| 2026-05-13 12:00 |
17:25:14.57 |
-84:43:27.9 |
HIP 85054 |
13.11 |
| 2026-05-14 00:00 |
17:24:43.00 |
-84:43:53.4 |
HIP 85054 |
13.37 |
| 2026-05-14 12:00 |
17:24:11.18 |
-84:44:18.5 |
HIP 85054 |
13.66 |
| 2026-05-15 00:00 |
17:23:39.13 |
-84:44:43.1 |
HIP 85054 |
14.00 |
| 2026-05-15 12:00 |
17:23:06.84 |
-84:45:07.3 |
HIP 85054 |
14.37 |
| 2026-05-16 00:00 |
17:22:34.32 |
-84:45:31.0 |
HIP 85054 |
14.77 |
| 2026-05-16 12:00 |
17:22:01.58 |
-84:45:54.3 |
HIP 85054 |
15.20 |
| 2026-05-17 00:00 |
17:21:28.61 |
-84:46:17.1 |
HIP 85054 |
15.67 |
| 2026-05-17 12:00 |
17:20:55.43 |
-84:46:39.5 |
HIP 85054 |
16.15 |
| 2026-05-18 00:00 |
17:20:22.03 |
-84:47:01.3 |
HIP 85054 |
16.66 |
| 2026-05-18 12:00 |
17:19:48.43 |
-84:47:22.8 |
HIP 85054 |
17.19 |
| 2026-05-19 00:00 |
17:19:14.62 |
-84:47:43.7 |
HIP 85054 |
17.74 |
| 2026-05-19 12:00 |
17:18:40.61 |
-84:48:04.2 |
HIP 83751 |
17.97 |
| 2026-05-20 00:00 |
17:18:06.40 |
-84:48:24.2 |
HIP 83751 |
17.43 |
| 2026-05-20 12:00 |
17:17:32.00 |
-84:48:43.7 |
HIP 83751 |
16.90 |
| 2026-05-21 00:00 |
17:16:57.42 |
-84:49:02.7 |
HIP 83751 |
16.40 |
| 2026-05-21 12:00 |
17:16:22.65 |
-84:49:21.3 |
HIP 83751 |
15.92 |
| 2026-05-22 00:00 |
17:15:47.71 |
-84:49:39.3 |
HIP 83751 |
15.47 |
| 2026-05-22 12:00 |
17:15:12.59 |
-84:49:56.9 |
HIP 83751 |
15.04 |
| 2026-05-23 00:00 |
17:14:37.31 |
-84:50:14.0 |
HIP 83751 |
14.65 |
| 2026-05-23 12:00 |
17:14:01.87 |
-84:50:30.6 |
HIP 83751 |
14.28 |
| 2026-05-24 00:00 |
17:13:26.26 |
-84:50:46.7 |
HIP 83751 |
13.96 |
| 2026-05-24 12:00 |
17:12:50.51 |
-84:51:02.3 |
HIP 83751 |
13.67 |
| 2026-05-25 00:00 |
17:12:14.61 |
-84:51:17.4 |
HIP 83751 |
13.42 |
| 2026-05-25 12:00 |
17:11:38.56 |
-84:51:32.1 |
HIP 83751 |
13.21 |
| 2026-05-26 00:00 |
17:11:02.38 |
-84:51:46.2 |
HIP 83751 |
13.05 |
| 2026-05-26 12:00 |
17:10:26.07 |
-84:51:59.8 |
HIP 83751 |
12.94 |
| 2026-05-27 00:00 |
17:09:49.62 |
-84:52:12.9 |
HIP 83751 |
12.87 |
| 2026-05-27 12:00 |
17:09:13.06 |
-84:52:25.5 |
HIP 83751 |
12.85 |
| 2026-05-28 00:00 |
17:08:36.38 |
-84:52:37.6 |
HIP 83751 |
12.88 |
| 2026-05-28 12:00 |
17:07:59.58 |
-84:52:49.1 |
HIP 83751 |
12.96 |
| 2026-05-29 00:00 |
17:07:22.68 |
-84:53:00.2 |
HIP 83751 |
13.09 |
| 2026-05-29 12:00 |
17:06:45.68 |
-84:53:10.8 |
HIP 83751 |
13.27 |
| 2026-05-30 00:00 |
17:06:08.58 |
-84:53:20.8 |
HIP 83751 |
13.48 |
| 2026-05-30 12:00 |
17:05:31.39 |
-84:53:30.4 |
HIP 83751 |
13.74 |
| 2026-05-31 00:00 |
17:04:54.11 |
-84:53:39.4 |
HIP 83751 |
14.04 |
| 2026-05-31 12:00 |
17:04:16.76 |
-84:53:47.9 |
HIP 82768 |
14.09 |
| 2026-06-01 00:00 |
17:03:39.32 |
-84:53:55.9 |
HIP 82768 |
13.31 |
| 2026-06-01 12:00 |
17:03:01.82 |
-84:54:03.4 |
HIP 82768 |
12.53 |
| 2026-06-02 00:00 |
17:02:24.26 |
-84:54:10.3 |
HIP 82768 |
11.77 |