메타데이터
| 항목 |
값 |
| Designation |
C/2006 S5 (Hill) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2007-12-09T18:01:38.340480Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:00Z |
| Obs used |
1177 |
| NEO |
- |
| M1 |
12.500 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2007-11-10.0000000 |
| e |
0.97300141 |
| q (au) |
2.630434 |
| a (au) |
97.428581 |
| i (deg) |
10.131379 |
| Ω (om, deg) |
281.563425 |
| ω (w, deg) |
182.109258 |
| M (ma, deg) |
359.969509 |
밝기
산란 + 전체 선형
$$
M_a = (13.005 + 2.274\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.005 |
| n |
2.274 |
| gf |
1.000 |
| gb |
-0.585 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
16:56:20.06 |
-27:18:19.0 |
HIP 82980 |
16.10 |
| 2026-05-12 12:00 |
16:56:16.82 |
-27:18:15.5 |
HIP 82980 |
16.78 |
| 2026-05-13 00:00 |
16:56:13.58 |
-27:18:11.9 |
HIP 82980 |
17.48 |
| 2026-05-13 12:00 |
16:56:10.31 |
-27:18:08.3 |
HIP 82980 |
18.18 |
| 2026-05-14 00:00 |
16:56:07.04 |
-27:18:04.6 |
HIP 82980 |
18.88 |
| 2026-05-14 12:00 |
16:56:03.75 |
-27:18:00.9 |
HIP 82980 |
19.59 |
| 2026-05-15 00:00 |
16:56:00.45 |
-27:17:57.1 |
HIP 82980 |
20.31 |
| 2026-05-15 12:00 |
16:55:57.14 |
-27:17:53.2 |
HIP 82980 |
21.03 |
| 2026-05-16 00:00 |
16:55:53.82 |
-27:17:49.3 |
HIP 82980 |
21.75 |
| 2026-05-16 12:00 |
16:55:50.48 |
-27:17:45.3 |
HIP 82980 |
22.48 |
| 2026-05-17 00:00 |
16:55:47.14 |
-27:17:41.3 |
HIP 82980 |
23.21 |
| 2026-05-17 12:00 |
16:55:43.78 |
-27:17:37.3 |
HIP 82980 |
23.94 |
| 2026-05-18 00:00 |
16:55:40.41 |
-27:17:33.1 |
HIP 82980 |
24.68 |
| 2026-05-18 12:00 |
16:55:37.03 |
-27:17:28.9 |
HIP 82980 |
25.42 |
| 2026-05-19 00:00 |
16:55:33.64 |
-27:17:24.7 |
HIP 82980 |
26.16 |
| 2026-05-19 12:00 |
16:55:30.24 |
-27:17:20.4 |
HIP 82980 |
26.91 |
| 2026-05-20 00:00 |
16:55:26.83 |
-27:17:16.1 |
HIP 82980 |
27.66 |
| 2026-05-20 12:00 |
16:55:23.41 |
-27:17:11.7 |
HIP 82980 |
28.41 |
| 2026-05-21 00:00 |
16:55:19.99 |
-27:17:07.2 |
HIP 82754 |
28.60 |
| 2026-05-21 12:00 |
16:55:16.55 |
-27:17:02.7 |
HIP 82754 |
28.50 |
| 2026-05-22 00:00 |
16:55:13.11 |
-27:16:58.2 |
HIP 82754 |
28.43 |
| 2026-05-22 12:00 |
16:55:09.66 |
-27:16:53.6 |
HIP 82754 |
28.37 |
| 2026-05-23 00:00 |
16:55:06.20 |
-27:16:48.9 |
HIP 82754 |
28.34 |
| 2026-05-23 12:00 |
16:55:02.73 |
-27:16:44.2 |
HIP 82754 |
28.33 |
| 2026-05-24 00:00 |
16:54:59.26 |
-27:16:39.5 |
HIP 82754 |
28.34 |
| 2026-05-24 12:00 |
16:54:55.78 |
-27:16:34.6 |
HIP 82754 |
28.37 |
| 2026-05-25 00:00 |
16:54:52.29 |
-27:16:29.8 |
HIP 82754 |
28.42 |
| 2026-05-25 12:00 |
16:54:48.79 |
-27:16:24.9 |
HIP 82754 |
28.50 |
| 2026-05-26 00:00 |
16:54:45.29 |
-27:16:19.9 |
HIP 82754 |
28.60 |
| 2026-05-26 12:00 |
16:54:41.79 |
-27:16:14.9 |
HIP 82754 |
28.72 |
| 2026-05-27 00:00 |
16:54:38.28 |
-27:16:09.9 |
HIP 82754 |
28.86 |
| 2026-05-27 12:00 |
16:54:34.76 |
-27:16:04.8 |
HIP 82754 |
29.02 |
| 2026-05-28 00:00 |
16:54:31.24 |
-27:15:59.6 |
HIP 82754 |
29.21 |
| 2026-05-28 12:00 |
16:54:27.72 |
-27:15:54.4 |
HIP 82754 |
29.41 |
| 2026-05-29 00:00 |
16:54:24.19 |
-27:15:49.2 |
HIP 82754 |
29.64 |
| 2026-05-29 12:00 |
16:54:20.65 |
-27:15:43.9 |
HIP 82754 |
29.88 |
| 2026-05-30 00:00 |
16:54:17.12 |
-27:15:38.5 |
HIP 82754 |
30.15 |
| 2026-05-30 12:00 |
16:54:13.58 |
-27:15:33.1 |
HIP 82754 |
30.43 |
| 2026-05-31 00:00 |
16:54:10.03 |
-27:15:27.7 |
HIP 82754 |
30.73 |
| 2026-05-31 12:00 |
16:54:06.49 |
-27:15:22.2 |
HIP 82754 |
31.05 |
| 2026-06-01 00:00 |
16:54:02.94 |
-27:15:16.7 |
HIP 82754 |
31.39 |
| 2026-06-01 12:00 |
16:53:59.39 |
-27:15:11.1 |
HIP 82534 |
30.95 |
| 2026-06-02 00:00 |
16:53:55.83 |
-27:15:05.5 |
HIP 82534 |
30.29 |