메타데이터
| 항목 |
값 |
| Designation |
429P/LINEAR-Hill |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2008-11-02T20:41:05.654400Z |
| Orbit solution date (soln_date, UTC) |
2024-03-04T23:13:07Z |
| Obs used |
587 |
| NEO |
- |
| M1 |
12.100 |
| K1 |
25.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2010-06-16.0000000 |
| e |
0.50669295 |
| q (au) |
1.722910 |
| a (au) |
3.492571 |
| i (deg) |
7.748307 |
| Ω (om, deg) |
325.147789 |
| ω (w, deg) |
72.067040 |
| M (ma, deg) |
89.112743 |
밝기
산란 + 전체 선형
$$
M_a = (14.213 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.213 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
15:15:42.22 |
-26:23:37.5 |
HIP 74539 |
27.20 |
| 2026-07-29 12:00 |
15:15:43.69 |
-26:22:48.2 |
HIP 74539 |
27.15 |
| 2026-07-30 00:00 |
15:15:45.38 |
-26:21:59.8 |
HIP 74840 |
26.59 |
| 2026-07-30 12:00 |
15:15:47.30 |
-26:21:12.2 |
HIP 74840 |
25.98 |
| 2026-07-31 00:00 |
15:15:49.45 |
-26:20:25.4 |
HIP 74840 |
25.34 |
| 2026-07-31 12:00 |
15:15:51.82 |
-26:19:39.5 |
HIP 74840 |
24.67 |
| 2026-08-01 00:00 |
15:15:54.41 |
-26:18:54.5 |
HIP 74840 |
23.97 |
| 2026-08-01 12:00 |
15:15:57.22 |
-26:18:10.3 |
HIP 74840 |
23.24 |
| 2026-08-02 00:00 |
15:16:00.26 |
-26:17:26.9 |
HIP 74840 |
22.48 |
| 2026-08-02 12:00 |
15:16:03.52 |
-26:16:44.4 |
HIP 74840 |
21.69 |
| 2026-08-03 00:00 |
15:16:07.00 |
-26:16:02.8 |
HIP 74840 |
20.87 |
| 2026-08-03 12:00 |
15:16:10.70 |
-26:15:22.0 |
HIP 74840 |
20.02 |
| 2026-08-04 00:00 |
15:16:14.62 |
-26:14:42.1 |
HIP 74840 |
19.15 |
| 2026-08-04 12:00 |
15:16:18.76 |
-26:14:03.0 |
HIP 74840 |
18.24 |
| 2026-08-05 00:00 |
15:16:23.12 |
-26:13:24.8 |
HIP 74840 |
17.32 |
| 2026-08-05 12:00 |
15:16:27.70 |
-26:12:47.5 |
HIP 74840 |
16.38 |
| 2026-08-06 00:00 |
15:16:32.50 |
-26:12:11.0 |
HIP 74840 |
15.42 |
| 2026-08-06 12:00 |
15:16:37.51 |
-26:11:35.4 |
HIP 74840 |
14.45 |
| 2026-08-07 00:00 |
15:16:42.74 |
-26:11:00.6 |
HIP 74840 |
13.48 |
| 2026-08-07 12:00 |
15:16:48.19 |
-26:10:26.7 |
HIP 74840 |
12.52 |
| 2026-08-08 00:00 |
15:16:53.85 |
-26:09:53.7 |
HIP 74840 |
11.59 |
| 2026-08-08 12:00 |
15:16:59.73 |
-26:09:21.5 |
HIP 74840 |
10.71 |
| 2026-08-09 00:00 |
15:17:05.83 |
-26:08:50.2 |
HIP 74840 |
9.91 |
| 2026-08-09 12:00 |
15:17:12.14 |
-26:08:19.7 |
HIP 74840 |
9.23 |
| 2026-08-10 00:00 |
15:17:18.66 |
-26:07:50.2 |
HIP 74840 |
8.72 |
| 2026-08-10 12:00 |
15:17:25.39 |
-26:07:21.4 |
HIP 74840 |
8.43 |
| 2026-08-11 00:00 |
15:17:32.34 |
-26:06:53.6 |
HIP 74840 |
8.41 |
| 2026-08-11 12:00 |
15:17:39.50 |
-26:06:26.6 |
HIP 74840 |
8.68 |
| 2026-08-12 00:00 |
15:17:46.87 |
-26:06:00.4 |
HIP 74840 |
9.24 |
| 2026-08-12 12:00 |
15:17:54.45 |
-26:05:35.2 |
HIP 74840 |
10.07 |
| 2026-08-13 00:00 |
15:18:02.24 |
-26:05:10.7 |
HIP 74840 |
11.13 |
| 2026-08-13 12:00 |
15:18:10.24 |
-26:04:47.2 |
HIP 74840 |
12.37 |
| 2026-08-14 00:00 |
15:18:18.45 |
-26:04:24.5 |
HIP 74840 |
13.76 |
| 2026-08-14 12:00 |
15:18:26.86 |
-26:04:02.6 |
HIP 74840 |
15.28 |
| 2026-08-15 00:00 |
15:18:35.48 |
-26:03:41.6 |
HIP 74840 |
16.90 |
| 2026-08-15 12:00 |
15:18:44.31 |
-26:03:21.4 |
HIP 74840 |
18.62 |
| 2026-08-16 00:00 |
15:18:53.34 |
-26:03:02.1 |
HIP 74840 |
20.42 |
| 2026-08-16 12:00 |
15:19:02.57 |
-26:02:43.6 |
HIP 74840 |
22.30 |
| 2026-08-17 00:00 |
15:19:12.01 |
-26:02:26.0 |
HIP 75092 |
20.32 |
| 2026-08-17 12:00 |
15:19:21.65 |
-26:02:09.2 |
HIP 75092 |
18.14 |
| 2026-08-18 00:00 |
15:19:31.48 |
-26:01:53.2 |
HIP 75092 |
15.91 |
| 2026-08-18 12:00 |
15:19:41.52 |
-26:01:38.1 |
HIP 75092 |
13.65 |
| 2026-08-19 00:00 |
15:19:51.76 |
-26:01:23.8 |
HIP 75092 |
11.34 |