메타데이터
| 항목 |
값 |
| Designation |
C/2008 L3 (Hill) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2008-04-22T09:56:00.726720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:21Z |
| Obs used |
82 |
| NEO |
- |
| M1 |
10.500 |
| K1 |
21.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2008-06-26.0000000 |
| e |
0.99376090 |
| q (au) |
2.011243 |
| a (au) |
322.360884 |
| i (deg) |
100.200796 |
| Ω (om, deg) |
24.185456 |
| ω (w, deg) |
101.814452 |
| M (ma, deg) |
0.010998 |
밝기
산란 + 전체 선형
$$
M_a = (11.825 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.825 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| 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) |
| 2026-06-01 00:00 |
08:11:29.49 |
-57:28:04.8 |
HIP 40310 |
26.36 |
| 2026-06-01 12:00 |
08:11:32.87 |
-57:27:30.2 |
HIP 40310 |
26.43 |
| 2026-06-02 00:00 |
08:11:36.29 |
-57:26:55.9 |
HIP 40310 |
26.52 |
| 2026-06-02 12:00 |
08:11:39.74 |
-57:26:21.8 |
HIP 40310 |
26.62 |
| 2026-06-03 00:00 |
08:11:43.23 |
-57:25:48.1 |
HIP 40310 |
26.74 |
| 2026-06-03 12:00 |
08:11:46.75 |
-57:25:14.6 |
HIP 40310 |
26.86 |
| 2026-06-04 00:00 |
08:11:50.30 |
-57:24:41.4 |
HIP 40310 |
27.01 |
| 2026-06-04 12:00 |
08:11:53.89 |
-57:24:08.4 |
HIP 40310 |
27.16 |
| 2026-06-05 00:00 |
08:11:57.51 |
-57:23:35.8 |
HIP 40310 |
27.32 |
| 2026-06-05 12:00 |
08:12:01.17 |
-57:23:03.4 |
HIP 40310 |
27.50 |
| 2026-06-06 00:00 |
08:12:04.85 |
-57:22:31.4 |
HIP 40310 |
27.69 |
| 2026-06-06 12:00 |
08:12:08.57 |
-57:21:59.6 |
HIP 40310 |
27.89 |
| 2026-06-07 00:00 |
08:12:12.33 |
-57:21:28.1 |
HIP 40310 |
28.10 |
| 2026-06-07 12:00 |
08:12:16.11 |
-57:20:56.9 |
HIP 40310 |
28.32 |
| 2026-06-08 00:00 |
08:12:19.93 |
-57:20:26.0 |
HIP 40310 |
28.55 |
| 2026-06-08 12:00 |
08:12:23.78 |
-57:19:55.4 |
HIP 40310 |
28.79 |
| 2026-06-09 00:00 |
08:12:27.66 |
-57:19:25.1 |
HIP 40310 |
29.04 |
| 2026-06-09 12:00 |
08:12:31.57 |
-57:18:55.1 |
HIP 40495 |
29.04 |
| 2026-06-10 00:00 |
08:12:35.51 |
-57:18:25.4 |
HIP 40495 |
28.47 |
| 2026-06-10 12:00 |
08:12:39.48 |
-57:17:56.0 |
HIP 40495 |
27.91 |
| 2026-06-11 00:00 |
08:12:43.48 |
-57:17:26.9 |
HIP 40495 |
27.34 |
| 2026-06-11 12:00 |
08:12:47.51 |
-57:16:58.1 |
HIP 40495 |
26.78 |
| 2026-06-12 00:00 |
08:12:51.58 |
-57:16:29.7 |
HIP 40495 |
26.23 |
| 2026-06-12 12:00 |
08:12:55.67 |
-57:16:01.5 |
HIP 40495 |
25.67 |
| 2026-06-13 00:00 |
08:12:59.78 |
-57:15:33.7 |
HIP 40495 |
25.13 |
| 2026-06-13 12:00 |
08:13:03.93 |
-57:15:06.2 |
HIP 40495 |
24.58 |
| 2026-06-14 00:00 |
08:13:08.11 |
-57:14:39.0 |
HIP 40495 |
24.05 |
| 2026-06-14 12:00 |
08:13:12.31 |
-57:14:12.1 |
HIP 40495 |
23.51 |
| 2026-06-15 00:00 |
08:13:16.54 |
-57:13:45.6 |
HIP 40495 |
22.99 |
| 2026-06-15 12:00 |
08:13:20.80 |
-57:13:19.4 |
HIP 40495 |
22.47 |
| 2026-06-16 00:00 |
08:13:25.09 |
-57:12:53.5 |
HIP 40495 |
21.96 |
| 2026-06-16 12:00 |
08:13:29.40 |
-57:12:27.9 |
HIP 40495 |
21.45 |
| 2026-06-17 00:00 |
08:13:33.74 |
-57:12:02.7 |
HIP 40495 |
20.95 |
| 2026-06-17 12:00 |
08:13:38.10 |
-57:11:37.8 |
HIP 40495 |
20.46 |
| 2026-06-18 00:00 |
08:13:42.49 |
-57:11:13.2 |
HIP 40495 |
19.98 |
| 2026-06-18 12:00 |
08:13:46.90 |
-57:10:48.9 |
HIP 40495 |
19.51 |
| 2026-06-19 00:00 |
08:13:51.34 |
-57:10:25.0 |
HIP 40495 |
19.05 |
| 2026-06-19 12:00 |
08:13:55.80 |
-57:10:01.5 |
HIP 40495 |
18.61 |
| 2026-06-20 00:00 |
08:14:00.29 |
-57:09:38.3 |
HIP 40495 |
18.17 |
| 2026-06-20 12:00 |
08:14:04.80 |
-57:09:15.4 |
HIP 40495 |
17.75 |
| 2026-06-21 00:00 |
08:14:09.33 |
-57:08:52.8 |
HIP 40495 |
17.34 |
| 2026-06-21 12:00 |
08:14:13.89 |
-57:08:30.6 |
HIP 40495 |
16.95 |
| 2026-06-22 00:00 |
08:14:18.47 |
-57:08:08.8 |
HIP 40495 |
16.57 |