메타데이터
| 항목 |
값 |
| Designation |
310P/Hill |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-04-19T01:39:38.698560Z |
| Orbit solution date (soln_date, UTC) |
2025-02-28T13:42:32Z |
| Obs used |
587 |
| NEO |
- |
| M1 |
13.500 |
| K1 |
11.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2017-01-08.0000000 |
| e |
0.42601974 |
| q (au) |
2.388747 |
| a (au) |
4.161724 |
| i (deg) |
13.186071 |
| Ω (om, deg) |
8.960664 |
| ω (w, deg) |
31.658059 |
| M (ma, deg) |
73.128566 |
밝기
산란 + 전체 선형
$$
M_a = (14.263 + 3.893\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.263 |
| n |
3.893 |
| gf |
0.885 |
| gb |
-0.839 |
| k |
0.996 |
| δ90 |
1.000 |
| 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 |
11:45:17.45 |
+02:16:29.5 |
HIP 57305 |
6.21 |
| 2026-06-01 12:00 |
11:45:18.60 |
+02:15:47.0 |
HIP 57305 |
6.93 |
| 2026-06-02 00:00 |
11:45:19.92 |
+02:15:03.6 |
HIP 57305 |
7.71 |
| 2026-06-02 12:00 |
11:45:21.41 |
+02:14:19.1 |
HIP 57305 |
8.53 |
| 2026-06-03 00:00 |
11:45:23.06 |
+02:13:33.7 |
HIP 57305 |
9.38 |
| 2026-06-03 12:00 |
11:45:24.89 |
+02:12:47.2 |
HIP 57305 |
10.28 |
| 2026-06-04 00:00 |
11:45:26.89 |
+02:11:59.8 |
HIP 57305 |
11.21 |
| 2026-06-04 12:00 |
11:45:29.06 |
+02:11:11.4 |
HIP 57305 |
12.18 |
| 2026-06-05 00:00 |
11:45:31.39 |
+02:10:22.1 |
HIP 57305 |
13.19 |
| 2026-06-05 12:00 |
11:45:33.89 |
+02:09:31.8 |
HIP 57305 |
14.24 |
| 2026-06-06 00:00 |
11:45:36.56 |
+02:08:40.5 |
HIP 57305 |
15.32 |
| 2026-06-06 12:00 |
11:45:39.39 |
+02:07:48.2 |
HIP 57305 |
16.44 |
| 2026-06-07 00:00 |
11:45:42.39 |
+02:06:55.0 |
HIP 57305 |
17.60 |
| 2026-06-07 12:00 |
11:45:45.56 |
+02:06:00.8 |
HIP 57305 |
18.79 |
| 2026-06-08 00:00 |
11:45:48.89 |
+02:05:05.7 |
HIP 57305 |
20.02 |
| 2026-06-08 12:00 |
11:45:52.38 |
+02:04:09.6 |
HIP 57305 |
21.29 |
| 2026-06-09 00:00 |
11:45:56.04 |
+02:03:12.6 |
HIP 57525 |
22.53 |
| 2026-06-09 12:00 |
11:45:59.86 |
+02:02:14.6 |
HIP 57525 |
21.50 |
| 2026-06-10 00:00 |
11:46:03.84 |
+02:01:15.7 |
HIP 57525 |
20.46 |
| 2026-06-10 12:00 |
11:46:07.98 |
+02:00:15.8 |
HIP 57525 |
19.43 |
| 2026-06-11 00:00 |
11:46:12.29 |
+01:59:15.0 |
HIP 57525 |
18.41 |
| 2026-06-11 12:00 |
11:46:16.75 |
+01:58:13.3 |
HIP 57525 |
17.42 |
| 2026-06-12 00:00 |
11:46:21.38 |
+01:57:10.6 |
HIP 57525 |
16.47 |
| 2026-06-12 12:00 |
11:46:26.16 |
+01:56:07.1 |
HIP 57525 |
15.59 |
| 2026-06-13 00:00 |
11:46:31.11 |
+01:55:02.6 |
HIP 57525 |
14.81 |
| 2026-06-13 12:00 |
11:46:36.21 |
+01:53:57.1 |
HIP 57525 |
14.13 |
| 2026-06-14 00:00 |
11:46:41.47 |
+01:52:50.8 |
HIP 57525 |
13.61 |
| 2026-06-14 12:00 |
11:46:46.88 |
+01:51:43.6 |
HIP 57525 |
13.28 |
| 2026-06-15 00:00 |
11:46:52.45 |
+01:50:35.4 |
HIP 57525 |
13.16 |
| 2026-06-15 12:00 |
11:46:58.18 |
+01:49:26.4 |
HIP 57525 |
13.28 |
| 2026-06-16 00:00 |
11:47:04.06 |
+01:48:16.5 |
HIP 57525 |
13.64 |
| 2026-06-16 12:00 |
11:47:10.09 |
+01:47:05.6 |
HIP 57525 |
14.25 |
| 2026-06-17 00:00 |
11:47:16.28 |
+01:45:53.9 |
HIP 57525 |
15.08 |
| 2026-06-17 12:00 |
11:47:22.62 |
+01:44:41.3 |
HIP 57525 |
16.13 |
| 2026-06-18 00:00 |
11:47:29.11 |
+01:43:27.8 |
HIP 57525 |
17.35 |
| 2026-06-18 12:00 |
11:47:35.75 |
+01:42:13.5 |
HIP 57525 |
18.74 |
| 2026-06-19 00:00 |
11:47:42.54 |
+01:40:58.3 |
HIP 57525 |
20.27 |
| 2026-06-19 12:00 |
11:47:49.48 |
+01:39:42.2 |
HIP 57525 |
21.91 |
| 2026-06-20 00:00 |
11:47:56.57 |
+01:38:25.3 |
HIP 57525 |
23.67 |
| 2026-06-20 12:00 |
11:48:03.80 |
+01:37:07.5 |
HIP 57525 |
25.51 |
| 2026-06-21 00:00 |
11:48:11.18 |
+01:35:48.9 |
HIP 57525 |
27.44 |
| 2026-06-21 12:00 |
11:48:18.70 |
+01:34:29.5 |
HIP 57525 |
29.45 |
| 2026-06-22 00:00 |
11:48:26.37 |
+01:33:09.2 |
HIP 57525 |
31.53 |