메타데이터
| 항목 |
값 |
| Designation |
155P/Shoemaker 3 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2002-12-08T02:13:30.930240Z |
| Orbit solution date (soln_date, UTC) |
2022-12-31T16:13:39Z |
| Obs used |
1966 |
| NEO |
- |
| M1 |
10.000 |
| K1 |
12.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2011-05-21.0000000 |
| e |
0.72610716 |
| q (au) |
1.806142 |
| a (au) |
6.594337 |
| i (deg) |
6.398094 |
| Ω (om, deg) |
97.276219 |
| ω (w, deg) |
14.601886 |
| M (ma, deg) |
179.609901 |
밝기
산란 + 전체 선형
$$
M_a = (10.890 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.890 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-05-12 00:00 |
19:10:51.69 |
-23:00:32.3 |
HIP 94122 |
20.80 |
| 2026-05-12 12:00 |
19:10:46.77 |
-23:00:45.1 |
HIP 94122 |
19.73 |
| 2026-05-13 00:00 |
19:10:41.75 |
-23:00:58.0 |
HIP 94122 |
18.65 |
| 2026-05-13 12:00 |
19:10:36.64 |
-23:01:11.0 |
HIP 94122 |
17.56 |
| 2026-05-14 00:00 |
19:10:31.44 |
-23:01:24.2 |
HIP 94122 |
16.47 |
| 2026-05-14 12:00 |
19:10:26.15 |
-23:01:37.5 |
HIP 94122 |
15.38 |
| 2026-05-15 00:00 |
19:10:20.77 |
-23:01:51.0 |
HIP 94122 |
14.30 |
| 2026-05-15 12:00 |
19:10:15.30 |
-23:02:04.6 |
HIP 94122 |
13.23 |
| 2026-05-16 00:00 |
19:10:09.73 |
-23:02:18.3 |
HIP 94122 |
12.19 |
| 2026-05-16 12:00 |
19:10:04.08 |
-23:02:32.2 |
HIP 94122 |
11.19 |
| 2026-05-17 00:00 |
19:09:58.34 |
-23:02:46.2 |
HIP 94122 |
10.25 |
| 2026-05-17 12:00 |
19:09:52.52 |
-23:03:00.3 |
HIP 94122 |
9.39 |
| 2026-05-18 00:00 |
19:09:46.60 |
-23:03:14.5 |
HIP 94122 |
8.66 |
| 2026-05-18 12:00 |
19:09:40.60 |
-23:03:28.9 |
HIP 94122 |
8.09 |
| 2026-05-19 00:00 |
19:09:34.51 |
-23:03:43.4 |
HIP 94122 |
7.73 |
| 2026-05-19 12:00 |
19:09:28.34 |
-23:03:58.0 |
HIP 94122 |
7.63 |
| 2026-05-20 00:00 |
19:09:22.08 |
-23:04:12.8 |
HIP 94122 |
7.80 |
| 2026-05-20 12:00 |
19:09:15.74 |
-23:04:27.6 |
HIP 94122 |
8.24 |
| 2026-05-21 00:00 |
19:09:09.31 |
-23:04:42.6 |
HIP 94041 |
8.81 |
| 2026-05-21 12:00 |
19:09:02.80 |
-23:04:57.7 |
HIP 94041 |
7.71 |
| 2026-05-22 00:00 |
19:08:56.21 |
-23:05:12.9 |
HIP 94041 |
6.76 |
| 2026-05-22 12:00 |
19:08:49.53 |
-23:05:28.2 |
HIP 94041 |
6.06 |
| 2026-05-23 00:00 |
19:08:42.78 |
-23:05:43.6 |
HIP 94041 |
5.70 |
| 2026-05-23 12:00 |
19:08:35.94 |
-23:05:59.1 |
HIP 94041 |
5.77 |
| 2026-05-24 00:00 |
19:08:29.02 |
-23:06:14.8 |
HIP 94041 |
6.27 |
| 2026-05-24 12:00 |
19:08:22.03 |
-23:06:30.5 |
HIP 94041 |
7.12 |
| 2026-05-25 00:00 |
19:08:14.95 |
-23:06:46.3 |
HIP 94041 |
8.22 |
| 2026-05-25 12:00 |
19:08:07.80 |
-23:07:02.3 |
HIP 94041 |
9.49 |
| 2026-05-26 00:00 |
19:08:00.57 |
-23:07:18.3 |
HIP 94041 |
10.89 |
| 2026-05-26 12:00 |
19:07:53.27 |
-23:07:34.4 |
HIP 94041 |
12.38 |
| 2026-05-27 00:00 |
19:07:45.89 |
-23:07:50.6 |
HIP 94041 |
13.93 |
| 2026-05-27 12:00 |
19:07:38.43 |
-23:08:06.9 |
HIP 94041 |
15.53 |
| 2026-05-28 00:00 |
19:07:30.90 |
-23:08:23.3 |
HIP 93832 |
15.10 |
| 2026-05-28 12:00 |
19:07:23.30 |
-23:08:39.8 |
HIP 93832 |
13.42 |
| 2026-05-29 00:00 |
19:07:15.62 |
-23:08:56.4 |
HIP 93832 |
11.76 |
| 2026-05-29 12:00 |
19:07:07.87 |
-23:09:13.0 |
HIP 93832 |
10.13 |
| 2026-05-30 00:00 |
19:07:00.05 |
-23:09:29.7 |
HIP 93832 |
8.56 |
| 2026-05-30 12:00 |
19:06:52.16 |
-23:09:46.5 |
HIP 93832 |
7.09 |
| 2026-05-31 00:00 |
19:06:44.19 |
-23:10:03.4 |
HIP 93832 |
5.83 |
| 2026-05-31 12:00 |
19:06:36.16 |
-23:10:20.4 |
HIP 93832 |
4.95 |
| 2026-06-01 00:00 |
19:06:28.06 |
-23:10:37.4 |
HIP 93832 |
4.68 |
| 2026-06-01 12:00 |
19:06:19.89 |
-23:10:54.5 |
HIP 93832 |
5.15 |
| 2026-06-02 00:00 |
19:06:11.66 |
-23:11:11.6 |
HIP 93832 |
6.21 |