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) |
| 2026-09-20 00:00 |
18:37:59.52 |
-23:54:44.2 |
HIP 91405 |
25.47 |
| 2026-09-20 12:00 |
18:37:59.24 |
-23:54:45.2 |
HIP 91405 |
25.50 |
| 2026-09-21 00:00 |
18:37:59.05 |
-23:54:46.2 |
HIP 91405 |
25.53 |
| 2026-09-21 12:00 |
18:37:58.97 |
-23:54:47.0 |
HIP 91405 |
25.55 |
| 2026-09-22 00:00 |
18:37:58.98 |
-23:54:47.8 |
HIP 91405 |
25.56 |
| 2026-09-22 12:00 |
18:37:59.10 |
-23:54:48.4 |
HIP 91405 |
25.56 |
| 2026-09-23 00:00 |
18:37:59.31 |
-23:54:49.0 |
HIP 91405 |
25.56 |
| 2026-09-23 12:00 |
18:37:59.62 |
-23:54:49.5 |
HIP 91405 |
25.55 |
| 2026-09-24 00:00 |
18:38:00.04 |
-23:54:49.8 |
HIP 91405 |
25.53 |
| 2026-09-24 12:00 |
18:38:00.55 |
-23:54:50.1 |
HIP 91405 |
25.50 |
| 2026-09-25 00:00 |
18:38:01.16 |
-23:54:50.3 |
HIP 91405 |
25.46 |
| 2026-09-25 12:00 |
18:38:01.86 |
-23:54:50.4 |
HIP 91405 |
25.42 |
| 2026-09-26 00:00 |
18:38:02.67 |
-23:54:50.4 |
HIP 91405 |
25.37 |
| 2026-09-26 12:00 |
18:38:03.58 |
-23:54:50.3 |
HIP 91405 |
25.32 |
| 2026-09-27 00:00 |
18:38:04.58 |
-23:54:50.2 |
HIP 91405 |
25.26 |
| 2026-09-27 12:00 |
18:38:05.68 |
-23:54:49.9 |
HIP 91405 |
25.20 |
| 2026-09-28 00:00 |
18:38:06.88 |
-23:54:49.5 |
HIP 91405 |
25.13 |
| 2026-09-28 12:00 |
18:38:08.18 |
-23:54:49.1 |
HIP 91405 |
25.06 |
| 2026-09-29 00:00 |
18:38:09.58 |
-23:54:48.5 |
HIP 91405 |
24.99 |
| 2026-09-29 12:00 |
18:38:11.07 |
-23:54:47.9 |
HIP 91405 |
24.92 |
| 2026-09-30 00:00 |
18:38:12.66 |
-23:54:47.2 |
HIP 91405 |
24.84 |
| 2026-09-30 12:00 |
18:38:14.35 |
-23:54:46.4 |
HIP 91405 |
24.77 |
| 2026-10-01 00:00 |
18:38:16.14 |
-23:54:45.4 |
HIP 91405 |
24.69 |
| 2026-10-01 12:00 |
18:38:18.02 |
-23:54:44.4 |
HIP 91405 |
24.62 |
| 2026-10-02 00:00 |
18:38:20.00 |
-23:54:43.4 |
HIP 91405 |
24.55 |
| 2026-10-02 12:00 |
18:38:22.08 |
-23:54:42.2 |
HIP 91405 |
24.49 |
| 2026-10-03 00:00 |
18:38:24.25 |
-23:54:40.9 |
HIP 91405 |
24.44 |
| 2026-10-03 12:00 |
18:38:26.52 |
-23:54:39.6 |
HIP 91405 |
24.39 |
| 2026-10-04 00:00 |
18:38:28.89 |
-23:54:38.1 |
HIP 91405 |
24.35 |
| 2026-10-04 12:00 |
18:38:31.35 |
-23:54:36.6 |
HIP 91405 |
24.32 |
| 2026-10-05 00:00 |
18:38:33.91 |
-23:54:34.9 |
HIP 91405 |
24.30 |
| 2026-10-05 12:00 |
18:38:36.57 |
-23:54:33.2 |
HIP 91405 |
24.30 |
| 2026-10-06 00:00 |
18:38:39.32 |
-23:54:31.4 |
HIP 91405 |
24.31 |
| 2026-10-06 12:00 |
18:38:42.16 |
-23:54:29.5 |
HIP 91405 |
24.34 |
| 2026-10-07 00:00 |
18:38:45.11 |
-23:54:27.5 |
HIP 91405 |
24.39 |
| 2026-10-07 12:00 |
18:38:48.14 |
-23:54:25.4 |
HIP 91405 |
24.46 |
| 2026-10-08 00:00 |
18:38:51.27 |
-23:54:23.2 |
HIP 91405 |
24.55 |
| 2026-10-08 12:00 |
18:38:54.50 |
-23:54:21.0 |
HIP 91405 |
24.67 |
| 2026-10-09 00:00 |
18:38:57.82 |
-23:54:18.6 |
HIP 91405 |
24.81 |
| 2026-10-09 12:00 |
18:39:01.24 |
-23:54:16.2 |
HIP 91405 |
24.98 |
| 2026-10-10 00:00 |
18:39:04.75 |
-23:54:13.6 |
HIP 91405 |
25.17 |
| 2026-10-10 12:00 |
18:39:08.35 |
-23:54:11.0 |
HIP 91405 |
25.40 |
| 2026-10-11 00:00 |
18:39:12.05 |
-23:54:08.3 |
HIP 91405 |
25.66 |