메타데이터
| 항목 |
값 |
| Designation |
135P/Shoemaker-Levy 8 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
1999-12-10T12:02:32.936640Z |
| Orbit solution date (soln_date, UTC) |
2024-03-14T08:42:34Z |
| Obs used |
115 |
| NEO |
- |
| M1 |
7.000 |
| K1 |
17.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1997-02-21.0000000 |
| e |
0.29022851 |
| q (au) |
2.716890 |
| a (au) |
3.827837 |
| i (deg) |
6.050581 |
| Ω (om, deg) |
213.361982 |
| ω (w, deg) |
22.698035 |
| M (ma, deg) |
225.433199 |
밝기
산란 + 전체 선형
$$
M_a = (14.084 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.084 |
| n |
2.000 |
| gf |
0.998 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
9.995 |
| 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 |
05:54:10.24 |
+19:11:25.7 |
HIP 27911 |
17.64 |
| 2026-09-20 12:00 |
05:54:21.07 |
+19:10:50.5 |
HIP 27911 |
16.82 |
| 2026-09-21 00:00 |
05:54:31.71 |
+19:10:15.1 |
HIP 27911 |
16.37 |
| 2026-09-21 12:00 |
05:54:42.16 |
+19:09:39.5 |
HIP 27911 |
16.32 |
| 2026-09-22 00:00 |
05:54:52.42 |
+19:09:03.7 |
HIP 27911 |
16.63 |
| 2026-09-22 12:00 |
05:55:02.50 |
+19:08:27.7 |
HIP 27911 |
17.27 |
| 2026-09-23 00:00 |
05:55:12.38 |
+19:07:51.5 |
HIP 27911 |
18.19 |
| 2026-09-23 12:00 |
05:55:22.06 |
+19:07:15.2 |
HIP 28046 |
17.96 |
| 2026-09-24 00:00 |
05:55:31.56 |
+19:06:38.6 |
HIP 28046 |
17.78 |
| 2026-09-24 12:00 |
05:55:40.86 |
+19:06:01.9 |
HIP 28046 |
17.92 |
| 2026-09-25 00:00 |
05:55:49.96 |
+19:05:25.0 |
HIP 28046 |
18.35 |
| 2026-09-25 12:00 |
05:55:58.87 |
+19:04:48.0 |
HIP 28170 |
18.33 |
| 2026-09-26 00:00 |
05:56:07.58 |
+19:04:10.7 |
HIP 28170 |
16.83 |
| 2026-09-26 12:00 |
05:56:16.09 |
+19:03:33.3 |
HIP 28170 |
15.53 |
| 2026-09-27 00:00 |
05:56:24.40 |
+19:02:55.8 |
HIP 28170 |
14.45 |
| 2026-09-27 12:00 |
05:56:32.51 |
+19:02:18.0 |
HIP 28170 |
13.63 |
| 2026-09-28 00:00 |
05:56:40.42 |
+19:01:40.1 |
HIP 28170 |
13.10 |
| 2026-09-28 12:00 |
05:56:48.13 |
+19:01:02.1 |
HIP 28170 |
12.88 |
| 2026-09-29 00:00 |
05:56:55.64 |
+19:00:23.9 |
HIP 28170 |
12.95 |
| 2026-09-29 12:00 |
05:57:02.94 |
+18:59:45.6 |
HIP 28170 |
13.31 |
| 2026-09-30 00:00 |
05:57:10.03 |
+18:59:07.1 |
HIP 28170 |
13.89 |
| 2026-09-30 12:00 |
05:57:16.92 |
+18:58:28.4 |
HIP 28170 |
14.67 |
| 2026-10-01 00:00 |
05:57:23.60 |
+18:57:49.6 |
HIP 28170 |
15.60 |
| 2026-10-01 12:00 |
05:57:30.07 |
+18:57:10.7 |
HIP 28170 |
16.64 |
| 2026-10-02 00:00 |
05:57:36.33 |
+18:56:31.7 |
HIP 28170 |
17.76 |
| 2026-10-02 12:00 |
05:57:42.38 |
+18:55:52.5 |
HIP 28312 |
17.90 |
| 2026-10-03 00:00 |
05:57:48.22 |
+18:55:13.2 |
HIP 28312 |
16.67 |
| 2026-10-03 12:00 |
05:57:53.85 |
+18:54:33.8 |
HIP 28307 |
15.38 |
| 2026-10-04 00:00 |
05:57:59.26 |
+18:53:54.2 |
HIP 28307 |
13.95 |
| 2026-10-04 12:00 |
05:58:04.45 |
+18:53:14.5 |
HIP 28307 |
12.57 |
| 2026-10-05 00:00 |
05:58:09.44 |
+18:52:34.7 |
HIP 28307 |
11.24 |
| 2026-10-05 12:00 |
05:58:14.20 |
+18:51:54.8 |
HIP 28307 |
9.98 |
| 2026-10-06 00:00 |
05:58:18.74 |
+18:51:14.8 |
HIP 28307 |
8.77 |
| 2026-10-06 12:00 |
05:58:23.07 |
+18:50:34.7 |
HIP 28307 |
7.63 |
| 2026-10-07 00:00 |
05:58:27.17 |
+18:49:54.5 |
HIP 28307 |
6.57 |
| 2026-10-07 12:00 |
05:58:31.06 |
+18:49:14.2 |
HIP 28307 |
5.61 |
| 2026-10-08 00:00 |
05:58:34.72 |
+18:48:33.8 |
HIP 28307 |
4.79 |
| 2026-10-08 12:00 |
05:58:38.16 |
+18:47:53.3 |
HIP 28307 |
4.15 |
| 2026-10-09 00:00 |
05:58:41.38 |
+18:47:12.7 |
HIP 28307 |
3.75 |
| 2026-10-09 12:00 |
05:58:44.37 |
+18:46:32.0 |
HIP 28307 |
3.64 |
| 2026-10-10 00:00 |
05:58:47.14 |
+18:45:51.2 |
HIP 28307 |
3.81 |
| 2026-10-10 12:00 |
05:58:49.69 |
+18:45:10.4 |
HIP 28307 |
4.22 |
| 2026-10-11 00:00 |
05:58:52.00 |
+18:44:29.5 |
HIP 28307 |
4.77 |