P/2005 L1 (McNaught)
메타데이터
| 항목 |
값 |
| Designation |
P/2005 L1 (McNaught) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2005-12-13T02:11:41.599680Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:50Z |
| Obs used |
257 |
| NEO |
- |
| M1 |
10.300 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2005-07-03.0000000 |
| e |
0.20923826 |
| q (au) |
3.142854 |
| a (au) |
3.974464 |
| i (deg) |
7.736935 |
| Ω (om, deg) |
138.329197 |
| ω (w, deg) |
149.558655 |
| M (ma, deg) |
339.713017 |
밝기
산란 + 전체 선형
$$
M_a = (H_0 + n\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
- |
| n |
- |
| gf |
- |
| gb |
- |
| k |
- |
| δ90 |
- |
| 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) |
| 2026-02-03 00:00 |
07:21:03.19 |
+20:01:07.9 |
HIP 35573 |
9.63 |
| 2026-02-03 12:00 |
07:20:46.48 |
+20:02:16.9 |
HIP 35573 |
5.98 |
| 2026-02-04 00:00 |
07:20:29.92 |
+20:03:25.6 |
HIP 35573 |
3.49 |
| 2026-02-04 12:00 |
07:20:13.49 |
+20:04:34.1 |
HIP 35573 |
4.61 |
| 2026-02-05 00:00 |
07:19:57.21 |
+20:05:42.2 |
HIP 35573 |
7.88 |
| 2026-02-05 12:00 |
07:19:41.08 |
+20:06:50.0 |
HIP 35573 |
11.58 |
| 2026-02-06 00:00 |
07:19:25.10 |
+20:07:57.4 |
HIP 35573 |
15.36 |
| 2026-02-06 12:00 |
07:19:09.28 |
+20:09:04.6 |
HIP 35573 |
19.16 |
| 2026-02-07 00:00 |
07:18:53.60 |
+20:10:11.4 |
HIP 35510 |
21.88 |
| 2026-02-07 12:00 |
07:18:38.09 |
+20:11:17.9 |
HIP 35510 |
23.39 |
| 2026-02-08 00:00 |
07:18:22.74 |
+20:12:24.1 |
HIP 35510 |
25.36 |
| 2026-02-08 12:00 |
07:18:07.54 |
+20:13:29.9 |
HIP 35510 |
27.67 |
| 2026-02-09 00:00 |
07:17:52.52 |
+20:14:35.3 |
HIP 35510 |
30.24 |
| 2026-02-09 12:00 |
07:17:37.66 |
+20:15:40.5 |
HIP 35280 |
29.34 |
| 2026-02-10 00:00 |
07:17:22.97 |
+20:16:45.2 |
HIP 35280 |
27.94 |
| 2026-02-10 12:00 |
07:17:08.46 |
+20:17:49.6 |
HIP 35280 |
26.96 |
| 2026-02-11 00:00 |
07:16:54.12 |
+20:18:53.7 |
HIP 35280 |
26.42 |
| 2026-02-11 12:00 |
07:16:39.95 |
+20:19:57.3 |
HIP 35280 |
26.34 |
| 2026-02-12 00:00 |
07:16:25.97 |
+20:21:00.6 |
HIP 35280 |
26.70 |
| 2026-02-12 12:00 |
07:16:12.16 |
+20:22:03.6 |
HIP 35011 |
24.67 |
| 2026-02-13 00:00 |
07:15:58.54 |
+20:23:06.1 |
HIP 35011 |
21.32 |
| 2026-02-13 12:00 |
07:15:45.10 |
+20:24:08.3 |
HIP 35011 |
18.01 |
| 2026-02-14 00:00 |
07:15:31.86 |
+20:25:10.0 |
HIP 35011 |
14.75 |
| 2026-02-14 12:00 |
07:15:18.80 |
+20:26:11.4 |
HIP 35011 |
11.54 |
| 2026-02-15 00:00 |
07:15:05.93 |
+20:27:12.4 |
HIP 35011 |
8.38 |
| 2026-02-15 12:00 |
07:14:53.26 |
+20:28:13.0 |
HIP 35011 |
5.30 |
| 2026-02-16 00:00 |
07:14:40.78 |
+20:29:13.3 |
HIP 35011 |
2.39 |
| 2026-02-16 12:00 |
07:14:28.50 |
+20:30:13.1 |
HIP 35011 |
1.52 |
| 2026-02-17 00:00 |
07:14:16.41 |
+20:31:12.5 |
HIP 35011 |
4.13 |
| 2026-02-17 12:00 |
07:14:04.53 |
+20:32:11.5 |
HIP 35011 |
7.01 |
| 2026-02-18 00:00 |
07:13:52.85 |
+20:33:10.0 |
HIP 35011 |
9.88 |
| 2026-02-18 12:00 |
07:13:41.38 |
+20:34:08.2 |
HIP 35011 |
12.72 |
| 2026-02-19 00:00 |
07:13:30.11 |
+20:35:06.0 |
HIP 35011 |
15.51 |
| 2026-02-19 12:00 |
07:13:19.04 |
+20:36:03.3 |
HIP 35011 |
18.26 |
| 2026-02-20 00:00 |
07:13:08.19 |
+20:37:00.2 |
HIP 35011 |
20.97 |
| 2026-02-20 12:00 |
07:12:57.54 |
+20:37:56.7 |
HIP 34845 |
20.59 |
| 2026-02-21 00:00 |
07:12:47.11 |
+20:38:52.8 |
HIP 34845 |
19.28 |
| 2026-02-21 12:00 |
07:12:36.89 |
+20:39:48.4 |
HIP 34845 |
18.25 |
| 2026-02-22 00:00 |
07:12:26.88 |
+20:40:43.6 |
HIP 34845 |
17.53 |
| 2026-02-22 12:00 |
07:12:17.09 |
+20:41:38.4 |
HIP 34845 |
17.15 |
| 2026-02-23 00:00 |
07:12:07.51 |
+20:42:32.7 |
HIP 34845 |
17.10 |
| 2026-02-23 12:00 |
07:11:58.15 |
+20:43:26.6 |
HIP 34845 |
17.37 |
| 2026-02-24 00:00 |
07:11:49.01 |
+20:44:20.1 |
HIP 34845 |
17.92 |