메타데이터
| 항목 |
값 |
| Designation |
C/2005 L3 (McNaught) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2008-01-16T08:18:53.772480Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:51Z |
| Obs used |
5219 |
| NEO |
- |
| M1 |
8.400 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2008-09-20.0000000 |
| e |
0.99958663 |
| q (au) |
5.593628 |
| a (au) |
13531.707446 |
| i (deg) |
139.449247 |
| Ω (om, deg) |
288.739815 |
| ω (w, deg) |
47.133870 |
| M (ma, deg) |
0.000155 |
밝기
산란 + 전체 선형
$$
M_a = (5.595 + 2.591\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.595 |
| n |
2.591 |
| gf |
1.000 |
| gb |
-0.502 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2004-07-16 |
2008-01-12 |
+3.1774 |
-2.093 |
| 2008-01-25 |
2010-02-06 |
-2.6501 |
+1.894 |
| 2010-02-06 |
2014-01-09 |
-0.3685 |
+0.184 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
07:18:19.68 |
+22:27:25.2 |
HIP 35545 |
24.78 |
| 2026-06-01 12:00 |
07:18:22.19 |
+22:27:17.2 |
HIP 35545 |
24.19 |
| 2026-06-02 00:00 |
07:18:24.71 |
+22:27:09.1 |
HIP 35545 |
23.59 |
| 2026-06-02 12:00 |
07:18:27.26 |
+22:27:01.0 |
HIP 35545 |
22.99 |
| 2026-06-03 00:00 |
07:18:29.82 |
+22:26:52.9 |
HIP 35545 |
22.39 |
| 2026-06-03 12:00 |
07:18:32.40 |
+22:26:44.8 |
HIP 35545 |
21.78 |
| 2026-06-04 00:00 |
07:18:34.99 |
+22:26:36.6 |
HIP 35545 |
21.17 |
| 2026-06-04 12:00 |
07:18:37.60 |
+22:26:28.4 |
HIP 35545 |
20.56 |
| 2026-06-05 00:00 |
07:18:40.23 |
+22:26:20.2 |
HIP 35545 |
19.94 |
| 2026-06-05 12:00 |
07:18:42.87 |
+22:26:11.9 |
HIP 35545 |
19.33 |
| 2026-06-06 00:00 |
07:18:45.53 |
+22:26:03.6 |
HIP 35545 |
18.70 |
| 2026-06-06 12:00 |
07:18:48.20 |
+22:25:55.3 |
HIP 35545 |
18.08 |
| 2026-06-07 00:00 |
07:18:50.89 |
+22:25:46.9 |
HIP 35545 |
17.45 |
| 2026-06-07 12:00 |
07:18:53.60 |
+22:25:38.5 |
HIP 35545 |
16.81 |
| 2026-06-08 00:00 |
07:18:56.32 |
+22:25:30.1 |
HIP 35545 |
16.18 |
| 2026-06-08 12:00 |
07:18:59.05 |
+22:25:21.7 |
HIP 35545 |
15.54 |
| 2026-06-09 00:00 |
07:19:01.80 |
+22:25:13.2 |
HIP 35545 |
14.90 |
| 2026-06-09 12:00 |
07:19:04.56 |
+22:25:04.7 |
HIP 35545 |
14.26 |
| 2026-06-10 00:00 |
07:19:07.34 |
+22:24:56.2 |
HIP 35545 |
13.61 |
| 2026-06-10 12:00 |
07:19:10.13 |
+22:24:47.6 |
HIP 35545 |
12.97 |
| 2026-06-11 00:00 |
07:19:12.93 |
+22:24:39.1 |
HIP 35545 |
12.32 |
| 2026-06-11 12:00 |
07:19:15.75 |
+22:24:30.4 |
HIP 35545 |
11.67 |
| 2026-06-12 00:00 |
07:19:18.58 |
+22:24:21.8 |
HIP 35545 |
11.01 |
| 2026-06-12 12:00 |
07:19:21.42 |
+22:24:13.2 |
HIP 35545 |
10.36 |
| 2026-06-13 00:00 |
07:19:24.28 |
+22:24:04.5 |
HIP 35545 |
9.71 |
| 2026-06-13 12:00 |
07:19:27.15 |
+22:23:55.8 |
HIP 35545 |
9.06 |
| 2026-06-14 00:00 |
07:19:30.03 |
+22:23:47.1 |
HIP 35545 |
8.41 |
| 2026-06-14 12:00 |
07:19:32.92 |
+22:23:38.3 |
HIP 35545 |
7.76 |
| 2026-06-15 00:00 |
07:19:35.82 |
+22:23:29.5 |
HIP 35545 |
7.12 |
| 2026-06-15 12:00 |
07:19:38.74 |
+22:23:20.7 |
HIP 35545 |
6.48 |
| 2026-06-16 00:00 |
07:19:41.67 |
+22:23:11.9 |
HIP 35545 |
5.85 |
| 2026-06-16 12:00 |
07:19:44.61 |
+22:23:03.1 |
HIP 35545 |
5.24 |
| 2026-06-17 00:00 |
07:19:47.56 |
+22:22:54.2 |
HIP 35545 |
4.65 |
| 2026-06-17 12:00 |
07:19:50.52 |
+22:22:45.3 |
HIP 35545 |
4.08 |
| 2026-06-18 00:00 |
07:19:53.49 |
+22:22:36.4 |
HIP 35545 |
3.57 |
| 2026-06-18 12:00 |
07:19:56.47 |
+22:22:27.5 |
HIP 35545 |
3.13 |
| 2026-06-19 00:00 |
07:19:59.46 |
+22:22:18.5 |
HIP 35545 |
2.80 |
| 2026-06-19 12:00 |
07:20:02.46 |
+22:22:09.5 |
HIP 35545 |
2.62 |
| 2026-06-20 00:00 |
07:20:05.47 |
+22:22:00.6 |
HIP 35545 |
2.63 |
| 2026-06-20 12:00 |
07:20:08.49 |
+22:21:51.5 |
HIP 35545 |
2.82 |
| 2026-06-21 00:00 |
07:20:11.52 |
+22:21:42.5 |
HIP 35545 |
3.17 |
| 2026-06-21 12:00 |
07:20:14.56 |
+22:21:33.5 |
HIP 35545 |
3.63 |
| 2026-06-22 00:00 |
07:20:17.60 |
+22:21:24.4 |
HIP 35545 |
4.16 |