메타데이터
| 항목 |
값 |
| Designation |
C/2006 K3 (McNaught) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2007-03-13T08:54:02.200320Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:57Z |
| Obs used |
205 |
| NEO |
- |
| M1 |
12.500 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2006-11-30.0000000 |
| e |
1.00079393 |
| q (au) |
2.501449 |
| a (au) |
-3150.724234 |
| i (deg) |
92.619997 |
| Ω (om, deg) |
49.402439 |
| ω (w, deg) |
328.077856 |
| M (ma, deg) |
-0.000576 |
밝기
산란 + 전체 선형
$$
M_a = (15.835 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
15.835 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.800 |
| 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 |
| 2006-05-22 |
2007-03-09 |
-2.3577 |
+1.206 |
| 2007-07-25 |
2008-01-26 |
+22.6017 |
-11.094 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
16:36:24.51 |
+42:05:42.5 |
HIP 81416 |
22.69 |
| 2026-05-12 12:00 |
16:36:20.49 |
+42:05:57.0 |
HIP 81416 |
22.97 |
| 2026-05-13 00:00 |
16:36:16.46 |
+42:06:11.2 |
HIP 81416 |
23.28 |
| 2026-05-13 12:00 |
16:36:12.41 |
+42:06:25.1 |
HIP 81416 |
23.62 |
| 2026-05-14 00:00 |
16:36:08.36 |
+42:06:38.6 |
HIP 81416 |
23.98 |
| 2026-05-14 12:00 |
16:36:04.29 |
+42:06:51.8 |
HIP 81416 |
24.37 |
| 2026-05-15 00:00 |
16:36:00.21 |
+42:07:04.6 |
HIP 81416 |
24.78 |
| 2026-05-15 12:00 |
16:35:56.13 |
+42:07:17.1 |
HIP 81416 |
25.22 |
| 2026-05-16 00:00 |
16:35:52.03 |
+42:07:29.2 |
HIP 81416 |
25.67 |
| 2026-05-16 12:00 |
16:35:47.92 |
+42:07:41.0 |
HIP 81416 |
26.15 |
| 2026-05-17 00:00 |
16:35:43.80 |
+42:07:52.5 |
HIP 81126 |
25.73 |
| 2026-05-17 12:00 |
16:35:39.68 |
+42:08:03.5 |
HIP 81126 |
25.07 |
| 2026-05-18 00:00 |
16:35:35.54 |
+42:08:14.3 |
HIP 81126 |
24.42 |
| 2026-05-18 12:00 |
16:35:31.40 |
+42:08:24.6 |
HIP 81126 |
23.78 |
| 2026-05-19 00:00 |
16:35:27.25 |
+42:08:34.6 |
HIP 81126 |
23.15 |
| 2026-05-19 12:00 |
16:35:23.09 |
+42:08:44.3 |
HIP 81126 |
22.53 |
| 2026-05-20 00:00 |
16:35:18.92 |
+42:08:53.6 |
HIP 81126 |
21.93 |
| 2026-05-20 12:00 |
16:35:14.75 |
+42:09:02.5 |
HIP 81126 |
21.34 |
| 2026-05-21 00:00 |
16:35:10.57 |
+42:09:11.1 |
HIP 81126 |
20.78 |
| 2026-05-21 12:00 |
16:35:06.38 |
+42:09:19.4 |
HIP 81126 |
20.23 |
| 2026-05-22 00:00 |
16:35:02.19 |
+42:09:27.2 |
HIP 81126 |
19.70 |
| 2026-05-22 12:00 |
16:34:57.99 |
+42:09:34.7 |
HIP 81126 |
19.20 |
| 2026-05-23 00:00 |
16:34:53.79 |
+42:09:41.9 |
HIP 81126 |
18.71 |
| 2026-05-23 12:00 |
16:34:49.58 |
+42:09:48.7 |
HIP 81126 |
18.26 |
| 2026-05-24 00:00 |
16:34:45.37 |
+42:09:55.1 |
HIP 81126 |
17.83 |
| 2026-05-24 12:00 |
16:34:41.15 |
+42:10:01.2 |
HIP 81126 |
17.44 |
| 2026-05-25 00:00 |
16:34:36.93 |
+42:10:06.9 |
HIP 81126 |
17.07 |
| 2026-05-25 12:00 |
16:34:32.71 |
+42:10:12.2 |
HIP 81126 |
16.74 |
| 2026-05-26 00:00 |
16:34:28.48 |
+42:10:17.2 |
HIP 81126 |
16.45 |
| 2026-05-26 12:00 |
16:34:24.25 |
+42:10:21.8 |
HIP 81126 |
16.20 |
| 2026-05-27 00:00 |
16:34:20.02 |
+42:10:26.1 |
HIP 81126 |
15.99 |
| 2026-05-27 12:00 |
16:34:15.78 |
+42:10:30.0 |
HIP 81126 |
15.81 |
| 2026-05-28 00:00 |
16:34:11.54 |
+42:10:33.5 |
HIP 81126 |
15.69 |
| 2026-05-28 12:00 |
16:34:07.30 |
+42:10:36.7 |
HIP 81126 |
15.60 |
| 2026-05-29 00:00 |
16:34:03.06 |
+42:10:39.5 |
HIP 81126 |
15.57 |
| 2026-05-29 12:00 |
16:33:58.82 |
+42:10:41.9 |
HIP 81126 |
15.57 |
| 2026-05-30 00:00 |
16:33:54.58 |
+42:10:44.0 |
HIP 81126 |
15.63 |
| 2026-05-30 12:00 |
16:33:50.33 |
+42:10:45.7 |
HIP 81126 |
15.73 |
| 2026-05-31 00:00 |
16:33:46.09 |
+42:10:47.1 |
HIP 81126 |
15.87 |
| 2026-05-31 12:00 |
16:33:41.85 |
+42:10:48.1 |
HIP 81126 |
16.06 |
| 2026-06-01 00:00 |
16:33:37.60 |
+42:10:48.7 |
HIP 81126 |
16.28 |
| 2026-06-01 12:00 |
16:33:33.36 |
+42:10:49.0 |
HIP 81126 |
16.55 |
| 2026-06-02 00:00 |
16:33:29.12 |
+42:10:48.9 |
HIP 81126 |
16.86 |