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) |
| 2026-07-29 00:00 |
16:26:48.01 |
+41:33:51.2 |
HIP 80660 |
16.08 |
| 2026-07-29 12:00 |
16:26:45.79 |
+41:33:15.7 |
HIP 80660 |
16.24 |
| 2026-07-30 00:00 |
16:26:43.59 |
+41:32:39.9 |
HIP 80660 |
16.43 |
| 2026-07-30 12:00 |
16:26:41.43 |
+41:32:03.9 |
HIP 80660 |
16.65 |
| 2026-07-31 00:00 |
16:26:39.29 |
+41:31:27.8 |
HIP 80660 |
16.89 |
| 2026-07-31 12:00 |
16:26:37.19 |
+41:30:51.5 |
HIP 80660 |
17.14 |
| 2026-08-01 00:00 |
16:26:35.12 |
+41:30:14.9 |
HIP 80592 |
17.10 |
| 2026-08-01 12:00 |
16:26:33.07 |
+41:29:38.2 |
HIP 80592 |
16.73 |
| 2026-08-02 00:00 |
16:26:31.06 |
+41:29:01.3 |
HIP 80592 |
16.38 |
| 2026-08-02 12:00 |
16:26:29.08 |
+41:28:24.2 |
HIP 80592 |
16.05 |
| 2026-08-03 00:00 |
16:26:27.13 |
+41:27:46.9 |
HIP 80592 |
15.74 |
| 2026-08-03 12:00 |
16:26:25.21 |
+41:27:09.5 |
HIP 80592 |
15.45 |
| 2026-08-04 00:00 |
16:26:23.32 |
+41:26:31.8 |
HIP 80592 |
15.18 |
| 2026-08-04 12:00 |
16:26:21.46 |
+41:25:54.0 |
HIP 80592 |
14.94 |
| 2026-08-05 00:00 |
16:26:19.64 |
+41:25:16.1 |
HIP 80592 |
14.72 |
| 2026-08-05 12:00 |
16:26:17.84 |
+41:24:37.9 |
HIP 80592 |
14.53 |
| 2026-08-06 00:00 |
16:26:16.08 |
+41:23:59.6 |
HIP 80592 |
14.37 |
| 2026-08-06 12:00 |
16:26:14.35 |
+41:23:21.2 |
HIP 80592 |
14.23 |
| 2026-08-07 00:00 |
16:26:12.66 |
+41:22:42.5 |
HIP 80592 |
14.13 |
| 2026-08-07 12:00 |
16:26:10.99 |
+41:22:03.7 |
HIP 80592 |
14.05 |
| 2026-08-08 00:00 |
16:26:09.36 |
+41:21:24.8 |
HIP 80592 |
14.00 |
| 2026-08-08 12:00 |
16:26:07.75 |
+41:20:45.7 |
HIP 80592 |
13.99 |
| 2026-08-09 00:00 |
16:26:06.19 |
+41:20:06.4 |
HIP 80592 |
14.00 |
| 2026-08-09 12:00 |
16:26:04.65 |
+41:19:27.0 |
HIP 80592 |
14.04 |
| 2026-08-10 00:00 |
16:26:03.15 |
+41:18:47.5 |
HIP 80592 |
14.12 |
| 2026-08-10 12:00 |
16:26:01.68 |
+41:18:07.8 |
HIP 80592 |
14.22 |
| 2026-08-11 00:00 |
16:26:00.24 |
+41:17:28.0 |
HIP 80592 |
14.35 |
| 2026-08-11 12:00 |
16:25:58.83 |
+41:16:48.0 |
HIP 80592 |
14.51 |
| 2026-08-12 00:00 |
16:25:57.46 |
+41:16:07.9 |
HIP 80592 |
14.69 |
| 2026-08-12 12:00 |
16:25:56.12 |
+41:15:27.7 |
HIP 80592 |
14.91 |
| 2026-08-13 00:00 |
16:25:54.82 |
+41:14:47.4 |
HIP 80592 |
15.14 |
| 2026-08-13 12:00 |
16:25:53.54 |
+41:14:06.9 |
HIP 80592 |
15.40 |
| 2026-08-14 00:00 |
16:25:52.31 |
+41:13:26.3 |
HIP 80592 |
15.69 |
| 2026-08-14 12:00 |
16:25:51.10 |
+41:12:45.6 |
HIP 80592 |
15.99 |
| 2026-08-15 00:00 |
16:25:49.93 |
+41:12:04.7 |
HIP 80592 |
16.31 |
| 2026-08-15 12:00 |
16:25:48.79 |
+41:11:23.8 |
HIP 80592 |
16.66 |
| 2026-08-16 00:00 |
16:25:47.69 |
+41:10:42.7 |
HIP 80592 |
17.02 |
| 2026-08-16 12:00 |
16:25:46.62 |
+41:10:01.6 |
HIP 80592 |
17.39 |
| 2026-08-17 00:00 |
16:25:45.58 |
+41:09:20.3 |
HIP 80592 |
17.79 |
| 2026-08-17 12:00 |
16:25:44.57 |
+41:08:39.0 |
HIP 80549 |
17.72 |
| 2026-08-18 00:00 |
16:25:43.60 |
+41:07:57.5 |
HIP 80549 |
17.30 |
| 2026-08-18 12:00 |
16:25:42.67 |
+41:07:15.9 |
HIP 80549 |
16.90 |
| 2026-08-19 00:00 |
16:25:41.77 |
+41:06:34.3 |
HIP 80549 |
16.52 |