메타데이터
| 항목 |
값 |
| Designation |
C/2007 K6 (McNaught) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2007-07-01T11:27:01.267200Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:09Z |
| Obs used |
44 |
| NEO |
- |
| M1 |
10.600 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2007-07-12.0000000 |
| e |
0.98462944 |
| q (au) |
3.432981 |
| a (au) |
223.347812 |
| i (deg) |
105.063716 |
| Ω (om, deg) |
298.075171 |
| ω (w, deg) |
337.140500 |
| M (ma, deg) |
0.003107 |
밝기
산란 + 전체 선형
$$
M_a = (12.677 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.677 |
| n |
2.000 |
| gf |
0.995 |
| gb |
-0.832 |
| k |
0.999 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
11:37:34.28 |
+64:00:49.3 |
HIP 56773 |
11.11 |
| 2026-06-01 12:00 |
11:37:32.19 |
+64:00:08.8 |
HIP 56773 |
11.82 |
| 2026-06-02 00:00 |
11:37:30.16 |
+63:59:28.0 |
HIP 56773 |
12.52 |
| 2026-06-02 12:00 |
11:37:28.18 |
+63:58:47.1 |
HIP 56773 |
13.23 |
| 2026-06-03 00:00 |
11:37:26.27 |
+63:58:06.1 |
HIP 56773 |
13.93 |
| 2026-06-03 12:00 |
11:37:24.41 |
+63:57:25.0 |
HIP 56773 |
14.64 |
| 2026-06-04 00:00 |
11:37:22.61 |
+63:56:43.7 |
HIP 56773 |
15.35 |
| 2026-06-04 12:00 |
11:37:20.87 |
+63:56:02.3 |
HIP 56512 |
15.80 |
| 2026-06-05 00:00 |
11:37:19.18 |
+63:55:20.7 |
HIP 56512 |
15.38 |
| 2026-06-05 12:00 |
11:37:17.56 |
+63:54:39.1 |
HIP 56512 |
14.99 |
| 2026-06-06 00:00 |
11:37:15.99 |
+63:53:57.3 |
HIP 56512 |
14.62 |
| 2026-06-06 12:00 |
11:37:14.48 |
+63:53:15.4 |
HIP 56512 |
14.29 |
| 2026-06-07 00:00 |
11:37:13.03 |
+63:52:33.3 |
HIP 56512 |
14.00 |
| 2026-06-07 12:00 |
11:37:11.63 |
+63:51:51.2 |
HIP 56512 |
13.74 |
| 2026-06-08 00:00 |
11:37:10.30 |
+63:51:08.9 |
HIP 56512 |
13.52 |
| 2026-06-08 12:00 |
11:37:09.02 |
+63:50:26.6 |
HIP 56512 |
13.34 |
| 2026-06-09 00:00 |
11:37:07.80 |
+63:49:44.1 |
HIP 56512 |
13.21 |
| 2026-06-09 12:00 |
11:37:06.63 |
+63:49:01.5 |
HIP 56512 |
13.12 |
| 2026-06-10 00:00 |
11:37:05.53 |
+63:48:18.9 |
HIP 56512 |
13.07 |
| 2026-06-10 12:00 |
11:37:04.48 |
+63:47:36.1 |
HIP 56512 |
13.08 |
| 2026-06-11 00:00 |
11:37:03.49 |
+63:46:53.2 |
HIP 56512 |
13.12 |
| 2026-06-11 12:00 |
11:37:02.56 |
+63:46:10.3 |
HIP 56512 |
13.22 |
| 2026-06-12 00:00 |
11:37:01.68 |
+63:45:27.3 |
HIP 56512 |
13.36 |
| 2026-06-12 12:00 |
11:37:00.87 |
+63:44:44.1 |
HIP 56512 |
13.54 |
| 2026-06-13 00:00 |
11:37:00.11 |
+63:44:00.9 |
HIP 56512 |
13.76 |
| 2026-06-13 12:00 |
11:36:59.41 |
+63:43:17.7 |
HIP 56512 |
14.03 |
| 2026-06-14 00:00 |
11:36:58.76 |
+63:42:34.3 |
HIP 56512 |
14.33 |
| 2026-06-14 12:00 |
11:36:58.17 |
+63:41:50.9 |
HIP 56512 |
14.67 |
| 2026-06-15 00:00 |
11:36:57.64 |
+63:41:07.4 |
HIP 56512 |
15.04 |
| 2026-06-15 12:00 |
11:36:57.17 |
+63:40:23.8 |
HIP 56472 |
15.10 |
| 2026-06-16 00:00 |
11:36:56.75 |
+63:39:40.2 |
HIP 56472 |
15.00 |
| 2026-06-16 12:00 |
11:36:56.40 |
+63:38:56.5 |
HIP 56472 |
14.94 |
| 2026-06-17 00:00 |
11:36:56.09 |
+63:38:12.8 |
HIP 56472 |
14.92 |
| 2026-06-17 12:00 |
11:36:55.85 |
+63:37:29.0 |
HIP 56472 |
14.95 |
| 2026-06-18 00:00 |
11:36:55.66 |
+63:36:45.2 |
HIP 56472 |
15.01 |
| 2026-06-18 12:00 |
11:36:55.53 |
+63:36:01.3 |
HIP 56472 |
15.12 |
| 2026-06-19 00:00 |
11:36:55.45 |
+63:35:17.4 |
HIP 56472 |
15.27 |
| 2026-06-19 12:00 |
11:36:55.43 |
+63:34:33.4 |
HIP 56472 |
15.45 |
| 2026-06-20 00:00 |
11:36:55.46 |
+63:33:49.4 |
HIP 56472 |
15.68 |
| 2026-06-20 12:00 |
11:36:55.56 |
+63:33:05.4 |
HIP 56472 |
15.94 |
| 2026-06-21 00:00 |
11:36:55.70 |
+63:32:21.3 |
HIP 56472 |
16.24 |
| 2026-06-21 12:00 |
11:36:55.90 |
+63:31:37.2 |
HIP 56472 |
16.57 |
| 2026-06-22 00:00 |
11:36:56.16 |
+63:30:53.1 |
HIP 56472 |
16.93 |