메타데이터
| 항목 |
값 |
| Designation |
C/2002 K2 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-01-05T20:02:48.010560Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:16Z |
| Obs used |
136 |
| NEO |
- |
| M1 |
7.500 |
| K1 |
11.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2002-06-25.0000000 |
| e |
0.99313694 |
| q (au) |
5.235061 |
| a (au) |
762.787805 |
| i (deg) |
130.895647 |
| Ω (om, deg) |
294.556678 |
| ω (w, deg) |
26.665091 |
| M (ma, deg) |
0.007961 |
밝기
산란 + 전체 선형
$$
M_a = (8.268 + 3.515\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.268 |
| n |
3.515 |
| gf |
0.999 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
9.997 |
| 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 |
08:30:01.68 |
+29:33:01.2 |
HIP 41632 |
10.98 |
| 2026-06-01 12:00 |
08:30:03.22 |
+29:32:47.7 |
HIP 41632 |
11.19 |
| 2026-06-02 00:00 |
08:30:04.78 |
+29:32:34.2 |
HIP 41632 |
11.41 |
| 2026-06-02 12:00 |
08:30:06.36 |
+29:32:20.7 |
HIP 41632 |
11.64 |
| 2026-06-03 00:00 |
08:30:07.96 |
+29:32:07.1 |
HIP 41632 |
11.89 |
| 2026-06-03 12:00 |
08:30:09.58 |
+29:31:53.5 |
HIP 41632 |
12.15 |
| 2026-06-04 00:00 |
08:30:11.22 |
+29:31:39.9 |
HIP 41632 |
12.43 |
| 2026-06-04 12:00 |
08:30:12.88 |
+29:31:26.3 |
HIP 41632 |
12.72 |
| 2026-06-05 00:00 |
08:30:14.56 |
+29:31:12.6 |
HIP 41632 |
13.01 |
| 2026-06-05 12:00 |
08:30:16.26 |
+29:30:59.0 |
HIP 41632 |
13.32 |
| 2026-06-06 00:00 |
08:30:17.97 |
+29:30:45.3 |
HIP 41632 |
13.64 |
| 2026-06-06 12:00 |
08:30:19.71 |
+29:30:31.6 |
HIP 41632 |
13.97 |
| 2026-06-07 00:00 |
08:30:21.47 |
+29:30:17.8 |
HIP 41632 |
14.32 |
| 2026-06-07 12:00 |
08:30:23.24 |
+29:30:04.1 |
HIP 41632 |
14.67 |
| 2026-06-08 00:00 |
08:30:25.03 |
+29:29:50.3 |
HIP 41632 |
15.03 |
| 2026-06-08 12:00 |
08:30:26.84 |
+29:29:36.5 |
HIP 41632 |
15.39 |
| 2026-06-09 00:00 |
08:30:28.67 |
+29:29:22.7 |
HIP 41632 |
15.77 |
| 2026-06-09 12:00 |
08:30:30.52 |
+29:29:08.9 |
HIP 41632 |
16.16 |
| 2026-06-10 00:00 |
08:30:32.39 |
+29:28:55.1 |
HIP 41632 |
16.55 |
| 2026-06-10 12:00 |
08:30:34.27 |
+29:28:41.2 |
HIP 41632 |
16.95 |
| 2026-06-11 00:00 |
08:30:36.17 |
+29:28:27.4 |
HIP 41632 |
17.36 |
| 2026-06-11 12:00 |
08:30:38.09 |
+29:28:13.5 |
HIP 41632 |
17.78 |
| 2026-06-12 00:00 |
08:30:40.03 |
+29:27:59.6 |
HIP 41632 |
18.20 |
| 2026-06-12 12:00 |
08:30:41.98 |
+29:27:45.7 |
HIP 41632 |
18.63 |
| 2026-06-13 00:00 |
08:30:43.95 |
+29:27:31.8 |
HIP 41632 |
19.06 |
| 2026-06-13 12:00 |
08:30:45.94 |
+29:27:17.9 |
HIP 41632 |
19.50 |
| 2026-06-14 00:00 |
08:30:47.94 |
+29:27:04.0 |
HIP 41632 |
19.95 |
| 2026-06-14 12:00 |
08:30:49.96 |
+29:26:50.1 |
HIP 41632 |
20.41 |
| 2026-06-15 00:00 |
08:30:52.00 |
+29:26:36.1 |
HIP 41875 |
20.03 |
| 2026-06-15 12:00 |
08:30:54.06 |
+29:26:22.2 |
HIP 41875 |
19.53 |
| 2026-06-16 00:00 |
08:30:56.13 |
+29:26:08.3 |
HIP 41875 |
19.02 |
| 2026-06-16 12:00 |
08:30:58.21 |
+29:25:54.3 |
HIP 41875 |
18.51 |
| 2026-06-17 00:00 |
08:31:00.31 |
+29:25:40.4 |
HIP 41875 |
18.00 |
| 2026-06-17 12:00 |
08:31:02.43 |
+29:25:26.4 |
HIP 41875 |
17.49 |
| 2026-06-18 00:00 |
08:31:04.56 |
+29:25:12.5 |
HIP 41875 |
16.97 |
| 2026-06-18 12:00 |
08:31:06.71 |
+29:24:58.5 |
HIP 41875 |
16.45 |
| 2026-06-19 00:00 |
08:31:08.87 |
+29:24:44.5 |
HIP 41875 |
15.93 |
| 2026-06-19 12:00 |
08:31:11.05 |
+29:24:30.6 |
HIP 41875 |
15.40 |
| 2026-06-20 00:00 |
08:31:13.24 |
+29:24:16.6 |
HIP 41875 |
14.88 |
| 2026-06-20 12:00 |
08:31:15.45 |
+29:24:02.7 |
HIP 41875 |
14.35 |
| 2026-06-21 00:00 |
08:31:17.67 |
+29:23:48.8 |
HIP 41875 |
13.81 |
| 2026-06-21 12:00 |
08:31:19.90 |
+29:23:34.8 |
HIP 41875 |
13.28 |
| 2026-06-22 00:00 |
08:31:22.15 |
+29:23:20.9 |
HIP 41875 |
12.74 |