메타데이터
| 항목 |
값 |
| Designation |
C/2003 K4 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2004-10-13T17:15:09.331200Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:30Z |
| Obs used |
3625 |
| NEO |
- |
| M1 |
7.500 |
| K1 |
7.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2004-06-15.0000000 |
| e |
1.00030070 |
| q (au) |
1.023617 |
| a (au) |
-3404.074214 |
| i (deg) |
134.252518 |
| Ω (om, deg) |
18.675722 |
| ω (w, deg) |
198.442708 |
| M (ma, deg) |
-0.000599 |
밝기
산란 + 전체 선형
$$
M_a = (3.808 + 4.917\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
3.808 |
| n |
4.917 |
| gf |
1.000 |
| gb |
-0.895 |
| k |
0.998 |
| δ90 |
9.993 |
| 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) |
| 2026-07-29 00:00 |
01:11:41.64 |
+08:05:05.7 |
HIP 5562 |
16.41 |
| 2026-07-29 12:00 |
01:11:40.80 |
+08:05:02.0 |
HIP 5562 |
16.28 |
| 2026-07-30 00:00 |
01:11:39.95 |
+08:04:58.2 |
HIP 5562 |
16.15 |
| 2026-07-30 12:00 |
01:11:39.07 |
+08:04:54.3 |
HIP 5562 |
16.02 |
| 2026-07-31 00:00 |
01:11:38.17 |
+08:04:50.3 |
HIP 5562 |
15.89 |
| 2026-07-31 12:00 |
01:11:37.26 |
+08:04:46.1 |
HIP 5562 |
15.76 |
| 2026-08-01 00:00 |
01:11:36.32 |
+08:04:41.8 |
HIP 5562 |
15.62 |
| 2026-08-01 12:00 |
01:11:35.36 |
+08:04:37.4 |
HIP 5562 |
15.49 |
| 2026-08-02 00:00 |
01:11:34.38 |
+08:04:32.8 |
HIP 5562 |
15.35 |
| 2026-08-02 12:00 |
01:11:33.38 |
+08:04:28.2 |
HIP 5562 |
15.22 |
| 2026-08-03 00:00 |
01:11:32.36 |
+08:04:23.4 |
HIP 5562 |
15.08 |
| 2026-08-03 12:00 |
01:11:31.32 |
+08:04:18.5 |
HIP 5562 |
14.95 |
| 2026-08-04 00:00 |
01:11:30.25 |
+08:04:13.4 |
HIP 5562 |
14.81 |
| 2026-08-04 12:00 |
01:11:29.17 |
+08:04:08.2 |
HIP 5562 |
14.68 |
| 2026-08-05 00:00 |
01:11:28.07 |
+08:04:02.9 |
HIP 5562 |
14.55 |
| 2026-08-05 12:00 |
01:11:26.94 |
+08:03:57.5 |
HIP 5562 |
14.42 |
| 2026-08-06 00:00 |
01:11:25.80 |
+08:03:52.0 |
HIP 5562 |
14.29 |
| 2026-08-06 12:00 |
01:11:24.64 |
+08:03:46.3 |
HIP 5562 |
14.17 |
| 2026-08-07 00:00 |
01:11:23.45 |
+08:03:40.5 |
HIP 5562 |
14.04 |
| 2026-08-07 12:00 |
01:11:22.25 |
+08:03:34.6 |
HIP 5562 |
13.93 |
| 2026-08-08 00:00 |
01:11:21.03 |
+08:03:28.6 |
HIP 5562 |
13.81 |
| 2026-08-08 12:00 |
01:11:19.78 |
+08:03:22.4 |
HIP 5562 |
13.70 |
| 2026-08-09 00:00 |
01:11:18.52 |
+08:03:16.1 |
HIP 5562 |
13.60 |
| 2026-08-09 12:00 |
01:11:17.23 |
+08:03:09.7 |
HIP 5562 |
13.49 |
| 2026-08-10 00:00 |
01:11:15.93 |
+08:03:03.2 |
HIP 5562 |
13.40 |
| 2026-08-10 12:00 |
01:11:14.60 |
+08:02:56.5 |
HIP 5562 |
13.31 |
| 2026-08-11 00:00 |
01:11:13.26 |
+08:02:49.7 |
HIP 5562 |
13.23 |
| 2026-08-11 12:00 |
01:11:11.90 |
+08:02:42.8 |
HIP 5562 |
13.16 |
| 2026-08-12 00:00 |
01:11:10.52 |
+08:02:35.8 |
HIP 5562 |
13.09 |
| 2026-08-12 12:00 |
01:11:09.11 |
+08:02:28.7 |
HIP 5562 |
13.04 |
| 2026-08-13 00:00 |
01:11:07.69 |
+08:02:21.4 |
HIP 5562 |
12.99 |
| 2026-08-13 12:00 |
01:11:06.25 |
+08:02:14.1 |
HIP 5562 |
12.95 |
| 2026-08-14 00:00 |
01:11:04.79 |
+08:02:06.6 |
HIP 5562 |
12.93 |
| 2026-08-14 12:00 |
01:11:03.31 |
+08:01:59.0 |
HIP 5562 |
12.91 |
| 2026-08-15 00:00 |
01:11:01.82 |
+08:01:51.2 |
HIP 5562 |
12.90 |
| 2026-08-15 12:00 |
01:11:00.30 |
+08:01:43.4 |
HIP 5562 |
12.91 |
| 2026-08-16 00:00 |
01:10:58.77 |
+08:01:35.4 |
HIP 5562 |
12.93 |
| 2026-08-16 12:00 |
01:10:57.21 |
+08:01:27.4 |
HIP 5562 |
12.96 |
| 2026-08-17 00:00 |
01:10:55.64 |
+08:01:19.2 |
HIP 5562 |
13.01 |
| 2026-08-17 12:00 |
01:10:54.05 |
+08:01:10.9 |
HIP 5562 |
13.06 |
| 2026-08-18 00:00 |
01:10:52.44 |
+08:01:02.5 |
HIP 5562 |
13.14 |
| 2026-08-18 12:00 |
01:10:50.81 |
+08:00:54.0 |
HIP 5562 |
13.22 |
| 2026-08-19 00:00 |
01:10:49.17 |
+08:00:45.3 |
HIP 5562 |
13.32 |