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C/2003 K4 (LINEAR)

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

C/2003 K4 (LINEAR) · Magnitude (Full range)

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)
2026-02-03 00:00 01:02:53.17 +07:04:23.1 HIP 4859 7.35
2026-02-03 12:00 01:02:54.27 +07:04:30.6 HIP 4859 7.64
2026-02-04 00:00 01:02:55.38 +07:04:38.3 HIP 4859 7.94
2026-02-04 12:00 01:02:56.51 +07:04:46.2 HIP 4859 8.24
2026-02-05 00:00 01:02:57.66 +07:04:54.1 HIP 4859 8.55
2026-02-05 12:00 01:02:58.83 +07:05:02.2 HIP 4859 8.86
2026-02-06 00:00 01:03:00.02 +07:05:10.4 HIP 4859 9.18
2026-02-06 12:00 01:03:01.23 +07:05:18.7 HIP 4859 9.51
2026-02-07 00:00 01:03:02.45 +07:05:27.1 HIP 4859 9.84
2026-02-07 12:00 01:03:03.70 +07:05:35.6 HIP 4859 10.17
2026-02-08 00:00 01:03:04.97 +07:05:44.3 HIP 4859 10.52
2026-02-08 12:00 01:03:06.25 +07:05:53.0 HIP 4859 10.86
2026-02-09 00:00 01:03:07.55 +07:06:01.9 HIP 4859 11.21
2026-02-09 12:00 01:03:08.88 +07:06:10.9 HIP 4859 11.57
2026-02-10 00:00 01:03:10.22 +07:06:20.1 HIP 4859 11.93
2026-02-10 12:00 01:03:11.58 +07:06:29.3 HIP 4859 12.30
2026-02-11 00:00 01:03:12.95 +07:06:38.6 HIP 4859 12.67
2026-02-11 12:00 01:03:14.35 +07:06:48.1 HIP 4859 13.05
2026-02-12 00:00 01:03:15.76 +07:06:57.7 HIP 4859 13.43
2026-02-12 12:00 01:03:17.19 +07:07:07.4 HIP 4859 13.82
2026-02-13 00:00 01:03:18.64 +07:07:17.2 HIP 4859 14.21
2026-02-13 12:00 01:03:20.11 +07:07:27.1 HIP 4859 14.61
2026-02-14 00:00 01:03:21.59 +07:07:37.1 HIP 4859 15.01
2026-02-14 12:00 01:03:23.09 +07:07:47.2 HIP 4859 15.41
2026-02-15 00:00 01:03:24.61 +07:07:57.4 HIP 4859 15.83
2026-02-15 12:00 01:03:26.15 +07:08:07.8 HIP 4859 16.24
2026-02-16 00:00 01:03:27.70 +07:08:18.2 HIP 4859 16.66
2026-02-16 12:00 01:03:29.27 +07:08:28.8 HIP 4859 17.09
2026-02-17 00:00 01:03:30.86 +07:08:39.4 HIP 4859 17.52
2026-02-17 12:00 01:03:32.46 +07:08:50.2 HIP 4859 17.95
2026-02-18 00:00 01:03:34.08 +07:09:01.0 HIP 4859 18.39
2026-02-18 12:00 01:03:35.72 +07:09:12.0 HIP 4859 18.83
2026-02-19 00:00 01:03:37.37 +07:09:23.0 HIP 5073 19.27
2026-02-19 12:00 01:03:39.04 +07:09:34.2 HIP 5073 18.95
2026-02-20 00:00 01:03:40.72 +07:09:45.4 HIP 5073 18.63
2026-02-20 12:00 01:03:42.42 +07:09:56.8 HIP 5073 18.31
2026-02-21 00:00 01:03:44.14 +07:10:08.2 HIP 5073 18.00
2026-02-21 12:00 01:03:45.87 +07:10:19.8 HIP 5073 17.69
2026-02-22 00:00 01:03:47.61 +07:10:31.4 HIP 5073 17.39
2026-02-22 12:00 01:03:49.37 +07:10:43.2 HIP 5073 17.09
2026-02-23 00:00 01:03:51.15 +07:10:55.0 HIP 5073 16.79
2026-02-23 12:00 01:03:52.94 +07:11:06.9 HIP 5073 16.51
2026-02-24 00:00 01:03:54.75 +07:11:18.9 HIP 5073 16.22