메타데이터
| 항목 |
값 |
| Designation |
C/2004 L1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2005-03-30T02:35:39.649920Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:41Z |
| Obs used |
410 |
| NEO |
- |
| M1 |
12.600 |
| K1 |
7.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2005-01-20.0000000 |
| e |
0.99761858 |
| q (au) |
2.047414 |
| a (au) |
859.745847 |
| i (deg) |
159.360856 |
| Ω (om, deg) |
66.174158 |
| ω (w, deg) |
243.579121 |
| M (ma, deg) |
359.997298 |
밝기
산란 + 전체 선형
$$
M_a = (12.410 + 2.328\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.410 |
| n |
2.328 |
| gf |
0.971 |
| gb |
-0.915 |
| k |
1.000 |
| δ90 |
9.377 |
| 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 |
01:36:47.87 |
+23:17:50.6 |
HIP 7570 |
18.80 |
| 2026-06-01 12:00 |
01:36:49.76 |
+23:18:07.7 |
HIP 7570 |
18.81 |
| 2026-06-02 00:00 |
01:36:51.63 |
+23:18:24.9 |
HIP 7570 |
18.85 |
| 2026-06-02 12:00 |
01:36:53.49 |
+23:18:42.0 |
HIP 7570 |
18.89 |
| 2026-06-03 00:00 |
01:36:55.33 |
+23:18:59.1 |
HIP 7570 |
18.95 |
| 2026-06-03 12:00 |
01:36:57.15 |
+23:19:16.1 |
HIP 7570 |
19.03 |
| 2026-06-04 00:00 |
01:36:58.96 |
+23:19:33.2 |
HIP 7570 |
19.12 |
| 2026-06-04 12:00 |
01:37:00.75 |
+23:19:50.1 |
HIP 7570 |
19.23 |
| 2026-06-05 00:00 |
01:37:02.52 |
+23:20:07.1 |
HIP 7570 |
19.34 |
| 2026-06-05 12:00 |
01:37:04.27 |
+23:20:24.0 |
HIP 7570 |
19.47 |
| 2026-06-06 00:00 |
01:37:06.01 |
+23:20:40.9 |
HIP 7570 |
19.62 |
| 2026-06-06 12:00 |
01:37:07.73 |
+23:20:57.7 |
HIP 7570 |
19.77 |
| 2026-06-07 00:00 |
01:37:09.43 |
+23:21:14.5 |
HIP 7570 |
19.93 |
| 2026-06-07 12:00 |
01:37:11.12 |
+23:21:31.3 |
HIP 7570 |
20.11 |
| 2026-06-08 00:00 |
01:37:12.78 |
+23:21:48.0 |
HIP 7570 |
20.29 |
| 2026-06-08 12:00 |
01:37:14.43 |
+23:22:04.7 |
HIP 7570 |
20.49 |
| 2026-06-09 00:00 |
01:37:16.06 |
+23:22:21.3 |
HIP 7570 |
20.69 |
| 2026-06-09 12:00 |
01:37:17.67 |
+23:22:37.9 |
HIP 7570 |
20.90 |
| 2026-06-10 00:00 |
01:37:19.26 |
+23:22:54.4 |
HIP 7570 |
21.12 |
| 2026-06-10 12:00 |
01:37:20.84 |
+23:23:10.9 |
HIP 7570 |
21.35 |
| 2026-06-11 00:00 |
01:37:22.39 |
+23:23:27.4 |
HIP 7570 |
21.58 |
| 2026-06-11 12:00 |
01:37:23.93 |
+23:23:43.8 |
HIP 7570 |
21.82 |
| 2026-06-12 00:00 |
01:37:25.45 |
+23:24:00.1 |
HIP 7570 |
22.07 |
| 2026-06-12 12:00 |
01:37:26.94 |
+23:24:16.4 |
HIP 7570 |
22.32 |
| 2026-06-13 00:00 |
01:37:28.42 |
+23:24:32.7 |
HIP 7570 |
22.58 |
| 2026-06-13 12:00 |
01:37:29.88 |
+23:24:48.8 |
HIP 7570 |
22.84 |
| 2026-06-14 00:00 |
01:37:31.32 |
+23:25:05.0 |
HIP 7570 |
23.10 |
| 2026-06-14 12:00 |
01:37:32.74 |
+23:25:21.0 |
HIP 7570 |
23.37 |
| 2026-06-15 00:00 |
01:37:34.14 |
+23:25:37.1 |
HIP 7570 |
23.64 |
| 2026-06-15 12:00 |
01:37:35.52 |
+23:25:53.0 |
HIP 7570 |
23.92 |
| 2026-06-16 00:00 |
01:37:36.88 |
+23:26:08.9 |
HIP 7570 |
24.20 |
| 2026-06-16 12:00 |
01:37:38.22 |
+23:26:24.7 |
HIP 7570 |
24.48 |
| 2026-06-17 00:00 |
01:37:39.54 |
+23:26:40.5 |
HIP 7570 |
24.76 |
| 2026-06-17 12:00 |
01:37:40.84 |
+23:26:56.2 |
HIP 7570 |
25.04 |
| 2026-06-18 00:00 |
01:37:42.12 |
+23:27:11.9 |
HIP 7570 |
25.33 |
| 2026-06-18 12:00 |
01:37:43.37 |
+23:27:27.4 |
HIP 7570 |
25.62 |
| 2026-06-19 00:00 |
01:37:44.61 |
+23:27:43.0 |
HIP 7570 |
25.91 |
| 2026-06-19 12:00 |
01:37:45.82 |
+23:27:58.4 |
HIP 7570 |
26.19 |
| 2026-06-20 00:00 |
01:37:47.02 |
+23:28:13.8 |
HIP 7570 |
26.48 |
| 2026-06-20 12:00 |
01:37:48.19 |
+23:28:29.1 |
HIP 7570 |
26.77 |
| 2026-06-21 00:00 |
01:37:49.35 |
+23:28:44.3 |
HIP 7570 |
27.06 |
| 2026-06-21 12:00 |
01:37:50.48 |
+23:28:59.5 |
HIP 7570 |
27.35 |
| 2026-06-22 00:00 |
01:37:51.59 |
+23:29:14.6 |
HIP 7570 |
27.64 |