C/2004 Q1 (Tucker)
메타데이터
| 항목 |
값 |
| Designation |
C/2004 Q1 (Tucker) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2004-12-06T20:45:50.109120Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:42Z |
| Obs used |
1972 |
| NEO |
- |
| M1 |
9.600 |
| K1 |
8.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2004-12-11.0000000 |
| e |
0.98903967 |
| q (au) |
2.046725 |
| a (au) |
186.739317 |
| i (deg) |
56.087689 |
| Ω (om, deg) |
22.130171 |
| ω (w, deg) |
32.968497 |
| M (ma, deg) |
0.001597 |
밝기
산란 + 전체 선형
$$
M_a = (9.734 + 2.282\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.734 |
| n |
2.282 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
1.000 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2004-08-22 |
2004-12-06 |
+30.5056 |
-10.718 |
| 2004-12-06 |
2006-04-29 |
+3.6226 |
-2.377 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
13:34:02.05 |
-17:17:00.1 |
HIP 66231 |
7.05 |
| 2026-02-03 12:00 |
13:34:01.15 |
-17:17:02.7 |
HIP 66231 |
7.20 |
| 2026-02-04 00:00 |
13:34:00.22 |
-17:17:05.2 |
HIP 66231 |
7.37 |
| 2026-02-04 12:00 |
13:33:59.27 |
-17:17:07.5 |
HIP 66231 |
7.54 |
| 2026-02-05 00:00 |
13:33:58.30 |
-17:17:09.6 |
HIP 66231 |
7.72 |
| 2026-02-05 12:00 |
13:33:57.30 |
-17:17:11.6 |
HIP 66231 |
7.91 |
| 2026-02-06 00:00 |
13:33:56.28 |
-17:17:13.5 |
HIP 66231 |
8.11 |
| 2026-02-06 12:00 |
13:33:55.23 |
-17:17:15.2 |
HIP 66231 |
8.31 |
| 2026-02-07 00:00 |
13:33:54.16 |
-17:17:16.7 |
HIP 66231 |
8.53 |
| 2026-02-07 12:00 |
13:33:53.07 |
-17:17:18.1 |
HIP 66231 |
8.76 |
| 2026-02-08 00:00 |
13:33:51.95 |
-17:17:19.3 |
HIP 66231 |
8.99 |
| 2026-02-08 12:00 |
13:33:50.81 |
-17:17:20.4 |
HIP 66231 |
9.23 |
| 2026-02-09 00:00 |
13:33:49.64 |
-17:17:21.3 |
HIP 66231 |
9.48 |
| 2026-02-09 12:00 |
13:33:48.45 |
-17:17:22.1 |
HIP 66231 |
9.74 |
| 2026-02-10 00:00 |
13:33:47.24 |
-17:17:22.7 |
HIP 66231 |
10.00 |
| 2026-02-10 12:00 |
13:33:46.00 |
-17:17:23.2 |
HIP 66231 |
10.27 |
| 2026-02-11 00:00 |
13:33:44.74 |
-17:17:23.5 |
HIP 66231 |
10.55 |
| 2026-02-11 12:00 |
13:33:43.45 |
-17:17:23.7 |
HIP 66231 |
10.84 |
| 2026-02-12 00:00 |
13:33:42.14 |
-17:17:23.7 |
HIP 66231 |
11.13 |
| 2026-02-12 12:00 |
13:33:40.81 |
-17:17:23.6 |
HIP 66231 |
11.44 |
| 2026-02-13 00:00 |
13:33:39.46 |
-17:17:23.3 |
HIP 66231 |
11.74 |
| 2026-02-13 12:00 |
13:33:38.08 |
-17:17:22.9 |
HIP 66231 |
12.06 |
| 2026-02-14 00:00 |
13:33:36.68 |
-17:17:22.3 |
HIP 66231 |
12.38 |
| 2026-02-14 12:00 |
13:33:35.26 |
-17:17:21.6 |
HIP 66231 |
12.71 |
| 2026-02-15 00:00 |
13:33:33.81 |
-17:17:20.7 |
HIP 66231 |
13.04 |
| 2026-02-15 12:00 |
13:33:32.34 |
-17:17:19.6 |
HIP 66231 |
13.38 |
| 2026-02-16 00:00 |
13:33:30.85 |
-17:17:18.4 |
HIP 66231 |
13.73 |
| 2026-02-16 12:00 |
13:33:29.33 |
-17:17:17.1 |
HIP 66231 |
14.09 |
| 2026-02-17 00:00 |
13:33:27.80 |
-17:17:15.6 |
HIP 66231 |
14.45 |
| 2026-02-17 12:00 |
13:33:26.24 |
-17:17:13.9 |
HIP 66231 |
14.81 |
| 2026-02-18 00:00 |
13:33:24.66 |
-17:17:12.1 |
HIP 66231 |
15.18 |
| 2026-02-18 12:00 |
13:33:23.05 |
-17:17:10.2 |
HIP 66231 |
15.56 |
| 2026-02-19 00:00 |
13:33:21.43 |
-17:17:08.1 |
HIP 66231 |
15.95 |
| 2026-02-19 12:00 |
13:33:19.78 |
-17:17:05.8 |
HIP 66231 |
16.34 |
| 2026-02-20 00:00 |
13:33:18.12 |
-17:17:03.5 |
HIP 66231 |
16.73 |
| 2026-02-20 12:00 |
13:33:16.43 |
-17:17:00.9 |
HIP 66231 |
17.14 |
| 2026-02-21 00:00 |
13:33:14.72 |
-17:16:58.2 |
HIP 66231 |
17.54 |
| 2026-02-21 12:00 |
13:33:12.98 |
-17:16:55.4 |
HIP 66231 |
17.96 |
| 2026-02-22 00:00 |
13:33:11.23 |
-17:16:52.4 |
HIP 66231 |
18.37 |
| 2026-02-22 12:00 |
13:33:09.46 |
-17:16:49.3 |
HIP 66231 |
18.80 |
| 2026-02-23 00:00 |
13:33:07.67 |
-17:16:46.0 |
HIP 66231 |
19.23 |
| 2026-02-23 12:00 |
13:33:05.85 |
-17:16:42.5 |
HIP 66231 |
19.66 |
| 2026-02-24 00:00 |
13:33:04.02 |
-17:16:39.0 |
HIP 66231 |
20.10 |