C/2006 XA1 (LINEAR)
메타데이터
| 항목 |
값 |
| Designation |
C/2006 XA1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2007-07-21T21:31:41.396160Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:03Z |
| Obs used |
486 |
| NEO |
- |
| M1 |
7.400 |
| K1 |
17.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2007-03-16.0000000 |
| e |
0.99283774 |
| q (au) |
1.804376 |
| a (au) |
251.928275 |
| i (deg) |
30.629404 |
| Ω (om, deg) |
318.663524 |
| ω (w, deg) |
187.418049 |
| M (ma, deg) |
359.968475 |
밝기
산란 + 전체 선형
$$
M_a = (9.115 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.115 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.883 |
| k |
0.800 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
20:34:32.29 |
-27:21:01.4 |
HIP 101546 |
7.68 |
| 2026-02-03 12:00 |
20:34:35.84 |
-27:20:49.1 |
HIP 101546 |
7.23 |
| 2026-02-04 00:00 |
20:34:39.38 |
-27:20:36.9 |
HIP 101546 |
6.85 |
| 2026-02-04 12:00 |
20:34:42.92 |
-27:20:24.8 |
HIP 101546 |
6.54 |
| 2026-02-05 00:00 |
20:34:46.45 |
-27:20:12.7 |
HIP 101546 |
6.33 |
| 2026-02-05 12:00 |
20:34:49.98 |
-27:20:00.8 |
HIP 101546 |
6.22 |
| 2026-02-06 00:00 |
20:34:53.51 |
-27:19:48.8 |
HIP 101546 |
6.22 |
| 2026-02-06 12:00 |
20:34:57.02 |
-27:19:37.0 |
HIP 101546 |
6.31 |
| 2026-02-07 00:00 |
20:35:00.54 |
-27:19:25.2 |
HIP 101600 |
6.39 |
| 2026-02-07 12:00 |
20:35:04.04 |
-27:19:13.6 |
HIP 101600 |
5.71 |
| 2026-02-08 00:00 |
20:35:07.54 |
-27:19:02.0 |
HIP 101600 |
5.06 |
| 2026-02-08 12:00 |
20:35:11.03 |
-27:18:50.4 |
HIP 101600 |
4.46 |
| 2026-02-09 00:00 |
20:35:14.52 |
-27:18:39.0 |
HIP 101600 |
3.94 |
| 2026-02-09 12:00 |
20:35:18.00 |
-27:18:27.6 |
HIP 101600 |
3.52 |
| 2026-02-10 00:00 |
20:35:21.47 |
-27:18:16.3 |
HIP 101600 |
3.24 |
| 2026-02-10 12:00 |
20:35:24.94 |
-27:18:05.1 |
HIP 101600 |
3.15 |
| 2026-02-11 00:00 |
20:35:28.39 |
-27:17:53.9 |
HIP 101600 |
3.25 |
| 2026-02-11 12:00 |
20:35:31.84 |
-27:17:42.9 |
HIP 101600 |
3.53 |
| 2026-02-12 00:00 |
20:35:35.28 |
-27:17:31.9 |
HIP 101600 |
3.94 |
| 2026-02-12 12:00 |
20:35:38.71 |
-27:17:21.0 |
HIP 101600 |
4.46 |
| 2026-02-13 00:00 |
20:35:42.14 |
-27:17:10.2 |
HIP 101600 |
5.04 |
| 2026-02-13 12:00 |
20:35:45.55 |
-27:16:59.4 |
HIP 101600 |
5.66 |
| 2026-02-14 00:00 |
20:35:48.96 |
-27:16:48.8 |
HIP 101600 |
6.32 |
| 2026-02-14 12:00 |
20:35:52.36 |
-27:16:38.2 |
HIP 101600 |
7.00 |
| 2026-02-15 00:00 |
20:35:55.74 |
-27:16:27.7 |
HIP 101600 |
7.70 |
| 2026-02-15 12:00 |
20:35:59.12 |
-27:16:17.4 |
HIP 101600 |
8.41 |
| 2026-02-16 00:00 |
20:36:02.49 |
-27:16:07.1 |
HIP 101600 |
9.12 |
| 2026-02-16 12:00 |
20:36:05.84 |
-27:15:56.8 |
HIP 101600 |
9.84 |
| 2026-02-17 00:00 |
20:36:09.19 |
-27:15:46.7 |
HIP 101600 |
10.56 |
| 2026-02-17 12:00 |
20:36:12.52 |
-27:15:36.7 |
HIP 101600 |
11.29 |
| 2026-02-18 00:00 |
20:36:15.85 |
-27:15:26.8 |
HIP 101600 |
12.02 |
| 2026-02-18 12:00 |
20:36:19.16 |
-27:15:16.9 |
HIP 101600 |
12.74 |
| 2026-02-19 00:00 |
20:36:22.46 |
-27:15:07.1 |
HIP 101600 |
13.47 |
| 2026-02-19 12:00 |
20:36:25.75 |
-27:14:57.5 |
HIP 101600 |
14.20 |
| 2026-02-20 00:00 |
20:36:29.03 |
-27:14:47.9 |
HIP 101600 |
14.92 |
| 2026-02-20 12:00 |
20:36:32.29 |
-27:14:38.4 |
HIP 101600 |
15.65 |
| 2026-02-21 00:00 |
20:36:35.54 |
-27:14:29.0 |
HIP 101600 |
16.37 |
| 2026-02-21 12:00 |
20:36:38.78 |
-27:14:19.7 |
HIP 101600 |
17.09 |
| 2026-02-22 00:00 |
20:36:42.01 |
-27:14:10.5 |
HIP 101600 |
17.81 |
| 2026-02-22 12:00 |
20:36:45.22 |
-27:14:01.4 |
HIP 101600 |
18.53 |
| 2026-02-23 00:00 |
20:36:48.42 |
-27:13:52.4 |
HIP 101600 |
19.24 |
| 2026-02-23 12:00 |
20:36:51.61 |
-27:13:43.5 |
HIP 101600 |
19.96 |
| 2026-02-24 00:00 |
20:36:54.78 |
-27:13:34.7 |
HIP 101600 |
20.67 |