C/2005 O2 (Christensen)
메타데이터
| 항목 |
값 |
| Designation |
C/2005 O2 (Christensen) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2005-09-08T10:41:22.672320Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:51Z |
| Obs used |
126 |
| NEO |
- |
| M1 |
5.200 |
| K1 |
20.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2005-09-25.0000000 |
| e |
0.85937661 |
| q (au) |
3.333576 |
| a (au) |
23.705702 |
| i (deg) |
148.892051 |
| Ω (om, deg) |
280.771395 |
| ω (w, deg) |
263.833891 |
| M (ma, deg) |
0.141366 |
밝기
산란 + 전체 선형
$$
M_a = (7.164 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.164 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
15:18:54.71 |
+09:55:29.0 |
HIP 75009 |
11.47 |
| 2026-02-03 12:00 |
15:18:55.00 |
+09:55:57.3 |
HIP 75009 |
11.58 |
| 2026-02-04 00:00 |
15:18:55.26 |
+09:56:25.8 |
HIP 75009 |
11.72 |
| 2026-02-04 12:00 |
15:18:55.49 |
+09:56:54.4 |
HIP 75009 |
11.89 |
| 2026-02-05 00:00 |
15:18:55.68 |
+09:57:23.2 |
HIP 75009 |
12.08 |
| 2026-02-05 12:00 |
15:18:55.84 |
+09:57:52.2 |
HIP 75009 |
12.30 |
| 2026-02-06 00:00 |
15:18:55.96 |
+09:58:21.3 |
HIP 75009 |
12.54 |
| 2026-02-06 12:00 |
15:18:56.05 |
+09:58:50.5 |
HIP 75009 |
12.80 |
| 2026-02-07 00:00 |
15:18:56.11 |
+09:59:20.0 |
HIP 75009 |
13.08 |
| 2026-02-07 12:00 |
15:18:56.13 |
+09:59:49.5 |
HIP 75009 |
13.39 |
| 2026-02-08 00:00 |
15:18:56.13 |
+10:00:19.2 |
HIP 75009 |
13.71 |
| 2026-02-08 12:00 |
15:18:56.08 |
+10:00:49.1 |
HIP 75009 |
14.05 |
| 2026-02-09 00:00 |
15:18:56.01 |
+10:01:19.1 |
HIP 75009 |
14.41 |
| 2026-02-09 12:00 |
15:18:55.89 |
+10:01:49.2 |
HIP 75009 |
14.78 |
| 2026-02-10 00:00 |
15:18:55.75 |
+10:02:19.5 |
HIP 75009 |
15.17 |
| 2026-02-10 12:00 |
15:18:55.57 |
+10:02:49.9 |
HIP 75009 |
15.57 |
| 2026-02-11 00:00 |
15:18:55.36 |
+10:03:20.5 |
HIP 75009 |
15.98 |
| 2026-02-11 12:00 |
15:18:55.11 |
+10:03:51.2 |
HIP 75009 |
16.41 |
| 2026-02-12 00:00 |
15:18:54.83 |
+10:04:22.0 |
HIP 75009 |
16.85 |
| 2026-02-12 12:00 |
15:18:54.52 |
+10:04:52.9 |
HIP 75009 |
17.30 |
| 2026-02-13 00:00 |
15:18:54.17 |
+10:05:24.0 |
HIP 75009 |
17.76 |
| 2026-02-13 12:00 |
15:18:53.79 |
+10:05:55.2 |
HIP 75009 |
18.23 |
| 2026-02-14 00:00 |
15:18:53.37 |
+10:06:26.5 |
HIP 75009 |
18.71 |
| 2026-02-14 12:00 |
15:18:52.92 |
+10:06:57.9 |
HIP 74931 |
18.67 |
| 2026-02-15 00:00 |
15:18:52.44 |
+10:07:29.5 |
HIP 74931 |
18.13 |
| 2026-02-15 12:00 |
15:18:51.92 |
+10:08:01.2 |
HIP 74931 |
17.59 |
| 2026-02-16 00:00 |
15:18:51.37 |
+10:08:32.9 |
HIP 74931 |
17.05 |
| 2026-02-16 12:00 |
15:18:50.78 |
+10:09:04.8 |
HIP 74931 |
16.50 |
| 2026-02-17 00:00 |
15:18:50.16 |
+10:09:36.8 |
HIP 74931 |
15.95 |
| 2026-02-17 12:00 |
15:18:49.51 |
+10:10:08.9 |
HIP 74931 |
15.40 |
| 2026-02-18 00:00 |
15:18:48.82 |
+10:10:41.1 |
HIP 74931 |
14.85 |
| 2026-02-18 12:00 |
15:18:48.09 |
+10:11:13.4 |
HIP 74931 |
14.29 |
| 2026-02-19 00:00 |
15:18:47.34 |
+10:11:45.8 |
HIP 74931 |
13.74 |
| 2026-02-19 12:00 |
15:18:46.55 |
+10:12:18.3 |
HIP 74931 |
13.18 |
| 2026-02-20 00:00 |
15:18:45.72 |
+10:12:50.9 |
HIP 74931 |
12.63 |
| 2026-02-20 12:00 |
15:18:44.86 |
+10:13:23.6 |
HIP 74931 |
12.07 |
| 2026-02-21 00:00 |
15:18:43.97 |
+10:13:56.4 |
HIP 74931 |
11.51 |
| 2026-02-21 12:00 |
15:18:43.04 |
+10:14:29.2 |
HIP 74931 |
10.96 |
| 2026-02-22 00:00 |
15:18:42.08 |
+10:15:02.2 |
HIP 74931 |
10.41 |
| 2026-02-22 12:00 |
15:18:41.09 |
+10:15:35.2 |
HIP 74931 |
9.86 |
| 2026-02-23 00:00 |
15:18:40.06 |
+10:16:08.3 |
HIP 74931 |
9.32 |
| 2026-02-23 12:00 |
15:18:39.00 |
+10:16:41.5 |
HIP 74931 |
8.79 |
| 2026-02-24 00:00 |
15:18:37.90 |
+10:17:14.7 |
HIP 74931 |
8.27 |