메타데이터
| 항목 |
값 |
| Designation |
C/2006 F2 (Christensen) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2006-03-30T10:14:20.296320Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:56Z |
| Obs used |
60 |
| NEO |
- |
| M1 |
10.600 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2006-03-31.0000000 |
| e |
0.65137027 |
| q (au) |
4.296452 |
| a (au) |
12.323827 |
| i (deg) |
20.511217 |
| Ω (om, deg) |
8.260719 |
| ω (w, deg) |
181.011341 |
| M (ma, deg) |
0.013062 |
밝기
산란 + 전체 선형
$$
M_a = (13.117 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.117 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.982 |
| 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) |
| 2026-07-29 00:00 |
00:32:44.96 |
+02:53:30.1 |
HIP 2677 |
30.97 |
| 2026-07-29 12:00 |
00:32:43.06 |
+02:53:21.4 |
HIP 2677 |
31.36 |
| 2026-07-30 00:00 |
00:32:41.12 |
+02:53:12.5 |
HIP 2677 |
31.76 |
| 2026-07-30 12:00 |
00:32:39.13 |
+02:53:03.3 |
HIP 2677 |
32.17 |
| 2026-07-31 00:00 |
00:32:37.10 |
+02:52:53.9 |
HIP 2677 |
32.59 |
| 2026-07-31 12:00 |
00:32:35.03 |
+02:52:44.1 |
HIP 2677 |
33.03 |
| 2026-08-01 00:00 |
00:32:32.92 |
+02:52:34.2 |
HIP 2677 |
33.48 |
| 2026-08-01 12:00 |
00:32:30.77 |
+02:52:24.0 |
HIP 2677 |
33.94 |
| 2026-08-02 00:00 |
00:32:28.58 |
+02:52:13.5 |
HIP 2677 |
34.42 |
| 2026-08-02 12:00 |
00:32:26.34 |
+02:52:02.7 |
HIP 2677 |
34.91 |
| 2026-08-03 00:00 |
00:32:24.07 |
+02:51:51.8 |
HIP 2677 |
35.41 |
| 2026-08-03 12:00 |
00:32:21.75 |
+02:51:40.5 |
HIP 2677 |
35.92 |
| 2026-08-04 00:00 |
00:32:19.40 |
+02:51:29.0 |
HIP 2677 |
36.45 |
| 2026-08-04 12:00 |
00:32:17.00 |
+02:51:17.3 |
HIP 2398 |
36.17 |
| 2026-08-05 00:00 |
00:32:14.57 |
+02:51:05.3 |
HIP 2398 |
35.87 |
| 2026-08-05 12:00 |
00:32:12.09 |
+02:50:53.0 |
HIP 2398 |
35.57 |
| 2026-08-06 00:00 |
00:32:09.58 |
+02:50:40.5 |
HIP 2398 |
35.28 |
| 2026-08-06 12:00 |
00:32:07.02 |
+02:50:27.8 |
HIP 2398 |
35.00 |
| 2026-08-07 00:00 |
00:32:04.43 |
+02:50:14.8 |
HIP 2398 |
34.72 |
| 2026-08-07 12:00 |
00:32:01.80 |
+02:50:01.5 |
HIP 2398 |
34.45 |
| 2026-08-08 00:00 |
00:31:59.12 |
+02:49:48.1 |
HIP 2398 |
34.18 |
| 2026-08-08 12:00 |
00:31:56.41 |
+02:49:34.3 |
HIP 2398 |
33.93 |
| 2026-08-09 00:00 |
00:31:53.66 |
+02:49:20.4 |
HIP 2398 |
33.69 |
| 2026-08-09 12:00 |
00:31:50.87 |
+02:49:06.1 |
HIP 2398 |
33.46 |
| 2026-08-10 00:00 |
00:31:48.04 |
+02:48:51.7 |
HIP 2398 |
33.24 |
| 2026-08-10 12:00 |
00:31:45.18 |
+02:48:37.0 |
HIP 2398 |
33.04 |
| 2026-08-11 00:00 |
00:31:42.28 |
+02:48:22.1 |
HIP 2398 |
32.85 |
| 2026-08-11 12:00 |
00:31:39.33 |
+02:48:06.9 |
HIP 2398 |
32.67 |
| 2026-08-12 00:00 |
00:31:36.36 |
+02:47:51.5 |
HIP 2398 |
32.51 |
| 2026-08-12 12:00 |
00:31:33.34 |
+02:47:35.9 |
HIP 2331 |
32.00 |
| 2026-08-13 00:00 |
00:31:30.29 |
+02:47:20.0 |
HIP 2331 |
31.23 |
| 2026-08-13 12:00 |
00:31:27.20 |
+02:47:03.9 |
HIP 2331 |
30.45 |
| 2026-08-14 00:00 |
00:31:24.07 |
+02:46:47.6 |
HIP 2331 |
29.66 |
| 2026-08-14 12:00 |
00:31:20.91 |
+02:46:31.1 |
HIP 2331 |
28.86 |
| 2026-08-15 00:00 |
00:31:17.71 |
+02:46:14.3 |
HIP 2331 |
28.06 |
| 2026-08-15 12:00 |
00:31:14.48 |
+02:45:57.3 |
HIP 2331 |
27.25 |
| 2026-08-16 00:00 |
00:31:11.21 |
+02:45:40.1 |
HIP 2331 |
26.44 |
| 2026-08-16 12:00 |
00:31:07.90 |
+02:45:22.7 |
HIP 2331 |
25.62 |
| 2026-08-17 00:00 |
00:31:04.56 |
+02:45:05.0 |
HIP 2331 |
24.79 |
| 2026-08-17 12:00 |
00:31:01.19 |
+02:44:47.2 |
HIP 2331 |
23.96 |
| 2026-08-18 00:00 |
00:30:57.78 |
+02:44:29.1 |
HIP 2331 |
23.12 |
| 2026-08-18 12:00 |
00:30:54.34 |
+02:44:10.8 |
HIP 2331 |
22.29 |
| 2026-08-19 00:00 |
00:30:50.86 |
+02:43:52.3 |
HIP 2331 |
21.45 |