C/2002 C2 (LINEAR)
메타데이터
| 항목 |
값 |
| Designation |
C/2002 C2 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-04-10T19:34:16.780800Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:14Z |
| Obs used |
206 |
| NEO |
- |
| M1 |
10.200 |
| K1 |
8.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2002-05-23.0000000 |
| e |
0.99964080 |
| q (au) |
3.253749 |
| a (au) |
9058.346432 |
| i (deg) |
104.881376 |
| Ω (om, deg) |
242.955998 |
| ω (w, deg) |
159.933817 |
| M (ma, deg) |
0.000048 |
밝기
산란 + 전체 선형
$$
M_a = (8.703 + 5.569\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.703 |
| n |
5.569 |
| gf |
1.000 |
| gb |
-0.626 |
| 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 |
16:56:44.29 |
-71:49:21.5 |
HIP 82657 |
21.58 |
| 2026-02-03 12:00 |
16:56:48.73 |
-71:49:47.2 |
HIP 82657 |
21.47 |
| 2026-02-04 00:00 |
16:56:53.11 |
-71:50:13.0 |
HIP 82657 |
21.36 |
| 2026-02-04 12:00 |
16:56:57.43 |
-71:50:38.9 |
HIP 82657 |
21.27 |
| 2026-02-05 00:00 |
16:57:01.69 |
-71:51:05.0 |
HIP 82657 |
21.18 |
| 2026-02-05 12:00 |
16:57:05.89 |
-71:51:31.1 |
HIP 82657 |
21.10 |
| 2026-02-06 00:00 |
16:57:10.02 |
-71:51:57.4 |
HIP 82657 |
21.03 |
| 2026-02-06 12:00 |
16:57:14.09 |
-71:52:23.7 |
HIP 82657 |
20.97 |
| 2026-02-07 00:00 |
16:57:18.09 |
-71:52:50.2 |
HIP 82657 |
20.92 |
| 2026-02-07 12:00 |
16:57:22.04 |
-71:53:16.8 |
HIP 82657 |
20.87 |
| 2026-02-08 00:00 |
16:57:25.92 |
-71:53:43.4 |
HIP 82657 |
20.84 |
| 2026-02-08 12:00 |
16:57:29.73 |
-71:54:10.2 |
HIP 82657 |
20.81 |
| 2026-02-09 00:00 |
16:57:33.48 |
-71:54:37.1 |
HIP 82657 |
20.79 |
| 2026-02-09 12:00 |
16:57:37.17 |
-71:55:04.0 |
HIP 82657 |
20.78 |
| 2026-02-10 00:00 |
16:57:40.78 |
-71:55:31.1 |
HIP 82657 |
20.78 |
| 2026-02-10 12:00 |
16:57:44.34 |
-71:55:58.3 |
HIP 82657 |
20.79 |
| 2026-02-11 00:00 |
16:57:47.82 |
-71:56:25.5 |
HIP 82657 |
20.80 |
| 2026-02-11 12:00 |
16:57:51.24 |
-71:56:52.8 |
HIP 82657 |
20.83 |
| 2026-02-12 00:00 |
16:57:54.60 |
-71:57:20.2 |
HIP 83349 |
20.57 |
| 2026-02-12 12:00 |
16:57:57.88 |
-71:57:47.7 |
HIP 83349 |
20.17 |
| 2026-02-13 00:00 |
16:58:01.10 |
-71:58:15.3 |
HIP 83349 |
19.77 |
| 2026-02-13 12:00 |
16:58:04.25 |
-71:58:43.0 |
HIP 83349 |
19.39 |
| 2026-02-14 00:00 |
16:58:07.33 |
-71:59:10.7 |
HIP 83349 |
19.02 |
| 2026-02-14 12:00 |
16:58:10.34 |
-71:59:38.5 |
HIP 83349 |
18.66 |
| 2026-02-15 00:00 |
16:58:13.29 |
-72:00:06.4 |
HIP 83349 |
18.32 |
| 2026-02-15 12:00 |
16:58:16.16 |
-72:00:34.4 |
HIP 83349 |
17.98 |
| 2026-02-16 00:00 |
16:58:18.96 |
-72:01:02.4 |
HIP 83349 |
17.67 |
| 2026-02-16 12:00 |
16:58:21.70 |
-72:01:30.5 |
HIP 83349 |
17.36 |
| 2026-02-17 00:00 |
16:58:24.36 |
-72:01:58.6 |
HIP 83349 |
17.07 |
| 2026-02-17 12:00 |
16:58:26.95 |
-72:02:26.9 |
HIP 83349 |
16.80 |
| 2026-02-18 00:00 |
16:58:29.47 |
-72:02:55.1 |
HIP 83349 |
16.55 |
| 2026-02-18 12:00 |
16:58:31.92 |
-72:03:23.5 |
HIP 83349 |
16.31 |
| 2026-02-19 00:00 |
16:58:34.30 |
-72:03:51.9 |
HIP 83349 |
16.09 |
| 2026-02-19 12:00 |
16:58:36.60 |
-72:04:20.3 |
HIP 83349 |
15.89 |
| 2026-02-20 00:00 |
16:58:38.83 |
-72:04:48.8 |
HIP 83349 |
15.71 |
| 2026-02-20 12:00 |
16:58:40.99 |
-72:05:17.4 |
HIP 83349 |
15.54 |
| 2026-02-21 00:00 |
16:58:43.08 |
-72:05:45.9 |
HIP 83349 |
15.40 |
| 2026-02-21 12:00 |
16:58:45.09 |
-72:06:14.6 |
HIP 83349 |
15.28 |
| 2026-02-22 00:00 |
16:58:47.04 |
-72:06:43.3 |
HIP 83349 |
15.19 |
| 2026-02-22 12:00 |
16:58:48.90 |
-72:07:12.0 |
HIP 83349 |
15.11 |
| 2026-02-23 00:00 |
16:58:50.70 |
-72:07:40.7 |
HIP 83349 |
15.05 |
| 2026-02-23 12:00 |
16:58:52.42 |
-72:08:09.5 |
HIP 83349 |
15.02 |
| 2026-02-24 00:00 |
16:58:54.06 |
-72:08:38.3 |
HIP 83349 |
15.01 |