메타데이터
| 항목 |
값 |
| Designation |
C/2002 C2 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-04-10T19:34:33.844800Z |
| Orbit solution date (soln_date, UTC) |
2026-07-06T12:12:22Z |
| Obs used |
209 |
| NEO |
- |
| M1 |
9.300 |
| K1 |
10.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2002-05-24.0000000 |
| e |
0.99964080 |
| q (au) |
3.253749 |
| a (au) |
9058.244523 |
| i (deg) |
104.881330 |
| Ω (om, deg) |
242.956006 |
| ω (w, deg) |
159.933865 |
| M (ma, deg) |
0.000049 |
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 |
0.999 |
| gb |
-0.626 |
| k |
0.800 |
| δ90 |
9.999 |
| 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) |
| 2026-09-20 00:00 |
16:25:45.97 |
-71:31:49.0 |
HIP 80554 |
15.11 |
| 2026-09-20 12:00 |
16:25:48.73 |
-71:31:19.4 |
HIP 80554 |
15.51 |
| 2026-09-21 00:00 |
16:25:51.55 |
-71:30:50.0 |
HIP 80554 |
15.92 |
| 2026-09-21 12:00 |
16:25:54.44 |
-71:30:20.6 |
HIP 80554 |
16.32 |
| 2026-09-22 00:00 |
16:25:57.39 |
-71:29:51.5 |
HIP 80554 |
16.74 |
| 2026-09-22 12:00 |
16:26:00.40 |
-71:29:22.4 |
HIP 80554 |
17.15 |
| 2026-09-23 00:00 |
16:26:03.47 |
-71:28:53.5 |
HIP 80554 |
17.57 |
| 2026-09-23 12:00 |
16:26:06.61 |
-71:28:24.7 |
HIP 80554 |
17.99 |
| 2026-09-24 00:00 |
16:26:09.80 |
-71:27:56.1 |
HIP 80554 |
18.42 |
| 2026-09-24 12:00 |
16:26:13.06 |
-71:27:27.6 |
HIP 80554 |
18.85 |
| 2026-09-25 00:00 |
16:26:16.38 |
-71:26:59.2 |
HIP 80554 |
19.28 |
| 2026-09-25 12:00 |
16:26:19.76 |
-71:26:30.9 |
HIP 80554 |
19.71 |
| 2026-09-26 00:00 |
16:26:23.21 |
-71:26:02.9 |
HIP 80554 |
20.15 |
| 2026-09-26 12:00 |
16:26:26.71 |
-71:25:34.9 |
HIP 80554 |
20.59 |
| 2026-09-27 00:00 |
16:26:30.27 |
-71:25:07.1 |
HIP 80554 |
21.03 |
| 2026-09-27 12:00 |
16:26:33.89 |
-71:24:39.5 |
HIP 80554 |
21.47 |
| 2026-09-28 00:00 |
16:26:37.57 |
-71:24:12.0 |
HIP 80752 |
21.00 |
| 2026-09-28 12:00 |
16:26:41.31 |
-71:23:44.6 |
HIP 80752 |
20.46 |
| 2026-09-29 00:00 |
16:26:45.11 |
-71:23:17.4 |
HIP 80752 |
19.92 |
| 2026-09-29 12:00 |
16:26:48.96 |
-71:22:50.3 |
HIP 80752 |
19.37 |
| 2026-09-30 00:00 |
16:26:52.88 |
-71:22:23.4 |
HIP 80752 |
18.83 |
| 2026-09-30 12:00 |
16:26:56.85 |
-71:21:56.7 |
HIP 80752 |
18.28 |
| 2026-10-01 00:00 |
16:27:00.88 |
-71:21:30.1 |
HIP 80752 |
17.73 |
| 2026-10-01 12:00 |
16:27:04.97 |
-71:21:03.7 |
HIP 80752 |
17.18 |
| 2026-10-02 00:00 |
16:27:09.11 |
-71:20:37.4 |
HIP 80752 |
16.63 |
| 2026-10-02 12:00 |
16:27:13.31 |
-71:20:11.3 |
HIP 80752 |
16.08 |
| 2026-10-03 00:00 |
16:27:17.57 |
-71:19:45.4 |
HIP 80752 |
15.53 |
| 2026-10-03 12:00 |
16:27:21.88 |
-71:19:19.6 |
HIP 80752 |
14.98 |
| 2026-10-04 00:00 |
16:27:26.25 |
-71:18:54.0 |
HIP 80752 |
14.43 |
| 2026-10-04 12:00 |
16:27:30.67 |
-71:18:28.5 |
HIP 80752 |
13.88 |
| 2026-10-05 00:00 |
16:27:35.15 |
-71:18:03.2 |
HIP 80752 |
13.33 |
| 2026-10-05 12:00 |
16:27:39.69 |
-71:17:38.1 |
HIP 80752 |
12.77 |
| 2026-10-06 00:00 |
16:27:44.28 |
-71:17:13.2 |
HIP 80752 |
12.22 |
| 2026-10-06 12:00 |
16:27:48.92 |
-71:16:48.4 |
HIP 80752 |
11.67 |
| 2026-10-07 00:00 |
16:27:53.62 |
-71:16:23.9 |
HIP 80752 |
11.11 |
| 2026-10-07 12:00 |
16:27:58.37 |
-71:15:59.5 |
HIP 80752 |
10.56 |
| 2026-10-08 00:00 |
16:28:03.17 |
-71:15:35.2 |
HIP 80752 |
10.01 |
| 2026-10-08 12:00 |
16:28:08.03 |
-71:15:11.2 |
HIP 80752 |
9.45 |
| 2026-10-09 00:00 |
16:28:12.94 |
-71:14:47.3 |
HIP 80752 |
8.90 |
| 2026-10-09 12:00 |
16:28:17.90 |
-71:14:23.6 |
HIP 80752 |
8.35 |
| 2026-10-10 00:00 |
16:28:22.91 |
-71:14:00.1 |
HIP 80752 |
7.80 |
| 2026-10-10 12:00 |
16:28:27.98 |
-71:13:36.8 |
HIP 80752 |
7.26 |
| 2026-10-11 00:00 |
16:28:33.09 |
-71:13:13.7 |
HIP 80752 |
6.71 |