메타데이터
| 항목 |
값 |
| Designation |
C/2000 G2 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2000-02-06T05:07:48.432000Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:04Z |
| Obs used |
136 |
| NEO |
- |
| M1 |
12.800 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2000-04-19.0000000 |
| e |
0.80953903 |
| q (au) |
2.716942 |
| a (au) |
14.265084 |
| i (deg) |
170.479176 |
| Ω (om, deg) |
328.384926 |
| ω (w, deg) |
101.764704 |
| M (ma, deg) |
1.331502 |
밝기
산란 + 전체 선형
$$
M_a = (13.341 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.341 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.713 |
| 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) |
| 2026-09-20 00:00 |
03:11:51.73 |
+08:07:04.2 |
HIP 14842 |
2.40 |
| 2026-09-20 12:00 |
03:11:48.50 |
+08:06:41.7 |
HIP 14842 |
1.66 |
| 2026-09-21 00:00 |
03:11:45.23 |
+08:06:19.1 |
HIP 14842 |
1.13 |
| 2026-09-21 12:00 |
03:11:41.93 |
+08:05:56.5 |
HIP 14842 |
1.18 |
| 2026-09-22 00:00 |
03:11:38.60 |
+08:05:33.8 |
HIP 14842 |
1.78 |
| 2026-09-22 12:00 |
03:11:35.24 |
+08:05:11.0 |
HIP 14842 |
2.57 |
| 2026-09-23 00:00 |
03:11:31.85 |
+08:04:48.1 |
HIP 14842 |
3.43 |
| 2026-09-23 12:00 |
03:11:28.42 |
+08:04:25.2 |
HIP 14842 |
4.32 |
| 2026-09-24 00:00 |
03:11:24.96 |
+08:04:02.2 |
HIP 14842 |
5.23 |
| 2026-09-24 12:00 |
03:11:21.47 |
+08:03:39.1 |
HIP 14842 |
6.16 |
| 2026-09-25 00:00 |
03:11:17.94 |
+08:03:16.0 |
HIP 14842 |
7.10 |
| 2026-09-25 12:00 |
03:11:14.39 |
+08:02:52.7 |
HIP 14842 |
8.05 |
| 2026-09-26 00:00 |
03:11:10.80 |
+08:02:29.5 |
HIP 14842 |
9.01 |
| 2026-09-26 12:00 |
03:11:07.19 |
+08:02:06.1 |
HIP 14842 |
9.98 |
| 2026-09-27 00:00 |
03:11:03.54 |
+08:01:42.7 |
HIP 14842 |
10.96 |
| 2026-09-27 12:00 |
03:10:59.86 |
+08:01:19.3 |
HIP 14842 |
11.94 |
| 2026-09-28 00:00 |
03:10:56.15 |
+08:00:55.8 |
HIP 14842 |
12.94 |
| 2026-09-28 12:00 |
03:10:52.42 |
+08:00:32.2 |
HIP 14842 |
13.94 |
| 2026-09-29 00:00 |
03:10:48.65 |
+08:00:08.6 |
HIP 14842 |
14.95 |
| 2026-09-29 12:00 |
03:10:44.85 |
+07:59:44.9 |
HIP 14842 |
15.96 |
| 2026-09-30 00:00 |
03:10:41.02 |
+07:59:21.2 |
HIP 14842 |
16.98 |
| 2026-09-30 12:00 |
03:10:37.17 |
+07:58:57.4 |
HIP 14842 |
18.01 |
| 2026-10-01 00:00 |
03:10:33.28 |
+07:58:33.6 |
HIP 14842 |
19.05 |
| 2026-10-01 12:00 |
03:10:29.37 |
+07:58:09.7 |
HIP 14842 |
20.10 |
| 2026-10-02 00:00 |
03:10:25.42 |
+07:57:45.8 |
HIP 14842 |
21.15 |
| 2026-10-02 12:00 |
03:10:21.45 |
+07:57:21.8 |
HIP 14842 |
22.21 |
| 2026-10-03 00:00 |
03:10:17.45 |
+07:56:57.8 |
HIP 14842 |
23.27 |
| 2026-10-03 12:00 |
03:10:13.43 |
+07:56:33.7 |
HIP 14842 |
24.34 |
| 2026-10-04 00:00 |
03:10:09.37 |
+07:56:09.6 |
HIP 14842 |
25.42 |
| 2026-10-04 12:00 |
03:10:05.29 |
+07:55:45.5 |
HIP 14842 |
26.51 |
| 2026-10-05 00:00 |
03:10:01.18 |
+07:55:21.4 |
HIP 14842 |
27.60 |
| 2026-10-05 12:00 |
03:09:57.04 |
+07:54:57.2 |
HIP 14600 |
27.49 |
| 2026-10-06 00:00 |
03:09:52.88 |
+07:54:32.9 |
HIP 14600 |
26.42 |
| 2026-10-06 12:00 |
03:09:48.69 |
+07:54:08.7 |
HIP 14600 |
25.35 |
| 2026-10-07 00:00 |
03:09:44.48 |
+07:53:44.4 |
HIP 14600 |
24.28 |
| 2026-10-07 12:00 |
03:09:40.24 |
+07:53:20.1 |
HIP 14600 |
23.21 |
| 2026-10-08 00:00 |
03:09:35.97 |
+07:52:55.8 |
HIP 14600 |
22.14 |
| 2026-10-08 12:00 |
03:09:31.68 |
+07:52:31.4 |
HIP 14600 |
21.07 |
| 2026-10-09 00:00 |
03:09:27.37 |
+07:52:07.0 |
HIP 14600 |
20.00 |
| 2026-10-09 12:00 |
03:09:23.03 |
+07:51:42.6 |
HIP 14600 |
18.94 |
| 2026-10-10 00:00 |
03:09:18.66 |
+07:51:18.2 |
HIP 14600 |
17.89 |
| 2026-10-10 12:00 |
03:09:14.27 |
+07:50:53.8 |
HIP 14600 |
16.84 |
| 2026-10-11 00:00 |
03:09:09.86 |
+07:50:29.4 |
HIP 14600 |
15.80 |