메타데이터
| 항목 |
값 |
| Designation |
C/2005 G1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2006-02-27T06:21:42.981120Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:48Z |
| Obs used |
287 |
| NEO |
- |
| M1 |
7.500 |
| K1 |
10.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2005-08-17.0000000 |
| e |
0.99973621 |
| q (au) |
4.960798 |
| a (au) |
18805.663709 |
| i (deg) |
108.413949 |
| Ω (om, deg) |
299.589019 |
| ω (w, deg) |
113.810280 |
| M (ma, deg) |
359.999926 |
밝기
산란 + 전체 선형
$$
M_a = (4.167 + 5.406\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
4.167 |
| n |
5.406 |
| gf |
0.997 |
| 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) |
| 2026-09-20 00:00 |
05:37:03.75 |
-40:59:16.7 |
HIP 26465 |
13.39 |
| 2026-09-20 12:00 |
05:37:03.29 |
-41:00:01.9 |
HIP 26465 |
12.86 |
| 2026-09-21 00:00 |
05:37:02.79 |
-41:00:47.0 |
HIP 26465 |
12.37 |
| 2026-09-21 12:00 |
05:37:02.26 |
-41:01:32.2 |
HIP 26465 |
11.90 |
| 2026-09-22 00:00 |
05:37:01.70 |
-41:02:17.4 |
HIP 26465 |
11.47 |
| 2026-09-22 12:00 |
05:37:01.10 |
-41:03:02.5 |
HIP 26465 |
11.08 |
| 2026-09-23 00:00 |
05:37:00.46 |
-41:03:47.6 |
HIP 26465 |
10.74 |
| 2026-09-23 12:00 |
05:36:59.79 |
-41:04:32.7 |
HIP 26465 |
10.45 |
| 2026-09-24 00:00 |
05:36:59.08 |
-41:05:17.8 |
HIP 26465 |
10.21 |
| 2026-09-24 12:00 |
05:36:58.34 |
-41:06:02.8 |
HIP 26465 |
10.03 |
| 2026-09-25 00:00 |
05:36:57.56 |
-41:06:47.8 |
HIP 26465 |
9.92 |
| 2026-09-25 12:00 |
05:36:56.75 |
-41:07:32.8 |
HIP 26465 |
9.87 |
| 2026-09-26 00:00 |
05:36:55.90 |
-41:08:17.7 |
HIP 26465 |
9.88 |
| 2026-09-26 12:00 |
05:36:55.01 |
-41:09:02.7 |
HIP 26465 |
9.96 |
| 2026-09-27 00:00 |
05:36:54.09 |
-41:09:47.5 |
HIP 26465 |
10.10 |
| 2026-09-27 12:00 |
05:36:53.14 |
-41:10:32.3 |
HIP 26465 |
10.31 |
| 2026-09-28 00:00 |
05:36:52.15 |
-41:11:17.1 |
HIP 26465 |
10.58 |
| 2026-09-28 12:00 |
05:36:51.12 |
-41:12:01.8 |
HIP 26465 |
10.89 |
| 2026-09-29 00:00 |
05:36:50.06 |
-41:12:46.5 |
HIP 26465 |
11.26 |
| 2026-09-29 12:00 |
05:36:48.97 |
-41:13:31.1 |
HIP 26465 |
11.68 |
| 2026-09-30 00:00 |
05:36:47.83 |
-41:14:15.7 |
HIP 26465 |
12.13 |
| 2026-09-30 12:00 |
05:36:46.67 |
-41:15:00.1 |
HIP 26465 |
12.62 |
| 2026-10-01 00:00 |
05:36:45.46 |
-41:15:44.6 |
HIP 26465 |
13.15 |
| 2026-10-01 12:00 |
05:36:44.23 |
-41:16:28.9 |
HIP 26465 |
13.70 |
| 2026-10-02 00:00 |
05:36:42.95 |
-41:17:13.2 |
HIP 26465 |
14.28 |
| 2026-10-02 12:00 |
05:36:41.65 |
-41:17:57.4 |
HIP 26465 |
14.88 |
| 2026-10-03 00:00 |
05:36:40.30 |
-41:18:41.5 |
HIP 26465 |
15.50 |
| 2026-10-03 12:00 |
05:36:38.92 |
-41:19:25.6 |
HIP 26465 |
16.14 |
| 2026-10-04 00:00 |
05:36:37.51 |
-41:20:09.6 |
HIP 26465 |
16.79 |
| 2026-10-04 12:00 |
05:36:36.06 |
-41:20:53.4 |
HIP 26465 |
17.46 |
| 2026-10-05 00:00 |
05:36:34.57 |
-41:21:37.2 |
HIP 26465 |
18.15 |
| 2026-10-05 12:00 |
05:36:33.06 |
-41:22:20.9 |
HIP 26465 |
18.84 |
| 2026-10-06 00:00 |
05:36:31.50 |
-41:23:04.5 |
HIP 26465 |
19.54 |
| 2026-10-06 12:00 |
05:36:29.91 |
-41:23:48.0 |
HIP 26465 |
20.26 |
| 2026-10-07 00:00 |
05:36:28.29 |
-41:24:31.4 |
HIP 26465 |
20.98 |
| 2026-10-07 12:00 |
05:36:26.63 |
-41:25:14.7 |
HIP 26465 |
21.71 |
| 2026-10-08 00:00 |
05:36:24.93 |
-41:25:57.8 |
HIP 26465 |
22.45 |
| 2026-10-08 12:00 |
05:36:23.20 |
-41:26:40.9 |
HIP 26496 |
23.06 |
| 2026-10-09 00:00 |
05:36:21.44 |
-41:27:23.8 |
HIP 26496 |
22.96 |
| 2026-10-09 12:00 |
05:36:19.64 |
-41:28:06.6 |
HIP 26496 |
22.90 |
| 2026-10-10 00:00 |
05:36:17.81 |
-41:28:49.3 |
HIP 26496 |
22.88 |
| 2026-10-10 12:00 |
05:36:15.94 |
-41:29:31.9 |
HIP 26496 |
22.88 |
| 2026-10-11 00:00 |
05:36:14.04 |
-41:30:14.3 |
HIP 26496 |
22.92 |