메타데이터
| 항목 |
값 |
| Designation |
C/2008 G1 (Gibbs) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2009-01-11T23:47:18.816000Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:17Z |
| Obs used |
166 |
| NEO |
- |
| M1 |
13.400 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2008-05-08.0000000 |
| e |
0.98907227 |
| q (au) |
3.989818 |
| a (au) |
365.109434 |
| i (deg) |
72.856095 |
| Ω (om, deg) |
215.916428 |
| ω (w, deg) |
63.704008 |
| M (ma, deg) |
359.964823 |
밝기
산란 + 전체 선형
$$
M_a = (5.575 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.575 |
| n |
6.000 |
| gf |
0.982 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
9.917 |
| 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 |
03:17:55.98 |
-06:47:32.7 |
HIP 15396 |
22.37 |
| 2026-09-20 12:00 |
03:17:54.13 |
-06:48:01.6 |
HIP 15396 |
22.09 |
| 2026-09-21 00:00 |
03:17:52.25 |
-06:48:30.4 |
HIP 15396 |
21.84 |
| 2026-09-21 12:00 |
03:17:50.34 |
-06:48:59.3 |
HIP 15396 |
21.61 |
| 2026-09-22 00:00 |
03:17:48.41 |
-06:49:28.1 |
HIP 15396 |
21.40 |
| 2026-09-22 12:00 |
03:17:46.46 |
-06:49:56.9 |
HIP 15396 |
21.21 |
| 2026-09-23 00:00 |
03:17:44.48 |
-06:50:25.6 |
HIP 15396 |
21.05 |
| 2026-09-23 12:00 |
03:17:42.48 |
-06:50:54.3 |
HIP 15396 |
20.91 |
| 2026-09-24 00:00 |
03:17:40.45 |
-06:51:23.0 |
HIP 15396 |
20.80 |
| 2026-09-24 12:00 |
03:17:38.41 |
-06:51:51.7 |
HIP 15396 |
20.72 |
| 2026-09-25 00:00 |
03:17:36.34 |
-06:52:20.3 |
HIP 15396 |
20.66 |
| 2026-09-25 12:00 |
03:17:34.24 |
-06:52:48.9 |
HIP 15396 |
20.63 |
| 2026-09-26 00:00 |
03:17:32.13 |
-06:53:17.5 |
HIP 15396 |
20.62 |
| 2026-09-26 12:00 |
03:17:29.99 |
-06:53:46.0 |
HIP 15396 |
20.65 |
| 2026-09-27 00:00 |
03:17:27.83 |
-06:54:14.5 |
HIP 15396 |
20.71 |
| 2026-09-27 12:00 |
03:17:25.64 |
-06:54:42.9 |
HIP 15396 |
20.79 |
| 2026-09-28 00:00 |
03:17:23.44 |
-06:55:11.3 |
HIP 15396 |
20.91 |
| 2026-09-28 12:00 |
03:17:21.21 |
-06:55:39.6 |
HIP 15396 |
21.05 |
| 2026-09-29 00:00 |
03:17:18.96 |
-06:56:07.9 |
HIP 15396 |
21.22 |
| 2026-09-29 12:00 |
03:17:16.69 |
-06:56:36.2 |
HIP 15396 |
21.42 |
| 2026-09-30 00:00 |
03:17:14.40 |
-06:57:04.4 |
HIP 15396 |
21.65 |
| 2026-09-30 12:00 |
03:17:12.08 |
-06:57:32.5 |
HIP 15396 |
21.91 |
| 2026-10-01 00:00 |
03:17:09.75 |
-06:58:00.6 |
HIP 15396 |
22.19 |
| 2026-10-01 12:00 |
03:17:07.39 |
-06:58:28.6 |
HIP 15396 |
22.50 |
| 2026-10-02 00:00 |
03:17:05.01 |
-06:58:56.5 |
HIP 15245 |
21.89 |
| 2026-10-02 12:00 |
03:17:02.61 |
-06:59:24.4 |
HIP 15245 |
21.26 |
| 2026-10-03 00:00 |
03:17:00.19 |
-06:59:52.2 |
HIP 15245 |
20.64 |
| 2026-10-03 12:00 |
03:16:57.75 |
-07:00:20.0 |
HIP 15245 |
20.03 |
| 2026-10-04 00:00 |
03:16:55.29 |
-07:00:47.7 |
HIP 15245 |
19.43 |
| 2026-10-04 12:00 |
03:16:52.81 |
-07:01:15.3 |
HIP 15245 |
18.84 |
| 2026-10-05 00:00 |
03:16:50.31 |
-07:01:42.9 |
HIP 15245 |
18.26 |
| 2026-10-05 12:00 |
03:16:47.79 |
-07:02:10.3 |
HIP 15245 |
17.70 |
| 2026-10-06 00:00 |
03:16:45.25 |
-07:02:37.7 |
HIP 15245 |
17.16 |
| 2026-10-06 12:00 |
03:16:42.69 |
-07:03:05.0 |
HIP 15245 |
16.64 |
| 2026-10-07 00:00 |
03:16:40.12 |
-07:03:32.3 |
HIP 15245 |
16.14 |
| 2026-10-07 12:00 |
03:16:37.52 |
-07:03:59.4 |
HIP 15245 |
15.66 |
| 2026-10-08 00:00 |
03:16:34.90 |
-07:04:26.5 |
HIP 15245 |
15.22 |
| 2026-10-08 12:00 |
03:16:32.27 |
-07:04:53.5 |
HIP 15245 |
14.80 |
| 2026-10-09 00:00 |
03:16:29.62 |
-07:05:20.4 |
HIP 15245 |
14.41 |
| 2026-10-09 12:00 |
03:16:26.95 |
-07:05:47.2 |
HIP 15245 |
14.07 |
| 2026-10-10 00:00 |
03:16:24.26 |
-07:06:13.9 |
HIP 15245 |
13.76 |
| 2026-10-10 12:00 |
03:16:21.55 |
-07:06:40.5 |
HIP 15245 |
13.49 |
| 2026-10-11 00:00 |
03:16:18.83 |
-07:07:07.0 |
HIP 15245 |
13.28 |