C/2007 T5 (Gibbs)
메타데이터
| 항목 |
값 |
| Designation |
C/2007 T5 (Gibbs) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2008-05-24T05:40:47.795520Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:13Z |
| Obs used |
285 |
| NEO |
- |
| M1 |
12.800 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2008-01-26.0000000 |
| e |
0.91362737 |
| q (au) |
4.049258 |
| a (au) |
46.881263 |
| i (deg) |
45.615235 |
| Ω (om, deg) |
109.843075 |
| ω (w, deg) |
34.416471 |
| M (ma, deg) |
359.633887 |
밝기
산란 + 전체 선형
$$
M_a = (10.741 + 2.562\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.741 |
| n |
2.562 |
| gf |
1.000 |
| gb |
-0.502 |
| 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) |
| 2026-02-03 00:00 |
19:28:18.55 |
-21:48:05.3 |
HIP 95564 |
27.76 |
| 2026-02-03 12:00 |
19:28:22.48 |
-21:48:00.5 |
HIP 95895 |
27.02 |
| 2026-02-04 00:00 |
19:28:26.40 |
-21:47:55.8 |
HIP 95895 |
26.22 |
| 2026-02-04 12:00 |
19:28:30.30 |
-21:47:51.1 |
HIP 95895 |
25.43 |
| 2026-02-05 00:00 |
19:28:34.20 |
-21:47:46.4 |
HIP 95895 |
24.65 |
| 2026-02-05 12:00 |
19:28:38.07 |
-21:47:41.8 |
HIP 95895 |
23.88 |
| 2026-02-06 00:00 |
19:28:41.93 |
-21:47:37.2 |
HIP 95895 |
23.12 |
| 2026-02-06 12:00 |
19:28:45.78 |
-21:47:32.6 |
HIP 95895 |
22.38 |
| 2026-02-07 00:00 |
19:28:49.61 |
-21:47:28.0 |
HIP 95895 |
21.66 |
| 2026-02-07 12:00 |
19:28:53.43 |
-21:47:23.4 |
HIP 95895 |
20.94 |
| 2026-02-08 00:00 |
19:28:57.23 |
-21:47:18.9 |
HIP 95895 |
20.25 |
| 2026-02-08 12:00 |
19:29:01.02 |
-21:47:14.4 |
HIP 95895 |
19.57 |
| 2026-02-09 00:00 |
19:29:04.79 |
-21:47:09.9 |
HIP 95895 |
18.91 |
| 2026-02-09 12:00 |
19:29:08.54 |
-21:47:05.5 |
HIP 95895 |
18.28 |
| 2026-02-10 00:00 |
19:29:12.28 |
-21:47:01.1 |
HIP 95895 |
17.67 |
| 2026-02-10 12:00 |
19:29:16.00 |
-21:46:56.7 |
HIP 95895 |
17.08 |
| 2026-02-11 00:00 |
19:29:19.70 |
-21:46:52.4 |
HIP 95895 |
16.52 |
| 2026-02-11 12:00 |
19:29:23.39 |
-21:46:48.1 |
HIP 95895 |
15.98 |
| 2026-02-12 00:00 |
19:29:27.06 |
-21:46:43.8 |
HIP 95895 |
15.48 |
| 2026-02-12 12:00 |
19:29:30.71 |
-21:46:39.5 |
HIP 95895 |
15.01 |
| 2026-02-13 00:00 |
19:29:34.34 |
-21:46:35.3 |
HIP 95895 |
14.58 |
| 2026-02-13 12:00 |
19:29:37.96 |
-21:46:31.1 |
HIP 95895 |
14.19 |
| 2026-02-14 00:00 |
19:29:41.55 |
-21:46:27.0 |
HIP 95895 |
13.84 |
| 2026-02-14 12:00 |
19:29:45.13 |
-21:46:22.8 |
HIP 95895 |
13.54 |
| 2026-02-15 00:00 |
19:29:48.69 |
-21:46:18.8 |
HIP 95895 |
13.28 |
| 2026-02-15 12:00 |
19:29:52.23 |
-21:46:14.7 |
HIP 95895 |
13.06 |
| 2026-02-16 00:00 |
19:29:55.75 |
-21:46:10.7 |
HIP 95895 |
12.90 |
| 2026-02-16 12:00 |
19:29:59.25 |
-21:46:06.8 |
HIP 95895 |
12.79 |
| 2026-02-17 00:00 |
19:30:02.72 |
-21:46:02.8 |
HIP 95895 |
12.73 |
| 2026-02-17 12:00 |
19:30:06.18 |
-21:45:58.9 |
HIP 95895 |
12.72 |
| 2026-02-18 00:00 |
19:30:09.62 |
-21:45:55.1 |
HIP 95895 |
12.76 |
| 2026-02-18 12:00 |
19:30:13.04 |
-21:45:51.3 |
HIP 95895 |
12.85 |
| 2026-02-19 00:00 |
19:30:16.44 |
-21:45:47.5 |
HIP 95895 |
12.99 |
| 2026-02-19 12:00 |
19:30:19.81 |
-21:45:43.8 |
HIP 95895 |
13.17 |
| 2026-02-20 00:00 |
19:30:23.17 |
-21:45:40.1 |
HIP 95895 |
13.40 |
| 2026-02-20 12:00 |
19:30:26.50 |
-21:45:36.5 |
HIP 95895 |
13.66 |
| 2026-02-21 00:00 |
19:30:29.81 |
-21:45:32.9 |
HIP 95895 |
13.96 |
| 2026-02-21 12:00 |
19:30:33.10 |
-21:45:29.3 |
HIP 95895 |
14.29 |
| 2026-02-22 00:00 |
19:30:36.36 |
-21:45:25.8 |
HIP 95895 |
14.65 |
| 2026-02-22 12:00 |
19:30:39.61 |
-21:45:22.4 |
HIP 95895 |
15.03 |
| 2026-02-23 00:00 |
19:30:42.83 |
-21:45:18.9 |
HIP 95895 |
15.44 |
| 2026-02-23 12:00 |
19:30:46.02 |
-21:45:15.6 |
HIP 95895 |
15.88 |
| 2026-02-24 00:00 |
19:30:49.20 |
-21:45:12.2 |
HIP 95895 |
16.33 |