메타데이터
| 항목 |
값 |
| Designation |
C/2009 K4 (Gibbs) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2009-06-19T09:14:16.163520Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:30Z |
| Obs used |
125 |
| NEO |
- |
| M1 |
13.800 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2009-06-09.0000000 |
| e |
0.96252699 |
| q (au) |
1.548875 |
| a (au) |
41.333073 |
| i (deg) |
34.824991 |
| Ω (om, deg) |
30.125128 |
| ω (w, deg) |
127.471471 |
| M (ma, deg) |
359.961482 |
밝기
산란 + 전체 선형
$$
M_a = (14.554 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.554 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-06-01 00:00 |
22:41:21.40 |
-44:33:51.3 |
HIP 112207 |
23.27 |
| 2026-06-01 12:00 |
22:41:21.49 |
-44:34:22.3 |
HIP 112207 |
23.26 |
| 2026-06-02 00:00 |
22:41:21.54 |
-44:34:53.5 |
HIP 112207 |
23.26 |
| 2026-06-02 12:00 |
22:41:21.55 |
-44:35:24.8 |
HIP 112207 |
23.28 |
| 2026-06-03 00:00 |
22:41:21.52 |
-44:35:56.2 |
HIP 112207 |
23.33 |
| 2026-06-03 12:00 |
22:41:21.45 |
-44:36:27.8 |
HIP 112207 |
23.39 |
| 2026-06-04 00:00 |
22:41:21.34 |
-44:36:59.5 |
HIP 112207 |
23.47 |
| 2026-06-04 12:00 |
22:41:21.19 |
-44:37:31.4 |
HIP 112207 |
23.56 |
| 2026-06-05 00:00 |
22:41:21.00 |
-44:38:03.3 |
HIP 112207 |
23.68 |
| 2026-06-05 12:00 |
22:41:20.77 |
-44:38:35.4 |
HIP 112207 |
23.82 |
| 2026-06-06 00:00 |
22:41:20.50 |
-44:39:07.6 |
HIP 112207 |
23.97 |
| 2026-06-06 12:00 |
22:41:20.19 |
-44:39:39.9 |
HIP 112207 |
24.15 |
| 2026-06-07 00:00 |
22:41:19.83 |
-44:40:12.4 |
HIP 112207 |
24.34 |
| 2026-06-07 12:00 |
22:41:19.44 |
-44:40:45.0 |
HIP 112207 |
24.55 |
| 2026-06-08 00:00 |
22:41:19.01 |
-44:41:17.6 |
HIP 112207 |
24.77 |
| 2026-06-08 12:00 |
22:41:18.53 |
-44:41:50.4 |
HIP 112207 |
25.02 |
| 2026-06-09 00:00 |
22:41:18.02 |
-44:42:23.3 |
HIP 112207 |
25.28 |
| 2026-06-09 12:00 |
22:41:17.47 |
-44:42:56.3 |
HIP 112207 |
25.56 |
| 2026-06-10 00:00 |
22:41:16.87 |
-44:43:29.4 |
HIP 112207 |
25.86 |
| 2026-06-10 12:00 |
22:41:16.24 |
-44:44:02.7 |
HIP 112207 |
26.17 |
| 2026-06-11 00:00 |
22:41:15.56 |
-44:44:36.0 |
HIP 112207 |
26.49 |
| 2026-06-11 12:00 |
22:41:14.84 |
-44:45:09.4 |
HIP 112207 |
26.83 |
| 2026-06-12 00:00 |
22:41:14.09 |
-44:45:42.9 |
HIP 111971 |
26.83 |
| 2026-06-12 12:00 |
22:41:13.29 |
-44:46:16.5 |
HIP 111971 |
26.25 |
| 2026-06-13 00:00 |
22:41:12.45 |
-44:46:50.2 |
HIP 111971 |
25.67 |
| 2026-06-13 12:00 |
22:41:11.57 |
-44:47:23.9 |
HIP 111971 |
25.09 |
| 2026-06-14 00:00 |
22:41:10.66 |
-44:47:57.8 |
HIP 111971 |
24.51 |
| 2026-06-14 12:00 |
22:41:09.70 |
-44:48:31.7 |
HIP 111971 |
23.93 |
| 2026-06-15 00:00 |
22:41:08.70 |
-44:49:05.7 |
HIP 111971 |
23.34 |
| 2026-06-15 12:00 |
22:41:07.66 |
-44:49:39.8 |
HIP 111971 |
22.76 |
| 2026-06-16 00:00 |
22:41:06.58 |
-44:50:14.0 |
HIP 111971 |
22.17 |
| 2026-06-16 12:00 |
22:41:05.46 |
-44:50:48.2 |
HIP 111971 |
21.58 |
| 2026-06-17 00:00 |
22:41:04.30 |
-44:51:22.5 |
HIP 111971 |
20.99 |
| 2026-06-17 12:00 |
22:41:03.10 |
-44:51:56.8 |
HIP 111971 |
20.40 |
| 2026-06-18 00:00 |
22:41:01.86 |
-44:52:31.2 |
HIP 111971 |
19.80 |
| 2026-06-18 12:00 |
22:41:00.58 |
-44:53:05.7 |
HIP 111971 |
19.21 |
| 2026-06-19 00:00 |
22:40:59.26 |
-44:53:40.2 |
HIP 111971 |
18.62 |
| 2026-06-19 12:00 |
22:40:57.91 |
-44:54:14.8 |
HIP 111971 |
18.03 |
| 2026-06-20 00:00 |
22:40:56.51 |
-44:54:49.4 |
HIP 111971 |
17.44 |
| 2026-06-20 12:00 |
22:40:55.07 |
-44:55:24.1 |
HIP 111971 |
16.85 |
| 2026-06-21 00:00 |
22:40:53.60 |
-44:55:58.8 |
HIP 111971 |
16.26 |
| 2026-06-21 12:00 |
22:40:52.08 |
-44:56:33.5 |
HIP 111971 |
15.68 |
| 2026-06-22 00:00 |
22:40:50.53 |
-44:57:08.3 |
HIP 111971 |
15.10 |