메타데이터
| 항목 |
값 |
| Designation |
C/2007 K4 (Gibbs) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2007-05-03T17:12:48.067200Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:08Z |
| Obs used |
95 |
| NEO |
- |
| M1 |
11.900 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2007-06-13.0000000 |
| e |
1.00297142 |
| q (au) |
3.527848 |
| a (au) |
-1187.258376 |
| i (deg) |
98.626550 |
| Ω (om, deg) |
68.516312 |
| ω (w, deg) |
162.413892 |
| M (ma, deg) |
0.000971 |
밝기
산란 + 전체 선형
$$
M_a = (9.288 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.288 |
| n |
6.000 |
| gf |
0.972 |
| gb |
-1.000 |
| k |
0.999 |
| δ90 |
1.000 |
| 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) |
| 2026-07-29 00:00 |
05:37:04.41 |
-28:37:30.0 |
HIP 26453 |
7.72 |
| 2026-07-29 12:00 |
05:37:06.96 |
-28:37:50.4 |
HIP 26453 |
7.17 |
| 2026-07-30 00:00 |
05:37:09.48 |
-28:38:10.9 |
HIP 26453 |
6.64 |
| 2026-07-30 12:00 |
05:37:11.98 |
-28:38:31.7 |
HIP 26453 |
6.14 |
| 2026-07-31 00:00 |
05:37:14.47 |
-28:38:52.8 |
HIP 26453 |
5.67 |
| 2026-07-31 12:00 |
05:37:16.93 |
-28:39:14.1 |
HIP 26453 |
5.24 |
| 2026-08-01 00:00 |
05:37:19.38 |
-28:39:35.6 |
HIP 26453 |
4.88 |
| 2026-08-01 12:00 |
05:37:21.80 |
-28:39:57.3 |
HIP 26453 |
4.57 |
| 2026-08-02 00:00 |
05:37:24.21 |
-28:40:19.3 |
HIP 26453 |
4.35 |
| 2026-08-02 12:00 |
05:37:26.60 |
-28:40:41.4 |
HIP 26460 |
4.02 |
| 2026-08-03 00:00 |
05:37:28.96 |
-28:41:03.9 |
HIP 26460 |
3.45 |
| 2026-08-03 12:00 |
05:37:31.30 |
-28:41:26.5 |
HIP 26460 |
2.93 |
| 2026-08-04 00:00 |
05:37:33.63 |
-28:41:49.4 |
HIP 26460 |
2.45 |
| 2026-08-04 12:00 |
05:37:35.93 |
-28:42:12.5 |
HIP 26460 |
2.08 |
| 2026-08-05 00:00 |
05:37:38.21 |
-28:42:35.8 |
HIP 26460 |
1.86 |
| 2026-08-05 12:00 |
05:37:40.47 |
-28:42:59.3 |
HIP 26460 |
1.84 |
| 2026-08-06 00:00 |
05:37:42.71 |
-28:43:23.0 |
HIP 26460 |
2.04 |
| 2026-08-06 12:00 |
05:37:44.92 |
-28:43:47.0 |
HIP 26460 |
2.40 |
| 2026-08-07 00:00 |
05:37:47.12 |
-28:44:11.2 |
HIP 26460 |
2.85 |
| 2026-08-07 12:00 |
05:37:49.29 |
-28:44:35.6 |
HIP 26460 |
3.36 |
| 2026-08-08 00:00 |
05:37:51.44 |
-28:45:00.2 |
HIP 26460 |
3.91 |
| 2026-08-08 12:00 |
05:37:53.57 |
-28:45:25.0 |
HIP 26460 |
4.48 |
| 2026-08-09 00:00 |
05:37:55.67 |
-28:45:50.0 |
HIP 26460 |
5.06 |
| 2026-08-09 12:00 |
05:37:57.76 |
-28:46:15.2 |
HIP 26460 |
5.65 |
| 2026-08-10 00:00 |
05:37:59.82 |
-28:46:40.6 |
HIP 26460 |
6.25 |
| 2026-08-10 12:00 |
05:38:01.85 |
-28:47:06.2 |
HIP 26460 |
6.85 |
| 2026-08-11 00:00 |
05:38:03.86 |
-28:47:32.1 |
HIP 26528 |
6.95 |
| 2026-08-11 12:00 |
05:38:05.85 |
-28:47:58.1 |
HIP 26528 |
6.39 |
| 2026-08-12 00:00 |
05:38:07.82 |
-28:48:24.3 |
HIP 26528 |
5.84 |
| 2026-08-12 12:00 |
05:38:09.76 |
-28:48:50.7 |
HIP 26528 |
5.31 |
| 2026-08-13 00:00 |
05:38:11.68 |
-28:49:17.3 |
HIP 26528 |
4.80 |
| 2026-08-13 12:00 |
05:38:13.57 |
-28:49:44.1 |
HIP 26528 |
4.32 |
| 2026-08-14 00:00 |
05:38:15.44 |
-28:50:11.1 |
HIP 26528 |
3.89 |
| 2026-08-14 12:00 |
05:38:17.28 |
-28:50:38.3 |
HIP 26528 |
3.51 |
| 2026-08-15 00:00 |
05:38:19.10 |
-28:51:05.7 |
HIP 26528 |
3.21 |
| 2026-08-15 12:00 |
05:38:20.90 |
-28:51:33.2 |
HIP 26528 |
3.01 |
| 2026-08-16 00:00 |
05:38:22.67 |
-28:52:00.9 |
HIP 26528 |
2.94 |
| 2026-08-16 12:00 |
05:38:24.41 |
-28:52:28.8 |
HIP 26528 |
2.99 |
| 2026-08-17 00:00 |
05:38:26.13 |
-28:52:56.9 |
HIP 26528 |
3.16 |
| 2026-08-17 12:00 |
05:38:27.83 |
-28:53:25.1 |
HIP 26528 |
3.43 |
| 2026-08-18 00:00 |
05:38:29.49 |
-28:53:53.5 |
HIP 26528 |
3.78 |
| 2026-08-18 12:00 |
05:38:31.14 |
-28:54:22.1 |
HIP 26528 |
4.20 |
| 2026-08-19 00:00 |
05:38:32.75 |
-28:54:50.8 |
HIP 26528 |
4.65 |