메타데이터
| 항목 |
값 |
| Designation |
428P/Gibbs |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-11-14T13:43:38.052480Z |
| Orbit solution date (soln_date, UTC) |
2023-05-03T22:44:57Z |
| Obs used |
130 |
| NEO |
- |
| M1 |
11.700 |
| K1 |
22.750 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2021-08-16T03:08:49.632000Z |
| Discovery magnitude (MPC) |
20.00 T |
| Discovery observatory (MPC) |
Z84 · Calar Alto-Schmidt |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2017-07-29.0000000 |
| e |
0.51895674 |
| q (au) |
1.675591 |
| a (au) |
3.483245 |
| i (deg) |
8.514132 |
| Ω (om, deg) |
299.322409 |
| ω (w, deg) |
36.937480 |
| M (ma, deg) |
149.704035 |
밝기
산란 + 전체 선형
$$
M_a = (14.349 + 5.458\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.349 |
| n |
5.458 |
| gf |
0.999 |
| gb |
-0.874 |
| k |
0.999 |
| δ90 |
9.999 |
| 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 |
12:09:47.44 |
-11:39:34.8 |
HIP 59272 |
12.71 |
| 2026-06-01 12:00 |
12:09:45.45 |
-11:38:16.2 |
HIP 59272 |
13.78 |
| 2026-06-02 00:00 |
12:09:43.70 |
-11:36:59.0 |
HIP 59272 |
14.90 |
| 2026-06-02 12:00 |
12:09:42.19 |
-11:35:43.2 |
HIP 59272 |
16.04 |
| 2026-06-03 00:00 |
12:09:40.92 |
-11:34:28.8 |
HIP 59272 |
17.20 |
| 2026-06-03 12:00 |
12:09:39.90 |
-11:33:15.9 |
HIP 59272 |
18.35 |
| 2026-06-04 00:00 |
12:09:39.12 |
-11:32:04.4 |
HIP 59272 |
19.51 |
| 2026-06-04 12:00 |
12:09:38.59 |
-11:30:54.4 |
HIP 59272 |
20.65 |
| 2026-06-05 00:00 |
12:09:38.29 |
-11:29:45.8 |
HIP 59272 |
21.77 |
| 2026-06-05 12:00 |
12:09:38.24 |
-11:28:38.7 |
HIP 59272 |
22.88 |
| 2026-06-06 00:00 |
12:09:38.43 |
-11:27:33.1 |
HIP 59272 |
23.98 |
| 2026-06-06 12:00 |
12:09:38.86 |
-11:26:28.9 |
HIP 59272 |
25.05 |
| 2026-06-07 00:00 |
12:09:39.53 |
-11:25:26.2 |
HIP 59272 |
26.11 |
| 2026-06-07 12:00 |
12:09:40.44 |
-11:24:24.9 |
HIP 59272 |
27.15 |
| 2026-06-08 00:00 |
12:09:41.59 |
-11:23:25.2 |
HIP 59272 |
28.17 |
| 2026-06-08 12:00 |
12:09:42.98 |
-11:22:26.9 |
HIP 59272 |
29.17 |
| 2026-06-09 00:00 |
12:09:44.60 |
-11:21:30.2 |
HIP 59272 |
30.16 |
| 2026-06-09 12:00 |
12:09:46.47 |
-11:20:34.9 |
HIP 59272 |
31.14 |
| 2026-06-10 00:00 |
12:09:48.57 |
-11:19:41.2 |
HIP 59272 |
32.10 |
| 2026-06-10 12:00 |
12:09:50.92 |
-11:18:48.9 |
HIP 59272 |
33.05 |
| 2026-06-11 00:00 |
12:09:53.50 |
-11:17:58.2 |
HIP 59272 |
33.99 |
| 2026-06-11 12:00 |
12:09:56.31 |
-11:17:09.0 |
HIP 59272 |
34.93 |
| 2026-06-12 00:00 |
12:09:59.36 |
-11:16:21.3 |
HIP 59272 |
35.86 |
| 2026-06-12 12:00 |
12:10:02.65 |
-11:15:35.1 |
HIP 59272 |
36.79 |
| 2026-06-13 00:00 |
12:10:06.18 |
-11:14:50.4 |
HIP 59403 |
35.93 |
| 2026-06-13 12:00 |
12:10:09.93 |
-11:14:07.3 |
HIP 59403 |
34.89 |
| 2026-06-14 00:00 |
12:10:13.93 |
-11:13:25.7 |
HIP 59403 |
33.85 |
| 2026-06-14 12:00 |
12:10:18.15 |
-11:12:45.7 |
HIP 59403 |
32.83 |
| 2026-06-15 00:00 |
12:10:22.61 |
-11:12:07.1 |
HIP 59403 |
31.83 |
| 2026-06-15 12:00 |
12:10:27.30 |
-11:11:30.2 |
HIP 59403 |
30.85 |
| 2026-06-16 00:00 |
12:10:32.22 |
-11:10:54.7 |
HIP 59403 |
29.90 |
| 2026-06-16 12:00 |
12:10:37.37 |
-11:10:20.8 |
HIP 59403 |
29.00 |
| 2026-06-17 00:00 |
12:10:42.75 |
-11:09:48.4 |
HIP 59403 |
28.14 |
| 2026-06-17 12:00 |
12:10:48.36 |
-11:09:17.6 |
HIP 59403 |
27.35 |
| 2026-06-18 00:00 |
12:10:54.20 |
-11:08:48.3 |
HIP 59403 |
26.63 |
| 2026-06-18 12:00 |
12:11:00.27 |
-11:08:20.6 |
HIP 59403 |
26.00 |
| 2026-06-19 00:00 |
12:11:06.56 |
-11:07:54.4 |
HIP 59403 |
25.47 |
| 2026-06-19 12:00 |
12:11:13.08 |
-11:07:29.7 |
HIP 59403 |
25.07 |
| 2026-06-20 00:00 |
12:11:19.82 |
-11:07:06.5 |
HIP 59403 |
24.80 |
| 2026-06-20 12:00 |
12:11:26.78 |
-11:06:44.9 |
HIP 59403 |
24.67 |
| 2026-06-21 00:00 |
12:11:33.96 |
-11:06:24.9 |
HIP 59403 |
24.71 |
| 2026-06-21 12:00 |
12:11:41.37 |
-11:06:06.3 |
HIP 59403 |
24.92 |
| 2026-06-22 00:00 |
12:11:49.00 |
-11:05:49.3 |
HIP 59403 |
25.31 |