메타데이터
| 항목 |
값 |
| Designation |
229P/Gibbs |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2017-05-20T22:45:24.773760Z |
| Orbit solution date (soln_date, UTC) |
2025-07-31T12:12:41Z |
| Obs used |
293 |
| NEO |
- |
| M1 |
13.900 |
| K1 |
9.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2015-10-15.0000000 |
| e |
0.37605919 |
| q (au) |
2.454753 |
| a (au) |
3.934273 |
| i (deg) |
26.069392 |
| Ω (om, deg) |
157.911010 |
| ω (w, deg) |
224.219557 |
| M (ma, deg) |
286.246652 |
밝기
산란 + 전체 선형
$$
M_a = (11.598 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.598 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.822 |
| k |
0.997 |
| δ90 |
9.964 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
06:32:37.23 |
+04:03:50.9 |
HIP 31197 |
15.04 |
| 2026-03-26 12:00 |
06:32:56.30 |
+04:07:47.0 |
HIP 31197 |
19.21 |
| 2026-03-27 00:00 |
06:33:15.58 |
+04:11:41.7 |
HIP 31303 |
21.70 |
| 2026-03-27 12:00 |
06:33:35.07 |
+04:15:34.9 |
HIP 31303 |
16.43 |
| 2026-03-28 00:00 |
06:33:54.77 |
+04:19:26.6 |
HIP 31303 |
12.12 |
| 2026-03-28 12:00 |
06:34:14.67 |
+04:23:16.8 |
HIP 31303 |
10.15 |
| 2026-03-29 00:00 |
06:34:34.78 |
+04:27:05.5 |
HIP 31303 |
11.79 |
| 2026-03-29 12:00 |
06:34:55.10 |
+04:30:52.7 |
HIP 31303 |
16.00 |
| 2026-03-30 00:00 |
06:35:15.62 |
+04:34:38.4 |
HIP 31523 |
12.07 |
| 2026-03-30 12:00 |
06:35:36.33 |
+04:38:22.6 |
HIP 31523 |
10.36 |
| 2026-03-31 00:00 |
06:35:57.25 |
+04:42:05.3 |
HIP 31523 |
12.23 |
| 2026-03-31 12:00 |
06:36:18.36 |
+04:45:46.5 |
HIP 31598 |
8.15 |
| 2026-04-01 00:00 |
06:36:39.67 |
+04:49:26.1 |
HIP 31598 |
7.96 |
| 2026-04-01 12:00 |
06:37:01.16 |
+04:53:04.3 |
HIP 31598 |
11.97 |
| 2026-04-02 00:00 |
06:37:22.86 |
+04:56:40.9 |
HIP 31697 |
7.47 |
| 2026-04-02 12:00 |
06:37:44.74 |
+05:00:16.0 |
HIP 31697 |
3.49 |
| 2026-04-03 00:00 |
06:38:06.81 |
+05:03:49.6 |
HIP 31697 |
7.32 |
| 2026-04-03 12:00 |
06:38:29.06 |
+05:07:21.7 |
HIP 31697 |
13.46 |
| 2026-04-04 00:00 |
06:38:51.50 |
+05:10:52.2 |
HIP 31697 |
19.90 |
| 2026-04-04 12:00 |
06:39:14.13 |
+05:14:21.2 |
HIP 31923 |
25.19 |
| 2026-04-05 00:00 |
06:39:36.94 |
+05:17:48.7 |
HIP 31923 |
25.22 |
| 2026-04-05 12:00 |
06:39:59.92 |
+05:21:14.7 |
HIP 31793 |
26.19 |
| 2026-04-06 00:00 |
06:40:23.09 |
+05:24:39.2 |
HIP 31793 |
28.13 |
| 2026-04-06 12:00 |
06:40:46.43 |
+05:28:02.1 |
HIP 31793 |
31.46 |
| 2026-04-07 00:00 |
06:41:09.95 |
+05:31:23.5 |
HIP 32034 |
35.60 |
| 2026-04-07 12:00 |
06:41:33.65 |
+05:34:43.4 |
HIP 32034 |
31.94 |
| 2026-04-08 00:00 |
06:41:57.51 |
+05:38:01.7 |
HIP 32212 |
25.71 |
| 2026-04-08 12:00 |
06:42:21.55 |
+05:41:18.5 |
HIP 32212 |
18.89 |
| 2026-04-09 00:00 |
06:42:45.76 |
+05:44:33.8 |
HIP 32212 |
12.05 |
| 2026-04-09 12:00 |
06:43:10.14 |
+05:47:47.5 |
HIP 32212 |
5.22 |
| 2026-04-10 00:00 |
06:43:34.69 |
+05:50:59.7 |
HIP 32212 |
1.94 |
| 2026-04-10 12:00 |
06:43:59.40 |
+05:54:10.4 |
HIP 32212 |
8.71 |
| 2026-04-11 00:00 |
06:44:24.28 |
+05:57:19.6 |
HIP 32212 |
15.64 |
| 2026-04-11 12:00 |
06:44:49.32 |
+06:00:27.2 |
HIP 32287 |
17.52 |
| 2026-04-12 00:00 |
06:45:14.52 |
+06:03:33.2 |
HIP 32287 |
18.13 |
| 2026-04-12 12:00 |
06:45:39.88 |
+06:06:37.8 |
HIP 32287 |
21.22 |
| 2026-04-13 00:00 |
06:46:05.40 |
+06:09:40.8 |
HIP 32287 |
25.93 |
| 2026-04-13 12:00 |
06:46:31.08 |
+06:12:42.3 |
HIP 32569 |
19.44 |
| 2026-04-14 00:00 |
06:46:56.92 |
+06:15:42.2 |
HIP 32569 |
12.51 |
| 2026-04-14 12:00 |
06:47:22.91 |
+06:18:40.6 |
HIP 32569 |
5.94 |
| 2026-04-15 00:00 |
06:47:49.05 |
+06:21:37.4 |
HIP 32569 |
3.86 |
| 2026-04-15 12:00 |
06:48:15.34 |
+06:24:32.7 |
HIP 32569 |
9.82 |
| 2026-04-16 00:00 |
06:48:41.79 |
+06:27:26.5 |
HIP 32631 |
15.31 |