331P/Gibbs
메타데이터
| 항목 |
값 |
| Designation |
331P/Gibbs |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-06-16T04:23:51.780480Z |
| Orbit solution date (soln_date, UTC) |
2025-12-18T15:12:38Z |
| Obs used |
200 |
| NEO |
- |
| M1 |
16.800 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2014-11-18.0000000 |
| e |
0.04135913 |
| q (au) |
2.880287 |
| a (au) |
3.004552 |
| i (deg) |
9.738157 |
| Ω (om, deg) |
216.839271 |
| ω (w, deg) |
178.117553 |
| M (ma, deg) |
320.222954 |
밝기
산란 + 전체 선형
$$
M_a = (11.094 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.094 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
01:58:31.57 |
+09:39:34.6 |
HIP 9202 |
25.38 |
| 2026-02-03 12:00 |
01:59:02.38 |
+09:41:39.3 |
HIP 9202 |
28.91 |
| 2026-02-04 00:00 |
01:59:33.37 |
+09:43:44.8 |
HIP 9202 |
33.96 |
| 2026-02-04 12:00 |
02:00:04.53 |
+09:45:51.3 |
HIP 9202 |
40.00 |
| 2026-02-05 00:00 |
02:00:35.88 |
+09:47:58.7 |
HIP 9599 |
42.77 |
| 2026-02-05 12:00 |
02:01:07.40 |
+09:50:06.9 |
HIP 9599 |
34.82 |
| 2026-02-06 00:00 |
02:01:39.09 |
+09:52:16.0 |
HIP 9599 |
26.89 |
| 2026-02-06 12:00 |
02:02:10.96 |
+09:54:25.9 |
HIP 9599 |
19.06 |
| 2026-02-07 00:00 |
02:02:43.00 |
+09:56:36.7 |
HIP 9599 |
11.64 |
| 2026-02-07 12:00 |
02:03:15.21 |
+09:58:48.3 |
HIP 9599 |
6.45 |
| 2026-02-08 00:00 |
02:03:47.59 |
+10:01:00.8 |
HIP 9599 |
9.14 |
| 2026-02-08 12:00 |
02:04:20.14 |
+10:03:14.0 |
HIP 9718 |
10.61 |
| 2026-02-09 00:00 |
02:04:52.85 |
+10:05:28.0 |
HIP 9718 |
2.41 |
| 2026-02-09 12:00 |
02:05:25.74 |
+10:07:42.7 |
HIP 9748 |
3.16 |
| 2026-02-10 00:00 |
02:05:58.79 |
+10:09:58.2 |
HIP 9748 |
10.25 |
| 2026-02-10 12:00 |
02:06:32.00 |
+10:12:14.5 |
HIP 9904 |
15.02 |
| 2026-02-11 00:00 |
02:07:05.38 |
+10:14:31.5 |
HIP 9904 |
6.57 |
| 2026-02-11 12:00 |
02:07:38.92 |
+10:16:49.2 |
HIP 9904 |
2.47 |
| 2026-02-12 00:00 |
02:08:12.62 |
+10:19:07.6 |
HIP 9904 |
10.80 |
| 2026-02-12 12:00 |
02:08:46.49 |
+10:21:26.7 |
HIP 9904 |
19.41 |
| 2026-02-13 00:00 |
02:09:20.51 |
+10:23:46.4 |
HIP 9904 |
28.08 |
| 2026-02-13 12:00 |
02:09:54.69 |
+10:26:06.8 |
HIP 9904 |
36.80 |
| 2026-02-14 00:00 |
02:10:29.02 |
+10:28:27.9 |
HIP 10288 |
31.00 |
| 2026-02-14 12:00 |
02:11:03.52 |
+10:30:49.6 |
HIP 10288 |
23.98 |
| 2026-02-15 00:00 |
02:11:38.17 |
+10:33:11.9 |
HIP 10288 |
18.54 |
| 2026-02-15 12:00 |
02:12:12.97 |
+10:35:34.8 |
HIP 10288 |
16.39 |
| 2026-02-16 00:00 |
02:12:47.92 |
+10:37:58.3 |
HIP 10288 |
18.77 |
| 2026-02-16 12:00 |
02:13:23.03 |
+10:40:22.4 |
HIP 10288 |
24.42 |
| 2026-02-17 00:00 |
02:13:58.29 |
+10:42:47.0 |
HIP 10530 |
25.56 |
| 2026-02-17 12:00 |
02:14:33.69 |
+10:45:12.2 |
HIP 10530 |
16.66 |
| 2026-02-18 00:00 |
02:15:09.25 |
+10:47:37.9 |
HIP 10530 |
8.04 |
| 2026-02-18 12:00 |
02:15:44.95 |
+10:50:04.2 |
HIP 10533 |
3.86 |
| 2026-02-19 00:00 |
02:16:20.80 |
+10:52:30.9 |
HIP 10533 |
11.34 |
| 2026-02-19 12:00 |
02:16:56.79 |
+10:54:58.2 |
HIP 10533 |
20.26 |
| 2026-02-20 00:00 |
02:17:32.93 |
+10:57:25.9 |
HIP 10752 |
16.77 |
| 2026-02-20 12:00 |
02:18:09.21 |
+10:59:54.1 |
HIP 10752 |
15.14 |
| 2026-02-21 00:00 |
02:18:45.63 |
+11:02:22.7 |
HIP 10752 |
18.67 |
| 2026-02-21 12:00 |
02:19:22.19 |
+11:04:51.7 |
HIP 10752 |
25.33 |
| 2026-02-22 00:00 |
02:19:58.89 |
+11:07:21.2 |
HIP 10752 |
33.32 |
| 2026-02-22 12:00 |
02:20:35.73 |
+11:09:51.1 |
HIP 10939 |
33.43 |
| 2026-02-23 00:00 |
02:21:12.70 |
+11:12:21.4 |
HIP 10939 |
35.94 |
| 2026-02-23 12:00 |
02:21:49.81 |
+11:14:52.0 |
HIP 11130 |
32.18 |
| 2026-02-24 00:00 |
02:22:27.06 |
+11:17:23.0 |
HIP 11130 |
29.53 |