P/2016 R4 (Gibbs)
메타데이터
| 항목 |
값 |
| Designation |
P/2016 R4 (Gibbs) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-07-20T12:01:25.501440Z |
| Orbit solution date (soln_date, UTC) |
2022-05-19T21:13:38Z |
| Obs used |
196 |
| NEO |
- |
| M1 |
15.600 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-09-22.0000000 |
| e |
0.47506023 |
| q (au) |
2.800531 |
| a (au) |
5.334957 |
| i (deg) |
10.862086 |
| Ω (om, deg) |
168.346862 |
| ω (w, deg) |
174.058692 |
| M (ma, deg) |
5.078958 |
밝기
산란 + 전체 선형
$$
M_a = (16.396 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.396 |
| n |
2.000 |
| gf |
0.832 |
| gb |
-0.660 |
| k |
0.898 |
| δ90 |
1.046 |
| 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 |
14:33:49.15 |
-07:20:11.3 |
HIP 71130 |
16.61 |
| 2026-02-03 12:00 |
14:33:55.28 |
-07:19:47.7 |
HIP 71130 |
17.82 |
| 2026-02-04 00:00 |
14:34:01.26 |
-07:19:23.2 |
HIP 71130 |
19.04 |
| 2026-02-04 12:00 |
14:34:07.09 |
-07:18:57.8 |
HIP 71130 |
20.27 |
| 2026-02-05 00:00 |
14:34:12.77 |
-07:18:31.6 |
HIP 71130 |
21.49 |
| 2026-02-05 12:00 |
14:34:18.30 |
-07:18:04.5 |
HIP 71130 |
22.70 |
| 2026-02-06 00:00 |
14:34:23.68 |
-07:17:36.5 |
HIP 71130 |
23.90 |
| 2026-02-06 12:00 |
14:34:28.91 |
-07:17:07.6 |
HIP 71130 |
25.08 |
| 2026-02-07 00:00 |
14:34:33.99 |
-07:16:37.9 |
HIP 71130 |
26.25 |
| 2026-02-07 12:00 |
14:34:38.91 |
-07:16:07.3 |
HIP 71130 |
27.39 |
| 2026-02-08 00:00 |
14:34:43.68 |
-07:15:35.8 |
HIP 71199 |
28.05 |
| 2026-02-08 12:00 |
14:34:48.30 |
-07:15:03.4 |
HIP 71199 |
28.26 |
| 2026-02-09 00:00 |
14:34:52.76 |
-07:14:30.2 |
HIP 71199 |
28.49 |
| 2026-02-09 12:00 |
14:34:57.06 |
-07:13:56.1 |
HIP 71199 |
28.74 |
| 2026-02-10 00:00 |
14:35:01.21 |
-07:13:21.1 |
HIP 71199 |
29.00 |
| 2026-02-10 12:00 |
14:35:05.21 |
-07:12:45.3 |
HIP 71199 |
29.26 |
| 2026-02-11 00:00 |
14:35:09.04 |
-07:12:08.5 |
HIP 71199 |
29.53 |
| 2026-02-11 12:00 |
14:35:12.72 |
-07:11:30.9 |
HIP 71199 |
29.80 |
| 2026-02-12 00:00 |
14:35:16.24 |
-07:10:52.4 |
HIP 71199 |
30.07 |
| 2026-02-12 12:00 |
14:35:19.60 |
-07:10:13.1 |
HIP 71199 |
30.34 |
| 2026-02-13 00:00 |
14:35:22.80 |
-07:09:32.9 |
HIP 71199 |
30.60 |
| 2026-02-13 12:00 |
14:35:25.85 |
-07:08:51.8 |
HIP 71199 |
30.85 |
| 2026-02-14 00:00 |
14:35:28.73 |
-07:08:09.8 |
HIP 71199 |
31.09 |
| 2026-02-14 12:00 |
14:35:31.45 |
-07:07:27.0 |
HIP 71199 |
31.32 |
| 2026-02-15 00:00 |
14:35:34.01 |
-07:06:43.3 |
HIP 71199 |
31.53 |
| 2026-02-15 12:00 |
14:35:36.41 |
-07:05:58.8 |
HIP 71199 |
31.73 |
| 2026-02-16 00:00 |
14:35:38.64 |
-07:05:13.4 |
HIP 71199 |
31.92 |
| 2026-02-16 12:00 |
14:35:40.71 |
-07:04:27.1 |
HIP 71199 |
32.09 |
| 2026-02-17 00:00 |
14:35:42.62 |
-07:03:40.0 |
HIP 71199 |
32.24 |
| 2026-02-17 12:00 |
14:35:44.37 |
-07:02:52.0 |
HIP 71199 |
32.38 |
| 2026-02-18 00:00 |
14:35:45.95 |
-07:02:03.1 |
HIP 71199 |
32.49 |
| 2026-02-18 12:00 |
14:35:47.37 |
-07:01:13.5 |
HIP 71199 |
32.59 |
| 2026-02-19 00:00 |
14:35:48.63 |
-07:00:22.9 |
HIP 71199 |
32.67 |
| 2026-02-19 12:00 |
14:35:49.72 |
-06:59:31.6 |
HIP 71199 |
32.73 |
| 2026-02-20 00:00 |
14:35:50.65 |
-06:58:39.4 |
HIP 71199 |
32.77 |
| 2026-02-20 12:00 |
14:35:51.41 |
-06:57:46.3 |
HIP 71199 |
32.80 |
| 2026-02-21 00:00 |
14:35:52.01 |
-06:56:52.4 |
HIP 71199 |
32.81 |
| 2026-02-21 12:00 |
14:35:52.44 |
-06:55:57.7 |
HIP 71199 |
32.80 |
| 2026-02-22 00:00 |
14:35:52.71 |
-06:55:02.2 |
HIP 71199 |
32.77 |
| 2026-02-22 12:00 |
14:35:52.81 |
-06:54:05.9 |
HIP 71199 |
32.73 |
| 2026-02-23 00:00 |
14:35:52.75 |
-06:53:08.7 |
HIP 71199 |
32.67 |
| 2026-02-23 12:00 |
14:35:52.52 |
-06:52:10.7 |
HIP 71199 |
32.61 |
| 2026-02-24 00:00 |
14:35:52.13 |
-06:51:11.9 |
HIP 71199 |
32.52 |