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
$$
M_a = (16.381 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.381 |
| n |
2.000 |
| gf |
0.833 |
| gb |
-0.660 |
| k |
0.903 |
| δ90 |
1.118 |
| 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) |
| 2026-06-01 00:00 |
14:01:36.73 |
-02:23:09.4 |
HIP 68595 |
17.99 |
| 2026-06-01 12:00 |
14:01:26.89 |
-02:22:33.5 |
HIP 68469 |
17.79 |
| 2026-06-02 00:00 |
14:01:17.18 |
-02:21:58.6 |
HIP 68469 |
17.73 |
| 2026-06-02 12:00 |
14:01:07.60 |
-02:21:24.8 |
HIP 68440 |
17.78 |
| 2026-06-03 00:00 |
14:00:58.16 |
-02:20:52.1 |
HIP 68440 |
16.49 |
| 2026-06-03 12:00 |
14:00:48.84 |
-02:20:20.5 |
HIP 68440 |
15.51 |
| 2026-06-04 00:00 |
14:00:39.66 |
-02:19:49.9 |
HIP 68440 |
14.86 |
| 2026-06-04 12:00 |
14:00:30.61 |
-02:19:20.5 |
HIP 68440 |
14.58 |
| 2026-06-05 00:00 |
14:00:21.69 |
-02:18:52.1 |
HIP 68440 |
14.68 |
| 2026-06-05 12:00 |
14:00:12.92 |
-02:18:24.8 |
HIP 68440 |
15.11 |
| 2026-06-06 00:00 |
14:00:04.28 |
-02:17:58.5 |
HIP 68440 |
15.85 |
| 2026-06-06 12:00 |
13:59:55.78 |
-02:17:33.4 |
HIP 68440 |
16.84 |
| 2026-06-07 00:00 |
13:59:47.42 |
-02:17:09.4 |
HIP 68440 |
18.02 |
| 2026-06-07 12:00 |
13:59:39.20 |
-02:16:46.4 |
HIP 68440 |
19.35 |
| 2026-06-08 00:00 |
13:59:31.12 |
-02:16:24.6 |
HIP 68440 |
20.78 |
| 2026-06-08 12:00 |
13:59:23.19 |
-02:16:03.8 |
HIP 68440 |
22.29 |
| 2026-06-09 00:00 |
13:59:15.40 |
-02:15:44.2 |
HIP 68210 |
20.82 |
| 2026-06-09 12:00 |
13:59:07.75 |
-02:15:25.7 |
HIP 68210 |
18.99 |
| 2026-06-10 00:00 |
13:59:00.25 |
-02:15:08.2 |
HIP 68210 |
17.22 |
| 2026-06-10 12:00 |
13:58:52.90 |
-02:14:51.9 |
HIP 68210 |
15.52 |
| 2026-06-11 00:00 |
13:58:45.70 |
-02:14:36.6 |
HIP 68210 |
13.87 |
| 2026-06-11 12:00 |
13:58:38.64 |
-02:14:22.5 |
HIP 68210 |
12.31 |
| 2026-06-12 00:00 |
13:58:31.73 |
-02:14:09.5 |
HIP 68210 |
10.83 |
| 2026-06-12 12:00 |
13:58:24.98 |
-02:13:57.5 |
HIP 68210 |
9.47 |
| 2026-06-13 00:00 |
13:58:18.37 |
-02:13:46.7 |
HIP 68210 |
8.25 |
| 2026-06-13 12:00 |
13:58:11.92 |
-02:13:37.0 |
HIP 68210 |
7.22 |
| 2026-06-14 00:00 |
13:58:05.62 |
-02:13:28.4 |
HIP 68210 |
6.44 |
| 2026-06-14 12:00 |
13:57:59.48 |
-02:13:20.9 |
HIP 68210 |
5.97 |
| 2026-06-15 00:00 |
13:57:53.48 |
-02:13:14.5 |
HIP 68210 |
5.87 |
| 2026-06-15 12:00 |
13:57:47.65 |
-02:13:09.2 |
HIP 68210 |
6.11 |
| 2026-06-16 00:00 |
13:57:41.97 |
-02:13:05.1 |
HIP 68210 |
6.64 |
| 2026-06-16 12:00 |
13:57:36.45 |
-02:13:02.0 |
HIP 68210 |
7.37 |
| 2026-06-17 00:00 |
13:57:31.08 |
-02:13:00.0 |
HIP 68210 |
8.23 |
| 2026-06-17 12:00 |
13:57:25.88 |
-02:12:59.1 |
HIP 68210 |
9.16 |
| 2026-06-18 00:00 |
13:57:20.83 |
-02:12:59.3 |
HIP 68210 |
10.13 |
| 2026-06-18 12:00 |
13:57:15.94 |
-02:13:00.7 |
HIP 68210 |
11.12 |
| 2026-06-19 00:00 |
13:57:11.21 |
-02:13:03.1 |
HIP 68210 |
12.10 |
| 2026-06-19 12:00 |
13:57:06.64 |
-02:13:06.6 |
HIP 68210 |
13.08 |
| 2026-06-20 00:00 |
13:57:02.23 |
-02:13:11.1 |
HIP 68210 |
14.03 |
| 2026-06-20 12:00 |
13:56:57.98 |
-02:13:16.8 |
HIP 68210 |
14.97 |
| 2026-06-21 00:00 |
13:56:53.89 |
-02:13:23.5 |
HIP 68210 |
15.87 |
| 2026-06-21 12:00 |
13:56:49.96 |
-02:13:31.4 |
HIP 68210 |
16.75 |
| 2026-06-22 00:00 |
13:56:46.20 |
-02:13:40.3 |
HIP 68210 |
17.59 |