P/2017 W3 (Gibbs)
메타데이터
| 항목 |
값 |
| Designation |
P/2017 W3 (Gibbs) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2018-02-25T02:11:14.487360Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:38Z |
| Obs used |
142 |
| NEO |
- |
| M1 |
10.500 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2018-02-01.0000000 |
| e |
0.50387336 |
| q (au) |
3.837297 |
| a (au) |
7.734510 |
| i (deg) |
18.316724 |
| Ω (om, deg) |
210.753463 |
| ω (w, deg) |
326.464054 |
| M (ma, deg) |
358.896145 |
밝기
산란 + 전체 선형
$$
M_a = (14.129 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.129 |
| n |
2.000 |
| gf |
0.980 |
| gb |
-0.500 |
| k |
0.803 |
| δ90 |
2.051 |
| 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) |
| 2026-02-03 00:00 |
22:18:06.93 |
+03:31:26.2 |
HIP 109947 |
34.62 |
| 2026-02-03 12:00 |
22:18:17.88 |
+03:32:09.9 |
HIP 110163 |
37.36 |
| 2026-02-04 00:00 |
22:18:28.85 |
+03:32:53.9 |
HIP 110163 |
36.13 |
| 2026-02-04 12:00 |
22:18:39.84 |
+03:33:38.4 |
HIP 110163 |
35.07 |
| 2026-02-05 00:00 |
22:18:50.85 |
+03:34:23.3 |
HIP 110163 |
34.20 |
| 2026-02-05 12:00 |
22:19:01.87 |
+03:35:08.5 |
HIP 110163 |
33.55 |
| 2026-02-06 00:00 |
22:19:12.91 |
+03:35:54.2 |
HIP 110163 |
33.13 |
| 2026-02-06 12:00 |
22:19:23.97 |
+03:36:40.3 |
HIP 110163 |
32.94 |
| 2026-02-07 00:00 |
22:19:35.04 |
+03:37:26.7 |
HIP 110163 |
33.00 |
| 2026-02-07 12:00 |
22:19:46.13 |
+03:38:13.5 |
HIP 110163 |
33.31 |
| 2026-02-08 00:00 |
22:19:57.23 |
+03:39:00.8 |
HIP 110385 |
32.05 |
| 2026-02-08 12:00 |
22:20:08.35 |
+03:39:48.4 |
HIP 110385 |
30.68 |
| 2026-02-09 00:00 |
22:20:19.48 |
+03:40:36.4 |
HIP 110385 |
29.55 |
| 2026-02-09 12:00 |
22:20:30.62 |
+03:41:24.7 |
HIP 110385 |
28.66 |
| 2026-02-10 00:00 |
22:20:41.78 |
+03:42:13.5 |
HIP 110385 |
28.05 |
| 2026-02-10 12:00 |
22:20:52.95 |
+03:43:02.6 |
HIP 110385 |
27.74 |
| 2026-02-11 00:00 |
22:21:04.13 |
+03:43:52.1 |
HIP 110385 |
27.73 |
| 2026-02-11 12:00 |
22:21:15.32 |
+03:44:41.9 |
HIP 110385 |
28.03 |
| 2026-02-12 00:00 |
22:21:26.52 |
+03:45:32.1 |
HIP 110385 |
28.64 |
| 2026-02-12 12:00 |
22:21:37.73 |
+03:46:22.7 |
HIP 110527 |
28.40 |
| 2026-02-13 00:00 |
22:21:48.96 |
+03:47:13.6 |
HIP 110527 |
25.50 |
| 2026-02-13 12:00 |
22:22:00.19 |
+03:48:04.9 |
HIP 110527 |
22.60 |
| 2026-02-14 00:00 |
22:22:11.42 |
+03:48:56.6 |
HIP 110527 |
19.71 |
| 2026-02-14 12:00 |
22:22:22.67 |
+03:49:48.6 |
HIP 110527 |
16.83 |
| 2026-02-15 00:00 |
22:22:33.92 |
+03:50:40.9 |
HIP 110527 |
13.97 |
| 2026-02-15 12:00 |
22:22:45.19 |
+03:51:33.6 |
HIP 110527 |
11.15 |
| 2026-02-16 00:00 |
22:22:56.45 |
+03:52:26.6 |
HIP 110527 |
8.42 |
| 2026-02-16 12:00 |
22:23:07.73 |
+03:53:20.0 |
HIP 110527 |
5.89 |
| 2026-02-17 00:00 |
22:23:19.00 |
+03:54:13.6 |
HIP 110527 |
4.00 |
| 2026-02-17 12:00 |
22:23:30.29 |
+03:55:07.7 |
HIP 110527 |
3.84 |
| 2026-02-18 00:00 |
22:23:41.57 |
+03:56:02.0 |
HIP 110527 |
5.56 |
| 2026-02-18 12:00 |
22:23:52.86 |
+03:56:56.7 |
HIP 110527 |
8.05 |
| 2026-02-19 00:00 |
22:24:04.15 |
+03:57:51.7 |
HIP 110605 |
10.51 |
| 2026-02-19 12:00 |
22:24:15.45 |
+03:58:47.0 |
HIP 110605 |
10.13 |
| 2026-02-20 00:00 |
22:24:26.75 |
+03:59:42.6 |
HIP 110605 |
10.61 |
| 2026-02-20 12:00 |
22:24:38.04 |
+04:00:38.5 |
HIP 110605 |
11.83 |
| 2026-02-21 00:00 |
22:24:49.34 |
+04:01:34.8 |
HIP 110605 |
13.61 |
| 2026-02-21 12:00 |
22:25:00.64 |
+04:02:31.3 |
HIP 110605 |
15.76 |
| 2026-02-22 00:00 |
22:25:11.94 |
+04:03:28.1 |
HIP 110605 |
18.15 |
| 2026-02-22 12:00 |
22:25:23.23 |
+04:04:25.2 |
HIP 110605 |
20.69 |
| 2026-02-23 00:00 |
22:25:34.53 |
+04:05:22.7 |
HIP 110605 |
23.34 |
| 2026-02-23 12:00 |
22:25:45.82 |
+04:06:20.4 |
HIP 110785 |
21.51 |
| 2026-02-24 00:00 |
22:25:57.11 |
+04:07:18.4 |
HIP 110785 |
19.13 |