메타데이터
| 항목 |
값 |
| Designation |
C/2015 W1 (Gibbs) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2016-05-17T04:39:36.486720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:17Z |
| Obs used |
355 |
| NEO |
- |
| M1 |
12.700 |
| K1 |
9.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-01-02.0000000 |
| e |
1.00128700 |
| q (au) |
2.231883 |
| a (au) |
-1734.174037 |
| i (deg) |
87.318151 |
| Ω (om, deg) |
114.314858 |
| ω (w, deg) |
48.113799 |
| M (ma, deg) |
-0.001859 |
밝기
산란 + 전체 선형
$$
M_a = (14.313 + 2.054\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.313 |
| n |
2.054 |
| gf |
0.983 |
| gb |
-0.916 |
| k |
0.999 |
| δ90 |
1.000 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
19:56:42.09 |
-34:27:41.1 |
HIP 98184 |
8.15 |
| 2026-07-29 12:00 |
19:56:36.38 |
-34:27:58.4 |
HIP 98184 |
8.79 |
| 2026-07-30 00:00 |
19:56:30.68 |
-34:28:15.5 |
HIP 98184 |
9.54 |
| 2026-07-30 12:00 |
19:56:24.99 |
-34:28:32.3 |
HIP 98184 |
10.38 |
| 2026-07-31 00:00 |
19:56:19.31 |
-34:28:49.0 |
HIP 98184 |
11.29 |
| 2026-07-31 12:00 |
19:56:13.64 |
-34:29:05.5 |
HIP 98184 |
12.24 |
| 2026-08-01 00:00 |
19:56:07.98 |
-34:29:21.8 |
HIP 98184 |
13.24 |
| 2026-08-01 12:00 |
19:56:02.33 |
-34:29:37.9 |
HIP 98042 |
13.78 |
| 2026-08-02 00:00 |
19:55:56.69 |
-34:29:53.8 |
HIP 98042 |
12.87 |
| 2026-08-02 12:00 |
19:55:51.07 |
-34:30:09.5 |
HIP 98042 |
12.02 |
| 2026-08-03 00:00 |
19:55:45.46 |
-34:30:25.1 |
HIP 98042 |
11.24 |
| 2026-08-03 12:00 |
19:55:39.86 |
-34:30:40.4 |
HIP 98042 |
10.54 |
| 2026-08-04 00:00 |
19:55:34.27 |
-34:30:55.6 |
HIP 98042 |
9.93 |
| 2026-08-04 12:00 |
19:55:28.70 |
-34:31:10.5 |
HIP 98042 |
9.43 |
| 2026-08-05 00:00 |
19:55:23.14 |
-34:31:25.2 |
HIP 98042 |
9.06 |
| 2026-08-05 12:00 |
19:55:17.60 |
-34:31:39.8 |
HIP 98042 |
8.83 |
| 2026-08-06 00:00 |
19:55:12.07 |
-34:31:54.1 |
HIP 98042 |
8.76 |
| 2026-08-06 12:00 |
19:55:06.56 |
-34:32:08.3 |
HIP 98042 |
8.84 |
| 2026-08-07 00:00 |
19:55:01.07 |
-34:32:22.3 |
HIP 98042 |
9.08 |
| 2026-08-07 12:00 |
19:54:55.59 |
-34:32:36.0 |
HIP 97946 |
8.32 |
| 2026-08-08 00:00 |
19:54:50.13 |
-34:32:49.6 |
HIP 97946 |
7.42 |
| 2026-08-08 12:00 |
19:54:44.68 |
-34:33:02.9 |
HIP 97946 |
6.60 |
| 2026-08-09 00:00 |
19:54:39.26 |
-34:33:16.1 |
HIP 97946 |
5.89 |
| 2026-08-09 12:00 |
19:54:33.85 |
-34:33:29.0 |
HIP 97946 |
5.33 |
| 2026-08-10 00:00 |
19:54:28.46 |
-34:33:41.8 |
HIP 97946 |
4.97 |
| 2026-08-10 12:00 |
19:54:23.09 |
-34:33:54.3 |
HIP 97946 |
4.85 |
| 2026-08-11 00:00 |
19:54:17.75 |
-34:34:06.7 |
HIP 97946 |
4.98 |
| 2026-08-11 12:00 |
19:54:12.42 |
-34:34:18.8 |
HIP 97946 |
5.34 |
| 2026-08-12 00:00 |
19:54:07.11 |
-34:34:30.8 |
HIP 97946 |
5.89 |
| 2026-08-12 12:00 |
19:54:01.83 |
-34:34:42.5 |
HIP 97946 |
6.58 |
| 2026-08-13 00:00 |
19:53:56.56 |
-34:34:54.0 |
HIP 97946 |
7.37 |
| 2026-08-13 12:00 |
19:53:51.32 |
-34:35:05.4 |
HIP 97946 |
8.22 |
| 2026-08-14 00:00 |
19:53:46.10 |
-34:35:16.5 |
HIP 97946 |
9.12 |
| 2026-08-14 12:00 |
19:53:40.91 |
-34:35:27.4 |
HIP 97946 |
10.05 |
| 2026-08-15 00:00 |
19:53:35.74 |
-34:35:38.1 |
HIP 97946 |
11.01 |
| 2026-08-15 12:00 |
19:53:30.59 |
-34:35:48.6 |
HIP 97946 |
11.97 |
| 2026-08-16 00:00 |
19:53:25.47 |
-34:35:58.9 |
HIP 97946 |
12.95 |
| 2026-08-16 12:00 |
19:53:20.37 |
-34:36:09.0 |
HIP 97946 |
13.94 |
| 2026-08-17 00:00 |
19:53:15.30 |
-34:36:18.9 |
HIP 97946 |
14.93 |
| 2026-08-17 12:00 |
19:53:10.26 |
-34:36:28.6 |
HIP 97946 |
15.92 |
| 2026-08-18 00:00 |
19:53:05.24 |
-34:36:38.1 |
HIP 97946 |
16.91 |
| 2026-08-18 12:00 |
19:53:00.25 |
-34:36:47.4 |
HIP 97946 |
17.91 |
| 2026-08-19 00:00 |
19:52:55.28 |
-34:36:56.4 |
HIP 97946 |
18.90 |