P/2016 G1 (PANSTARRS)
메타데이터
| 항목 |
값 |
| Designation |
P/2016 G1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2017-01-26T04:39:52.557120Z |
| Orbit solution date (soln_date, UTC) |
2021-08-06T00:42:46Z |
| Obs used |
147 |
| NEO |
- |
| M1 |
16.100 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-04-30.0000000 |
| e |
0.21010208 |
| q (au) |
2.040494 |
| a (au) |
2.583238 |
| i (deg) |
10.967835 |
| Ω (om, deg) |
204.074723 |
| ω (w, deg) |
111.280022 |
| M (ma, deg) |
295.621914 |
밝기
산란 + 전체 선형
$$
M_a = (15.642 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
15.642 |
| n |
2.000 |
| gf |
0.800 |
| gb |
-0.903 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
01:14:59.61 |
+04:47:38.6 |
HIP 5828 |
12.39 |
| 2026-02-03 12:00 |
01:15:44.32 |
+04:51:10.7 |
HIP 5969 |
19.29 |
| 2026-02-04 00:00 |
01:16:29.12 |
+04:54:43.3 |
HIP 5969 |
9.43 |
| 2026-02-04 12:00 |
01:17:14.00 |
+04:58:16.3 |
HIP 5969 |
8.93 |
| 2026-02-05 00:00 |
01:17:58.96 |
+05:01:49.7 |
HIP 5969 |
18.61 |
| 2026-02-05 12:00 |
01:18:44.00 |
+05:05:23.5 |
HIP 6142 |
26.25 |
| 2026-02-06 00:00 |
01:19:29.12 |
+05:08:57.8 |
HIP 6069 |
30.87 |
| 2026-02-06 12:00 |
01:20:14.33 |
+05:12:32.5 |
HIP 6416 |
32.24 |
| 2026-02-07 00:00 |
01:20:59.61 |
+05:16:07.5 |
HIP 6416 |
20.89 |
| 2026-02-07 12:00 |
01:21:44.97 |
+05:19:42.9 |
HIP 6416 |
10.63 |
| 2026-02-08 00:00 |
01:22:30.41 |
+05:23:18.7 |
HIP 6416 |
8.41 |
| 2026-02-08 12:00 |
01:23:15.94 |
+05:26:54.9 |
HIP 6525 |
11.84 |
| 2026-02-09 00:00 |
01:24:01.53 |
+05:30:31.3 |
HIP 6525 |
12.22 |
| 2026-02-09 12:00 |
01:24:47.21 |
+05:34:08.1 |
HIP 6638 |
8.69 |
| 2026-02-10 00:00 |
01:25:32.96 |
+05:37:45.3 |
HIP 6638 |
12.07 |
| 2026-02-10 12:00 |
01:26:18.79 |
+05:41:22.7 |
HIP 6638 |
22.41 |
| 2026-02-11 00:00 |
01:27:04.69 |
+05:45:00.4 |
HIP 6815 |
25.37 |
| 2026-02-11 12:00 |
01:27:50.67 |
+05:48:38.4 |
HIP 6815 |
27.59 |
| 2026-02-12 00:00 |
01:28:36.73 |
+05:52:16.6 |
HIP 7007 |
28.57 |
| 2026-02-12 12:00 |
01:29:22.86 |
+05:55:55.1 |
HIP 7007 |
17.45 |
| 2026-02-13 00:00 |
01:30:09.06 |
+05:59:33.9 |
HIP 7007 |
9.08 |
| 2026-02-13 12:00 |
01:30:55.33 |
+06:03:12.9 |
HIP 7046 |
4.97 |
| 2026-02-14 00:00 |
01:31:41.68 |
+06:06:52.1 |
HIP 7046 |
15.34 |
| 2026-02-14 12:00 |
01:32:28.10 |
+06:10:31.5 |
HIP 7046 |
27.19 |
| 2026-02-15 00:00 |
01:33:14.59 |
+06:14:11.1 |
HIP 7259 |
20.32 |
| 2026-02-15 12:00 |
01:34:01.15 |
+06:17:50.9 |
HIP 7259 |
17.63 |
| 2026-02-16 00:00 |
01:34:47.78 |
+06:21:30.8 |
HIP 7352 |
13.68 |
| 2026-02-16 12:00 |
01:35:34.48 |
+06:25:10.9 |
HIP 7454 |
7.29 |
| 2026-02-17 00:00 |
01:36:21.25 |
+06:28:51.1 |
HIP 7454 |
7.70 |
| 2026-02-17 12:00 |
01:37:08.09 |
+06:32:31.5 |
HIP 7502 |
12.49 |
| 2026-02-18 00:00 |
01:37:55.00 |
+06:36:12.0 |
HIP 7502 |
19.56 |
| 2026-02-18 12:00 |
01:38:41.97 |
+06:39:52.6 |
HIP 7774 |
26.32 |
| 2026-02-19 00:00 |
01:39:29.01 |
+06:43:33.3 |
HIP 7774 |
22.15 |
| 2026-02-19 12:00 |
01:40:16.11 |
+06:47:14.0 |
HIP 7803 |
18.06 |
| 2026-02-20 00:00 |
01:41:03.28 |
+06:50:54.8 |
HIP 7803 |
17.36 |
| 2026-02-20 12:00 |
01:41:50.52 |
+06:54:35.7 |
HIP 7803 |
24.04 |
| 2026-02-21 00:00 |
01:42:37.81 |
+06:58:16.6 |
HIP 8120 |
26.74 |
| 2026-02-21 12:00 |
01:43:25.17 |
+07:01:57.6 |
HIP 8120 |
14.46 |
| 2026-02-22 00:00 |
01:44:12.60 |
+07:05:38.5 |
HIP 8120 |
2.62 |
| 2026-02-22 12:00 |
01:45:00.08 |
+07:09:19.5 |
HIP 8120 |
10.43 |
| 2026-02-23 00:00 |
01:45:47.62 |
+07:13:00.4 |
HIP 8120 |
22.71 |
| 2026-02-23 12:00 |
01:46:35.23 |
+07:16:41.3 |
HIP 8319 |
20.73 |
| 2026-02-24 00:00 |
01:47:22.89 |
+07:20:22.2 |
HIP 8319 |
21.76 |