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) |
| 2026-06-01 00:00 |
04:32:02.87 |
+16:13:46.7 |
HIP 21053 |
18.91 |
| 2026-06-01 12:00 |
04:32:54.63 |
+16:14:58.0 |
HIP 21257 |
11.33 |
| 2026-06-02 00:00 |
04:33:46.38 |
+16:16:08.0 |
HIP 21257 |
3.83 |
| 2026-06-02 12:00 |
04:34:38.10 |
+16:17:16.9 |
HIP 21257 |
14.56 |
| 2026-06-03 00:00 |
04:35:29.81 |
+16:18:24.5 |
HIP 21421 |
13.61 |
| 2026-06-03 12:00 |
04:36:21.50 |
+16:19:31.0 |
HIP 21421 |
12.74 |
| 2026-06-04 00:00 |
04:37:13.16 |
+16:20:36.2 |
HIP 21421 |
21.19 |
| 2026-06-04 12:00 |
04:38:04.81 |
+16:21:40.3 |
HIP 21588 |
19.70 |
| 2026-06-05 00:00 |
04:38:56.44 |
+16:22:43.1 |
HIP 21751 |
18.33 |
| 2026-06-05 12:00 |
04:39:48.04 |
+16:23:44.8 |
HIP 21751 |
5.92 |
| 2026-06-06 00:00 |
04:40:39.62 |
+16:24:45.2 |
HIP 21751 |
6.51 |
| 2026-06-06 12:00 |
04:41:31.19 |
+16:25:44.4 |
HIP 21762 |
16.57 |
| 2026-06-07 00:00 |
04:42:22.72 |
+16:26:42.4 |
HIP 21912 |
6.57 |
| 2026-06-07 12:00 |
04:43:14.24 |
+16:27:39.2 |
HIP 21912 |
7.93 |
| 2026-06-08 00:00 |
04:44:05.73 |
+16:28:34.7 |
HIP 21912 |
19.73 |
| 2026-06-08 12:00 |
04:44:57.20 |
+16:29:29.1 |
HIP 22225 |
29.22 |
| 2026-06-09 00:00 |
04:45:48.65 |
+16:30:22.2 |
HIP 22225 |
19.05 |
| 2026-06-09 12:00 |
04:46:40.07 |
+16:31:14.1 |
HIP 22225 |
13.33 |
| 2026-06-10 00:00 |
04:47:31.46 |
+16:32:04.8 |
HIP 22225 |
17.24 |
| 2026-06-10 12:00 |
04:48:22.83 |
+16:32:54.3 |
HIP 22347 |
6.79 |
| 2026-06-11 00:00 |
04:49:14.17 |
+16:33:42.5 |
HIP 22347 |
9.01 |
| 2026-06-11 12:00 |
04:50:05.49 |
+16:34:29.5 |
HIP 22347 |
20.49 |
| 2026-06-12 00:00 |
04:50:56.77 |
+16:35:15.3 |
HIP 22524 |
22.71 |
| 2026-06-12 12:00 |
04:51:48.03 |
+16:35:59.9 |
HIP 22524 |
27.38 |
| 2026-06-13 00:00 |
04:52:39.26 |
+16:36:43.2 |
HIP 22740 |
17.82 |
| 2026-06-13 12:00 |
04:53:30.46 |
+16:37:25.3 |
HIP 22740 |
11.91 |
| 2026-06-14 00:00 |
04:54:21.63 |
+16:38:06.1 |
HIP 22740 |
16.36 |
| 2026-06-14 12:00 |
04:55:12.77 |
+16:38:45.8 |
HIP 22846 |
16.16 |
| 2026-06-15 00:00 |
04:56:03.87 |
+16:39:24.2 |
HIP 22990 |
11.44 |
| 2026-06-15 12:00 |
04:56:54.95 |
+16:40:01.3 |
HIP 22990 |
4.42 |
| 2026-06-16 00:00 |
04:57:45.99 |
+16:40:37.3 |
HIP 22990 |
14.42 |
| 2026-06-16 12:00 |
04:58:36.99 |
+16:41:12.0 |
HIP 23227 |
20.14 |
| 2026-06-17 00:00 |
04:59:27.96 |
+16:41:45.4 |
HIP 23227 |
10.02 |
| 2026-06-17 12:00 |
05:00:18.90 |
+16:42:17.6 |
HIP 23227 |
9.68 |
| 2026-06-18 00:00 |
05:01:09.79 |
+16:42:48.6 |
HIP 23227 |
19.62 |
| 2026-06-18 12:00 |
05:02:00.65 |
+16:43:18.4 |
HIP 23227 |
31.20 |
| 2026-06-19 00:00 |
05:02:51.48 |
+16:43:46.9 |
HIP 23574 |
29.58 |
| 2026-06-19 12:00 |
05:03:42.26 |
+16:44:14.2 |
HIP 23574 |
23.91 |
| 2026-06-20 00:00 |
05:04:33.01 |
+16:44:40.2 |
HIP 23574 |
23.77 |
| 2026-06-20 12:00 |
05:05:23.71 |
+16:45:05.0 |
HIP 23807 |
23.82 |
| 2026-06-21 00:00 |
05:06:14.38 |
+16:45:28.6 |
HIP 23807 |
12.00 |
| 2026-06-21 12:00 |
05:07:05.00 |
+16:45:50.9 |
HIP 23810 |
3.45 |
| 2026-06-22 00:00 |
05:07:55.59 |
+16:46:12.1 |
HIP 23810 |
13.11 |