메타데이터
| 항목 |
값 |
| Designation |
C/2016 S1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2017-03-16T19:29:49.666560Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:26Z |
| Obs used |
127 |
| NEO |
- |
| M1 |
5.700 |
| K1 |
24.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-11-07.0000000 |
| e |
0.70884778 |
| q (au) |
2.411908 |
| a (au) |
8.284009 |
| i (deg) |
94.689671 |
| Ω (om, deg) |
227.538223 |
| ω (w, deg) |
273.611282 |
| M (ma, deg) |
354.633893 |
밝기
산란 + 전체 선형
$$
M_a = (9.482 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.482 |
| n |
6.000 |
| gf |
0.943 |
| gb |
-0.859 |
| k |
0.992 |
| δ90 |
9.996 |
| 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 |
16:15:51.69 |
+66:27:05.5 |
HIP 79600 |
9.20 |
| 2026-07-29 12:00 |
16:15:42.48 |
+66:25:33.7 |
HIP 79600 |
7.70 |
| 2026-07-30 00:00 |
16:15:33.44 |
+66:24:01.4 |
HIP 79600 |
6.37 |
| 2026-07-30 12:00 |
16:15:24.58 |
+66:22:28.5 |
HIP 79600 |
5.33 |
| 2026-07-31 00:00 |
16:15:15.89 |
+66:20:55.1 |
HIP 79600 |
4.77 |
| 2026-07-31 12:00 |
16:15:07.37 |
+66:19:21.2 |
HIP 79600 |
4.86 |
| 2026-08-01 00:00 |
16:14:59.02 |
+66:17:46.7 |
HIP 79600 |
5.57 |
| 2026-08-01 12:00 |
16:14:50.85 |
+66:16:11.8 |
HIP 79600 |
6.71 |
| 2026-08-02 00:00 |
16:14:42.85 |
+66:14:36.3 |
HIP 79600 |
8.09 |
| 2026-08-02 12:00 |
16:14:35.03 |
+66:13:00.4 |
HIP 79600 |
9.61 |
| 2026-08-03 00:00 |
16:14:27.38 |
+66:11:24.0 |
HIP 79600 |
11.22 |
| 2026-08-03 12:00 |
16:14:19.91 |
+66:09:47.1 |
HIP 79600 |
12.88 |
| 2026-08-04 00:00 |
16:14:12.61 |
+66:08:09.8 |
HIP 79600 |
14.57 |
| 2026-08-04 12:00 |
16:14:05.49 |
+66:06:32.0 |
HIP 79600 |
16.29 |
| 2026-08-05 00:00 |
16:13:58.54 |
+66:04:53.8 |
HIP 79600 |
18.02 |
| 2026-08-05 12:00 |
16:13:51.76 |
+66:03:15.1 |
HIP 79600 |
19.77 |
| 2026-08-06 00:00 |
16:13:45.16 |
+66:01:36.0 |
HIP 79600 |
21.52 |
| 2026-08-06 12:00 |
16:13:38.74 |
+65:59:56.5 |
HIP 79600 |
23.28 |
| 2026-08-07 00:00 |
16:13:32.49 |
+65:58:16.6 |
HIP 79600 |
25.05 |
| 2026-08-07 12:00 |
16:13:26.42 |
+65:56:36.3 |
HIP 79180 |
24.18 |
| 2026-08-08 00:00 |
16:13:20.52 |
+65:54:55.6 |
HIP 79180 |
23.19 |
| 2026-08-08 12:00 |
16:13:14.80 |
+65:53:14.5 |
HIP 79180 |
22.31 |
| 2026-08-09 00:00 |
16:13:09.26 |
+65:51:33.1 |
HIP 79180 |
21.56 |
| 2026-08-09 12:00 |
16:13:03.89 |
+65:49:51.3 |
HIP 79180 |
20.95 |
| 2026-08-10 00:00 |
16:12:58.70 |
+65:48:09.2 |
HIP 79180 |
20.49 |
| 2026-08-10 12:00 |
16:12:53.68 |
+65:46:26.7 |
HIP 79180 |
20.20 |
| 2026-08-11 00:00 |
16:12:48.84 |
+65:44:43.9 |
HIP 79180 |
20.09 |
| 2026-08-11 12:00 |
16:12:44.17 |
+65:43:00.7 |
HIP 79180 |
20.14 |
| 2026-08-12 00:00 |
16:12:39.69 |
+65:41:17.3 |
HIP 79180 |
20.38 |
| 2026-08-12 12:00 |
16:12:35.37 |
+65:39:33.5 |
HIP 79180 |
20.78 |
| 2026-08-13 00:00 |
16:12:31.24 |
+65:37:49.5 |
HIP 79180 |
21.34 |
| 2026-08-13 12:00 |
16:12:27.27 |
+65:36:05.2 |
HIP 79180 |
22.05 |
| 2026-08-14 00:00 |
16:12:23.49 |
+65:34:20.6 |
HIP 79180 |
22.89 |
| 2026-08-14 12:00 |
16:12:19.88 |
+65:32:35.8 |
HIP 79180 |
23.85 |
| 2026-08-15 00:00 |
16:12:16.44 |
+65:30:50.7 |
HIP 79624 |
23.01 |
| 2026-08-15 12:00 |
16:12:13.18 |
+65:29:05.4 |
HIP 79624 |
22.08 |
| 2026-08-16 00:00 |
16:12:10.09 |
+65:27:19.8 |
HIP 79624 |
21.25 |
| 2026-08-16 12:00 |
16:12:07.18 |
+65:25:34.0 |
HIP 79624 |
20.52 |
| 2026-08-17 00:00 |
16:12:04.44 |
+65:23:48.1 |
HIP 79624 |
19.91 |
| 2026-08-17 12:00 |
16:12:01.87 |
+65:22:01.9 |
HIP 79624 |
19.43 |
| 2026-08-18 00:00 |
16:11:59.48 |
+65:20:15.5 |
HIP 79624 |
19.09 |
| 2026-08-18 12:00 |
16:11:57.26 |
+65:18:29.0 |
HIP 79624 |
18.90 |
| 2026-08-19 00:00 |
16:11:55.21 |
+65:16:42.2 |
HIP 79624 |
18.86 |