메타데이터
| 항목 |
값 |
| Designation |
C/2016 A6 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2015-11-05T22:12:03.853440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:21Z |
| Obs used |
42 |
| NEO |
- |
| M1 |
7.900 |
| K1 |
28.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-01-20.0000000 |
| e |
0.99059983 |
| q (au) |
2.412923 |
| a (au) |
256.689319 |
| i (deg) |
120.934185 |
| Ω (om, deg) |
300.253669 |
| ω (w, deg) |
141.118673 |
| M (ma, deg) |
0.017992 |
밝기
산란 + 전체 선형
$$
M_a = (16.450 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.450 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.764 |
| k |
0.800 |
| δ90 |
10.000 |
| 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) |
| 2026-03-26 00:00 |
02:02:08.07 |
-46:58:54.6 |
HIP 9652 |
41.69 |
| 2026-03-26 12:00 |
02:02:13.27 |
-46:58:16.2 |
HIP 9652 |
40.70 |
| 2026-03-27 00:00 |
02:02:18.48 |
-46:57:38.3 |
HIP 9652 |
39.72 |
| 2026-03-27 12:00 |
02:02:23.73 |
-46:57:00.7 |
HIP 9652 |
38.75 |
| 2026-03-28 00:00 |
02:02:28.99 |
-46:56:23.6 |
HIP 9652 |
37.79 |
| 2026-03-28 12:00 |
02:02:34.27 |
-46:55:46.9 |
HIP 9652 |
36.85 |
| 2026-03-29 00:00 |
02:02:39.58 |
-46:55:10.6 |
HIP 9652 |
35.91 |
| 2026-03-29 12:00 |
02:02:44.91 |
-46:54:34.7 |
HIP 9652 |
35.00 |
| 2026-03-30 00:00 |
02:02:50.25 |
-46:53:59.3 |
HIP 9652 |
34.09 |
| 2026-03-30 12:00 |
02:02:55.62 |
-46:53:24.2 |
HIP 9652 |
33.21 |
| 2026-03-31 00:00 |
02:03:01.01 |
-46:52:49.7 |
HIP 9652 |
32.34 |
| 2026-03-31 12:00 |
02:03:06.41 |
-46:52:15.5 |
HIP 9652 |
31.49 |
| 2026-04-01 00:00 |
02:03:11.84 |
-46:51:41.8 |
HIP 9652 |
30.67 |
| 2026-04-01 12:00 |
02:03:17.28 |
-46:51:08.5 |
HIP 9652 |
29.86 |
| 2026-04-02 00:00 |
02:03:22.74 |
-46:50:35.7 |
HIP 9652 |
29.08 |
| 2026-04-02 12:00 |
02:03:28.22 |
-46:50:03.3 |
HIP 9652 |
28.33 |
| 2026-04-03 00:00 |
02:03:33.71 |
-46:49:31.3 |
HIP 9652 |
27.60 |
| 2026-04-03 12:00 |
02:03:39.23 |
-46:48:59.8 |
HIP 9652 |
26.91 |
| 2026-04-04 00:00 |
02:03:44.76 |
-46:48:28.8 |
HIP 9652 |
26.25 |
| 2026-04-04 12:00 |
02:03:50.30 |
-46:47:58.1 |
HIP 9652 |
25.62 |
| 2026-04-05 00:00 |
02:03:55.86 |
-46:47:28.0 |
HIP 9652 |
25.04 |
| 2026-04-05 12:00 |
02:04:01.44 |
-46:46:58.2 |
HIP 9652 |
24.49 |
| 2026-04-06 00:00 |
02:04:07.03 |
-46:46:29.0 |
HIP 9652 |
23.99 |
| 2026-04-06 12:00 |
02:04:12.64 |
-46:46:00.2 |
HIP 9652 |
23.53 |
| 2026-04-07 00:00 |
02:04:18.26 |
-46:45:31.8 |
HIP 9652 |
23.13 |
| 2026-04-07 12:00 |
02:04:23.89 |
-46:45:03.9 |
HIP 9652 |
22.77 |
| 2026-04-08 00:00 |
02:04:29.54 |
-46:44:36.5 |
HIP 9652 |
22.47 |
| 2026-04-08 12:00 |
02:04:35.20 |
-46:44:09.5 |
HIP 9652 |
22.22 |
| 2026-04-09 00:00 |
02:04:40.87 |
-46:43:43.0 |
HIP 9846 |
21.88 |
| 2026-04-09 12:00 |
02:04:46.56 |
-46:43:16.9 |
HIP 9846 |
20.82 |
| 2026-04-10 00:00 |
02:04:52.26 |
-46:42:51.3 |
HIP 9846 |
19.76 |
| 2026-04-10 12:00 |
02:04:57.97 |
-46:42:26.2 |
HIP 9846 |
18.70 |
| 2026-04-11 00:00 |
02:05:03.69 |
-46:42:01.6 |
HIP 9846 |
17.64 |
| 2026-04-11 12:00 |
02:05:09.42 |
-46:41:37.4 |
HIP 9846 |
16.58 |
| 2026-04-12 00:00 |
02:05:15.16 |
-46:41:13.7 |
HIP 9846 |
15.52 |
| 2026-04-12 12:00 |
02:05:20.91 |
-46:40:50.5 |
HIP 9846 |
14.46 |
| 2026-04-13 00:00 |
02:05:26.67 |
-46:40:27.7 |
HIP 9846 |
13.40 |
| 2026-04-13 12:00 |
02:05:32.44 |
-46:40:05.5 |
HIP 9846 |
12.35 |
| 2026-04-14 00:00 |
02:05:38.22 |
-46:39:43.7 |
HIP 9846 |
11.30 |
| 2026-04-14 12:00 |
02:05:44.01 |
-46:39:22.4 |
HIP 9846 |
10.24 |
| 2026-04-15 00:00 |
02:05:49.80 |
-46:39:01.5 |
HIP 9846 |
9.19 |
| 2026-04-15 12:00 |
02:05:55.61 |
-46:38:41.2 |
HIP 9846 |
8.14 |
| 2026-04-16 00:00 |
02:06:01.42 |
-46:38:21.4 |
HIP 9846 |
7.09 |