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) |
| 2026-05-12 00:00 |
02:11:02.88 |
-46:32:39.9 |
HIP 10205 |
3.39 |
| 2026-05-12 12:00 |
02:11:08.48 |
-46:32:46.8 |
HIP 10205 |
2.71 |
| 2026-05-13 00:00 |
02:11:14.07 |
-46:32:54.3 |
HIP 10205 |
2.24 |
| 2026-05-13 12:00 |
02:11:19.64 |
-46:33:02.2 |
HIP 10205 |
2.13 |
| 2026-05-14 00:00 |
02:11:25.20 |
-46:33:10.6 |
HIP 10205 |
2.42 |
| 2026-05-14 12:00 |
02:11:30.74 |
-46:33:19.6 |
HIP 10205 |
3.01 |
| 2026-05-15 00:00 |
02:11:36.26 |
-46:33:29.0 |
HIP 10205 |
3.74 |
| 2026-05-15 12:00 |
02:11:41.77 |
-46:33:39.0 |
HIP 10205 |
4.56 |
| 2026-05-16 00:00 |
02:11:47.27 |
-46:33:49.5 |
HIP 10205 |
5.42 |
| 2026-05-16 12:00 |
02:11:52.74 |
-46:34:00.5 |
HIP 10205 |
6.30 |
| 2026-05-17 00:00 |
02:11:58.20 |
-46:34:12.0 |
HIP 10205 |
7.20 |
| 2026-05-17 12:00 |
02:12:03.64 |
-46:34:24.0 |
HIP 10205 |
8.11 |
| 2026-05-18 00:00 |
02:12:09.06 |
-46:34:36.5 |
HIP 10205 |
9.02 |
| 2026-05-18 12:00 |
02:12:14.47 |
-46:34:49.5 |
HIP 10205 |
9.94 |
| 2026-05-19 00:00 |
02:12:19.85 |
-46:35:03.1 |
HIP 10205 |
10.86 |
| 2026-05-19 12:00 |
02:12:25.21 |
-46:35:17.1 |
HIP 10205 |
11.78 |
| 2026-05-20 00:00 |
02:12:30.56 |
-46:35:31.7 |
HIP 10205 |
12.71 |
| 2026-05-20 12:00 |
02:12:35.88 |
-46:35:46.7 |
HIP 10278 |
13.45 |
| 2026-05-21 00:00 |
02:12:41.18 |
-46:36:02.3 |
HIP 10278 |
13.40 |
| 2026-05-21 12:00 |
02:12:46.47 |
-46:36:18.4 |
HIP 10278 |
13.42 |
| 2026-05-22 00:00 |
02:12:51.73 |
-46:36:34.9 |
HIP 10278 |
13.48 |
| 2026-05-22 12:00 |
02:12:56.96 |
-46:36:52.0 |
HIP 10278 |
13.61 |
| 2026-05-23 00:00 |
02:13:02.18 |
-46:37:09.6 |
HIP 10278 |
13.79 |
| 2026-05-23 12:00 |
02:13:07.37 |
-46:37:27.6 |
HIP 10278 |
14.02 |
| 2026-05-24 00:00 |
02:13:12.54 |
-46:37:46.2 |
HIP 10278 |
14.30 |
| 2026-05-24 12:00 |
02:13:17.69 |
-46:38:05.2 |
HIP 10278 |
14.62 |
| 2026-05-25 00:00 |
02:13:22.81 |
-46:38:24.8 |
HIP 10278 |
14.99 |
| 2026-05-25 12:00 |
02:13:27.91 |
-46:38:44.8 |
HIP 10278 |
15.40 |
| 2026-05-26 00:00 |
02:13:32.99 |
-46:39:05.3 |
HIP 10278 |
15.85 |
| 2026-05-26 12:00 |
02:13:38.04 |
-46:39:26.4 |
HIP 10278 |
16.32 |
| 2026-05-27 00:00 |
02:13:43.06 |
-46:39:47.9 |
HIP 10278 |
16.83 |
| 2026-05-27 12:00 |
02:13:48.06 |
-46:40:09.9 |
HIP 10278 |
17.37 |
| 2026-05-28 00:00 |
02:13:53.04 |
-46:40:32.3 |
HIP 10278 |
17.93 |
| 2026-05-28 12:00 |
02:13:57.98 |
-46:40:55.3 |
HIP 10278 |
18.51 |
| 2026-05-29 00:00 |
02:14:02.91 |
-46:41:18.8 |
HIP 10278 |
19.11 |
| 2026-05-29 12:00 |
02:14:07.80 |
-46:41:42.7 |
HIP 10278 |
19.73 |
| 2026-05-30 00:00 |
02:14:12.67 |
-46:42:07.1 |
HIP 10278 |
20.36 |
| 2026-05-30 12:00 |
02:14:17.51 |
-46:42:32.0 |
HIP 10278 |
21.01 |
| 2026-05-31 00:00 |
02:14:22.32 |
-46:42:57.4 |
HIP 10574 |
20.53 |
| 2026-05-31 12:00 |
02:14:27.11 |
-46:43:23.2 |
HIP 10574 |
19.61 |
| 2026-06-01 00:00 |
02:14:31.87 |
-46:43:49.5 |
HIP 10574 |
18.68 |
| 2026-06-01 12:00 |
02:14:36.59 |
-46:44:16.3 |
HIP 10574 |
17.75 |
| 2026-06-02 00:00 |
02:14:41.29 |
-46:44:43.6 |
HIP 10574 |
16.83 |