메타데이터
| 항목 |
값 |
| Designation |
C/2016 N6 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2018-07-18T04:53:54.179520Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:26Z |
| Obs used |
3071 |
| NEO |
- |
| M1 |
6.800 |
| K1 |
10.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2018-02-01.0000000 |
| e |
0.99865186 |
| q (au) |
2.669116 |
| a (au) |
1979.851996 |
| i (deg) |
105.830421 |
| Ω (om, deg) |
298.977675 |
| ω (w, deg) |
162.803199 |
| M (ma, deg) |
359.998129 |
밝기
산란 + 전체 선형
$$
M_a = (9.902 + 3.333\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.902 |
| n |
3.333 |
| gf |
1.000 |
| gb |
-0.687 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2016-06-27 |
2016-10-28 |
+38.9146 |
-31.451 |
| 2016-10-28 |
2018-06-20 |
+1.1594 |
-0.936 |
| 2018-08-28 |
2019-01-14 |
+13.3133 |
-6.770 |
| 2019-01-14 |
2020-12-12 |
-0.7531 |
+0.155 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
00:37:11.61 |
-64:04:25.4 |
HIP 2933 |
15.21 |
| 2026-07-29 12:00 |
00:37:04.41 |
-64:05:43.0 |
HIP 2933 |
16.53 |
| 2026-07-30 00:00 |
00:36:57.10 |
-64:07:00.4 |
HIP 2933 |
17.88 |
| 2026-07-30 12:00 |
00:36:49.69 |
-64:08:17.5 |
HIP 2933 |
19.25 |
| 2026-07-31 00:00 |
00:36:42.18 |
-64:09:34.4 |
HIP 2933 |
20.64 |
| 2026-07-31 12:00 |
00:36:34.56 |
-64:10:51.1 |
HIP 2933 |
22.05 |
| 2026-08-01 00:00 |
00:36:26.83 |
-64:12:07.5 |
HIP 2933 |
23.47 |
| 2026-08-01 12:00 |
00:36:19.01 |
-64:13:23.6 |
HIP 2933 |
24.90 |
| 2026-08-02 00:00 |
00:36:11.07 |
-64:14:39.4 |
HIP 2933 |
26.34 |
| 2026-08-02 12:00 |
00:36:03.04 |
-64:15:55.0 |
HIP 2933 |
27.79 |
| 2026-08-03 00:00 |
00:35:54.90 |
-64:17:10.2 |
HIP 2614 |
28.84 |
| 2026-08-03 12:00 |
00:35:46.66 |
-64:18:25.2 |
HIP 2869 |
28.60 |
| 2026-08-04 00:00 |
00:35:38.32 |
-64:19:39.8 |
HIP 2869 |
27.50 |
| 2026-08-04 12:00 |
00:35:29.87 |
-64:20:54.2 |
HIP 2869 |
26.46 |
| 2026-08-05 00:00 |
00:35:21.33 |
-64:22:08.2 |
HIP 2869 |
25.48 |
| 2026-08-05 12:00 |
00:35:12.68 |
-64:23:22.0 |
HIP 2869 |
24.56 |
| 2026-08-06 00:00 |
00:35:03.93 |
-64:24:35.3 |
HIP 2869 |
23.72 |
| 2026-08-06 12:00 |
00:34:55.08 |
-64:25:48.4 |
HIP 2869 |
22.95 |
| 2026-08-07 00:00 |
00:34:46.12 |
-64:27:01.1 |
HIP 2869 |
22.28 |
| 2026-08-07 12:00 |
00:34:37.07 |
-64:28:13.4 |
HIP 2869 |
21.71 |
| 2026-08-08 00:00 |
00:34:27.92 |
-64:29:25.4 |
HIP 2869 |
21.24 |
| 2026-08-08 12:00 |
00:34:18.67 |
-64:30:37.1 |
HIP 2869 |
20.89 |
| 2026-08-09 00:00 |
00:34:09.32 |
-64:31:48.3 |
HIP 2869 |
20.66 |
| 2026-08-09 12:00 |
00:33:59.87 |
-64:32:59.2 |
HIP 2869 |
20.56 |
| 2026-08-10 00:00 |
00:33:50.32 |
-64:34:09.7 |
HIP 2869 |
20.59 |
| 2026-08-10 12:00 |
00:33:40.68 |
-64:35:19.8 |
HIP 2869 |
20.74 |
| 2026-08-11 00:00 |
00:33:30.94 |
-64:36:29.5 |
HIP 2869 |
21.02 |
| 2026-08-11 12:00 |
00:33:21.10 |
-64:37:38.8 |
HIP 2869 |
21.42 |
| 2026-08-12 00:00 |
00:33:11.16 |
-64:38:47.6 |
HIP 2869 |
21.94 |
| 2026-08-12 12:00 |
00:33:01.13 |
-64:39:56.1 |
HIP 2869 |
22.56 |
| 2026-08-13 00:00 |
00:32:51.01 |
-64:41:04.1 |
HIP 2869 |
23.29 |
| 2026-08-13 12:00 |
00:32:40.79 |
-64:42:11.7 |
HIP 2869 |
24.10 |
| 2026-08-14 00:00 |
00:32:30.48 |
-64:43:18.8 |
HIP 2869 |
24.99 |
| 2026-08-14 12:00 |
00:32:20.08 |
-64:44:25.5 |
HIP 2234 |
25.64 |
| 2026-08-15 00:00 |
00:32:09.58 |
-64:45:31.7 |
HIP 2234 |
24.57 |
| 2026-08-15 12:00 |
00:31:58.99 |
-64:46:37.5 |
HIP 2234 |
23.54 |
| 2026-08-16 00:00 |
00:31:48.32 |
-64:47:42.8 |
HIP 2234 |
22.57 |
| 2026-08-16 12:00 |
00:31:37.55 |
-64:48:47.6 |
HIP 2234 |
21.66 |
| 2026-08-17 00:00 |
00:31:26.69 |
-64:49:51.9 |
HIP 2234 |
20.82 |
| 2026-08-17 12:00 |
00:31:15.75 |
-64:50:55.7 |
HIP 2234 |
20.05 |
| 2026-08-18 00:00 |
00:31:04.71 |
-64:51:59.1 |
HIP 2234 |
19.38 |
| 2026-08-18 12:00 |
00:30:53.60 |
-64:53:01.9 |
HIP 2234 |
18.80 |
| 2026-08-19 00:00 |
00:30:42.39 |
-64:54:04.2 |
HIP 2234 |
18.33 |