Comet Archive

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C/2016 A6 (PANSTARRS)

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

C/2016 A6 (PANSTARRS) · Magnitude (Full range)

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)
2026-02-03 00:00 01:56:28.51 -48:31:29.1 HIP 9108 10.44
2026-02-03 12:00 01:56:29.41 -48:30:25.2 HIP 9108 11.00
2026-02-04 00:00 01:56:30.37 -48:29:21.3 HIP 9108 11.62
2026-02-04 12:00 01:56:31.38 -48:28:17.4 HIP 9108 12.29
2026-02-05 00:00 01:56:32.46 -48:27:13.6 HIP 9108 13.02
2026-02-05 12:00 01:56:33.59 -48:26:09.9 HIP 9108 13.78
2026-02-06 00:00 01:56:34.77 -48:25:06.2 HIP 9108 14.58
2026-02-06 12:00 01:56:36.02 -48:24:02.6 HIP 9108 15.41
2026-02-07 00:00 01:56:37.32 -48:22:59.1 HIP 9108 16.26
2026-02-07 12:00 01:56:38.68 -48:21:55.6 HIP 9108 17.13
2026-02-08 00:00 01:56:40.09 -48:20:52.2 HIP 9108 18.02
2026-02-08 12:00 01:56:41.56 -48:19:49.0 HIP 9108 18.93
2026-02-09 00:00 01:56:43.08 -48:18:45.8 HIP 9108 19.85
2026-02-09 12:00 01:56:44.66 -48:17:42.7 HIP 9108 20.78
2026-02-10 00:00 01:56:46.29 -48:16:39.7 HIP 9108 21.72
2026-02-10 12:00 01:56:47.98 -48:15:36.8 HIP 9108 22.67
2026-02-11 00:00 01:56:49.73 -48:14:34.0 HIP 9108 23.63
2026-02-11 12:00 01:56:51.53 -48:13:31.4 HIP 9108 24.59
2026-02-12 00:00 01:56:53.38 -48:12:28.8 HIP 8994 24.97
2026-02-12 12:00 01:56:55.28 -48:11:26.4 HIP 8994 24.16
2026-02-13 00:00 01:56:57.24 -48:10:24.1 HIP 8994 23.38
2026-02-13 12:00 01:56:59.26 -48:09:22.0 HIP 8994 22.63
2026-02-14 00:00 01:57:01.32 -48:08:20.0 HIP 8994 21.92
2026-02-14 12:00 01:57:03.44 -48:07:18.1 HIP 8994 21.24
2026-02-15 00:00 01:57:05.61 -48:06:16.4 HIP 8994 20.61
2026-02-15 12:00 01:57:07.84 -48:05:14.8 HIP 8994 20.03
2026-02-16 00:00 01:57:10.11 -48:04:13.4 HIP 8994 19.50
2026-02-16 12:00 01:57:12.44 -48:03:12.1 HIP 8994 19.02
2026-02-17 00:00 01:57:14.82 -48:02:11.0 HIP 8994 18.61
2026-02-17 12:00 01:57:17.25 -48:01:10.1 HIP 8994 18.26
2026-02-18 00:00 01:57:19.73 -48:00:09.4 HIP 8994 17.98
2026-02-18 12:00 01:57:22.26 -47:59:08.8 HIP 9206 16.94
2026-02-19 00:00 01:57:24.84 -47:58:08.4 HIP 9206 15.89
2026-02-19 12:00 01:57:27.47 -47:57:08.2 HIP 9206 14.85
2026-02-20 00:00 01:57:30.14 -47:56:08.2 HIP 9206 13.80
2026-02-20 12:00 01:57:32.87 -47:55:08.4 HIP 9206 12.77
2026-02-21 00:00 01:57:35.65 -47:54:08.8 HIP 9206 11.74
2026-02-21 12:00 01:57:38.47 -47:53:09.4 HIP 9206 10.72
2026-02-22 00:00 01:57:41.34 -47:52:10.2 HIP 9206 9.71
2026-02-22 12:00 01:57:44.26 -47:51:11.2 HIP 9206 8.72
2026-02-23 00:00 01:57:47.23 -47:50:12.5 HIP 9206 7.76
2026-02-23 12:00 01:57:50.24 -47:49:13.9 HIP 9206 6.83
2026-02-24 00:00 01:57:53.30 -47:48:15.6 HIP 9206 5.95