메타데이터
| 항목 |
값 |
| Designation |
C/2014 W8 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2015-09-21T16:55:27.336000Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:03Z |
| Obs used |
32 |
| NEO |
- |
| M1 |
10.600 |
| K1 |
10.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2014-11-27.0000000 |
| e |
1.00113510 |
| q (au) |
4.898630 |
| a (au) |
-4315.589052 |
| i (deg) |
41.111029 |
| Ω (om, deg) |
224.558594 |
| ω (w, deg) |
230.783005 |
| M (ma, deg) |
-0.001038 |
밝기
산란 + 전체 선형
$$
M_a = (11.870 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.870 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.845 |
| 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) |
| 2026-06-01 00:00 |
14:29:12.41 |
-17:20:03.1 |
HIP 70801 |
16.73 |
| 2026-06-01 12:00 |
14:29:08.67 |
-17:19:36.1 |
HIP 70801 |
15.99 |
| 2026-06-02 00:00 |
14:29:04.95 |
-17:19:09.2 |
HIP 70801 |
15.29 |
| 2026-06-02 12:00 |
14:29:01.25 |
-17:18:42.3 |
HIP 70801 |
14.62 |
| 2026-06-03 00:00 |
14:28:57.58 |
-17:18:15.6 |
HIP 70801 |
13.99 |
| 2026-06-03 12:00 |
14:28:53.93 |
-17:17:48.9 |
HIP 70801 |
13.41 |
| 2026-06-04 00:00 |
14:28:50.31 |
-17:17:22.4 |
HIP 70801 |
12.87 |
| 2026-06-04 12:00 |
14:28:46.72 |
-17:16:56.0 |
HIP 70801 |
12.40 |
| 2026-06-05 00:00 |
14:28:43.15 |
-17:16:29.6 |
HIP 70801 |
11.98 |
| 2026-06-05 12:00 |
14:28:39.61 |
-17:16:03.4 |
HIP 70801 |
11.63 |
| 2026-06-06 00:00 |
14:28:36.10 |
-17:15:37.2 |
HIP 70801 |
11.34 |
| 2026-06-06 12:00 |
14:28:32.61 |
-17:15:11.2 |
HIP 70801 |
11.13 |
| 2026-06-07 00:00 |
14:28:29.16 |
-17:14:45.3 |
HIP 70801 |
11.00 |
| 2026-06-07 12:00 |
14:28:25.73 |
-17:14:19.5 |
HIP 70801 |
10.94 |
| 2026-06-08 00:00 |
14:28:22.32 |
-17:13:53.8 |
HIP 70801 |
10.96 |
| 2026-06-08 12:00 |
14:28:18.95 |
-17:13:28.2 |
HIP 70801 |
11.05 |
| 2026-06-09 00:00 |
14:28:15.61 |
-17:13:02.8 |
HIP 70801 |
11.21 |
| 2026-06-09 12:00 |
14:28:12.29 |
-17:12:37.4 |
HIP 70801 |
11.44 |
| 2026-06-10 00:00 |
14:28:09.01 |
-17:12:12.2 |
HIP 70801 |
11.73 |
| 2026-06-10 12:00 |
14:28:05.75 |
-17:11:47.1 |
HIP 70801 |
12.07 |
| 2026-06-11 00:00 |
14:28:02.53 |
-17:11:22.1 |
HIP 70801 |
12.46 |
| 2026-06-11 12:00 |
14:27:59.33 |
-17:10:57.3 |
HIP 70801 |
12.90 |
| 2026-06-12 00:00 |
14:27:56.17 |
-17:10:32.5 |
HIP 70801 |
13.37 |
| 2026-06-12 12:00 |
14:27:53.04 |
-17:10:08.0 |
HIP 70801 |
13.87 |
| 2026-06-13 00:00 |
14:27:49.93 |
-17:09:43.5 |
HIP 70801 |
14.40 |
| 2026-06-13 12:00 |
14:27:46.86 |
-17:09:19.2 |
HIP 70801 |
14.95 |
| 2026-06-14 00:00 |
14:27:43.82 |
-17:08:55.0 |
HIP 70801 |
15.53 |
| 2026-06-14 12:00 |
14:27:40.82 |
-17:08:30.9 |
HIP 70801 |
16.11 |
| 2026-06-15 00:00 |
14:27:37.84 |
-17:08:07.0 |
HIP 70801 |
16.71 |
| 2026-06-15 12:00 |
14:27:34.90 |
-17:07:43.2 |
HIP 70801 |
17.32 |
| 2026-06-16 00:00 |
14:27:31.99 |
-17:07:19.5 |
HIP 70801 |
17.94 |
| 2026-06-16 12:00 |
14:27:29.12 |
-17:06:56.0 |
HIP 70801 |
18.57 |
| 2026-06-17 00:00 |
14:27:26.27 |
-17:06:32.7 |
HIP 70801 |
19.20 |
| 2026-06-17 12:00 |
14:27:23.47 |
-17:06:09.5 |
HIP 70801 |
19.83 |
| 2026-06-18 00:00 |
14:27:20.69 |
-17:05:46.4 |
HIP 70801 |
20.46 |
| 2026-06-18 12:00 |
14:27:17.95 |
-17:05:23.5 |
HIP 70801 |
21.10 |
| 2026-06-19 00:00 |
14:27:15.24 |
-17:05:00.7 |
HIP 70801 |
21.73 |
| 2026-06-19 12:00 |
14:27:12.57 |
-17:04:38.1 |
HIP 70795 |
22.35 |
| 2026-06-20 00:00 |
14:27:09.94 |
-17:04:15.6 |
HIP 70795 |
22.85 |
| 2026-06-20 12:00 |
14:27:07.33 |
-17:03:53.3 |
HIP 70795 |
23.34 |
| 2026-06-21 00:00 |
14:27:04.77 |
-17:03:31.2 |
HIP 70795 |
23.85 |
| 2026-06-21 12:00 |
14:27:02.23 |
-17:03:09.2 |
HIP 70795 |
24.35 |
| 2026-06-22 00:00 |
14:26:59.74 |
-17:02:47.3 |
HIP 70795 |
24.86 |