메타데이터
| 항목 |
값 |
| Designation |
C/2014 W3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2014-02-27T04:51:52.917120Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:02Z |
| Obs used |
47 |
| NEO |
- |
| M1 |
8.900 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2015-03-21.0000000 |
| e |
1.00695932 |
| q (au) |
6.066200 |
| a (au) |
-871.665470 |
| i (deg) |
90.112871 |
| Ω (om, deg) |
286.373358 |
| ω (w, deg) |
158.916349 |
| M (ma, deg) |
0.014814 |
밝기
산란 + 전체 선형
$$
M_a = (11.948 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.948 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
1.000 |
| 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) |
| 2026-09-20 00:00 |
05:45:25.41 |
-76:29:04.2 |
HIP 27430 |
11.35 |
| 2026-09-20 12:00 |
05:45:23.92 |
-76:30:20.6 |
HIP 27430 |
11.09 |
| 2026-09-21 00:00 |
05:45:22.25 |
-76:31:37.0 |
HIP 27430 |
10.99 |
| 2026-09-21 12:00 |
05:45:20.41 |
-76:32:53.4 |
HIP 27430 |
11.05 |
| 2026-09-22 00:00 |
05:45:18.40 |
-76:34:09.7 |
HIP 27430 |
11.27 |
| 2026-09-22 12:00 |
05:45:16.21 |
-76:35:25.9 |
HIP 27430 |
11.63 |
| 2026-09-23 00:00 |
05:45:13.85 |
-76:36:42.1 |
HIP 26985 |
11.06 |
| 2026-09-23 12:00 |
05:45:11.31 |
-76:37:58.3 |
HIP 26985 |
9.92 |
| 2026-09-24 00:00 |
05:45:08.60 |
-76:39:14.4 |
HIP 26985 |
8.81 |
| 2026-09-24 12:00 |
05:45:05.71 |
-76:40:30.4 |
HIP 26985 |
7.74 |
| 2026-09-25 00:00 |
05:45:02.64 |
-76:41:46.4 |
HIP 26985 |
6.74 |
| 2026-09-25 12:00 |
05:44:59.40 |
-76:43:02.2 |
HIP 26985 |
5.85 |
| 2026-09-26 00:00 |
05:44:55.98 |
-76:44:18.0 |
HIP 26985 |
5.11 |
| 2026-09-26 12:00 |
05:44:52.37 |
-76:45:33.7 |
HIP 26985 |
4.60 |
| 2026-09-27 00:00 |
05:44:48.59 |
-76:46:49.3 |
HIP 26985 |
4.40 |
| 2026-09-27 12:00 |
05:44:44.63 |
-76:48:04.8 |
HIP 26985 |
4.56 |
| 2026-09-28 00:00 |
05:44:40.49 |
-76:49:20.2 |
HIP 26985 |
5.04 |
| 2026-09-28 12:00 |
05:44:36.16 |
-76:50:35.5 |
HIP 26985 |
5.77 |
| 2026-09-29 00:00 |
05:44:31.65 |
-76:51:50.7 |
HIP 26985 |
6.65 |
| 2026-09-29 12:00 |
05:44:26.96 |
-76:53:05.8 |
HIP 26985 |
7.64 |
| 2026-09-30 00:00 |
05:44:22.09 |
-76:54:20.7 |
HIP 26985 |
8.71 |
| 2026-09-30 12:00 |
05:44:17.03 |
-76:55:35.6 |
HIP 26985 |
9.82 |
| 2026-10-01 00:00 |
05:44:11.78 |
-76:56:50.2 |
HIP 26985 |
10.96 |
| 2026-10-01 12:00 |
05:44:06.36 |
-76:58:04.8 |
HIP 26985 |
12.12 |
| 2026-10-02 00:00 |
05:44:00.74 |
-76:59:19.2 |
HIP 26985 |
13.31 |
| 2026-10-02 12:00 |
05:43:54.94 |
-77:00:33.4 |
HIP 26985 |
14.50 |
| 2026-10-03 00:00 |
05:43:48.95 |
-77:01:47.5 |
HIP 26985 |
15.71 |
| 2026-10-03 12:00 |
05:43:42.77 |
-77:03:01.4 |
HIP 26985 |
16.93 |
| 2026-10-04 00:00 |
05:43:36.41 |
-77:04:15.2 |
HIP 26985 |
18.15 |
| 2026-10-04 12:00 |
05:43:29.85 |
-77:05:28.8 |
HIP 26985 |
19.37 |
| 2026-10-05 00:00 |
05:43:23.11 |
-77:06:42.2 |
HIP 26901 |
20.57 |
| 2026-10-05 12:00 |
05:43:16.17 |
-77:07:55.4 |
HIP 26901 |
19.31 |
| 2026-10-06 00:00 |
05:43:09.05 |
-77:09:08.5 |
HIP 26901 |
18.06 |
| 2026-10-06 12:00 |
05:43:01.73 |
-77:10:21.3 |
HIP 26901 |
16.82 |
| 2026-10-07 00:00 |
05:42:54.22 |
-77:11:33.9 |
HIP 26901 |
15.58 |
| 2026-10-07 12:00 |
05:42:46.52 |
-77:12:46.4 |
HIP 26901 |
14.36 |
| 2026-10-08 00:00 |
05:42:38.63 |
-77:13:58.6 |
HIP 26901 |
13.15 |
| 2026-10-08 12:00 |
05:42:30.55 |
-77:15:10.6 |
HIP 26901 |
11.96 |
| 2026-10-09 00:00 |
05:42:22.27 |
-77:16:22.3 |
HIP 26901 |
10.80 |
| 2026-10-09 12:00 |
05:42:13.80 |
-77:17:33.9 |
HIP 26901 |
9.66 |
| 2026-10-10 00:00 |
05:42:05.13 |
-77:18:45.2 |
HIP 26901 |
8.58 |
| 2026-10-10 12:00 |
05:41:56.28 |
-77:19:56.2 |
HIP 26901 |
7.57 |
| 2026-10-11 00:00 |
05:41:47.23 |
-77:21:07.0 |
HIP 26901 |
6.65 |