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 |
0.999 |
| 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) |
| 2026-05-12 00:00 |
04:57:30.40 |
-73:37:36.9 |
HIP 22891 |
11.98 |
| 2026-05-12 12:00 |
04:57:44.14 |
-73:37:17.0 |
HIP 22891 |
12.92 |
| 2026-05-13 00:00 |
04:57:57.93 |
-73:36:57.6 |
HIP 22891 |
13.87 |
| 2026-05-13 12:00 |
04:58:11.77 |
-73:36:38.7 |
HIP 22891 |
14.83 |
| 2026-05-14 00:00 |
04:58:25.65 |
-73:36:20.3 |
HIP 22891 |
15.79 |
| 2026-05-14 12:00 |
04:58:39.58 |
-73:36:02.3 |
HIP 22891 |
16.76 |
| 2026-05-15 00:00 |
04:58:53.55 |
-73:35:44.9 |
HIP 22891 |
17.73 |
| 2026-05-15 12:00 |
04:59:07.57 |
-73:35:28.0 |
HIP 22891 |
18.71 |
| 2026-05-16 00:00 |
04:59:21.63 |
-73:35:11.5 |
HIP 22891 |
19.69 |
| 2026-05-16 12:00 |
04:59:35.73 |
-73:34:55.6 |
HIP 22891 |
20.67 |
| 2026-05-17 00:00 |
04:59:49.88 |
-73:34:40.2 |
HIP 22891 |
21.66 |
| 2026-05-17 12:00 |
05:00:04.06 |
-73:34:25.2 |
HIP 22891 |
22.65 |
| 2026-05-18 00:00 |
05:00:18.29 |
-73:34:10.8 |
HIP 22891 |
23.64 |
| 2026-05-18 12:00 |
05:00:32.55 |
-73:33:56.9 |
HIP 23719 |
23.03 |
| 2026-05-19 00:00 |
05:00:46.86 |
-73:33:43.4 |
HIP 23719 |
22.04 |
| 2026-05-19 12:00 |
05:01:01.19 |
-73:33:30.5 |
HIP 23719 |
21.05 |
| 2026-05-20 00:00 |
05:01:15.57 |
-73:33:18.1 |
HIP 23719 |
20.07 |
| 2026-05-20 12:00 |
05:01:29.98 |
-73:33:06.2 |
HIP 23719 |
19.08 |
| 2026-05-21 00:00 |
05:01:44.43 |
-73:32:54.8 |
HIP 23719 |
18.10 |
| 2026-05-21 12:00 |
05:01:58.90 |
-73:32:43.9 |
HIP 23719 |
17.12 |
| 2026-05-22 00:00 |
05:02:13.41 |
-73:32:33.5 |
HIP 23719 |
16.15 |
| 2026-05-22 12:00 |
05:02:27.96 |
-73:32:23.6 |
HIP 23719 |
15.18 |
| 2026-05-23 00:00 |
05:02:42.53 |
-73:32:14.2 |
HIP 23719 |
14.21 |
| 2026-05-23 12:00 |
05:02:57.14 |
-73:32:05.3 |
HIP 23719 |
13.25 |
| 2026-05-24 00:00 |
05:03:11.77 |
-73:31:57.0 |
HIP 23719 |
12.30 |
| 2026-05-24 12:00 |
05:03:26.43 |
-73:31:49.1 |
HIP 23719 |
11.36 |
| 2026-05-25 00:00 |
05:03:41.12 |
-73:31:41.8 |
HIP 23719 |
10.43 |
| 2026-05-25 12:00 |
05:03:55.84 |
-73:31:34.9 |
HIP 23719 |
9.53 |
| 2026-05-26 00:00 |
05:04:10.58 |
-73:31:28.6 |
HIP 23719 |
8.65 |
| 2026-05-26 12:00 |
05:04:25.35 |
-73:31:22.8 |
HIP 23719 |
7.80 |
| 2026-05-27 00:00 |
05:04:40.14 |
-73:31:17.5 |
HIP 23719 |
7.01 |
| 2026-05-27 12:00 |
05:04:54.96 |
-73:31:12.7 |
HIP 23719 |
6.28 |
| 2026-05-28 00:00 |
05:05:09.80 |
-73:31:08.4 |
HIP 23719 |
5.65 |
| 2026-05-28 12:00 |
05:05:24.67 |
-73:31:04.6 |
HIP 23719 |
5.14 |
| 2026-05-29 00:00 |
05:05:39.55 |
-73:31:01.4 |
HIP 23719 |
4.81 |
| 2026-05-29 12:00 |
05:05:54.46 |
-73:30:58.6 |
HIP 23719 |
4.69 |
| 2026-05-30 00:00 |
05:06:09.39 |
-73:30:56.4 |
HIP 23719 |
4.80 |
| 2026-05-30 12:00 |
05:06:24.33 |
-73:30:54.6 |
HIP 23719 |
5.12 |
| 2026-05-31 00:00 |
05:06:39.30 |
-73:30:53.4 |
HIP 23719 |
5.62 |
| 2026-05-31 12:00 |
05:06:54.28 |
-73:30:52.7 |
HIP 23719 |
6.25 |
| 2026-06-01 00:00 |
05:07:09.29 |
-73:30:52.5 |
HIP 23719 |
6.98 |
| 2026-06-01 12:00 |
05:07:24.31 |
-73:30:52.8 |
HIP 23719 |
7.79 |
| 2026-06-02 00:00 |
05:07:39.34 |
-73:30:53.6 |
HIP 23719 |
8.65 |