메타데이터
| 항목 |
값 |
| Designation |
P/2013 W1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-03-08T04:13:11.366400Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:42Z |
| Obs used |
105 |
| NEO |
- |
| M1 |
18.800 |
| K1 |
5.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2013-12-22.0000000 |
| e |
0.59388126 |
| q (au) |
1.415613 |
| a (au) |
3.485712 |
| i (deg) |
4.699497 |
| Ω (om, deg) |
117.856010 |
| ω (w, deg) |
1.327118 |
| M (ma, deg) |
348.463235 |
밝기
산란 + 전체 선형
$$
M_a = (17.227 + 3.690\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
17.227 |
| n |
3.690 |
| gf |
0.800 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
9.997 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
01:16:26.23 |
+04:07:58.7 |
HIP 6018 |
20.57 |
| 2026-06-01 12:00 |
01:17:04.16 |
+04:11:21.2 |
HIP 6018 |
12.81 |
| 2026-06-02 00:00 |
01:17:42.09 |
+04:14:43.2 |
HIP 6018 |
10.34 |
| 2026-06-02 12:00 |
01:18:20.01 |
+04:18:04.7 |
HIP 6018 |
15.84 |
| 2026-06-03 00:00 |
01:18:57.92 |
+04:21:25.8 |
HIP 6142 |
17.85 |
| 2026-06-03 12:00 |
01:19:35.83 |
+04:24:46.3 |
HIP 6142 |
18.06 |
| 2026-06-04 00:00 |
01:20:13.73 |
+04:28:06.3 |
HIP 6142 |
23.12 |
| 2026-06-04 12:00 |
01:20:51.63 |
+04:31:25.9 |
HIP 6356 |
19.72 |
| 2026-06-05 00:00 |
01:21:29.53 |
+04:34:44.9 |
HIP 6356 |
19.41 |
| 2026-06-05 12:00 |
01:22:07.41 |
+04:38:03.4 |
HIP 6441 |
10.94 |
| 2026-06-06 00:00 |
01:22:45.29 |
+04:41:21.4 |
HIP 6441 |
2.97 |
| 2026-06-06 12:00 |
01:23:23.16 |
+04:44:38.9 |
HIP 6441 |
9.89 |
| 2026-06-07 00:00 |
01:24:01.02 |
+04:47:55.8 |
HIP 6441 |
19.66 |
| 2026-06-07 12:00 |
01:24:38.88 |
+04:51:12.2 |
HIP 6555 |
25.81 |
| 2026-06-08 00:00 |
01:25:16.73 |
+04:54:28.1 |
HIP 6555 |
32.26 |
| 2026-06-08 12:00 |
01:25:54.56 |
+04:57:43.4 |
HIP 6638 |
31.70 |
| 2026-06-09 00:00 |
01:26:32.39 |
+05:00:58.1 |
HIP 6815 |
26.28 |
| 2026-06-09 12:00 |
01:27:10.20 |
+05:04:12.3 |
HIP 6815 |
18.51 |
| 2026-06-10 00:00 |
01:27:48.01 |
+05:07:25.9 |
HIP 6815 |
13.91 |
| 2026-06-10 12:00 |
01:28:25.80 |
+05:10:39.0 |
HIP 6815 |
15.56 |
| 2026-06-11 00:00 |
01:29:03.58 |
+05:13:51.4 |
HIP 6815 |
22.10 |
| 2026-06-11 12:00 |
01:29:41.35 |
+05:17:03.3 |
HIP 7029 |
14.09 |
| 2026-06-12 00:00 |
01:30:19.11 |
+05:20:14.6 |
HIP 7029 |
4.21 |
| 2026-06-12 12:00 |
01:30:56.85 |
+05:23:25.3 |
HIP 7029 |
5.82 |
| 2026-06-13 00:00 |
01:31:34.57 |
+05:26:35.3 |
HIP 7029 |
15.70 |
| 2026-06-13 12:00 |
01:32:12.29 |
+05:29:44.8 |
HIP 7220 |
13.89 |
| 2026-06-14 00:00 |
01:32:49.98 |
+05:32:53.6 |
HIP 7220 |
10.33 |
| 2026-06-14 12:00 |
01:33:27.66 |
+05:36:01.8 |
HIP 7220 |
14.69 |
| 2026-06-15 00:00 |
01:34:05.32 |
+05:39:09.4 |
HIP 7220 |
22.80 |
| 2026-06-15 12:00 |
01:34:42.96 |
+05:42:16.3 |
HIP 7220 |
31.91 |
| 2026-06-16 00:00 |
01:35:20.58 |
+05:45:22.6 |
HIP 7532 |
26.35 |
| 2026-06-16 12:00 |
01:35:58.18 |
+05:48:28.2 |
HIP 7532 |
19.12 |
| 2026-06-17 00:00 |
01:36:35.77 |
+05:51:33.2 |
HIP 7532 |
15.18 |
| 2026-06-17 12:00 |
01:37:13.33 |
+05:54:37.5 |
HIP 7532 |
17.00 |
| 2026-06-18 00:00 |
01:37:50.87 |
+05:57:41.1 |
HIP 7532 |
23.24 |
| 2026-06-18 12:00 |
01:38:28.39 |
+06:00:44.1 |
HIP 7701 |
27.81 |
| 2026-06-19 00:00 |
01:39:05.89 |
+06:03:46.4 |
HIP 7774 |
24.16 |
| 2026-06-19 12:00 |
01:39:43.36 |
+06:06:48.0 |
HIP 7774 |
17.14 |
| 2026-06-20 00:00 |
01:40:20.81 |
+06:09:49.0 |
HIP 7774 |
14.00 |
| 2026-06-20 12:00 |
01:40:58.24 |
+06:12:49.2 |
HIP 7774 |
17.02 |
| 2026-06-21 00:00 |
01:41:35.64 |
+06:15:48.7 |
HIP 7774 |
23.96 |
| 2026-06-21 12:00 |
01:42:13.02 |
+06:18:47.6 |
HIP 8031 |
18.65 |
| 2026-06-22 00:00 |
01:42:50.38 |
+06:21:45.7 |
HIP 8031 |
15.86 |