메타데이터
| 항목 |
값 |
| Designation |
P/2015 X3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-08-08T01:02:13.706880Z |
| Orbit solution date (soln_date, UTC) |
2023-05-03T22:43:53Z |
| Obs used |
35 |
| NEO |
- |
| M1 |
14.400 |
| K1 |
10.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2015-11-30.0000000 |
| e |
0.43811818 |
| q (au) |
2.822784 |
| a (au) |
5.023804 |
| i (deg) |
24.376797 |
| Ω (om, deg) |
77.328495 |
| ω (w, deg) |
306.951390 |
| M (ma, deg) |
9.974595 |
밝기
산란 + 전체 선형
$$
M_a = (11.148 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.148 |
| n |
6.000 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
01:06:49.48 |
-16:49:13.9 |
HIP 5128 |
21.22 |
| 2026-06-01 12:00 |
01:07:32.59 |
-16:46:47.7 |
HIP 5329 |
16.14 |
| 2026-06-02 00:00 |
01:08:15.62 |
-16:44:22.7 |
HIP 5329 |
10.93 |
| 2026-06-02 12:00 |
01:08:58.57 |
-16:41:58.8 |
HIP 5329 |
14.24 |
| 2026-06-03 00:00 |
01:09:41.45 |
-16:39:36.2 |
HIP 5329 |
22.55 |
| 2026-06-03 12:00 |
01:10:24.24 |
-16:37:14.7 |
HIP 5498 |
18.84 |
| 2026-06-04 00:00 |
01:11:06.96 |
-16:34:54.4 |
HIP 5498 |
19.54 |
| 2026-06-04 12:00 |
01:11:49.59 |
-16:32:35.3 |
HIP 5498 |
25.09 |
| 2026-06-05 00:00 |
01:12:32.14 |
-16:30:17.4 |
HIP 5775 |
23.25 |
| 2026-06-05 12:00 |
01:13:14.61 |
-16:28:00.8 |
HIP 5775 |
12.83 |
| 2026-06-06 00:00 |
01:13:57.00 |
-16:25:45.4 |
HIP 5775 |
2.43 |
| 2026-06-06 12:00 |
01:14:39.30 |
-16:23:31.2 |
HIP 5775 |
7.98 |
| 2026-06-07 00:00 |
01:15:21.51 |
-16:21:18.2 |
HIP 5775 |
18.34 |
| 2026-06-07 12:00 |
01:16:03.64 |
-16:19:06.6 |
HIP 5946 |
19.32 |
| 2026-06-08 00:00 |
01:16:45.68 |
-16:16:56.1 |
HIP 5946 |
20.76 |
| 2026-06-08 12:00 |
01:17:27.63 |
-16:14:47.0 |
HIP 5946 |
26.45 |
| 2026-06-09 00:00 |
01:18:09.50 |
-16:12:39.1 |
HIP 5946 |
34.32 |
| 2026-06-09 12:00 |
01:18:51.27 |
-16:10:32.6 |
HIP 6284 |
25.36 |
| 2026-06-10 00:00 |
01:19:32.95 |
-16:08:27.3 |
HIP 6284 |
15.60 |
| 2026-06-10 12:00 |
01:20:14.54 |
-16:06:23.3 |
HIP 6284 |
7.26 |
| 2026-06-11 00:00 |
01:20:56.04 |
-16:04:20.7 |
HIP 6284 |
8.33 |
| 2026-06-11 12:00 |
01:21:37.44 |
-16:02:19.4 |
HIP 6284 |
17.09 |
| 2026-06-12 00:00 |
01:22:18.74 |
-16:00:19.4 |
HIP 6506 |
22.08 |
| 2026-06-12 12:00 |
01:22:59.95 |
-15:58:20.8 |
HIP 6506 |
16.96 |
| 2026-06-13 00:00 |
01:23:41.06 |
-15:56:23.5 |
HIP 6506 |
17.05 |
| 2026-06-13 12:00 |
01:24:22.08 |
-15:54:27.5 |
HIP 6589 |
15.44 |
| 2026-06-14 00:00 |
01:25:02.99 |
-15:52:33.0 |
HIP 6589 |
14.07 |
| 2026-06-14 12:00 |
01:25:43.80 |
-15:50:39.8 |
HIP 6589 |
18.92 |
| 2026-06-15 00:00 |
01:26:24.50 |
-15:48:47.9 |
HIP 6589 |
26.79 |
| 2026-06-15 12:00 |
01:27:05.10 |
-15:46:57.5 |
HIP 6870 |
20.54 |
| 2026-06-16 00:00 |
01:27:45.60 |
-15:45:08.4 |
HIP 6870 |
13.22 |
| 2026-06-16 12:00 |
01:28:25.99 |
-15:43:20.8 |
HIP 6870 |
11.11 |
| 2026-06-17 00:00 |
01:29:06.28 |
-15:41:34.5 |
HIP 6989 |
12.72 |
| 2026-06-17 12:00 |
01:29:46.45 |
-15:39:49.7 |
HIP 6989 |
4.85 |
| 2026-06-18 00:00 |
01:30:26.52 |
-15:38:06.2 |
HIP 6989 |
8.81 |
| 2026-06-18 12:00 |
01:31:06.48 |
-15:36:24.2 |
HIP 6989 |
17.96 |
| 2026-06-19 00:00 |
01:31:46.32 |
-15:34:43.5 |
HIP 7181 |
13.34 |
| 2026-06-19 12:00 |
01:32:26.05 |
-15:33:04.3 |
HIP 7181 |
6.17 |
| 2026-06-20 00:00 |
01:33:05.67 |
-15:31:26.6 |
HIP 7181 |
9.30 |
| 2026-06-20 12:00 |
01:33:45.18 |
-15:29:50.2 |
HIP 7345 |
16.60 |
| 2026-06-21 00:00 |
01:34:24.56 |
-15:28:15.3 |
HIP 7345 |
12.73 |
| 2026-06-21 12:00 |
01:35:03.84 |
-15:26:41.8 |
HIP 7450 |
13.55 |
| 2026-06-22 00:00 |
01:35:42.99 |
-15:25:09.8 |
HIP 7450 |
4.02 |