메타데이터
| 항목 |
값 |
| Designation |
365P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2018-02-10T18:09:33.384960Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:28:38Z |
| Obs used |
403 |
| NEO |
- |
| M1 |
17.000 |
| K1 |
11.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2017-12-14.0000000 |
| e |
0.57334364 |
| q (au) |
1.359121 |
| a (au) |
3.185517 |
| i (deg) |
9.836431 |
| Ω (om, deg) |
87.442495 |
| ω (w, deg) |
66.397480 |
| M (ma, deg) |
349.814297 |
밝기
산란 + 전체 선형
$$
M_a = (17.429 + 4.999\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
17.429 |
| n |
4.999 |
| gf |
1.000 |
| gb |
-0.552 |
| 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) |
| 2026-07-29 00:00 |
23:05:22.57 |
-17:47:11.5 |
HIP 114042 |
34.83 |
| 2026-07-29 12:00 |
23:05:09.44 |
-17:49:27.0 |
HIP 114042 |
33.14 |
| 2026-07-30 00:00 |
23:04:56.14 |
-17:51:43.0 |
HIP 114042 |
31.83 |
| 2026-07-30 12:00 |
23:04:42.66 |
-17:53:59.5 |
HIP 114042 |
30.97 |
| 2026-07-31 00:00 |
23:04:29.01 |
-17:56:16.4 |
HIP 114042 |
30.61 |
| 2026-07-31 12:00 |
23:04:15.19 |
-17:58:33.8 |
HIP 114042 |
30.78 |
| 2026-08-01 00:00 |
23:04:01.19 |
-18:00:51.7 |
HIP 114042 |
31.49 |
| 2026-08-01 12:00 |
23:03:47.02 |
-18:03:09.9 |
HIP 114042 |
32.71 |
| 2026-08-02 00:00 |
23:03:32.68 |
-18:05:28.5 |
HIP 113792 |
30.00 |
| 2026-08-02 12:00 |
23:03:18.18 |
-18:07:47.5 |
HIP 113744 |
26.38 |
| 2026-08-03 00:00 |
23:03:03.51 |
-18:10:06.9 |
HIP 113744 |
22.39 |
| 2026-08-03 12:00 |
23:02:48.67 |
-18:12:26.6 |
HIP 113744 |
18.47 |
| 2026-08-04 00:00 |
23:02:33.67 |
-18:14:46.6 |
HIP 113744 |
14.70 |
| 2026-08-04 12:00 |
23:02:18.51 |
-18:17:06.9 |
HIP 113744 |
11.27 |
| 2026-08-05 00:00 |
23:02:03.19 |
-18:19:27.4 |
HIP 113678 |
8.47 |
| 2026-08-05 12:00 |
23:01:47.71 |
-18:21:48.3 |
HIP 113678 |
5.87 |
| 2026-08-06 00:00 |
23:01:32.07 |
-18:24:09.3 |
HIP 113678 |
5.94 |
| 2026-08-06 12:00 |
23:01:16.28 |
-18:26:30.6 |
HIP 113678 |
8.65 |
| 2026-08-07 00:00 |
23:01:00.34 |
-18:28:52.1 |
HIP 113678 |
12.42 |
| 2026-08-07 12:00 |
23:00:44.24 |
-18:31:13.7 |
HIP 113678 |
16.55 |
| 2026-08-08 00:00 |
23:00:28.00 |
-18:33:35.5 |
HIP 113678 |
20.86 |
| 2026-08-08 12:00 |
23:00:11.61 |
-18:35:57.4 |
HIP 113678 |
25.27 |
| 2026-08-09 00:00 |
22:59:55.07 |
-18:38:19.4 |
HIP 113678 |
29.74 |
| 2026-08-09 12:00 |
22:59:38.39 |
-18:40:41.5 |
HIP 113406 |
28.63 |
| 2026-08-10 00:00 |
22:59:21.57 |
-18:43:03.6 |
HIP 113406 |
24.04 |
| 2026-08-10 12:00 |
22:59:04.61 |
-18:45:25.8 |
HIP 113406 |
19.45 |
| 2026-08-11 00:00 |
22:58:47.52 |
-18:47:48.0 |
HIP 113406 |
14.88 |
| 2026-08-11 12:00 |
22:58:30.29 |
-18:50:10.2 |
HIP 113406 |
10.40 |
| 2026-08-12 00:00 |
22:58:12.93 |
-18:52:32.3 |
HIP 113406 |
6.27 |
| 2026-08-12 12:00 |
22:57:55.44 |
-18:54:54.4 |
HIP 113406 |
3.92 |
| 2026-08-13 00:00 |
22:57:37.83 |
-18:57:16.3 |
HIP 113406 |
6.11 |
| 2026-08-13 12:00 |
22:57:20.09 |
-18:59:38.2 |
HIP 113406 |
10.28 |
| 2026-08-14 00:00 |
22:57:02.23 |
-19:02:00.0 |
HIP 113406 |
14.87 |
| 2026-08-14 12:00 |
22:56:44.25 |
-19:04:21.5 |
HIP 113406 |
19.60 |
| 2026-08-15 00:00 |
22:56:26.16 |
-19:06:42.8 |
HIP 113163 |
24.25 |
| 2026-08-15 12:00 |
22:56:07.95 |
-19:09:04.0 |
HIP 113163 |
19.35 |
| 2026-08-16 00:00 |
22:55:49.64 |
-19:11:24.9 |
HIP 113163 |
14.43 |
| 2026-08-16 12:00 |
22:55:31.21 |
-19:13:45.6 |
HIP 113163 |
9.49 |
| 2026-08-17 00:00 |
22:55:12.68 |
-19:16:06.0 |
HIP 113163 |
4.55 |
| 2026-08-17 12:00 |
22:54:54.05 |
-19:18:26.1 |
HIP 113163 |
0.73 |
| 2026-08-18 00:00 |
22:54:35.32 |
-19:20:45.8 |
HIP 113163 |
5.49 |
| 2026-08-18 12:00 |
22:54:16.50 |
-19:23:05.2 |
HIP 113163 |
10.49 |
| 2026-08-19 00:00 |
22:53:57.58 |
-19:25:24.3 |
HIP 113080 |
15.02 |