메타데이터
| 항목 |
값 |
| Designation |
80P/Peters-Hartley |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-11-10T06:46:41.424960Z |
| Orbit solution date (soln_date, UTC) |
2024-08-26T13:12:38Z |
| Obs used |
179 |
| NEO |
- |
| M1 |
11.800 |
| K1 |
15.750 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2017-04-13.0000000 |
| e |
0.59940950 |
| q (au) |
1.611763 |
| a (au) |
4.023467 |
| i (deg) |
29.931105 |
| Ω (om, deg) |
259.844351 |
| ω (w, deg) |
339.165604 |
| M (ma, deg) |
108.045831 |
밝기
산란 + 전체 선형
$$
M_a = (11.621 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.621 |
| n |
6.000 |
| gf |
0.872 |
| gb |
-1.000 |
| k |
0.994 |
| δ90 |
1.000 |
| 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) |
| 2026-06-01 00:00 |
03:24:49.97 |
+31:01:28.3 |
HIP 15984 |
14.04 |
| 2026-06-01 12:00 |
03:25:11.95 |
+31:02:25.5 |
HIP 15984 |
10.46 |
| 2026-06-02 00:00 |
03:25:33.91 |
+31:03:22.7 |
HIP 15984 |
8.24 |
| 2026-06-02 12:00 |
03:25:55.84 |
+31:04:20.0 |
HIP 15984 |
8.52 |
| 2026-06-03 00:00 |
03:26:17.73 |
+31:05:17.4 |
HIP 15984 |
11.10 |
| 2026-06-03 12:00 |
03:26:39.60 |
+31:06:14.8 |
HIP 15984 |
14.81 |
| 2026-06-04 00:00 |
03:27:01.43 |
+31:07:12.3 |
HIP 15984 |
19.01 |
| 2026-06-04 12:00 |
03:27:23.24 |
+31:08:09.8 |
HIP 15984 |
23.42 |
| 2026-06-05 00:00 |
03:27:45.01 |
+31:09:07.4 |
HIP 16243 |
25.70 |
| 2026-06-05 12:00 |
03:28:06.75 |
+31:10:05.0 |
HIP 16243 |
21.55 |
| 2026-06-06 00:00 |
03:28:28.45 |
+31:11:02.6 |
HIP 16243 |
17.71 |
| 2026-06-06 12:00 |
03:28:50.12 |
+31:12:00.3 |
HIP 16243 |
14.41 |
| 2026-06-07 00:00 |
03:29:11.75 |
+31:12:58.0 |
HIP 16243 |
12.11 |
| 2026-06-07 12:00 |
03:29:33.35 |
+31:13:55.8 |
HIP 16243 |
11.40 |
| 2026-06-08 00:00 |
03:29:54.92 |
+31:14:53.6 |
HIP 16243 |
12.55 |
| 2026-06-08 12:00 |
03:30:16.44 |
+31:15:51.4 |
HIP 16243 |
15.14 |
| 2026-06-09 00:00 |
03:30:37.93 |
+31:16:49.3 |
HIP 16243 |
18.56 |
| 2026-06-09 12:00 |
03:30:59.38 |
+31:17:47.2 |
HIP 16243 |
22.44 |
| 2026-06-10 00:00 |
03:31:20.79 |
+31:18:45.1 |
HIP 16507 |
25.22 |
| 2026-06-10 12:00 |
03:31:42.16 |
+31:19:43.0 |
HIP 16507 |
21.92 |
| 2026-06-11 00:00 |
03:32:03.49 |
+31:20:41.0 |
HIP 16507 |
19.19 |
| 2026-06-11 12:00 |
03:32:24.78 |
+31:21:38.9 |
HIP 16507 |
17.30 |
| 2026-06-12 00:00 |
03:32:46.02 |
+31:22:36.9 |
HIP 16507 |
16.54 |
| 2026-06-12 12:00 |
03:33:07.22 |
+31:23:34.9 |
HIP 16507 |
17.03 |
| 2026-06-13 00:00 |
03:33:28.38 |
+31:24:32.9 |
HIP 16507 |
18.69 |
| 2026-06-13 12:00 |
03:33:49.50 |
+31:25:30.9 |
HIP 16507 |
21.23 |
| 2026-06-14 00:00 |
03:34:10.56 |
+31:26:29.0 |
HIP 16757 |
23.48 |
| 2026-06-14 12:00 |
03:34:31.59 |
+31:27:27.0 |
HIP 16757 |
19.44 |
| 2026-06-15 00:00 |
03:34:52.56 |
+31:28:25.0 |
HIP 16757 |
15.72 |
| 2026-06-15 12:00 |
03:35:13.49 |
+31:29:23.1 |
HIP 16757 |
12.56 |
| 2026-06-16 00:00 |
03:35:34.36 |
+31:30:21.1 |
HIP 16757 |
10.50 |
| 2026-06-16 12:00 |
03:35:55.19 |
+31:31:19.1 |
HIP 16757 |
10.20 |
| 2026-06-17 00:00 |
03:36:15.97 |
+31:32:17.1 |
HIP 16757 |
11.78 |
| 2026-06-17 12:00 |
03:36:36.69 |
+31:33:15.1 |
HIP 16757 |
14.64 |
| 2026-06-18 00:00 |
03:36:57.36 |
+31:34:13.1 |
HIP 16757 |
18.17 |
| 2026-06-18 12:00 |
03:37:17.98 |
+31:35:11.0 |
HIP 16757 |
22.05 |
| 2026-06-19 00:00 |
03:37:38.55 |
+31:36:09.0 |
HIP 16757 |
26.12 |
| 2026-06-19 12:00 |
03:37:59.06 |
+31:37:06.9 |
HIP 16757 |
30.28 |
| 2026-06-20 00:00 |
03:38:19.52 |
+31:38:04.8 |
HIP 17113 |
26.89 |
| 2026-06-20 12:00 |
03:38:39.92 |
+31:39:02.7 |
HIP 17113 |
23.06 |
| 2026-06-21 00:00 |
03:39:00.26 |
+31:40:00.5 |
HIP 17113 |
19.50 |
| 2026-06-21 12:00 |
03:39:20.55 |
+31:40:58.3 |
HIP 17113 |
16.38 |
| 2026-06-22 00:00 |
03:39:40.77 |
+31:41:56.1 |
HIP 17113 |
13.98 |