메타데이터
| 항목 |
값 |
| Designation |
C/2022 JK5 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2023-04-28T20:24:39.856320Z |
| Orbit solution date (soln_date, UTC) |
2024-12-03T17:12:22Z |
| Obs used |
892 |
| NEO |
- |
| M1 |
11.800 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2023-09-05.0000000 |
| e |
0.93785074 |
| q (au) |
2.687022 |
| a (au) |
43.234983 |
| i (deg) |
16.830858 |
| Ω (om, deg) |
59.651258 |
| ω (w, deg) |
247.170105 |
| M (ma, deg) |
0.447759 |
밝기
산란 + 전체 선형
$$
M_a = (13.692 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.692 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.768 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
04:15:30.82 |
+22:55:35.6 |
HIP 19745 |
24.88 |
| 2026-06-01 12:00 |
04:15:45.14 |
+22:56:23.0 |
HIP 19981 |
24.69 |
| 2026-06-02 00:00 |
04:15:59.46 |
+22:57:10.3 |
HIP 19981 |
22.85 |
| 2026-06-02 12:00 |
04:16:13.76 |
+22:57:57.6 |
HIP 19981 |
21.39 |
| 2026-06-03 00:00 |
04:16:28.05 |
+22:58:44.7 |
HIP 19981 |
20.40 |
| 2026-06-03 12:00 |
04:16:42.32 |
+22:59:31.8 |
HIP 19981 |
19.94 |
| 2026-06-04 00:00 |
04:16:56.58 |
+23:00:18.8 |
HIP 19981 |
20.05 |
| 2026-06-04 12:00 |
04:17:10.83 |
+23:01:05.8 |
HIP 20071 |
19.39 |
| 2026-06-05 00:00 |
04:17:25.06 |
+23:01:52.6 |
HIP 20071 |
17.64 |
| 2026-06-05 12:00 |
04:17:39.27 |
+23:02:39.3 |
HIP 20071 |
16.39 |
| 2026-06-06 00:00 |
04:17:53.47 |
+23:03:26.0 |
HIP 20071 |
15.78 |
| 2026-06-06 12:00 |
04:18:07.65 |
+23:04:12.5 |
HIP 20071 |
15.87 |
| 2026-06-07 00:00 |
04:18:21.81 |
+23:04:59.0 |
HIP 20071 |
16.65 |
| 2026-06-07 12:00 |
04:18:35.96 |
+23:05:45.4 |
HIP 20071 |
18.03 |
| 2026-06-08 00:00 |
04:18:50.09 |
+23:06:31.7 |
HIP 20071 |
19.88 |
| 2026-06-08 12:00 |
04:19:04.19 |
+23:07:17.9 |
HIP 20071 |
22.07 |
| 2026-06-09 00:00 |
04:19:18.28 |
+23:08:04.0 |
HIP 20270 |
22.30 |
| 2026-06-09 12:00 |
04:19:32.35 |
+23:08:50.0 |
HIP 20270 |
20.00 |
| 2026-06-10 00:00 |
04:19:46.39 |
+23:09:35.9 |
HIP 20270 |
18.03 |
| 2026-06-10 12:00 |
04:20:00.42 |
+23:10:21.7 |
HIP 20270 |
16.50 |
| 2026-06-11 00:00 |
04:20:14.42 |
+23:11:07.4 |
HIP 20270 |
15.54 |
| 2026-06-11 12:00 |
04:20:28.40 |
+23:11:53.0 |
HIP 20270 |
15.25 |
| 2026-06-12 00:00 |
04:20:42.36 |
+23:12:38.5 |
HIP 20270 |
15.66 |
| 2026-06-12 12:00 |
04:20:56.29 |
+23:13:23.9 |
HIP 20270 |
16.73 |
| 2026-06-13 00:00 |
04:21:10.20 |
+23:14:09.2 |
HIP 20270 |
18.33 |
| 2026-06-13 12:00 |
04:21:24.09 |
+23:14:54.4 |
HIP 20270 |
20.33 |
| 2026-06-14 00:00 |
04:21:37.95 |
+23:15:39.5 |
HIP 20270 |
22.63 |
| 2026-06-14 12:00 |
04:21:51.78 |
+23:16:24.5 |
HIP 20270 |
25.14 |
| 2026-06-15 00:00 |
04:22:05.58 |
+23:17:09.4 |
HIP 20270 |
27.80 |
| 2026-06-15 12:00 |
04:22:19.36 |
+23:17:54.2 |
HIP 20513 |
27.94 |
| 2026-06-16 00:00 |
04:22:33.11 |
+23:18:38.9 |
HIP 20513 |
26.42 |
| 2026-06-16 12:00 |
04:22:46.83 |
+23:19:23.4 |
HIP 20513 |
25.22 |
| 2026-06-17 00:00 |
04:23:00.52 |
+23:20:07.9 |
HIP 20513 |
24.40 |
| 2026-06-17 12:00 |
04:23:14.18 |
+23:20:52.2 |
HIP 20513 |
23.99 |
| 2026-06-18 00:00 |
04:23:27.81 |
+23:21:36.5 |
HIP 20513 |
24.01 |
| 2026-06-18 12:00 |
04:23:41.40 |
+23:22:20.6 |
HIP 20513 |
24.46 |
| 2026-06-19 00:00 |
04:23:54.97 |
+23:23:04.6 |
HIP 20513 |
25.31 |
| 2026-06-19 12:00 |
04:24:08.50 |
+23:23:48.5 |
HIP 20513 |
26.51 |
| 2026-06-20 00:00 |
04:24:22.00 |
+23:24:32.3 |
HIP 20644 |
24.75 |
| 2026-06-20 12:00 |
04:24:35.47 |
+23:25:16.0 |
HIP 20644 |
22.40 |
| 2026-06-21 00:00 |
04:24:48.90 |
+23:25:59.5 |
HIP 20644 |
20.28 |
| 2026-06-21 12:00 |
04:25:02.30 |
+23:26:43.0 |
HIP 20644 |
18.47 |
| 2026-06-22 00:00 |
04:25:15.66 |
+23:27:26.3 |
HIP 20644 |
17.06 |