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) |
| 2026-07-29 00:00 |
04:39:29.72 |
+24:15:08.4 |
HIP 21768 |
18.30 |
| 2026-07-29 12:00 |
04:39:38.92 |
+24:15:42.1 |
HIP 21768 |
16.33 |
| 2026-07-30 00:00 |
04:39:48.05 |
+24:16:15.7 |
HIP 21768 |
14.44 |
| 2026-07-30 12:00 |
04:39:57.11 |
+24:16:49.2 |
HIP 21768 |
12.64 |
| 2026-07-31 00:00 |
04:40:06.09 |
+24:17:22.5 |
HIP 21768 |
10.97 |
| 2026-07-31 12:00 |
04:40:14.99 |
+24:17:55.7 |
HIP 21768 |
9.49 |
| 2026-08-01 00:00 |
04:40:23.81 |
+24:18:28.8 |
HIP 21768 |
8.29 |
| 2026-08-01 12:00 |
04:40:32.56 |
+24:19:01.7 |
HIP 21768 |
7.50 |
| 2026-08-02 00:00 |
04:40:41.23 |
+24:19:34.4 |
HIP 21768 |
7.22 |
| 2026-08-02 12:00 |
04:40:49.82 |
+24:20:07.1 |
HIP 21768 |
7.51 |
| 2026-08-03 00:00 |
04:40:58.34 |
+24:20:39.6 |
HIP 21768 |
8.28 |
| 2026-08-03 12:00 |
04:41:06.77 |
+24:21:11.9 |
HIP 21768 |
9.42 |
| 2026-08-04 00:00 |
04:41:15.12 |
+24:21:44.1 |
HIP 21768 |
10.79 |
| 2026-08-04 12:00 |
04:41:23.40 |
+24:22:16.2 |
HIP 21768 |
12.31 |
| 2026-08-05 00:00 |
04:41:31.59 |
+24:22:48.2 |
HIP 21768 |
13.93 |
| 2026-08-05 12:00 |
04:41:39.70 |
+24:23:20.0 |
HIP 21768 |
15.60 |
| 2026-08-06 00:00 |
04:41:47.73 |
+24:23:51.6 |
HIP 21768 |
17.30 |
| 2026-08-06 12:00 |
04:41:55.67 |
+24:24:23.1 |
HIP 21768 |
19.02 |
| 2026-08-07 00:00 |
04:42:03.54 |
+24:24:54.5 |
HIP 21768 |
20.75 |
| 2026-08-07 12:00 |
04:42:11.31 |
+24:25:25.8 |
HIP 21768 |
22.49 |
| 2026-08-08 00:00 |
04:42:19.01 |
+24:25:56.8 |
HIP 21961 |
24.09 |
| 2026-08-08 12:00 |
04:42:26.62 |
+24:26:27.8 |
HIP 21961 |
23.70 |
| 2026-08-09 00:00 |
04:42:34.14 |
+24:26:58.6 |
HIP 21961 |
23.45 |
| 2026-08-09 12:00 |
04:42:41.58 |
+24:27:29.3 |
HIP 21961 |
23.33 |
| 2026-08-10 00:00 |
04:42:48.93 |
+24:27:59.8 |
HIP 21961 |
23.35 |
| 2026-08-10 12:00 |
04:42:56.20 |
+24:28:30.2 |
HIP 21961 |
23.51 |
| 2026-08-11 00:00 |
04:43:03.38 |
+24:29:00.4 |
HIP 21961 |
23.79 |
| 2026-08-11 12:00 |
04:43:10.47 |
+24:29:30.5 |
HIP 21961 |
24.18 |
| 2026-08-12 00:00 |
04:43:17.47 |
+24:30:00.5 |
HIP 21961 |
24.69 |
| 2026-08-12 12:00 |
04:43:24.38 |
+24:30:30.3 |
HIP 21961 |
25.28 |
| 2026-08-13 00:00 |
04:43:31.20 |
+24:31:00.0 |
HIP 22096 |
25.18 |
| 2026-08-13 12:00 |
04:43:37.94 |
+24:31:29.5 |
HIP 22096 |
23.84 |
| 2026-08-14 00:00 |
04:43:44.58 |
+24:31:58.9 |
HIP 22096 |
22.55 |
| 2026-08-14 12:00 |
04:43:51.13 |
+24:32:28.1 |
HIP 22096 |
21.32 |
| 2026-08-15 00:00 |
04:43:57.59 |
+24:32:57.2 |
HIP 22096 |
20.16 |
| 2026-08-15 12:00 |
04:44:03.96 |
+24:33:26.1 |
HIP 22096 |
19.06 |
| 2026-08-16 00:00 |
04:44:10.24 |
+24:33:54.9 |
HIP 22096 |
18.05 |
| 2026-08-16 12:00 |
04:44:16.42 |
+24:34:23.6 |
HIP 22096 |
17.13 |
| 2026-08-17 00:00 |
04:44:22.51 |
+24:34:52.1 |
HIP 22096 |
16.31 |
| 2026-08-17 12:00 |
04:44:28.51 |
+24:35:20.4 |
HIP 22096 |
15.59 |
| 2026-08-18 00:00 |
04:44:34.41 |
+24:35:48.7 |
HIP 22096 |
14.99 |
| 2026-08-18 12:00 |
04:44:40.22 |
+24:36:16.7 |
HIP 22096 |
14.52 |
| 2026-08-19 00:00 |
04:44:45.94 |
+24:36:44.6 |
HIP 22096 |
14.19 |