메타데이터
| 항목 |
값 |
| Designation |
P/2022 R5 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2022-05-27T20:48:27.054720Z |
| Orbit solution date (soln_date, UTC) |
2022-11-29T21:43:49Z |
| Obs used |
47 |
| NEO |
- |
| M1 |
15.800 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-09-08T14:25:00.393600Z |
| Discovery magnitude (MPC) |
21.35 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-10-13.0000000 |
| e |
0.19578965 |
| q (au) |
2.469627 |
| a (au) |
3.070872 |
| i (deg) |
15.291928 |
| Ω (om, deg) |
115.067048 |
| ω (w, deg) |
240.680778 |
| M (ma, deg) |
25.299334 |
밝기
산란 + 전체 선형
$$
M_a = (14.907 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.907 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.559 |
| 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) |
| 2026-05-12 00:00 |
16:24:00.06 |
-03:20:33.4 |
HIP 80315 |
22.22 |
| 2026-05-12 12:00 |
16:23:37.96 |
-03:19:42.4 |
HIP 80315 |
21.43 |
| 2026-05-13 00:00 |
16:23:15.69 |
-03:18:52.9 |
HIP 80176 |
21.72 |
| 2026-05-13 12:00 |
16:22:53.25 |
-03:18:04.9 |
HIP 80176 |
17.52 |
| 2026-05-14 00:00 |
16:22:30.66 |
-03:17:18.4 |
HIP 80176 |
14.32 |
| 2026-05-14 12:00 |
16:22:07.91 |
-03:16:33.5 |
HIP 80176 |
12.92 |
| 2026-05-15 00:00 |
16:21:45.01 |
-03:15:50.2 |
HIP 80176 |
13.93 |
| 2026-05-15 12:00 |
16:21:21.96 |
-03:15:08.6 |
HIP 80176 |
16.95 |
| 2026-05-16 00:00 |
16:20:58.78 |
-03:14:28.5 |
HIP 80012 |
19.81 |
| 2026-05-16 12:00 |
16:20:35.46 |
-03:13:50.1 |
HIP 80012 |
15.36 |
| 2026-05-17 00:00 |
16:20:12.01 |
-03:13:13.4 |
HIP 80012 |
12.18 |
| 2026-05-17 12:00 |
16:19:48.44 |
-03:12:38.3 |
HIP 80012 |
11.44 |
| 2026-05-18 00:00 |
16:19:24.75 |
-03:12:05.0 |
HIP 80012 |
13.58 |
| 2026-05-18 12:00 |
16:19:00.95 |
-03:11:33.4 |
HIP 80012 |
17.60 |
| 2026-05-19 00:00 |
16:18:37.05 |
-03:11:03.6 |
HIP 80012 |
22.54 |
| 2026-05-19 12:00 |
16:18:13.05 |
-03:10:35.5 |
HIP 79756 |
25.44 |
| 2026-05-20 00:00 |
16:17:48.95 |
-03:10:09.2 |
HIP 79756 |
20.67 |
| 2026-05-20 12:00 |
16:17:24.76 |
-03:09:44.7 |
HIP 79756 |
16.70 |
| 2026-05-21 00:00 |
16:17:00.49 |
-03:09:22.0 |
HIP 79756 |
14.25 |
| 2026-05-21 12:00 |
16:16:36.15 |
-03:09:01.2 |
HIP 79756 |
14.13 |
| 2026-05-22 00:00 |
16:16:11.73 |
-03:08:42.2 |
HIP 79756 |
16.43 |
| 2026-05-22 12:00 |
16:15:47.25 |
-03:08:25.0 |
HIP 79756 |
20.36 |
| 2026-05-23 00:00 |
16:15:22.71 |
-03:08:09.7 |
HIP 79583 |
17.21 |
| 2026-05-23 12:00 |
16:14:58.12 |
-03:07:56.3 |
HIP 79583 |
11.18 |
| 2026-05-24 00:00 |
16:14:33.47 |
-03:07:44.8 |
HIP 79583 |
5.41 |
| 2026-05-24 12:00 |
16:14:08.79 |
-03:07:35.3 |
HIP 79583 |
3.07 |
| 2026-05-25 00:00 |
16:13:44.07 |
-03:07:27.6 |
HIP 79583 |
8.12 |
| 2026-05-25 12:00 |
16:13:19.31 |
-03:07:21.8 |
HIP 79583 |
14.11 |
| 2026-05-26 00:00 |
16:12:54.54 |
-03:07:18.0 |
HIP 79583 |
20.22 |
| 2026-05-26 12:00 |
16:12:29.74 |
-03:07:16.2 |
HIP 79378 |
18.24 |
| 2026-05-27 00:00 |
16:12:04.93 |
-03:07:16.2 |
HIP 79378 |
16.96 |
| 2026-05-27 12:00 |
16:11:40.11 |
-03:07:18.3 |
HIP 79378 |
17.90 |
| 2026-05-28 00:00 |
16:11:15.28 |
-03:07:22.3 |
HIP 79378 |
20.76 |
| 2026-05-28 12:00 |
16:10:50.46 |
-03:07:28.3 |
HIP 79378 |
24.89 |
| 2026-05-29 00:00 |
16:10:25.65 |
-03:07:36.3 |
HIP 79195 |
22.20 |
| 2026-05-29 12:00 |
16:10:00.85 |
-03:07:46.3 |
HIP 79195 |
20.39 |
| 2026-05-30 00:00 |
16:09:36.07 |
-03:07:58.4 |
HIP 79195 |
20.35 |
| 2026-05-30 12:00 |
16:09:11.32 |
-03:08:12.4 |
HIP 79099 |
19.54 |
| 2026-05-31 00:00 |
16:08:46.59 |
-03:08:28.4 |
HIP 79099 |
18.61 |
| 2026-05-31 12:00 |
16:08:21.90 |
-03:08:46.5 |
HIP 79099 |
19.70 |
| 2026-06-01 00:00 |
16:07:57.26 |
-03:09:06.5 |
HIP 78945 |
15.91 |
| 2026-06-01 12:00 |
16:07:32.65 |
-03:09:28.7 |
HIP 78945 |
10.28 |
| 2026-06-02 00:00 |
16:07:08.11 |
-03:09:52.8 |
HIP 78945 |
5.82 |