메타데이터
| 항목 |
값 |
| Designation |
C/2022 S5 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2022-11-27T11:05:05.619840Z |
| Orbit solution date (soln_date, UTC) |
2023-04-21T18:43:35Z |
| Obs used |
100 |
| NEO |
- |
| M1 |
12.600 |
| K1 |
17.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-09-24T12:06:49.190400Z |
| Discovery magnitude (MPC) |
19.57 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-10-08.0000000 |
| e |
0.89345955 |
| q (au) |
2.178764 |
| a (au) |
20.450111 |
| i (deg) |
136.530929 |
| Ω (om, deg) |
214.856203 |
| ω (w, deg) |
232.775257 |
| M (ma, deg) |
359.462196 |
밝기
산란 + 전체 선형
$$
M_a = (12.631 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.631 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
1.000 |
| 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) |
| 2026-06-01 00:00 |
13:47:18.83 |
-07:11:39.0 |
HIP 67355 |
25.96 |
| 2026-06-01 12:00 |
13:47:09.31 |
-07:10:26.8 |
HIP 67355 |
26.44 |
| 2026-06-02 00:00 |
13:46:59.86 |
-07:09:15.2 |
HIP 67355 |
27.16 |
| 2026-06-02 12:00 |
13:46:50.50 |
-07:08:04.1 |
HIP 67289 |
27.16 |
| 2026-06-03 00:00 |
13:46:41.22 |
-07:06:53.6 |
HIP 67289 |
26.91 |
| 2026-06-03 12:00 |
13:46:32.03 |
-07:05:43.7 |
HIP 67289 |
26.89 |
| 2026-06-04 00:00 |
13:46:22.92 |
-07:04:34.3 |
HIP 67289 |
27.12 |
| 2026-06-04 12:00 |
13:46:13.90 |
-07:03:25.5 |
HIP 67289 |
27.57 |
| 2026-06-05 00:00 |
13:46:04.96 |
-07:02:17.3 |
HIP 67289 |
28.24 |
| 2026-06-05 12:00 |
13:45:56.11 |
-07:01:09.7 |
HIP 67289 |
29.09 |
| 2026-06-06 00:00 |
13:45:47.34 |
-07:00:02.7 |
HIP 67289 |
30.11 |
| 2026-06-06 12:00 |
13:45:38.66 |
-06:58:56.2 |
HIP 67289 |
31.27 |
| 2026-06-07 00:00 |
13:45:30.07 |
-06:57:50.3 |
HIP 67289 |
32.56 |
| 2026-06-07 12:00 |
13:45:21.57 |
-06:56:45.0 |
HIP 67289 |
33.96 |
| 2026-06-08 00:00 |
13:45:13.15 |
-06:55:40.3 |
HIP 67289 |
35.44 |
| 2026-06-08 12:00 |
13:45:04.82 |
-06:54:36.2 |
HIP 67289 |
36.99 |
| 2026-06-09 00:00 |
13:44:56.59 |
-06:53:32.7 |
HIP 66972 |
37.90 |
| 2026-06-09 12:00 |
13:44:48.44 |
-06:52:29.8 |
HIP 66972 |
37.78 |
| 2026-06-10 00:00 |
13:44:40.38 |
-06:51:27.5 |
HIP 66972 |
37.80 |
| 2026-06-10 12:00 |
13:44:32.41 |
-06:50:25.7 |
HIP 66972 |
37.95 |
| 2026-06-11 00:00 |
13:44:24.53 |
-06:49:24.6 |
HIP 66853 |
36.39 |
| 2026-06-11 12:00 |
13:44:16.75 |
-06:48:24.1 |
HIP 66853 |
34.79 |
| 2026-06-12 00:00 |
13:44:09.05 |
-06:47:24.2 |
HIP 66853 |
33.27 |
| 2026-06-12 12:00 |
13:44:01.45 |
-06:46:24.9 |
HIP 66853 |
31.84 |
| 2026-06-13 00:00 |
13:43:53.94 |
-06:45:26.2 |
HIP 66853 |
30.51 |
| 2026-06-13 12:00 |
13:43:46.52 |
-06:44:28.2 |
HIP 66853 |
29.28 |
| 2026-06-14 00:00 |
13:43:39.19 |
-06:43:30.7 |
HIP 66853 |
28.17 |
| 2026-06-14 12:00 |
13:43:31.96 |
-06:42:33.9 |
HIP 66853 |
27.19 |
| 2026-06-15 00:00 |
13:43:24.82 |
-06:41:37.6 |
HIP 66853 |
26.33 |
| 2026-06-15 12:00 |
13:43:17.77 |
-06:40:42.0 |
HIP 66853 |
25.62 |
| 2026-06-16 00:00 |
13:43:10.82 |
-06:39:47.0 |
HIP 66853 |
25.04 |
| 2026-06-16 12:00 |
13:43:03.96 |
-06:38:52.7 |
HIP 66853 |
24.62 |
| 2026-06-17 00:00 |
13:42:57.20 |
-06:37:58.9 |
HIP 66853 |
24.35 |
| 2026-06-17 12:00 |
13:42:50.53 |
-06:37:05.8 |
HIP 66853 |
24.23 |
| 2026-06-18 00:00 |
13:42:43.96 |
-06:36:13.3 |
HIP 66853 |
24.25 |
| 2026-06-18 12:00 |
13:42:37.48 |
-06:35:21.4 |
HIP 66853 |
24.41 |
| 2026-06-19 00:00 |
13:42:31.09 |
-06:34:30.1 |
HIP 66853 |
24.70 |
| 2026-06-19 12:00 |
13:42:24.80 |
-06:33:39.4 |
HIP 66764 |
23.74 |
| 2026-06-20 00:00 |
13:42:18.61 |
-06:32:49.4 |
HIP 66764 |
21.99 |
| 2026-06-20 12:00 |
13:42:12.51 |
-06:32:00.0 |
HIP 66764 |
20.27 |
| 2026-06-21 00:00 |
13:42:06.51 |
-06:31:11.2 |
HIP 66764 |
18.58 |
| 2026-06-21 12:00 |
13:42:00.60 |
-06:30:23.0 |
HIP 66764 |
16.91 |
| 2026-06-22 00:00 |
13:41:54.79 |
-06:29:35.5 |
HIP 66764 |
15.27 |