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) |
| 2026-03-26 00:00 |
14:15:15.22 |
-10:43:02.9 |
HIP 69691 |
30.94 |
| 2026-03-26 12:00 |
14:15:03.05 |
-10:41:25.8 |
HIP 69691 |
33.52 |
| 2026-03-27 00:00 |
14:14:50.81 |
-10:39:48.5 |
HIP 69691 |
36.24 |
| 2026-03-27 12:00 |
14:14:38.53 |
-10:38:10.9 |
HIP 69427 |
33.71 |
| 2026-03-28 00:00 |
14:14:26.18 |
-10:36:33.0 |
HIP 69427 |
30.35 |
| 2026-03-28 12:00 |
14:14:13.79 |
-10:34:54.9 |
HIP 69427 |
26.99 |
| 2026-03-29 00:00 |
14:14:01.34 |
-10:33:16.5 |
HIP 69427 |
23.66 |
| 2026-03-29 12:00 |
14:13:48.84 |
-10:31:37.9 |
HIP 69427 |
20.35 |
| 2026-03-30 00:00 |
14:13:36.29 |
-10:29:59.1 |
HIP 69427 |
17.11 |
| 2026-03-30 12:00 |
14:13:23.69 |
-10:28:20.0 |
HIP 69427 |
13.99 |
| 2026-03-31 00:00 |
14:13:11.05 |
-10:26:40.7 |
HIP 69427 |
11.08 |
| 2026-03-31 12:00 |
14:12:58.35 |
-10:25:01.2 |
HIP 69427 |
8.65 |
| 2026-04-01 00:00 |
14:12:45.61 |
-10:23:21.5 |
HIP 69427 |
7.20 |
| 2026-04-01 12:00 |
14:12:32.83 |
-10:21:41.6 |
HIP 69427 |
7.35 |
| 2026-04-02 00:00 |
14:12:20.00 |
-10:20:01.4 |
HIP 69427 |
9.04 |
| 2026-04-02 12:00 |
14:12:07.13 |
-10:18:21.1 |
HIP 69427 |
11.62 |
| 2026-04-03 00:00 |
14:11:54.22 |
-10:16:40.7 |
HIP 69427 |
14.64 |
| 2026-04-03 12:00 |
14:11:41.27 |
-10:15:00.0 |
HIP 69325 |
14.77 |
| 2026-04-04 00:00 |
14:11:28.29 |
-10:13:19.2 |
HIP 69325 |
15.58 |
| 2026-04-04 12:00 |
14:11:15.26 |
-10:11:38.2 |
HIP 69363 |
16.93 |
| 2026-04-05 00:00 |
14:11:02.20 |
-10:09:57.0 |
HIP 69363 |
17.80 |
| 2026-04-05 12:00 |
14:10:49.10 |
-10:08:15.8 |
HIP 69363 |
19.33 |
| 2026-04-06 00:00 |
14:10:35.96 |
-10:06:34.3 |
HIP 69363 |
21.39 |
| 2026-04-06 12:00 |
14:10:22.80 |
-10:04:52.8 |
HIP 69363 |
23.84 |
| 2026-04-07 00:00 |
14:10:09.60 |
-10:03:11.1 |
HIP 69127 |
23.95 |
| 2026-04-07 12:00 |
14:09:56.37 |
-10:01:29.3 |
HIP 69127 |
23.11 |
| 2026-04-08 00:00 |
14:09:43.11 |
-09:59:47.3 |
HIP 69127 |
22.83 |
| 2026-04-08 12:00 |
14:09:29.83 |
-09:58:05.3 |
HIP 69127 |
23.13 |
| 2026-04-09 00:00 |
14:09:16.51 |
-09:56:23.2 |
HIP 69127 |
24.01 |
| 2026-04-09 12:00 |
14:09:03.17 |
-09:54:41.0 |
HIP 69127 |
25.40 |
| 2026-04-10 00:00 |
14:08:49.81 |
-09:52:58.6 |
HIP 69127 |
27.23 |
| 2026-04-10 12:00 |
14:08:36.42 |
-09:51:16.3 |
HIP 69127 |
29.41 |
| 2026-04-11 00:00 |
14:08:23.01 |
-09:49:33.8 |
HIP 68921 |
31.34 |
| 2026-04-11 12:00 |
14:08:09.58 |
-09:47:51.3 |
HIP 68921 |
29.56 |
| 2026-04-12 00:00 |
14:07:56.13 |
-09:46:08.7 |
HIP 68921 |
28.17 |
| 2026-04-12 12:00 |
14:07:42.66 |
-09:44:26.1 |
HIP 68921 |
27.22 |
| 2026-04-13 00:00 |
14:07:29.17 |
-09:42:43.5 |
HIP 68940 |
26.50 |
| 2026-04-13 12:00 |
14:07:15.67 |
-09:41:00.8 |
HIP 68940 |
23.63 |
| 2026-04-14 00:00 |
14:07:02.16 |
-09:39:18.1 |
HIP 68940 |
21.03 |
| 2026-04-14 12:00 |
14:06:48.63 |
-09:37:35.4 |
HIP 68940 |
18.83 |
| 2026-04-15 00:00 |
14:06:35.08 |
-09:35:52.7 |
HIP 68940 |
17.18 |
| 2026-04-15 12:00 |
14:06:21.53 |
-09:34:10.0 |
HIP 68940 |
16.23 |
| 2026-04-16 00:00 |
14:06:07.97 |
-09:32:27.3 |
HIP 68940 |
16.14 |