메타데이터
| 항목 |
값 |
| Designation |
C/2022 S3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2023-01-21T16:27:20.963520Z |
| Orbit solution date (soln_date, UTC) |
2022-11-10T22:12:52Z |
| Obs used |
75 |
| NEO |
- |
| M1 |
13.900 |
| K1 |
18.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-09-25T06:08:52.569600Z |
| Discovery magnitude (MPC) |
20.88 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-10-05.0000000 |
| e |
1.00041119 |
| q (au) |
0.838456 |
| a (au) |
-2039.091991 |
| i (deg) |
78.560279 |
| Ω (om, deg) |
157.321243 |
| ω (w, deg) |
267.959178 |
| M (ma, deg) |
-0.001163 |
밝기
산란 + 전체 선형
$$
M_a = (15.426 + 4.862\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
15.426 |
| n |
4.862 |
| gf |
0.800 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
1.000 |
| 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 |
13:29:46.71 |
+55:15:35.0 |
HIP 65960 |
24.83 |
| 2026-05-12 12:00 |
13:29:33.64 |
+55:15:00.2 |
HIP 65960 |
25.50 |
| 2026-05-13 00:00 |
13:29:20.66 |
+55:14:24.1 |
HIP 65960 |
26.28 |
| 2026-05-13 12:00 |
13:29:07.78 |
+55:13:46.9 |
HIP 65960 |
27.15 |
| 2026-05-14 00:00 |
13:28:54.98 |
+55:13:08.5 |
HIP 65960 |
28.11 |
| 2026-05-14 12:00 |
13:28:42.28 |
+55:12:29.0 |
HIP 65960 |
29.15 |
| 2026-05-15 00:00 |
13:28:29.67 |
+55:11:48.2 |
HIP 65960 |
30.25 |
| 2026-05-15 12:00 |
13:28:17.15 |
+55:11:06.4 |
HIP 65477 |
28.83 |
| 2026-05-16 00:00 |
13:28:04.73 |
+55:10:23.3 |
HIP 65477 |
26.92 |
| 2026-05-16 12:00 |
13:27:52.41 |
+55:09:39.2 |
HIP 65477 |
25.01 |
| 2026-05-17 00:00 |
13:27:40.18 |
+55:08:53.9 |
HIP 65477 |
23.11 |
| 2026-05-17 12:00 |
13:27:28.06 |
+55:08:07.5 |
HIP 65477 |
21.21 |
| 2026-05-18 00:00 |
13:27:16.03 |
+55:07:19.9 |
HIP 65477 |
19.32 |
| 2026-05-18 12:00 |
13:27:04.11 |
+55:06:31.3 |
HIP 65477 |
17.43 |
| 2026-05-19 00:00 |
13:26:52.29 |
+55:05:41.6 |
HIP 65477 |
15.55 |
| 2026-05-19 12:00 |
13:26:40.57 |
+55:04:50.7 |
HIP 65477 |
13.67 |
| 2026-05-20 00:00 |
13:26:28.96 |
+55:03:58.9 |
HIP 65477 |
11.80 |
| 2026-05-20 12:00 |
13:26:17.45 |
+55:03:05.9 |
HIP 65477 |
9.94 |
| 2026-05-21 00:00 |
13:26:06.05 |
+55:02:11.9 |
HIP 65477 |
8.09 |
| 2026-05-21 12:00 |
13:25:54.76 |
+55:01:16.8 |
HIP 65477 |
6.26 |
| 2026-05-22 00:00 |
13:25:43.57 |
+55:00:20.7 |
HIP 65477 |
4.45 |
| 2026-05-22 12:00 |
13:25:32.50 |
+54:59:23.5 |
HIP 65477 |
2.74 |
| 2026-05-23 00:00 |
13:25:21.53 |
+54:58:25.4 |
HIP 65477 |
1.45 |
| 2026-05-23 12:00 |
13:25:10.68 |
+54:57:26.2 |
HIP 65477 |
1.88 |
| 2026-05-24 00:00 |
13:24:59.94 |
+54:56:26.0 |
HIP 65477 |
3.44 |
| 2026-05-24 12:00 |
13:24:49.30 |
+54:55:24.9 |
HIP 65477 |
5.19 |
| 2026-05-25 00:00 |
13:24:38.79 |
+54:54:22.7 |
HIP 65378 |
6.34 |
| 2026-05-25 12:00 |
13:24:28.38 |
+54:53:19.6 |
HIP 65378 |
5.22 |
| 2026-05-26 00:00 |
13:24:18.09 |
+54:52:15.5 |
HIP 65378 |
4.61 |
| 2026-05-26 12:00 |
13:24:07.91 |
+54:51:10.4 |
HIP 65378 |
4.71 |
| 2026-05-27 00:00 |
13:23:57.85 |
+54:50:04.5 |
HIP 65378 |
5.46 |
| 2026-05-27 12:00 |
13:23:47.91 |
+54:48:57.5 |
HIP 65378 |
6.65 |
| 2026-05-28 00:00 |
13:23:38.08 |
+54:47:49.7 |
HIP 65378 |
8.09 |
| 2026-05-28 12:00 |
13:23:28.37 |
+54:46:40.9 |
HIP 65378 |
9.66 |
| 2026-05-29 00:00 |
13:23:18.77 |
+54:45:31.2 |
HIP 65378 |
11.31 |
| 2026-05-29 12:00 |
13:23:09.30 |
+54:44:20.6 |
HIP 65378 |
13.00 |
| 2026-05-30 00:00 |
13:22:59.94 |
+54:43:09.2 |
HIP 65378 |
14.73 |
| 2026-05-30 12:00 |
13:22:50.70 |
+54:41:56.8 |
HIP 65378 |
16.47 |
| 2026-05-31 00:00 |
13:22:41.59 |
+54:40:43.6 |
HIP 65378 |
18.23 |
| 2026-05-31 12:00 |
13:22:32.59 |
+54:39:29.5 |
HIP 65378 |
19.99 |
| 2026-06-01 00:00 |
13:22:23.71 |
+54:38:14.6 |
HIP 65378 |
21.76 |
| 2026-06-01 12:00 |
13:22:14.95 |
+54:36:58.8 |
HIP 65378 |
23.53 |
| 2026-06-02 00:00 |
13:22:06.32 |
+54:35:42.2 |
HIP 65378 |
25.31 |