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) |
| 2026-07-29 00:00 |
13:19:19.19 |
+51:17:05.9 |
HIP 64898 |
16.88 |
| 2026-07-29 12:00 |
13:19:24.38 |
+51:15:12.7 |
HIP 64898 |
18.85 |
| 2026-07-30 00:00 |
13:19:29.68 |
+51:13:19.6 |
HIP 64898 |
20.85 |
| 2026-07-30 12:00 |
13:19:35.07 |
+51:11:26.6 |
HIP 64898 |
22.86 |
| 2026-07-31 00:00 |
13:19:40.56 |
+51:09:33.9 |
HIP 64847 |
24.73 |
| 2026-07-31 12:00 |
13:19:46.14 |
+51:07:41.2 |
HIP 64847 |
26.57 |
| 2026-08-01 00:00 |
13:19:51.82 |
+51:05:48.8 |
HIP 64847 |
28.46 |
| 2026-08-01 12:00 |
13:19:57.60 |
+51:03:56.5 |
HIP 64847 |
30.38 |
| 2026-08-02 00:00 |
13:20:03.47 |
+51:02:04.4 |
HIP 65331 |
31.76 |
| 2026-08-02 12:00 |
13:20:09.44 |
+51:00:12.5 |
HIP 65331 |
31.01 |
| 2026-08-03 00:00 |
13:20:15.50 |
+50:58:20.7 |
HIP 65331 |
30.36 |
| 2026-08-03 12:00 |
13:20:21.66 |
+50:56:29.2 |
HIP 65331 |
29.83 |
| 2026-08-04 00:00 |
13:20:27.91 |
+50:54:37.9 |
HIP 65031 |
29.32 |
| 2026-08-04 12:00 |
13:20:34.25 |
+50:52:46.8 |
HIP 65031 |
27.76 |
| 2026-08-05 00:00 |
13:20:40.69 |
+50:50:55.9 |
HIP 65031 |
26.29 |
| 2026-08-05 12:00 |
13:20:47.21 |
+50:49:05.2 |
HIP 65031 |
24.93 |
| 2026-08-06 00:00 |
13:20:53.83 |
+50:47:14.8 |
HIP 65031 |
23.68 |
| 2026-08-06 12:00 |
13:21:00.54 |
+50:45:24.6 |
HIP 65031 |
22.57 |
| 2026-08-07 00:00 |
13:21:07.34 |
+50:43:34.6 |
HIP 65031 |
21.63 |
| 2026-08-07 12:00 |
13:21:14.23 |
+50:41:44.9 |
HIP 65031 |
20.88 |
| 2026-08-08 00:00 |
13:21:21.21 |
+50:39:55.5 |
HIP 65031 |
20.34 |
| 2026-08-08 12:00 |
13:21:28.28 |
+50:38:06.3 |
HIP 65031 |
20.03 |
| 2026-08-09 00:00 |
13:21:35.44 |
+50:36:17.4 |
HIP 65031 |
19.95 |
| 2026-08-09 12:00 |
13:21:42.68 |
+50:34:28.7 |
HIP 65322 |
18.11 |
| 2026-08-10 00:00 |
13:21:50.01 |
+50:32:40.4 |
HIP 65322 |
16.18 |
| 2026-08-10 12:00 |
13:21:57.43 |
+50:30:52.3 |
HIP 65322 |
14.29 |
| 2026-08-11 00:00 |
13:22:04.93 |
+50:29:04.5 |
HIP 65322 |
12.48 |
| 2026-08-11 12:00 |
13:22:12.52 |
+50:27:17.0 |
HIP 65322 |
10.79 |
| 2026-08-12 00:00 |
13:22:20.20 |
+50:25:29.9 |
HIP 65322 |
9.28 |
| 2026-08-12 12:00 |
13:22:27.96 |
+50:23:43.0 |
HIP 65322 |
8.05 |
| 2026-08-13 00:00 |
13:22:35.80 |
+50:21:56.5 |
HIP 65322 |
7.26 |
| 2026-08-13 12:00 |
13:22:43.73 |
+50:20:10.3 |
HIP 65322 |
7.06 |
| 2026-08-14 00:00 |
13:22:51.74 |
+50:18:24.4 |
HIP 65322 |
7.50 |
| 2026-08-14 12:00 |
13:22:59.83 |
+50:16:38.9 |
HIP 65322 |
8.49 |
| 2026-08-15 00:00 |
13:23:08.00 |
+50:14:53.8 |
HIP 65322 |
9.85 |
| 2026-08-15 12:00 |
13:23:16.26 |
+50:13:08.9 |
HIP 65322 |
11.47 |
| 2026-08-16 00:00 |
13:23:24.59 |
+50:11:24.5 |
HIP 65322 |
13.24 |
| 2026-08-16 12:00 |
13:23:33.00 |
+50:09:40.4 |
HIP 65424 |
14.41 |
| 2026-08-17 00:00 |
13:23:41.49 |
+50:07:56.7 |
HIP 65424 |
12.23 |
| 2026-08-17 12:00 |
13:23:50.06 |
+50:06:13.3 |
HIP 65424 |
10.04 |
| 2026-08-18 00:00 |
13:23:58.71 |
+50:04:30.4 |
HIP 65424 |
7.86 |
| 2026-08-18 12:00 |
13:24:07.43 |
+50:02:47.8 |
HIP 65424 |
5.70 |
| 2026-08-19 00:00 |
13:24:16.23 |
+50:01:05.7 |
HIP 65424 |
3.57 |