메타데이터
| 항목 |
값 |
| Designation |
C/2023 Q2 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2024-06-24T02:17:12.935040Z |
| Orbit solution date (soln_date, UTC) |
2024-07-07T00:42:12Z |
| Obs used |
136 |
| NEO |
- |
| M1 |
11.400 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-08-23T06:04:38.208000Z |
| Discovery magnitude (MPC) |
21.14 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2023-10-03.0000000 |
| e |
0.99053833 |
| q (au) |
3.209446 |
| a (au) |
339.205025 |
| i (deg) |
104.054511 |
| Ω (om, deg) |
92.682369 |
| ω (w, deg) |
171.725609 |
| M (ma, deg) |
359.958177 |
밝기
산란 + 전체 선형
$$
M_a = (13.694 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.694 |
| n |
2.000 |
| 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) |
| 2026-09-20 00:00 |
08:51:39.35 |
-58:02:49.9 |
HIP 43455 |
17.41 |
| 2026-09-20 12:00 |
08:51:51.13 |
-58:04:45.7 |
HIP 43512 |
17.21 |
| 2026-09-21 00:00 |
08:52:02.75 |
-58:06:42.6 |
HIP 43512 |
15.42 |
| 2026-09-21 12:00 |
08:52:14.22 |
-58:08:40.3 |
HIP 43512 |
13.82 |
| 2026-09-22 00:00 |
08:52:25.52 |
-58:10:39.1 |
HIP 43512 |
12.48 |
| 2026-09-22 12:00 |
08:52:36.67 |
-58:12:38.8 |
HIP 43512 |
11.50 |
| 2026-09-23 00:00 |
08:52:47.65 |
-58:14:39.5 |
HIP 43512 |
10.97 |
| 2026-09-23 12:00 |
08:52:58.47 |
-58:16:41.2 |
HIP 43512 |
10.96 |
| 2026-09-24 00:00 |
08:53:09.13 |
-58:18:43.8 |
HIP 43512 |
11.46 |
| 2026-09-24 12:00 |
08:53:19.63 |
-58:20:47.3 |
HIP 43605 |
10.96 |
| 2026-09-25 00:00 |
08:53:29.96 |
-58:22:51.7 |
HIP 43605 |
9.71 |
| 2026-09-25 12:00 |
08:53:40.12 |
-58:24:57.0 |
HIP 43605 |
8.96 |
| 2026-09-26 00:00 |
08:53:50.12 |
-58:27:03.3 |
HIP 43605 |
8.84 |
| 2026-09-26 12:00 |
08:53:59.95 |
-58:29:10.4 |
HIP 43605 |
9.36 |
| 2026-09-27 00:00 |
08:54:09.61 |
-58:31:18.4 |
HIP 43605 |
10.44 |
| 2026-09-27 12:00 |
08:54:19.10 |
-58:33:27.3 |
HIP 43796 |
10.45 |
| 2026-09-28 00:00 |
08:54:28.41 |
-58:35:37.1 |
HIP 43796 |
8.02 |
| 2026-09-28 12:00 |
08:54:37.55 |
-58:37:47.7 |
HIP 43796 |
5.66 |
| 2026-09-29 00:00 |
08:54:46.52 |
-58:39:59.2 |
HIP 43796 |
3.48 |
| 2026-09-29 12:00 |
08:54:55.31 |
-58:42:11.5 |
HIP 43796 |
2.15 |
| 2026-09-30 00:00 |
08:55:03.93 |
-58:44:24.6 |
HIP 43796 |
3.10 |
| 2026-09-30 12:00 |
08:55:12.37 |
-58:46:38.6 |
HIP 43796 |
5.21 |
| 2026-10-01 00:00 |
08:55:20.62 |
-58:48:53.3 |
HIP 43796 |
7.56 |
| 2026-10-01 12:00 |
08:55:28.70 |
-58:51:08.9 |
HIP 43796 |
9.98 |
| 2026-10-02 00:00 |
08:55:36.59 |
-58:53:25.2 |
HIP 43796 |
12.44 |
| 2026-10-02 12:00 |
08:55:44.30 |
-58:55:42.3 |
HIP 43796 |
14.91 |
| 2026-10-03 00:00 |
08:55:51.83 |
-58:58:00.2 |
HIP 43796 |
17.39 |
| 2026-10-03 12:00 |
08:55:59.17 |
-59:00:18.9 |
HIP 43937 |
15.45 |
| 2026-10-04 00:00 |
08:56:06.31 |
-59:02:38.3 |
HIP 43937 |
12.98 |
| 2026-10-04 12:00 |
08:56:13.27 |
-59:04:58.5 |
HIP 43937 |
10.52 |
| 2026-10-05 00:00 |
08:56:20.04 |
-59:07:19.4 |
HIP 43937 |
8.10 |
| 2026-10-05 12:00 |
08:56:26.62 |
-59:09:41.0 |
HIP 43937 |
5.76 |
| 2026-10-06 00:00 |
08:56:33.00 |
-59:12:03.3 |
HIP 43937 |
3.67 |
| 2026-10-06 12:00 |
08:56:39.18 |
-59:14:26.3 |
HIP 43937 |
2.55 |
| 2026-10-07 00:00 |
08:56:45.17 |
-59:16:49.9 |
HIP 43937 |
3.51 |
| 2026-10-07 12:00 |
08:56:50.96 |
-59:19:14.3 |
HIP 43937 |
5.56 |
| 2026-10-08 00:00 |
08:56:56.55 |
-59:21:39.3 |
HIP 43937 |
7.90 |
| 2026-10-08 12:00 |
08:57:01.94 |
-59:24:04.9 |
HIP 43848 |
8.98 |
| 2026-10-09 00:00 |
08:57:07.12 |
-59:26:31.2 |
HIP 43848 |
9.59 |
| 2026-10-09 12:00 |
08:57:12.10 |
-59:28:58.1 |
HIP 43848 |
10.74 |
| 2026-10-10 00:00 |
08:57:16.87 |
-59:31:25.6 |
HIP 43848 |
12.29 |
| 2026-10-10 12:00 |
08:57:21.43 |
-59:33:53.7 |
HIP 44068 |
13.90 |
| 2026-10-11 00:00 |
08:57:25.79 |
-59:36:22.4 |
HIP 44068 |
11.75 |