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) |
| 2026-07-29 00:00 |
08:19:40.94 |
-56:39:34.3 |
HIP 40838 |
12.26 |
| 2026-07-29 12:00 |
08:20:03.50 |
-56:39:02.1 |
HIP 40838 |
12.46 |
| 2026-07-30 00:00 |
08:20:26.00 |
-56:38:31.6 |
HIP 40838 |
13.39 |
| 2026-07-30 12:00 |
08:20:48.45 |
-56:38:02.8 |
HIP 40838 |
14.90 |
| 2026-07-31 00:00 |
08:21:10.84 |
-56:37:35.7 |
HIP 40838 |
16.83 |
| 2026-07-31 12:00 |
08:21:33.18 |
-56:37:10.2 |
HIP 40838 |
19.04 |
| 2026-08-01 00:00 |
08:21:55.45 |
-56:36:46.4 |
HIP 40838 |
21.45 |
| 2026-08-01 12:00 |
08:22:17.66 |
-56:36:24.3 |
HIP 40838 |
23.99 |
| 2026-08-02 00:00 |
08:22:39.82 |
-56:36:03.8 |
HIP 41289 |
24.97 |
| 2026-08-02 12:00 |
08:23:01.91 |
-56:35:45.0 |
HIP 41289 |
22.35 |
| 2026-08-03 00:00 |
08:23:23.94 |
-56:35:27.8 |
HIP 41289 |
19.85 |
| 2026-08-03 12:00 |
08:23:45.91 |
-56:35:12.3 |
HIP 41289 |
17.51 |
| 2026-08-04 00:00 |
08:24:07.82 |
-56:34:58.4 |
HIP 41289 |
15.40 |
| 2026-08-04 12:00 |
08:24:29.66 |
-56:34:46.2 |
HIP 41289 |
13.62 |
| 2026-08-05 00:00 |
08:24:51.44 |
-56:34:35.6 |
HIP 41289 |
12.30 |
| 2026-08-05 12:00 |
08:25:13.15 |
-56:34:26.7 |
HIP 41289 |
11.60 |
| 2026-08-06 00:00 |
08:25:34.80 |
-56:34:19.4 |
HIP 41289 |
11.62 |
| 2026-08-06 12:00 |
08:25:56.38 |
-56:34:13.7 |
HIP 41289 |
12.34 |
| 2026-08-07 00:00 |
08:26:17.89 |
-56:34:09.6 |
HIP 41289 |
13.66 |
| 2026-08-07 12:00 |
08:26:39.34 |
-56:34:07.2 |
HIP 41289 |
15.41 |
| 2026-08-08 00:00 |
08:27:00.71 |
-56:34:06.4 |
HIP 41289 |
17.46 |
| 2026-08-08 12:00 |
08:27:22.02 |
-56:34:07.2 |
HIP 41289 |
19.71 |
| 2026-08-09 00:00 |
08:27:43.25 |
-56:34:09.6 |
HIP 41289 |
22.09 |
| 2026-08-09 12:00 |
08:28:04.41 |
-56:34:13.6 |
HIP 41289 |
24.57 |
| 2026-08-10 00:00 |
08:28:25.50 |
-56:34:19.2 |
HIP 41289 |
27.12 |
| 2026-08-10 12:00 |
08:28:46.52 |
-56:34:26.4 |
HIP 41864 |
28.42 |
| 2026-08-11 00:00 |
08:29:07.46 |
-56:34:35.2 |
HIP 41864 |
25.54 |
| 2026-08-11 12:00 |
08:29:28.32 |
-56:34:45.6 |
HIP 41864 |
22.67 |
| 2026-08-12 00:00 |
08:29:49.11 |
-56:34:57.6 |
HIP 41864 |
19.81 |
| 2026-08-12 12:00 |
08:30:09.82 |
-56:35:11.1 |
HIP 41864 |
16.96 |
| 2026-08-13 00:00 |
08:30:30.45 |
-56:35:26.2 |
HIP 41864 |
14.12 |
| 2026-08-13 12:00 |
08:30:51.00 |
-56:35:42.9 |
HIP 41864 |
11.30 |
| 2026-08-14 00:00 |
08:31:11.47 |
-56:36:01.2 |
HIP 41864 |
8.48 |
| 2026-08-14 12:00 |
08:31:31.86 |
-56:36:21.0 |
HIP 41864 |
5.69 |
| 2026-08-15 00:00 |
08:31:52.16 |
-56:36:42.3 |
HIP 41864 |
2.96 |
| 2026-08-15 12:00 |
08:32:12.39 |
-56:37:05.2 |
HIP 41864 |
0.96 |
| 2026-08-16 00:00 |
08:32:32.52 |
-56:37:29.6 |
HIP 41864 |
2.96 |
| 2026-08-16 12:00 |
08:32:52.57 |
-56:37:55.6 |
HIP 41864 |
5.67 |
| 2026-08-17 00:00 |
08:33:12.54 |
-56:38:23.0 |
HIP 41864 |
8.42 |
| 2026-08-17 12:00 |
08:33:32.42 |
-56:38:52.0 |
HIP 41864 |
11.17 |
| 2026-08-18 00:00 |
08:33:52.20 |
-56:39:22.5 |
HIP 41864 |
13.93 |
| 2026-08-18 12:00 |
08:34:11.90 |
-56:39:54.5 |
HIP 42191 |
16.49 |
| 2026-08-19 00:00 |
08:34:31.51 |
-56:40:28.0 |
HIP 42191 |
13.74 |