메타데이터
| 항목 |
값 |
| Designation |
C/2024 F2 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2024-07-29T05:46:49.535040Z |
| Orbit solution date (soln_date, UTC) |
2026-04-03T09:12:19Z |
| Obs used |
223 |
| NEO |
- |
| M1 |
7.500 |
| K1 |
15.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-03-21T14:31:59.174400Z |
| Discovery magnitude (MPC) |
21.01 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2024-08-21.0000000 |
| e |
0.60120060 |
| q (au) |
3.968209 |
| a (au) |
9.950389 |
| i (deg) |
13.740805 |
| Ω (om, deg) |
138.947892 |
| ω (w, deg) |
112.924995 |
| M (ma, deg) |
0.714661 |
밝기
산란 + 전체 선형
$$
M_a = (7.448 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.448 |
| n |
6.000 |
| gf |
0.879 |
| gb |
-0.872 |
| k |
1.000 |
| δ90 |
6.783 |
| 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 |
22:50:44.49 |
-10:15:14.6 |
HIP 112757 |
13.05 |
| 2026-05-12 12:00 |
22:50:59.07 |
-10:14:32.6 |
HIP 112757 |
16.21 |
| 2026-05-13 00:00 |
22:51:13.52 |
-10:13:51.4 |
HIP 112757 |
19.51 |
| 2026-05-13 12:00 |
22:51:27.84 |
-10:13:11.1 |
HIP 112974 |
21.60 |
| 2026-05-14 00:00 |
22:51:42.05 |
-10:12:31.5 |
HIP 112974 |
18.20 |
| 2026-05-14 12:00 |
22:51:56.13 |
-10:11:52.9 |
HIP 112974 |
14.92 |
| 2026-05-15 00:00 |
22:52:10.08 |
-10:11:15.0 |
HIP 112974 |
11.80 |
| 2026-05-15 12:00 |
22:52:23.91 |
-10:10:38.0 |
HIP 112974 |
9.00 |
| 2026-05-16 00:00 |
22:52:37.61 |
-10:10:01.9 |
HIP 112974 |
6.85 |
| 2026-05-16 12:00 |
22:52:51.19 |
-10:09:26.6 |
HIP 112974 |
6.03 |
| 2026-05-17 00:00 |
22:53:04.64 |
-10:08:52.1 |
HIP 112974 |
6.98 |
| 2026-05-17 12:00 |
22:53:17.96 |
-10:08:18.6 |
HIP 112974 |
9.13 |
| 2026-05-18 00:00 |
22:53:31.15 |
-10:07:45.9 |
HIP 112974 |
11.81 |
| 2026-05-18 12:00 |
22:53:44.21 |
-10:07:14.1 |
HIP 112974 |
14.71 |
| 2026-05-19 00:00 |
22:53:57.15 |
-10:06:43.1 |
HIP 113123 |
13.86 |
| 2026-05-19 12:00 |
22:54:09.95 |
-10:06:13.1 |
HIP 113123 |
12.75 |
| 2026-05-20 00:00 |
22:54:22.62 |
-10:05:43.9 |
HIP 113123 |
12.37 |
| 2026-05-20 12:00 |
22:54:35.17 |
-10:05:15.6 |
HIP 113199 |
12.72 |
| 2026-05-21 00:00 |
22:54:47.58 |
-10:04:48.3 |
HIP 113199 |
9.78 |
| 2026-05-21 12:00 |
22:54:59.86 |
-10:04:21.8 |
HIP 113199 |
6.99 |
| 2026-05-22 00:00 |
22:55:12.00 |
-10:03:56.2 |
HIP 113199 |
4.56 |
| 2026-05-22 12:00 |
22:55:24.01 |
-10:03:31.5 |
HIP 113199 |
3.32 |
| 2026-05-23 00:00 |
22:55:35.90 |
-10:03:07.7 |
HIP 113199 |
4.33 |
| 2026-05-23 12:00 |
22:55:47.64 |
-10:02:44.8 |
HIP 113199 |
6.59 |
| 2026-05-24 00:00 |
22:55:59.25 |
-10:02:22.9 |
HIP 113199 |
9.19 |
| 2026-05-24 12:00 |
22:56:10.73 |
-10:02:01.8 |
HIP 113199 |
11.88 |
| 2026-05-25 00:00 |
22:56:22.07 |
-10:01:41.7 |
HIP 113199 |
14.60 |
| 2026-05-25 12:00 |
22:56:33.28 |
-10:01:22.5 |
HIP 113310 |
14.94 |
| 2026-05-26 00:00 |
22:56:44.35 |
-10:01:04.2 |
HIP 113310 |
14.76 |
| 2026-05-26 12:00 |
22:56:55.29 |
-10:00:46.8 |
HIP 113310 |
15.07 |
| 2026-05-27 00:00 |
22:57:06.09 |
-10:00:30.4 |
HIP 113310 |
15.81 |
| 2026-05-27 12:00 |
22:57:16.75 |
-10:00:14.9 |
HIP 113310 |
16.93 |
| 2026-05-28 00:00 |
22:57:27.28 |
-10:00:00.3 |
HIP 113310 |
18.32 |
| 2026-05-28 12:00 |
22:57:37.67 |
-09:59:46.7 |
HIP 113310 |
19.93 |
| 2026-05-29 00:00 |
22:57:47.91 |
-09:59:34.0 |
HIP 113310 |
21.68 |
| 2026-05-29 12:00 |
22:57:58.03 |
-09:59:22.2 |
HIP 113310 |
23.55 |
| 2026-05-30 00:00 |
22:58:08.00 |
-09:59:11.4 |
HIP 113310 |
25.48 |
| 2026-05-30 12:00 |
22:58:17.83 |
-09:59:01.5 |
HIP 113310 |
27.46 |
| 2026-05-31 00:00 |
22:58:27.52 |
-09:58:52.6 |
HIP 113310 |
29.48 |
| 2026-05-31 12:00 |
22:58:37.07 |
-09:58:44.6 |
HIP 113310 |
31.50 |
| 2026-06-01 00:00 |
22:58:46.48 |
-09:58:37.6 |
HIP 113310 |
33.53 |
| 2026-06-01 12:00 |
22:58:55.75 |
-09:58:31.6 |
HIP 113310 |
35.56 |
| 2026-06-02 00:00 |
22:59:04.88 |
-09:58:26.5 |
HIP 113310 |
37.58 |