메타데이터
| 항목 |
값 |
| Designation |
C/2024 X1 (Fazekas) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-08-03T10:01:48.400320Z |
| Orbit solution date (soln_date, UTC) |
2026-06-09T11:12:29Z |
| Obs used |
177 |
| NEO |
- |
| M1 |
14.400 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-12-11T05:13:51.398400Z |
| Discovery magnitude (MPC) |
19.36 G |
| Discovery observatory (MPC) |
G96 · University of Arizona Mt. Lemmon Survey |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2025-07-24.0000000 |
| e |
0.59638669 |
| q (au) |
3.816727 |
| a (au) |
9.456396 |
| i (deg) |
6.465048 |
| Ω (om, deg) |
351.984254 |
| ω (w, deg) |
124.360744 |
| M (ma, deg) |
359.646901 |
밝기
산란 + 전체 선형
$$
M_a = (12.815 + 2.661\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.815 |
| n |
2.661 |
| gf |
0.801 |
| gb |
-0.975 |
| k |
1.000 |
| δ90 |
1.001 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
10:54:30.12 |
+07:10:46.9 |
HIP 53420 |
21.50 |
| 2026-07-29 12:00 |
10:54:58.01 |
+07:07:32.4 |
HIP 53420 |
14.13 |
| 2026-07-30 00:00 |
10:55:25.93 |
+07:04:17.7 |
HIP 53420 |
7.32 |
| 2026-07-30 12:00 |
10:55:53.88 |
+07:01:02.6 |
HIP 53420 |
4.97 |
| 2026-07-31 00:00 |
10:56:21.87 |
+06:57:47.3 |
HIP 53420 |
10.64 |
| 2026-07-31 12:00 |
10:56:49.88 |
+06:54:31.7 |
HIP 53420 |
17.88 |
| 2026-08-01 00:00 |
10:57:17.92 |
+06:51:15.9 |
HIP 53420 |
25.39 |
| 2026-08-01 12:00 |
10:57:46.00 |
+06:47:59.8 |
HIP 53697 |
22.34 |
| 2026-08-02 00:00 |
10:58:14.10 |
+06:44:43.4 |
HIP 53697 |
17.84 |
| 2026-08-02 12:00 |
10:58:42.23 |
+06:41:26.8 |
HIP 53697 |
16.01 |
| 2026-08-03 00:00 |
10:59:10.38 |
+06:38:09.9 |
HIP 53697 |
17.70 |
| 2026-08-03 12:00 |
10:59:38.57 |
+06:34:52.8 |
HIP 53697 |
22.13 |
| 2026-08-04 00:00 |
11:00:06.78 |
+06:31:35.4 |
HIP 53824 |
27.20 |
| 2026-08-04 12:00 |
11:00:35.02 |
+06:28:17.8 |
HIP 53824 |
22.34 |
| 2026-08-05 00:00 |
11:01:03.28 |
+06:24:59.9 |
HIP 53824 |
19.46 |
| 2026-08-05 12:00 |
11:01:31.57 |
+06:21:41.7 |
HIP 53824 |
19.45 |
| 2026-08-06 00:00 |
11:01:59.89 |
+06:18:23.4 |
HIP 53824 |
22.34 |
| 2026-08-06 12:00 |
11:02:28.22 |
+06:15:04.8 |
HIP 53824 |
27.22 |
| 2026-08-07 00:00 |
11:02:56.59 |
+06:11:45.9 |
HIP 54093 |
26.90 |
| 2026-08-07 12:00 |
11:03:24.97 |
+06:08:26.9 |
HIP 54093 |
20.06 |
| 2026-08-08 00:00 |
11:03:53.38 |
+06:05:07.6 |
HIP 54093 |
14.22 |
| 2026-08-08 12:00 |
11:04:21.82 |
+06:01:48.0 |
HIP 54093 |
11.13 |
| 2026-08-09 00:00 |
11:04:50.27 |
+05:58:28.3 |
HIP 54093 |
12.96 |
| 2026-08-09 12:00 |
11:05:18.75 |
+05:55:08.3 |
HIP 54109 |
16.58 |
| 2026-08-10 00:00 |
11:05:47.24 |
+05:51:48.1 |
HIP 54109 |
22.29 |
| 2026-08-10 12:00 |
11:06:15.76 |
+05:48:27.7 |
HIP 54378 |
19.40 |
| 2026-08-11 00:00 |
11:06:44.30 |
+05:45:07.1 |
HIP 54378 |
14.03 |
| 2026-08-11 12:00 |
11:07:12.85 |
+05:41:46.3 |
HIP 54378 |
11.85 |
| 2026-08-12 00:00 |
11:07:41.43 |
+05:38:25.3 |
HIP 54378 |
14.40 |
| 2026-08-12 12:00 |
11:08:10.02 |
+05:35:04.2 |
HIP 54378 |
19.95 |
| 2026-08-13 00:00 |
11:08:38.63 |
+05:31:42.8 |
HIP 54563 |
23.44 |
| 2026-08-13 12:00 |
11:09:07.26 |
+05:28:21.2 |
HIP 54563 |
21.00 |
| 2026-08-14 00:00 |
11:09:35.91 |
+05:24:59.4 |
HIP 54563 |
21.36 |
| 2026-08-14 12:00 |
11:10:04.57 |
+05:21:37.5 |
HIP 54563 |
24.41 |
| 2026-08-15 00:00 |
11:10:33.24 |
+05:18:15.4 |
HIP 54660 |
17.12 |
| 2026-08-15 12:00 |
11:11:01.93 |
+05:14:53.2 |
HIP 54660 |
10.18 |
| 2026-08-16 00:00 |
11:11:30.63 |
+05:11:30.7 |
HIP 54660 |
6.26 |
| 2026-08-16 12:00 |
11:11:59.35 |
+05:08:08.1 |
HIP 54660 |
9.98 |
| 2026-08-17 00:00 |
11:12:28.08 |
+05:04:45.4 |
HIP 54788 |
12.13 |
| 2026-08-17 12:00 |
11:12:56.82 |
+05:01:22.5 |
HIP 54788 |
12.72 |
| 2026-08-18 00:00 |
11:13:25.57 |
+04:57:59.4 |
HIP 54788 |
17.38 |
| 2026-08-18 12:00 |
11:13:54.34 |
+04:54:36.2 |
HIP 54900 |
22.92 |
| 2026-08-19 00:00 |
11:14:23.11 |
+04:51:12.9 |
HIP 54985 |
17.98 |