메타데이터
| 항목 |
값 |
| Designation |
C/2024 X1 (Fazekas) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-08-03T10:20:19.703040Z |
| Orbit solution date (soln_date, UTC) |
2026-04-27T13:42:21Z |
| Obs used |
173 |
| NEO |
- |
| M1 |
14.300 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-12-11T05:13:51.398400Z |
| Discovery magnitude (MPC) |
19.36 G |
| Discovery observatory (MPC) |
G96 · Mt. Lemmon Survey |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2025-07-16.0000000 |
| e |
0.59650357 |
| q (au) |
3.816724 |
| a (au) |
9.459127 |
| i (deg) |
6.464644 |
| Ω (om, deg) |
351.989979 |
| ω (w, deg) |
124.357332 |
| M (ma, deg) |
359.375588 |
밝기
산란 + 전체 선형
$$
M_a = (7.869 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.869 |
| n |
6.000 |
| gf |
0.884 |
| gb |
-0.784 |
| k |
0.998 |
| δ90 |
3.956 |
| 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) |
| 2026-05-12 00:00 |
09:56:23.43 |
+14:03:07.0 |
HIP 48736 |
2.49 |
| 2026-05-12 12:00 |
09:56:36.60 |
+14:01:17.8 |
HIP 48736 |
2.16 |
| 2026-05-13 00:00 |
09:56:49.95 |
+13:59:27.7 |
HIP 48736 |
5.54 |
| 2026-05-13 12:00 |
09:57:03.47 |
+13:57:36.8 |
HIP 48736 |
9.23 |
| 2026-05-14 00:00 |
09:57:17.16 |
+13:55:45.1 |
HIP 48753 |
11.11 |
| 2026-05-14 12:00 |
09:57:31.03 |
+13:53:52.6 |
HIP 48753 |
13.45 |
| 2026-05-15 00:00 |
09:57:45.06 |
+13:51:59.2 |
HIP 48825 |
15.08 |
| 2026-05-15 12:00 |
09:57:59.26 |
+13:50:05.1 |
HIP 48855 |
13.75 |
| 2026-05-16 00:00 |
09:58:13.64 |
+13:48:10.1 |
HIP 48855 |
12.80 |
| 2026-05-16 12:00 |
09:58:28.17 |
+13:46:14.4 |
HIP 48855 |
13.07 |
| 2026-05-17 00:00 |
09:58:42.88 |
+13:44:17.8 |
HIP 48855 |
14.52 |
| 2026-05-17 12:00 |
09:58:57.75 |
+13:42:20.5 |
HIP 48855 |
16.89 |
| 2026-05-18 00:00 |
09:59:12.78 |
+13:40:22.3 |
HIP 49002 |
16.02 |
| 2026-05-18 12:00 |
09:59:27.98 |
+13:38:23.4 |
HIP 49002 |
12.46 |
| 2026-05-19 00:00 |
09:59:43.33 |
+13:36:23.7 |
HIP 49002 |
9.43 |
| 2026-05-19 12:00 |
09:59:58.85 |
+13:34:23.2 |
HIP 49002 |
7.63 |
| 2026-05-20 00:00 |
10:00:14.52 |
+13:32:21.9 |
HIP 49002 |
8.03 |
| 2026-05-20 12:00 |
10:00:30.35 |
+13:30:19.8 |
HIP 49002 |
10.42 |
| 2026-05-21 00:00 |
10:00:46.34 |
+13:28:17.0 |
HIP 49002 |
13.84 |
| 2026-05-21 12:00 |
10:01:02.48 |
+13:26:13.4 |
HIP 49140 |
10.20 |
| 2026-05-22 00:00 |
10:01:18.77 |
+13:24:09.1 |
HIP 49140 |
6.12 |
| 2026-05-22 12:00 |
10:01:35.22 |
+13:22:04.0 |
HIP 49140 |
3.29 |
| 2026-05-23 00:00 |
10:01:51.82 |
+13:19:58.2 |
HIP 49140 |
5.01 |
| 2026-05-23 12:00 |
10:02:08.56 |
+13:17:51.7 |
HIP 49140 |
9.02 |
| 2026-05-24 00:00 |
10:02:25.45 |
+13:15:44.4 |
HIP 49140 |
13.44 |
| 2026-05-24 12:00 |
10:02:42.49 |
+13:13:36.3 |
HIP 49140 |
18.00 |
| 2026-05-25 00:00 |
10:02:59.68 |
+13:11:27.6 |
HIP 49247 |
20.80 |
| 2026-05-25 12:00 |
10:03:17.01 |
+13:09:18.1 |
HIP 49247 |
18.45 |
| 2026-05-26 00:00 |
10:03:34.48 |
+13:07:07.9 |
HIP 49247 |
17.12 |
| 2026-05-26 12:00 |
10:03:52.09 |
+13:04:57.0 |
HIP 49247 |
17.08 |
| 2026-05-27 00:00 |
10:04:09.84 |
+13:02:45.3 |
HIP 49381 |
16.09 |
| 2026-05-27 12:00 |
10:04:27.74 |
+13:00:33.0 |
HIP 49381 |
11.65 |
| 2026-05-28 00:00 |
10:04:45.77 |
+12:58:20.0 |
HIP 49381 |
7.76 |
| 2026-05-28 12:00 |
10:05:03.93 |
+12:56:06.2 |
HIP 49381 |
5.74 |
| 2026-05-29 00:00 |
10:05:22.24 |
+12:53:51.8 |
HIP 49381 |
7.44 |
| 2026-05-29 12:00 |
10:05:40.67 |
+12:51:36.7 |
HIP 49381 |
11.33 |
| 2026-05-30 00:00 |
10:05:59.24 |
+12:49:20.9 |
HIP 49518 |
9.57 |
| 2026-05-30 12:00 |
10:06:17.94 |
+12:47:04.4 |
HIP 49518 |
4.71 |
| 2026-05-31 00:00 |
10:06:36.77 |
+12:44:47.3 |
HIP 49518 |
2.14 |
| 2026-05-31 12:00 |
10:06:55.74 |
+12:42:29.4 |
HIP 49518 |
6.33 |
| 2026-06-01 00:00 |
10:07:14.83 |
+12:40:10.9 |
HIP 49518 |
11.38 |
| 2026-06-01 12:00 |
10:07:34.05 |
+12:37:51.7 |
HIP 49655 |
15.60 |
| 2026-06-02 00:00 |
10:07:53.39 |
+12:35:31.9 |
HIP 49655 |
15.32 |