메타데이터
| 항목 |
값 |
| Designation |
C/2024 Y1 (Masek) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2024-11-26T20:36:13.553280Z |
| Orbit solution date (soln_date, UTC) |
2025-02-13T09:13:00Z |
| Obs used |
98 |
| NEO |
- |
| M1 |
17.800 |
| K1 |
17.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-12-25T01:50:03.552000Z |
| Discovery magnitude (MPC) |
15.30 V |
| Discovery observatory (MPC) |
I47 · Pierre Auger Observatory, Malargüe |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2024-12-31.0000000 |
| e |
0.98668110 |
| q (au) |
0.822345 |
| a (au) |
61.742672 |
| i (deg) |
64.749901 |
| Ω (om, deg) |
112.545653 |
| ω (w, deg) |
238.138955 |
| M (ma, deg) |
0.069360 |
밝기
산란 + 전체 선형
$$
M_a = (15.657 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
15.657 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.800 |
| 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 |
09:01:31.27 |
+34:48:08.4 |
HIP 44169 |
21.59 |
| 2026-09-20 12:00 |
09:01:44.71 |
+34:48:45.6 |
HIP 44169 |
24.32 |
| 2026-09-21 00:00 |
09:01:58.06 |
+34:49:23.4 |
HIP 44169 |
27.05 |
| 2026-09-21 12:00 |
09:02:11.32 |
+34:50:02.0 |
HIP 44244 |
29.72 |
| 2026-09-22 00:00 |
09:02:24.48 |
+34:50:41.3 |
HIP 44244 |
31.05 |
| 2026-09-22 12:00 |
09:02:37.55 |
+34:51:21.2 |
HIP 44388 |
30.78 |
| 2026-09-23 00:00 |
09:02:50.53 |
+34:52:01.9 |
HIP 44388 |
30.34 |
| 2026-09-23 12:00 |
09:03:03.42 |
+34:52:43.3 |
HIP 44388 |
30.12 |
| 2026-09-24 00:00 |
09:03:16.21 |
+34:53:25.3 |
HIP 44388 |
30.13 |
| 2026-09-24 12:00 |
09:03:28.90 |
+34:54:08.1 |
HIP 44388 |
30.36 |
| 2026-09-25 00:00 |
09:03:41.50 |
+34:54:51.6 |
HIP 44388 |
30.80 |
| 2026-09-25 12:00 |
09:03:54.00 |
+34:55:35.8 |
HIP 44388 |
31.45 |
| 2026-09-26 00:00 |
09:04:06.41 |
+34:56:20.7 |
HIP 44388 |
32.28 |
| 2026-09-26 12:00 |
09:04:18.72 |
+34:57:06.3 |
HIP 44388 |
33.28 |
| 2026-09-27 00:00 |
09:04:30.93 |
+34:57:52.7 |
HIP 44559 |
33.94 |
| 2026-09-27 12:00 |
09:04:43.04 |
+34:58:39.7 |
HIP 44720 |
32.58 |
| 2026-09-28 00:00 |
09:04:55.05 |
+34:59:27.5 |
HIP 44720 |
30.21 |
| 2026-09-28 12:00 |
09:05:06.95 |
+35:00:16.1 |
HIP 44720 |
27.88 |
| 2026-09-29 00:00 |
09:05:18.76 |
+35:01:05.3 |
HIP 44720 |
25.61 |
| 2026-09-29 12:00 |
09:05:30.47 |
+35:01:55.3 |
HIP 44720 |
23.40 |
| 2026-09-30 00:00 |
09:05:42.07 |
+35:02:46.0 |
HIP 44720 |
21.26 |
| 2026-09-30 12:00 |
09:05:53.57 |
+35:03:37.5 |
HIP 44720 |
19.22 |
| 2026-10-01 00:00 |
09:06:04.97 |
+35:04:29.7 |
HIP 44720 |
17.29 |
| 2026-10-01 12:00 |
09:06:16.26 |
+35:05:22.6 |
HIP 44720 |
15.53 |
| 2026-10-02 00:00 |
09:06:27.44 |
+35:06:16.3 |
HIP 44720 |
13.97 |
| 2026-10-02 12:00 |
09:06:38.52 |
+35:07:10.7 |
HIP 44720 |
12.69 |
| 2026-10-03 00:00 |
09:06:49.49 |
+35:08:05.9 |
HIP 44720 |
11.76 |
| 2026-10-03 12:00 |
09:07:00.36 |
+35:09:01.8 |
HIP 44720 |
11.27 |
| 2026-10-04 00:00 |
09:07:11.11 |
+35:09:58.5 |
HIP 44720 |
11.26 |
| 2026-10-04 12:00 |
09:07:21.75 |
+35:10:56.0 |
HIP 44720 |
11.72 |
| 2026-10-05 00:00 |
09:07:32.29 |
+35:11:54.2 |
HIP 44720 |
12.60 |
| 2026-10-05 12:00 |
09:07:42.71 |
+35:12:53.2 |
HIP 44720 |
13.80 |
| 2026-10-06 00:00 |
09:07:53.02 |
+35:13:52.9 |
HIP 44882 |
12.72 |
| 2026-10-06 12:00 |
09:08:03.22 |
+35:14:53.4 |
HIP 44882 |
10.48 |
| 2026-10-07 00:00 |
09:08:13.30 |
+35:15:54.7 |
HIP 44882 |
8.27 |
| 2026-10-07 12:00 |
09:08:23.27 |
+35:16:56.8 |
HIP 44882 |
6.14 |
| 2026-10-08 00:00 |
09:08:33.13 |
+35:17:59.6 |
HIP 44882 |
4.16 |
| 2026-10-08 12:00 |
09:08:42.86 |
+35:19:03.2 |
HIP 44882 |
2.69 |
| 2026-10-09 00:00 |
09:08:52.48 |
+35:20:07.6 |
HIP 44882 |
2.66 |
| 2026-10-09 12:00 |
09:09:01.98 |
+35:21:12.8 |
HIP 44882 |
4.09 |
| 2026-10-10 00:00 |
09:09:11.37 |
+35:22:18.7 |
HIP 44882 |
6.00 |
| 2026-10-10 12:00 |
09:09:20.63 |
+35:23:25.5 |
HIP 44882 |
8.04 |
| 2026-10-11 00:00 |
09:09:29.77 |
+35:24:33.0 |
HIP 45017 |
7.91 |