메타데이터
| 항목 |
값 |
| Designation |
C/2022 J1 (Maury-Attard) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2022-02-19T01:09:17.403840Z |
| Orbit solution date (soln_date, UTC) |
2022-11-10T22:12:46Z |
| Obs used |
159 |
| NEO |
- |
| M1 |
11.800 |
| K1 |
20.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-05-05T09:15:21.024000Z |
| Discovery magnitude (MPC) |
17.60 G |
| Discovery observatory (MPC) |
W94 · MAPS, San Pedro de Atacama |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-05-25.0000000 |
| e |
0.96638573 |
| q (au) |
1.604208 |
| a (au) |
47.724012 |
| i (deg) |
105.929932 |
| Ω (om, deg) |
280.722913 |
| ω (w, deg) |
305.660142 |
| M (ma, deg) |
0.283859 |
밝기
산란 + 전체 선형
$$
M_a = (12.315 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.315 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| 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) |
| 2026-05-12 00:00 |
16:14:08.75 |
+61:24:04.3 |
HIP 79345 |
22.06 |
| 2026-05-12 12:00 |
16:13:48.59 |
+61:24:55.6 |
HIP 79345 |
20.61 |
| 2026-05-13 00:00 |
16:13:28.39 |
+61:25:45.5 |
HIP 79345 |
19.37 |
| 2026-05-13 12:00 |
16:13:08.14 |
+61:26:34.1 |
HIP 79345 |
18.38 |
| 2026-05-14 00:00 |
16:12:47.85 |
+61:27:21.3 |
HIP 79345 |
17.69 |
| 2026-05-14 12:00 |
16:12:27.53 |
+61:28:07.2 |
HIP 79345 |
17.34 |
| 2026-05-15 00:00 |
16:12:07.16 |
+61:28:51.6 |
HIP 79345 |
17.33 |
| 2026-05-15 12:00 |
16:11:46.77 |
+61:29:34.7 |
HIP 79345 |
17.67 |
| 2026-05-16 00:00 |
16:11:26.34 |
+61:30:16.4 |
HIP 79345 |
18.34 |
| 2026-05-16 12:00 |
16:11:05.88 |
+61:30:56.8 |
HIP 79345 |
19.30 |
| 2026-05-17 00:00 |
16:10:45.39 |
+61:31:35.8 |
HIP 79345 |
20.52 |
| 2026-05-17 12:00 |
16:10:24.88 |
+61:32:13.3 |
HIP 79345 |
21.94 |
| 2026-05-18 00:00 |
16:10:04.35 |
+61:32:49.6 |
HIP 79345 |
23.53 |
| 2026-05-18 12:00 |
16:09:43.79 |
+61:33:24.4 |
HIP 79345 |
25.25 |
| 2026-05-19 00:00 |
16:09:23.22 |
+61:33:57.8 |
HIP 78882 |
23.28 |
| 2026-05-19 12:00 |
16:09:02.63 |
+61:34:29.9 |
HIP 78882 |
20.78 |
| 2026-05-20 00:00 |
16:08:42.03 |
+61:35:00.6 |
HIP 78882 |
18.28 |
| 2026-05-20 12:00 |
16:08:21.41 |
+61:35:29.9 |
HIP 78882 |
15.78 |
| 2026-05-21 00:00 |
16:08:00.79 |
+61:35:57.8 |
HIP 78882 |
13.29 |
| 2026-05-21 12:00 |
16:07:40.16 |
+61:36:24.4 |
HIP 78882 |
10.80 |
| 2026-05-22 00:00 |
16:07:19.52 |
+61:36:49.5 |
HIP 78882 |
8.32 |
| 2026-05-22 12:00 |
16:06:58.88 |
+61:37:13.3 |
HIP 78882 |
5.85 |
| 2026-05-23 00:00 |
16:06:38.24 |
+61:37:35.8 |
HIP 78882 |
3.39 |
| 2026-05-23 12:00 |
16:06:17.60 |
+61:37:56.8 |
HIP 78882 |
1.02 |
| 2026-05-24 00:00 |
16:05:56.97 |
+61:38:16.5 |
HIP 78882 |
1.69 |
| 2026-05-24 12:00 |
16:05:36.34 |
+61:38:34.8 |
HIP 78882 |
4.10 |
| 2026-05-25 00:00 |
16:05:15.72 |
+61:38:51.7 |
HIP 78882 |
6.55 |
| 2026-05-25 12:00 |
16:04:55.11 |
+61:39:07.3 |
HIP 78882 |
9.01 |
| 2026-05-26 00:00 |
16:04:34.51 |
+61:39:21.5 |
HIP 78882 |
11.46 |
| 2026-05-26 12:00 |
16:04:13.93 |
+61:39:34.4 |
HIP 78882 |
13.90 |
| 2026-05-27 00:00 |
16:03:53.36 |
+61:39:45.9 |
HIP 78882 |
16.35 |
| 2026-05-27 12:00 |
16:03:32.81 |
+61:39:56.0 |
HIP 78882 |
18.79 |
| 2026-05-28 00:00 |
16:03:12.28 |
+61:40:04.8 |
HIP 78423 |
18.50 |
| 2026-05-28 12:00 |
16:02:51.77 |
+61:40:12.3 |
HIP 78423 |
16.07 |
| 2026-05-29 00:00 |
16:02:31.29 |
+61:40:18.4 |
HIP 78423 |
13.64 |
| 2026-05-29 12:00 |
16:02:10.83 |
+61:40:23.1 |
HIP 78423 |
11.22 |
| 2026-05-30 00:00 |
16:01:50.40 |
+61:40:26.5 |
HIP 78423 |
8.81 |
| 2026-05-30 12:00 |
16:01:30.01 |
+61:40:28.6 |
HIP 78423 |
6.41 |
| 2026-05-31 00:00 |
16:01:09.64 |
+61:40:29.3 |
HIP 78423 |
4.02 |
| 2026-05-31 12:00 |
16:00:49.31 |
+61:40:28.8 |
HIP 78423 |
1.73 |
| 2026-06-01 00:00 |
16:00:29.02 |
+61:40:26.8 |
HIP 78423 |
1.16 |
| 2026-06-01 12:00 |
16:00:08.76 |
+61:40:23.6 |
HIP 78423 |
3.36 |
| 2026-06-02 00:00 |
15:59:48.54 |
+61:40:19.0 |
HIP 78423 |
5.72 |