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 |
-0.500 |
| 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) |
| 2026-06-01 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 |
| 2026-06-02 12:00 |
15:59:28.37 |
+61:40:13.1 |
HIP 78423 |
8.09 |
| 2026-06-03 00:00 |
15:59:08.24 |
+61:40:06.0 |
HIP 78423 |
10.47 |
| 2026-06-03 12:00 |
15:58:48.15 |
+61:39:57.4 |
HIP 78423 |
12.85 |
| 2026-06-04 00:00 |
15:58:28.11 |
+61:39:47.6 |
HIP 78423 |
15.23 |
| 2026-06-04 12:00 |
15:58:08.13 |
+61:39:36.5 |
HIP 78423 |
17.60 |
| 2026-06-05 00:00 |
15:57:48.19 |
+61:39:24.1 |
HIP 78423 |
19.97 |
| 2026-06-05 12:00 |
15:57:28.31 |
+61:39:10.4 |
HIP 77915 |
20.98 |
| 2026-06-06 00:00 |
15:57:08.48 |
+61:38:55.4 |
HIP 77915 |
18.70 |
| 2026-06-06 12:00 |
15:56:48.71 |
+61:38:39.1 |
HIP 77915 |
16.44 |
| 2026-06-07 00:00 |
15:56:29.00 |
+61:38:21.6 |
HIP 77915 |
14.21 |
| 2026-06-07 12:00 |
15:56:09.35 |
+61:38:02.7 |
HIP 77915 |
12.03 |
| 2026-06-08 00:00 |
15:55:49.76 |
+61:37:42.6 |
HIP 77915 |
9.92 |
| 2026-06-08 12:00 |
15:55:30.24 |
+61:37:21.2 |
HIP 77915 |
7.95 |
| 2026-06-09 00:00 |
15:55:10.78 |
+61:36:58.6 |
HIP 77915 |
6.22 |
| 2026-06-09 12:00 |
15:54:51.39 |
+61:36:34.7 |
HIP 77915 |
5.00 |
| 2026-06-10 00:00 |
15:54:32.07 |
+61:36:09.5 |
HIP 77915 |
4.70 |
| 2026-06-10 12:00 |
15:54:12.83 |
+61:35:43.1 |
HIP 77915 |
5.46 |
| 2026-06-11 00:00 |
15:53:53.66 |
+61:35:15.5 |
HIP 77915 |
6.95 |
| 2026-06-11 12:00 |
15:53:34.56 |
+61:34:46.6 |
HIP 77915 |
8.79 |
| 2026-06-12 00:00 |
15:53:15.54 |
+61:34:16.5 |
HIP 77915 |
10.81 |
| 2026-06-12 12:00 |
15:52:56.60 |
+61:33:45.1 |
HIP 77915 |
12.91 |
| 2026-06-13 00:00 |
15:52:37.74 |
+61:33:12.6 |
HIP 77915 |
15.07 |
| 2026-06-13 12:00 |
15:52:18.97 |
+61:32:38.8 |
HIP 77915 |
17.26 |
| 2026-06-14 00:00 |
15:52:00.27 |
+61:32:03.8 |
HIP 77535 |
19.28 |
| 2026-06-14 12:00 |
15:51:41.67 |
+61:31:27.6 |
HIP 77535 |
17.18 |
| 2026-06-15 00:00 |
15:51:23.15 |
+61:30:50.2 |
HIP 77535 |
15.12 |
| 2026-06-15 12:00 |
15:51:04.73 |
+61:30:11.7 |
HIP 77535 |
13.14 |
| 2026-06-16 00:00 |
15:50:46.39 |
+61:29:31.9 |
HIP 77535 |
11.27 |
| 2026-06-16 12:00 |
15:50:28.15 |
+61:28:51.0 |
HIP 77535 |
9.56 |
| 2026-06-17 00:00 |
15:50:10.01 |
+61:28:08.9 |
HIP 77535 |
8.13 |
| 2026-06-17 12:00 |
15:49:51.96 |
+61:27:25.7 |
HIP 77535 |
7.13 |
| 2026-06-18 00:00 |
15:49:34.01 |
+61:26:41.3 |
HIP 77445 |
6.39 |
| 2026-06-18 12:00 |
15:49:16.15 |
+61:25:55.8 |
HIP 77445 |
4.29 |
| 2026-06-19 00:00 |
15:48:58.40 |
+61:25:09.2 |
HIP 77445 |
2.53 |
| 2026-06-19 12:00 |
15:48:40.76 |
+61:24:21.4 |
HIP 77445 |
2.15 |
| 2026-06-20 00:00 |
15:48:23.21 |
+61:23:32.5 |
HIP 77445 |
3.62 |
| 2026-06-20 12:00 |
15:48:05.78 |
+61:22:42.5 |
HIP 77445 |
5.64 |
| 2026-06-21 00:00 |
15:47:48.44 |
+61:21:51.4 |
HIP 77445 |
7.78 |
| 2026-06-21 12:00 |
15:47:31.22 |
+61:20:59.3 |
HIP 77445 |
9.97 |
| 2026-06-22 00:00 |
15:47:14.11 |
+61:20:06.0 |
HIP 77445 |
12.18 |