메타데이터
| 항목 |
값 |
| Designation |
C/2022 N1 (Attard-Maury) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2022-09-10T01:06:56.952000Z |
| Orbit solution date (soln_date, UTC) |
2025-07-31T12:12:22Z |
| Obs used |
222 |
| NEO |
- |
| M1 |
17.600 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-07-02T07:43:58.080000Z |
| Discovery magnitude (MPC) |
17.20 G |
| Discovery observatory (MPC) |
W94 · MAPS, San Pedro de Atacama |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-08-01.0000000 |
| e |
0.96002870 |
| q (au) |
1.481828 |
| a (au) |
37.072286 |
| i (deg) |
164.740998 |
| Ω (om, deg) |
301.858165 |
| ω (w, deg) |
41.069648 |
| M (ma, deg) |
359.825138 |
밝기
산란 + 전체 선형
$$
M_a = (16.829 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.829 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.908 |
| 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 |
07:47:52.35 |
+20:31:42.5 |
HIP 38082 |
10.92 |
| 2026-05-12 12:00 |
07:47:55.50 |
+20:31:29.9 |
HIP 38082 |
10.38 |
| 2026-05-13 00:00 |
07:47:58.72 |
+20:31:17.1 |
HIP 38082 |
9.87 |
| 2026-05-13 12:00 |
07:48:02.01 |
+20:31:04.2 |
HIP 38082 |
9.38 |
| 2026-05-14 00:00 |
07:48:05.37 |
+20:30:51.0 |
HIP 38082 |
8.94 |
| 2026-05-14 12:00 |
07:48:08.81 |
+20:30:37.7 |
HIP 38082 |
8.54 |
| 2026-05-15 00:00 |
07:48:12.31 |
+20:30:24.2 |
HIP 38082 |
8.20 |
| 2026-05-15 12:00 |
07:48:15.89 |
+20:30:10.5 |
HIP 38082 |
7.94 |
| 2026-05-16 00:00 |
07:48:19.53 |
+20:29:56.6 |
HIP 38082 |
7.77 |
| 2026-05-16 12:00 |
07:48:23.25 |
+20:29:42.5 |
HIP 38082 |
7.70 |
| 2026-05-17 00:00 |
07:48:27.03 |
+20:29:28.3 |
HIP 38082 |
7.73 |
| 2026-05-17 12:00 |
07:48:30.89 |
+20:29:13.9 |
HIP 38082 |
7.87 |
| 2026-05-18 00:00 |
07:48:34.81 |
+20:28:59.3 |
HIP 38082 |
8.13 |
| 2026-05-18 12:00 |
07:48:38.79 |
+20:28:44.5 |
HIP 38082 |
8.50 |
| 2026-05-19 00:00 |
07:48:42.84 |
+20:28:29.5 |
HIP 38082 |
8.96 |
| 2026-05-19 12:00 |
07:48:46.96 |
+20:28:14.3 |
HIP 38082 |
9.51 |
| 2026-05-20 00:00 |
07:48:51.15 |
+20:27:59.0 |
HIP 38082 |
10.14 |
| 2026-05-20 12:00 |
07:48:55.40 |
+20:27:43.5 |
HIP 38082 |
10.85 |
| 2026-05-21 00:00 |
07:48:59.71 |
+20:27:27.9 |
HIP 38082 |
11.61 |
| 2026-05-21 12:00 |
07:49:04.08 |
+20:27:12.0 |
HIP 38082 |
12.42 |
| 2026-05-22 00:00 |
07:49:08.52 |
+20:26:56.0 |
HIP 38082 |
13.29 |
| 2026-05-22 12:00 |
07:49:13.02 |
+20:26:39.8 |
HIP 38082 |
14.19 |
| 2026-05-23 00:00 |
07:49:17.58 |
+20:26:23.4 |
HIP 38082 |
15.13 |
| 2026-05-23 12:00 |
07:49:22.21 |
+20:26:06.9 |
HIP 38082 |
16.11 |
| 2026-05-24 00:00 |
07:49:26.89 |
+20:25:50.2 |
HIP 38082 |
17.12 |
| 2026-05-24 12:00 |
07:49:31.63 |
+20:25:33.4 |
HIP 38082 |
18.15 |
| 2026-05-25 00:00 |
07:49:36.43 |
+20:25:16.4 |
HIP 38308 |
18.62 |
| 2026-05-25 12:00 |
07:49:41.29 |
+20:24:59.2 |
HIP 38308 |
17.49 |
| 2026-05-26 00:00 |
07:49:46.21 |
+20:24:41.8 |
HIP 38308 |
16.36 |
| 2026-05-26 12:00 |
07:49:51.19 |
+20:24:24.3 |
HIP 38308 |
15.22 |
| 2026-05-27 00:00 |
07:49:56.22 |
+20:24:06.7 |
HIP 38308 |
14.07 |
| 2026-05-27 12:00 |
07:50:01.31 |
+20:23:48.8 |
HIP 38308 |
12.93 |
| 2026-05-28 00:00 |
07:50:06.45 |
+20:23:30.9 |
HIP 38308 |
11.79 |
| 2026-05-28 12:00 |
07:50:11.65 |
+20:23:12.7 |
HIP 38308 |
10.66 |
| 2026-05-29 00:00 |
07:50:16.90 |
+20:22:54.4 |
HIP 38308 |
9.55 |
| 2026-05-29 12:00 |
07:50:22.21 |
+20:22:36.0 |
HIP 38308 |
8.48 |
| 2026-05-30 00:00 |
07:50:27.57 |
+20:22:17.4 |
HIP 38308 |
7.46 |
| 2026-05-30 12:00 |
07:50:32.99 |
+20:21:58.6 |
HIP 38308 |
6.53 |
| 2026-05-31 00:00 |
07:50:38.46 |
+20:21:39.7 |
HIP 38308 |
5.74 |
| 2026-05-31 12:00 |
07:50:43.98 |
+20:21:20.6 |
HIP 38308 |
5.17 |
| 2026-06-01 00:00 |
07:50:49.55 |
+20:21:01.4 |
HIP 38308 |
4.90 |
| 2026-06-01 12:00 |
07:50:55.17 |
+20:20:42.1 |
HIP 38308 |
4.99 |
| 2026-06-02 00:00 |
07:51:00.84 |
+20:20:22.6 |
HIP 38308 |
5.44 |