메타데이터
| 항목 |
값 |
| Designation |
C/2025 Q1 (ATLAS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2024-07-12T01:27:00.011520Z |
| Orbit solution date (soln_date, UTC) |
2025-12-12T11:12:31Z |
| Obs used |
24 |
| NEO |
- |
| M1 |
6.600 |
| K1 |
8.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2025-08-27T05:43:50.505600Z |
| Discovery magnitude (MPC) |
19.88 o |
| Discovery observatory (MPC) |
W68 · ATLAS Chile, Rio Hurtado |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2025-01-29.0000000 |
| e |
0.99127748 |
| q (au) |
10.099968 |
| a (au) |
1157.918555 |
| i (deg) |
66.152955 |
| Ω (om, deg) |
326.964441 |
| ω (w, deg) |
280.236072 |
| M (ma, deg) |
0.005026 |
밝기
산란 + 전체 선형
$$
M_a = (-1.324 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
-1.324 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.502 |
| 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 |
22:14:29.18 |
-62:41:45.2 |
HIP 109749 |
25.30 |
| 2026-05-12 12:00 |
22:14:33.08 |
-62:42:36.9 |
HIP 110088 |
24.67 |
| 2026-05-13 00:00 |
22:14:36.80 |
-62:43:29.2 |
HIP 110088 |
24.05 |
| 2026-05-13 12:00 |
22:14:40.34 |
-62:44:22.0 |
HIP 110088 |
23.47 |
| 2026-05-14 00:00 |
22:14:43.68 |
-62:45:15.3 |
HIP 110088 |
22.94 |
| 2026-05-14 12:00 |
22:14:46.85 |
-62:46:09.1 |
HIP 110088 |
22.46 |
| 2026-05-15 00:00 |
22:14:49.82 |
-62:47:03.5 |
HIP 110088 |
22.03 |
| 2026-05-15 12:00 |
22:14:52.61 |
-62:47:58.4 |
HIP 110088 |
21.66 |
| 2026-05-16 00:00 |
22:14:55.21 |
-62:48:53.8 |
HIP 110088 |
21.35 |
| 2026-05-16 12:00 |
22:14:57.62 |
-62:49:49.7 |
HIP 110088 |
21.10 |
| 2026-05-17 00:00 |
22:14:59.84 |
-62:50:46.1 |
HIP 110088 |
20.91 |
| 2026-05-17 12:00 |
22:15:01.87 |
-62:51:43.0 |
HIP 110088 |
20.79 |
| 2026-05-18 00:00 |
22:15:03.71 |
-62:52:40.3 |
HIP 110088 |
20.74 |
| 2026-05-18 12:00 |
22:15:05.36 |
-62:53:38.1 |
HIP 110088 |
20.76 |
| 2026-05-19 00:00 |
22:15:06.82 |
-62:54:36.3 |
HIP 110088 |
20.85 |
| 2026-05-19 12:00 |
22:15:08.08 |
-62:55:35.0 |
HIP 110088 |
21.01 |
| 2026-05-20 00:00 |
22:15:09.15 |
-62:56:34.1 |
HIP 110102 |
21.13 |
| 2026-05-20 12:00 |
22:15:10.02 |
-62:57:33.7 |
HIP 110102 |
20.87 |
| 2026-05-21 00:00 |
22:15:10.70 |
-62:58:33.6 |
HIP 110102 |
20.67 |
| 2026-05-21 12:00 |
22:15:11.19 |
-62:59:33.9 |
HIP 110102 |
20.55 |
| 2026-05-22 00:00 |
22:15:11.48 |
-63:00:34.7 |
HIP 110102 |
20.50 |
| 2026-05-22 12:00 |
22:15:11.57 |
-63:01:35.8 |
HIP 110102 |
20.51 |
| 2026-05-23 00:00 |
22:15:11.47 |
-63:02:37.3 |
HIP 109976 |
19.71 |
| 2026-05-23 12:00 |
22:15:11.17 |
-63:03:39.1 |
HIP 109976 |
18.80 |
| 2026-05-24 00:00 |
22:15:10.67 |
-63:04:41.3 |
HIP 109976 |
17.92 |
| 2026-05-24 12:00 |
22:15:09.98 |
-63:05:43.9 |
HIP 109976 |
17.06 |
| 2026-05-25 00:00 |
22:15:09.08 |
-63:06:46.7 |
HIP 109976 |
16.23 |
| 2026-05-25 12:00 |
22:15:07.99 |
-63:07:49.9 |
HIP 109976 |
15.43 |
| 2026-05-26 00:00 |
22:15:06.70 |
-63:08:53.4 |
HIP 109976 |
14.68 |
| 2026-05-26 12:00 |
22:15:05.21 |
-63:09:57.3 |
HIP 109976 |
13.98 |
| 2026-05-27 00:00 |
22:15:03.52 |
-63:11:01.4 |
HIP 109976 |
13.35 |
| 2026-05-27 12:00 |
22:15:01.64 |
-63:12:05.8 |
HIP 109976 |
12.79 |
| 2026-05-28 00:00 |
22:14:59.55 |
-63:13:10.4 |
HIP 109976 |
12.31 |
| 2026-05-28 12:00 |
22:14:57.25 |
-63:14:15.3 |
HIP 109976 |
11.94 |
| 2026-05-29 00:00 |
22:14:54.76 |
-63:15:20.5 |
HIP 109976 |
11.68 |
| 2026-05-29 12:00 |
22:14:52.07 |
-63:16:26.0 |
HIP 109976 |
11.54 |
| 2026-05-30 00:00 |
22:14:49.17 |
-63:17:31.6 |
HIP 109976 |
11.54 |
| 2026-05-30 12:00 |
22:14:46.08 |
-63:18:37.5 |
HIP 109976 |
11.66 |
| 2026-05-31 00:00 |
22:14:42.77 |
-63:19:43.6 |
HIP 109976 |
11.92 |
| 2026-05-31 12:00 |
22:14:39.27 |
-63:20:49.9 |
HIP 109976 |
12.31 |
| 2026-06-01 00:00 |
22:14:35.56 |
-63:21:56.4 |
HIP 109976 |
12.82 |
| 2026-06-01 12:00 |
22:14:31.65 |
-63:23:03.1 |
HIP 109976 |
13.43 |
| 2026-06-02 00:00 |
22:14:27.53 |
-63:24:09.9 |
HIP 109976 |
14.15 |