메타데이터
| 항목 |
값 |
| Designation |
C/2024 G1 (Wierzchos) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2024-10-21T02:22:13.702080Z |
| Orbit solution date (soln_date, UTC) |
2025-05-08T09:42:17Z |
| Obs used |
112 |
| NEO |
- |
| M1 |
7.200 |
| K1 |
16.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2024-07-09.0000000 |
| e |
0.96744521 |
| q (au) |
3.930143 |
| a (au) |
120.723934 |
| i (deg) |
95.400994 |
| Ω (om, deg) |
30.599798 |
| ω (w, deg) |
128.228357 |
| M (ma, deg) |
359.922650 |
밝기
산란 + 전체 선형
$$
M_a = (7.404 + 5.601\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.404 |
| n |
5.601 |
| gf |
0.996 |
| 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) |
| 2026-03-26 00:00 |
13:33:06.29 |
-32:32:47.2 |
HIP 65924 |
28.52 |
| 2026-03-26 12:00 |
13:32:34.88 |
-32:34:06.3 |
HIP 65924 |
21.77 |
| 2026-03-27 00:00 |
13:32:03.37 |
-32:35:23.6 |
HIP 65924 |
15.01 |
| 2026-03-27 12:00 |
13:31:31.76 |
-32:36:38.9 |
HIP 65924 |
8.24 |
| 2026-03-28 00:00 |
13:31:00.05 |
-32:37:52.3 |
HIP 65924 |
1.49 |
| 2026-03-28 12:00 |
13:30:28.26 |
-32:39:03.7 |
HIP 65924 |
5.37 |
| 2026-03-29 00:00 |
13:29:56.38 |
-32:40:13.2 |
HIP 65851 |
11.13 |
| 2026-03-29 12:00 |
13:29:24.41 |
-32:41:20.8 |
HIP 65851 |
11.97 |
| 2026-03-30 00:00 |
13:28:52.37 |
-32:42:26.4 |
HIP 65851 |
16.02 |
| 2026-03-30 12:00 |
13:28:20.25 |
-32:43:30.1 |
HIP 65851 |
21.55 |
| 2026-03-31 00:00 |
13:27:48.06 |
-32:44:31.9 |
HIP 65539 |
24.06 |
| 2026-03-31 12:00 |
13:27:15.80 |
-32:45:31.7 |
HIP 65539 |
19.07 |
| 2026-04-01 00:00 |
13:26:43.48 |
-32:46:29.5 |
HIP 65539 |
15.55 |
| 2026-04-01 12:00 |
13:26:11.09 |
-32:47:25.4 |
HIP 65539 |
14.60 |
| 2026-04-02 00:00 |
13:25:38.65 |
-32:48:19.4 |
HIP 65441 |
14.38 |
| 2026-04-02 12:00 |
13:25:06.16 |
-32:49:11.4 |
HIP 65441 |
10.33 |
| 2026-04-03 00:00 |
13:24:33.61 |
-32:50:01.5 |
HIP 65441 |
10.04 |
| 2026-04-03 12:00 |
13:24:01.02 |
-32:50:49.7 |
HIP 65441 |
13.76 |
| 2026-04-04 00:00 |
13:23:28.39 |
-32:51:35.9 |
HIP 65441 |
19.30 |
| 2026-04-04 12:00 |
13:22:55.73 |
-32:52:20.3 |
HIP 65311 |
19.25 |
| 2026-04-05 00:00 |
13:22:23.02 |
-32:53:02.6 |
HIP 65311 |
20.69 |
| 2026-04-05 12:00 |
13:21:50.29 |
-32:53:43.1 |
HIP 65311 |
24.12 |
| 2026-04-06 00:00 |
13:21:17.53 |
-32:54:21.6 |
HIP 65311 |
28.85 |
| 2026-04-06 12:00 |
13:20:44.75 |
-32:54:58.3 |
HIP 64937 |
28.59 |
| 2026-04-07 00:00 |
13:20:11.96 |
-32:55:33.0 |
HIP 64937 |
22.07 |
| 2026-04-07 12:00 |
13:19:39.14 |
-32:56:05.8 |
HIP 64937 |
15.89 |
| 2026-04-08 00:00 |
13:19:06.32 |
-32:56:36.8 |
HIP 64937 |
10.66 |
| 2026-04-08 12:00 |
13:18:33.49 |
-32:57:05.8 |
HIP 64937 |
8.40 |
| 2026-04-09 00:00 |
13:18:00.66 |
-32:57:33.0 |
HIP 64937 |
11.10 |
| 2026-04-09 12:00 |
13:17:27.82 |
-32:57:58.3 |
HIP 64937 |
16.47 |
| 2026-04-10 00:00 |
13:16:55.00 |
-32:58:21.7 |
HIP 64937 |
22.69 |
| 2026-04-10 12:00 |
13:16:22.18 |
-32:58:43.3 |
HIP 64824 |
25.70 |
| 2026-04-11 00:00 |
13:15:49.38 |
-32:59:03.0 |
HIP 64824 |
29.80 |
| 2026-04-11 12:00 |
13:15:16.59 |
-32:59:20.9 |
HIP 64824 |
34.78 |
| 2026-04-12 00:00 |
13:14:43.83 |
-32:59:36.9 |
HIP 64824 |
40.30 |
| 2026-04-12 12:00 |
13:14:11.09 |
-32:59:51.2 |
HIP 64534 |
41.94 |
| 2026-04-13 00:00 |
13:13:38.38 |
-33:00:03.6 |
HIP 64534 |
41.61 |
| 2026-04-13 12:00 |
13:13:05.70 |
-33:00:14.2 |
HIP 64264 |
36.86 |
| 2026-04-14 00:00 |
13:12:33.06 |
-33:00:23.1 |
HIP 64264 |
30.52 |
| 2026-04-14 12:00 |
13:12:00.46 |
-33:00:30.2 |
HIP 64264 |
24.44 |
| 2026-04-15 00:00 |
13:11:27.91 |
-33:00:35.6 |
HIP 64264 |
18.89 |
| 2026-04-15 12:00 |
13:10:55.40 |
-33:00:39.2 |
HIP 64264 |
14.45 |
| 2026-04-16 00:00 |
13:10:22.95 |
-33:00:41.0 |
HIP 64264 |
12.38 |