메타데이터
| 항목 |
값 |
| Designation |
C/2010 H1 (Garradd) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-06-18T21:49:15.484800Z |
| Orbit solution date (soln_date, UTC) |
2022-07-06T03:12:21Z |
| Obs used |
46 |
| NEO |
- |
| M1 |
9.500 |
| K1 |
17.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2010-05-03.0000000 |
| e |
0.99965781 |
| q (au) |
2.745494 |
| a (au) |
8023.335869 |
| i (deg) |
36.531182 |
| Ω (om, deg) |
347.383773 |
| ω (w, deg) |
233.823547 |
| M (ma, deg) |
359.999936 |
밝기
산란 + 전체 선형
$$
M_a = (15.811 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
15.811 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.996 |
| 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 |
00:01:35.53 |
+13:05:31.9 |
HIP 23 |
23.06 |
| 2026-06-01 12:00 |
00:01:36.79 |
+13:05:53.0 |
HIP 23 |
23.11 |
| 2026-06-02 00:00 |
00:01:38.03 |
+13:06:14.1 |
HIP 23 |
23.17 |
| 2026-06-02 12:00 |
00:01:39.24 |
+13:06:35.0 |
HIP 23 |
23.24 |
| 2026-06-03 00:00 |
00:01:40.43 |
+13:06:55.8 |
HIP 23 |
23.30 |
| 2026-06-03 12:00 |
00:01:41.59 |
+13:07:16.4 |
HIP 23 |
23.38 |
| 2026-06-04 00:00 |
00:01:42.73 |
+13:07:37.0 |
HIP 23 |
23.46 |
| 2026-06-04 12:00 |
00:01:43.83 |
+13:07:57.4 |
HIP 23 |
23.54 |
| 2026-06-05 00:00 |
00:01:44.92 |
+13:08:17.7 |
HIP 23 |
23.62 |
| 2026-06-05 12:00 |
00:01:45.97 |
+13:08:37.8 |
HIP 23 |
23.70 |
| 2026-06-06 00:00 |
00:01:47.01 |
+13:08:57.9 |
HIP 23 |
23.79 |
| 2026-06-06 12:00 |
00:01:48.01 |
+13:09:17.8 |
HIP 23 |
23.88 |
| 2026-06-07 00:00 |
00:01:48.99 |
+13:09:37.5 |
HIP 23 |
23.97 |
| 2026-06-07 12:00 |
00:01:49.94 |
+13:09:57.1 |
HIP 23 |
24.07 |
| 2026-06-08 00:00 |
00:01:50.86 |
+13:10:16.6 |
HIP 23 |
24.16 |
| 2026-06-08 12:00 |
00:01:51.76 |
+13:10:36.0 |
HIP 23 |
24.25 |
| 2026-06-09 00:00 |
00:01:52.63 |
+13:10:55.2 |
HIP 23 |
24.35 |
| 2026-06-09 12:00 |
00:01:53.48 |
+13:11:14.3 |
HIP 23 |
24.44 |
| 2026-06-10 00:00 |
00:01:54.29 |
+13:11:33.2 |
HIP 23 |
24.54 |
| 2026-06-10 12:00 |
00:01:55.08 |
+13:11:52.0 |
HIP 23 |
24.63 |
| 2026-06-11 00:00 |
00:01:55.85 |
+13:12:10.7 |
HIP 23 |
24.73 |
| 2026-06-11 12:00 |
00:01:56.58 |
+13:12:29.2 |
HIP 23 |
24.82 |
| 2026-06-12 00:00 |
00:01:57.29 |
+13:12:47.5 |
HIP 23 |
24.91 |
| 2026-06-12 12:00 |
00:01:57.97 |
+13:13:05.8 |
HIP 23 |
25.00 |
| 2026-06-13 00:00 |
00:01:58.63 |
+13:13:23.8 |
HIP 23 |
25.09 |
| 2026-06-13 12:00 |
00:01:59.26 |
+13:13:41.8 |
HIP 23 |
25.18 |
| 2026-06-14 00:00 |
00:01:59.85 |
+13:13:59.5 |
HIP 23 |
25.27 |
| 2026-06-14 12:00 |
00:02:00.43 |
+13:14:17.2 |
HIP 23 |
25.35 |
| 2026-06-15 00:00 |
00:02:00.97 |
+13:14:34.6 |
HIP 23 |
25.43 |
| 2026-06-15 12:00 |
00:02:01.49 |
+13:14:51.9 |
HIP 23 |
25.51 |
| 2026-06-16 00:00 |
00:02:01.98 |
+13:15:09.1 |
HIP 298 |
25.37 |
| 2026-06-16 12:00 |
00:02:02.44 |
+13:15:26.1 |
HIP 298 |
25.18 |
| 2026-06-17 00:00 |
00:02:02.87 |
+13:15:43.0 |
HIP 298 |
25.01 |
| 2026-06-17 12:00 |
00:02:03.27 |
+13:15:59.6 |
HIP 298 |
24.85 |
| 2026-06-18 00:00 |
00:02:03.65 |
+13:16:16.2 |
HIP 298 |
24.69 |
| 2026-06-18 12:00 |
00:02:04.00 |
+13:16:32.5 |
HIP 298 |
24.55 |
| 2026-06-19 00:00 |
00:02:04.32 |
+13:16:48.8 |
HIP 298 |
24.41 |
| 2026-06-19 12:00 |
00:02:04.62 |
+13:17:04.8 |
HIP 298 |
24.29 |
| 2026-06-20 00:00 |
00:02:04.88 |
+13:17:20.7 |
HIP 298 |
24.17 |
| 2026-06-20 12:00 |
00:02:05.12 |
+13:17:36.4 |
HIP 298 |
24.07 |
| 2026-06-21 00:00 |
00:02:05.33 |
+13:17:52.0 |
HIP 298 |
23.97 |
| 2026-06-21 12:00 |
00:02:05.51 |
+13:18:07.4 |
HIP 298 |
23.89 |
| 2026-06-22 00:00 |
00:02:05.67 |
+13:18:22.6 |
HIP 298 |
23.81 |