메타데이터
| 항목 |
값 |
| Designation |
296P/Garradd |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-03-01T06:43:40.719360Z |
| Orbit solution date (soln_date, UTC) |
2021-07-01T22:13:08Z |
| Obs used |
333 |
| NEO |
- |
| M1 |
12.800 |
| K1 |
15.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2014-07-21.0000000 |
| e |
0.47734904 |
| q (au) |
1.830682 |
| a (au) |
3.502686 |
| i (deg) |
25.203980 |
| Ω (om, deg) |
263.676488 |
| ω (w, deg) |
350.027681 |
| M (ma, deg) |
21.307492 |
밝기
산란 + 전체 선형
$$
M_a = (12.031 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.031 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
11:25:33.48 |
-15:38:43.8 |
HIP 55805 |
8.40 |
| 2026-09-20 12:00 |
11:26:31.88 |
-15:44:25.1 |
HIP 55805 |
6.82 |
| 2026-09-21 00:00 |
11:27:30.38 |
-15:50:07.1 |
HIP 55937 |
5.06 |
| 2026-09-21 12:00 |
11:28:28.99 |
-15:55:49.9 |
HIP 55937 |
10.17 |
| 2026-09-22 00:00 |
11:29:27.72 |
-16:01:33.4 |
HIP 55937 |
25.40 |
| 2026-09-22 12:00 |
11:30:26.55 |
-16:07:17.6 |
HIP 56019 |
36.31 |
| 2026-09-23 00:00 |
11:31:25.50 |
-16:13:02.6 |
HIP 56364 |
26.51 |
| 2026-09-23 12:00 |
11:32:24.56 |
-16:18:48.2 |
HIP 56364 |
12.22 |
| 2026-09-24 00:00 |
11:33:23.73 |
-16:24:34.5 |
HIP 56364 |
8.05 |
| 2026-09-24 12:00 |
11:34:23.01 |
-16:30:21.4 |
HIP 56364 |
21.23 |
| 2026-09-25 00:00 |
11:35:22.41 |
-16:36:09.1 |
HIP 56614 |
21.75 |
| 2026-09-25 12:00 |
11:36:21.92 |
-16:41:57.3 |
HIP 56614 |
9.19 |
| 2026-09-26 00:00 |
11:37:21.55 |
-16:47:46.3 |
HIP 56703 |
8.46 |
| 2026-09-26 12:00 |
11:38:21.29 |
-16:53:35.8 |
HIP 56791 |
8.05 |
| 2026-09-27 00:00 |
11:39:21.15 |
-16:59:26.0 |
HIP 56791 |
17.23 |
| 2026-09-27 12:00 |
11:40:21.13 |
-17:05:16.8 |
HIP 57078 |
24.63 |
| 2026-09-28 00:00 |
11:41:21.22 |
-17:11:08.2 |
HIP 57078 |
14.16 |
| 2026-09-28 12:00 |
11:42:21.43 |
-17:17:00.2 |
HIP 57078 |
16.63 |
| 2026-09-29 00:00 |
11:43:21.76 |
-17:22:52.7 |
HIP 57236 |
18.67 |
| 2026-09-29 12:00 |
11:44:22.21 |
-17:28:45.9 |
HIP 57236 |
21.00 |
| 2026-09-30 00:00 |
11:45:22.78 |
-17:34:39.6 |
HIP 57236 |
31.95 |
| 2026-09-30 12:00 |
11:46:23.47 |
-17:40:33.8 |
HIP 57522 |
44.55 |
| 2026-10-01 00:00 |
11:47:24.28 |
-17:46:28.6 |
HIP 57665 |
33.28 |
| 2026-10-01 12:00 |
11:48:25.21 |
-17:52:24.0 |
HIP 57665 |
23.25 |
| 2026-10-02 00:00 |
11:49:26.27 |
-17:58:19.8 |
HIP 57744 |
20.43 |
| 2026-10-02 12:00 |
11:50:27.45 |
-18:04:16.2 |
HIP 57744 |
19.86 |
| 2026-10-03 00:00 |
11:51:28.75 |
-18:10:13.1 |
HIP 57744 |
29.44 |
| 2026-10-03 12:00 |
11:52:30.17 |
-18:16:10.4 |
HIP 58025 |
29.23 |
| 2026-10-04 00:00 |
11:53:31.72 |
-18:22:08.3 |
HIP 58025 |
26.11 |
| 2026-10-04 12:00 |
11:54:33.39 |
-18:28:06.6 |
HIP 58025 |
31.75 |
| 2026-10-05 00:00 |
11:55:35.19 |
-18:34:05.3 |
HIP 58279 |
24.63 |
| 2026-10-05 12:00 |
11:56:37.12 |
-18:40:04.5 |
HIP 58279 |
18.60 |
| 2026-10-06 00:00 |
11:57:39.17 |
-18:46:04.2 |
HIP 58343 |
13.25 |
| 2026-10-06 12:00 |
11:58:41.34 |
-18:52:04.2 |
HIP 58343 |
13.38 |
| 2026-10-07 00:00 |
11:59:43.65 |
-18:58:04.7 |
HIP 58343 |
26.23 |
| 2026-10-07 12:00 |
12:00:46.08 |
-19:04:05.5 |
HIP 58653 |
20.53 |
| 2026-10-08 00:00 |
12:01:48.64 |
-19:10:06.7 |
HIP 58653 |
10.46 |
| 2026-10-08 12:00 |
12:02:51.32 |
-19:16:08.2 |
HIP 58653 |
17.51 |
| 2026-10-09 00:00 |
12:03:54.14 |
-19:22:10.1 |
HIP 58653 |
31.87 |
| 2026-10-09 12:00 |
12:04:57.08 |
-19:28:12.4 |
HIP 59089 |
29.74 |
| 2026-10-10 00:00 |
12:06:00.15 |
-19:34:14.9 |
HIP 59089 |
14.85 |
| 2026-10-10 12:00 |
12:07:03.35 |
-19:40:17.8 |
HIP 59089 |
8.48 |
| 2026-10-11 00:00 |
12:08:06.68 |
-19:46:20.9 |
HIP 59089 |
20.99 |