메타데이터
| 항목 |
값 |
| Designation |
C/2010 FB87 (WISE-Garradd) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-11-07T09:21:42.255360Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:41Z |
| Obs used |
613 |
| NEO |
- |
| M1 |
11.100 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2011-05-28.0000000 |
| e |
0.99050085 |
| q (au) |
2.842763 |
| a (au) |
299.264939 |
| i (deg) |
107.625358 |
| Ω (om, deg) |
89.902192 |
| ω (w, deg) |
265.025840 |
| M (ma, deg) |
0.038382 |
밝기
산란 + 전체 선형
$$
M_a = (10.840 + 3.477\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.840 |
| n |
3.477 |
| gf |
1.000 |
| gb |
-0.812 |
| k |
0.800 |
| 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) |
| 2026-09-20 00:00 |
03:30:39.90 |
+69:44:41.9 |
HIP 16249 |
18.32 |
| 2026-09-20 12:00 |
03:30:33.69 |
+69:45:15.7 |
HIP 16249 |
18.67 |
| 2026-09-21 00:00 |
03:30:27.41 |
+69:45:49.2 |
HIP 16249 |
19.03 |
| 2026-09-21 12:00 |
03:30:21.04 |
+69:46:22.5 |
HIP 16249 |
19.42 |
| 2026-09-22 00:00 |
03:30:14.59 |
+69:46:55.4 |
HIP 16249 |
19.82 |
| 2026-09-22 12:00 |
03:30:08.06 |
+69:47:28.1 |
HIP 16249 |
20.24 |
| 2026-09-23 00:00 |
03:30:01.46 |
+69:48:00.5 |
HIP 16249 |
20.67 |
| 2026-09-23 12:00 |
03:29:54.77 |
+69:48:32.7 |
HIP 16249 |
21.12 |
| 2026-09-24 00:00 |
03:29:48.01 |
+69:49:04.6 |
HIP 16249 |
21.59 |
| 2026-09-24 12:00 |
03:29:41.16 |
+69:49:36.1 |
HIP 16249 |
22.06 |
| 2026-09-25 00:00 |
03:29:34.24 |
+69:50:07.4 |
HIP 16249 |
22.56 |
| 2026-09-25 12:00 |
03:29:27.24 |
+69:50:38.5 |
HIP 16249 |
23.06 |
| 2026-09-26 00:00 |
03:29:20.16 |
+69:51:09.2 |
HIP 16249 |
23.57 |
| 2026-09-26 12:00 |
03:29:13.01 |
+69:51:39.6 |
HIP 16249 |
24.10 |
| 2026-09-27 00:00 |
03:29:05.78 |
+69:52:09.8 |
HIP 16249 |
24.64 |
| 2026-09-27 12:00 |
03:28:58.48 |
+69:52:39.6 |
HIP 16249 |
25.18 |
| 2026-09-28 00:00 |
03:28:51.10 |
+69:53:09.1 |
HIP 16249 |
25.74 |
| 2026-09-28 12:00 |
03:28:43.64 |
+69:53:38.4 |
HIP 16249 |
26.30 |
| 2026-09-29 00:00 |
03:28:36.11 |
+69:54:07.3 |
HIP 16249 |
26.87 |
| 2026-09-29 12:00 |
03:28:28.50 |
+69:54:35.9 |
HIP 16249 |
27.46 |
| 2026-09-30 00:00 |
03:28:20.82 |
+69:55:04.2 |
HIP 16249 |
28.04 |
| 2026-09-30 12:00 |
03:28:13.07 |
+69:55:32.2 |
HIP 16249 |
28.64 |
| 2026-10-01 00:00 |
03:28:05.24 |
+69:55:59.9 |
HIP 15851 |
28.00 |
| 2026-10-01 12:00 |
03:27:57.34 |
+69:56:27.2 |
HIP 15851 |
27.20 |
| 2026-10-02 00:00 |
03:27:49.37 |
+69:56:54.3 |
HIP 15851 |
26.40 |
| 2026-10-02 12:00 |
03:27:41.33 |
+69:57:21.0 |
HIP 15851 |
25.60 |
| 2026-10-03 00:00 |
03:27:33.22 |
+69:57:47.4 |
HIP 15851 |
24.81 |
| 2026-10-03 12:00 |
03:27:25.03 |
+69:58:13.4 |
HIP 15851 |
24.01 |
| 2026-10-04 00:00 |
03:27:16.78 |
+69:58:39.1 |
HIP 15851 |
23.22 |
| 2026-10-04 12:00 |
03:27:08.45 |
+69:59:04.5 |
HIP 15851 |
22.43 |
| 2026-10-05 00:00 |
03:27:00.06 |
+69:59:29.5 |
HIP 15851 |
21.64 |
| 2026-10-05 12:00 |
03:26:51.60 |
+69:59:54.2 |
HIP 15851 |
20.85 |
| 2026-10-06 00:00 |
03:26:43.07 |
+70:00:18.6 |
HIP 15851 |
20.08 |
| 2026-10-06 12:00 |
03:26:34.47 |
+70:00:42.6 |
HIP 15851 |
19.30 |
| 2026-10-07 00:00 |
03:26:25.81 |
+70:01:06.2 |
HIP 15851 |
18.53 |
| 2026-10-07 12:00 |
03:26:17.08 |
+70:01:29.5 |
HIP 15851 |
17.77 |
| 2026-10-08 00:00 |
03:26:08.28 |
+70:01:52.5 |
HIP 15851 |
17.02 |
| 2026-10-08 12:00 |
03:25:59.42 |
+70:02:15.0 |
HIP 15851 |
16.28 |
| 2026-10-09 00:00 |
03:25:50.50 |
+70:02:37.3 |
HIP 15851 |
15.56 |
| 2026-10-09 12:00 |
03:25:41.51 |
+70:02:59.1 |
HIP 15851 |
14.85 |
| 2026-10-10 00:00 |
03:25:32.46 |
+70:03:20.6 |
HIP 15851 |
14.15 |
| 2026-10-10 12:00 |
03:25:23.35 |
+70:03:41.7 |
HIP 15851 |
13.48 |
| 2026-10-11 00:00 |
03:25:14.17 |
+70:04:02.5 |
HIP 15851 |
12.83 |