메타데이터
| 항목 |
값 |
| Designation |
206P/Barnard-Boattini |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2008-10-24T01:07:08.970240Z |
| Orbit solution date (soln_date, UTC) |
2023-10-09T23:01:17Z |
| Obs used |
284 |
| NEO |
Yes |
| M1 |
20.300 |
| K1 |
10.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2006-07-06.0000000 |
| e |
0.64853407 |
| q (au) |
1.136482 |
| a (au) |
3.233549 |
| i (deg) |
33.203832 |
| Ω (om, deg) |
204.376478 |
| ω (w, deg) |
181.361053 |
| M (ma, deg) |
217.437581 |
밝기
산란 + 전체 선형
$$
M_a = (20.000 + 2.307\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
20.000 |
| n |
2.307 |
| gf |
1.000 |
| gb |
-0.849 |
| k |
0.973 |
| 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 |
17:26:45.51 |
+11:15:11.8 |
HIP 85460 |
17.97 |
| 2026-05-12 12:00 |
17:26:29.31 |
+11:19:22.8 |
HIP 85460 |
20.31 |
| 2026-05-13 00:00 |
17:26:12.89 |
+11:23:32.4 |
HIP 85460 |
23.91 |
| 2026-05-13 12:00 |
17:25:56.26 |
+11:27:40.6 |
HIP 85460 |
28.29 |
| 2026-05-14 00:00 |
17:25:39.40 |
+11:31:47.3 |
HIP 85460 |
33.16 |
| 2026-05-14 12:00 |
17:25:22.32 |
+11:35:52.5 |
HIP 85460 |
38.33 |
| 2026-05-15 00:00 |
17:25:05.04 |
+11:39:56.1 |
HIP 85460 |
43.72 |
| 2026-05-15 12:00 |
17:24:47.54 |
+11:43:58.2 |
HIP 84965 |
41.87 |
| 2026-05-16 00:00 |
17:24:29.83 |
+11:47:58.6 |
HIP 84965 |
38.15 |
| 2026-05-16 12:00 |
17:24:11.91 |
+11:51:57.4 |
HIP 84965 |
34.97 |
| 2026-05-17 00:00 |
17:23:53.79 |
+11:55:54.5 |
HIP 84965 |
32.52 |
| 2026-05-17 12:00 |
17:23:35.46 |
+11:59:49.9 |
HIP 84965 |
30.97 |
| 2026-05-18 00:00 |
17:23:16.94 |
+12:03:43.5 |
HIP 84965 |
30.47 |
| 2026-05-18 12:00 |
17:22:58.22 |
+12:07:35.3 |
HIP 84962 |
27.24 |
| 2026-05-19 00:00 |
17:22:39.31 |
+12:11:25.3 |
HIP 84962 |
21.52 |
| 2026-05-19 12:00 |
17:22:20.21 |
+12:15:13.4 |
HIP 84962 |
16.02 |
| 2026-05-20 00:00 |
17:22:00.92 |
+12:18:59.6 |
HIP 84962 |
11.09 |
| 2026-05-20 12:00 |
17:21:41.45 |
+12:22:43.9 |
HIP 84962 |
7.95 |
| 2026-05-21 00:00 |
17:21:21.80 |
+12:26:26.3 |
HIP 84962 |
8.79 |
| 2026-05-21 12:00 |
17:21:01.97 |
+12:30:06.6 |
HIP 84962 |
12.88 |
| 2026-05-22 00:00 |
17:20:41.96 |
+12:33:45.0 |
HIP 84962 |
18.16 |
| 2026-05-22 12:00 |
17:20:21.78 |
+12:37:21.2 |
HIP 84962 |
23.85 |
| 2026-05-23 00:00 |
17:20:01.44 |
+12:40:55.4 |
HIP 84723 |
23.23 |
| 2026-05-23 12:00 |
17:19:40.93 |
+12:44:27.5 |
HIP 84723 |
23.80 |
| 2026-05-24 00:00 |
17:19:20.26 |
+12:47:57.5 |
HIP 84723 |
25.82 |
| 2026-05-24 12:00 |
17:18:59.43 |
+12:51:25.2 |
HIP 84723 |
28.99 |
| 2026-05-25 00:00 |
17:18:38.44 |
+12:54:50.8 |
HIP 84560 |
25.24 |
| 2026-05-25 12:00 |
17:18:17.30 |
+12:58:14.1 |
HIP 84560 |
19.08 |
| 2026-05-26 00:00 |
17:17:56.02 |
+13:01:35.2 |
HIP 84560 |
12.91 |
| 2026-05-26 12:00 |
17:17:34.59 |
+13:04:54.0 |
HIP 84560 |
6.74 |
| 2026-05-27 00:00 |
17:17:13.02 |
+13:08:10.5 |
HIP 84560 |
0.70 |
| 2026-05-27 12:00 |
17:16:51.31 |
+13:11:24.6 |
HIP 84560 |
5.68 |
| 2026-05-28 00:00 |
17:16:29.46 |
+13:14:36.4 |
HIP 84560 |
11.87 |
| 2026-05-28 12:00 |
17:16:07.48 |
+13:17:45.8 |
HIP 84560 |
18.08 |
| 2026-05-29 00:00 |
17:15:45.38 |
+13:20:52.7 |
HIP 84584 |
24.12 |
| 2026-05-29 12:00 |
17:15:23.15 |
+13:23:57.2 |
HIP 84584 |
29.90 |
| 2026-05-30 00:00 |
17:15:00.80 |
+13:26:59.3 |
HIP 84584 |
35.84 |
| 2026-05-30 12:00 |
17:14:38.34 |
+13:29:58.8 |
HIP 84167 |
36.17 |
| 2026-05-31 00:00 |
17:14:15.76 |
+13:32:55.8 |
HIP 84167 |
32.76 |
| 2026-05-31 12:00 |
17:13:53.07 |
+13:35:50.2 |
HIP 84167 |
30.22 |
| 2026-06-01 00:00 |
17:13:30.28 |
+13:38:42.1 |
HIP 84167 |
28.77 |
| 2026-06-01 12:00 |
17:13:07.38 |
+13:41:31.4 |
HIP 84167 |
28.59 |
| 2026-06-02 00:00 |
17:12:44.39 |
+13:44:18.0 |
HIP 84167 |
29.71 |