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) |
| 2026-03-26 00:00 |
17:33:39.32 |
+04:11:15.5 |
HIP 86003 |
15.69 |
| 2026-03-26 12:00 |
17:33:46.35 |
+04:15:29.1 |
HIP 86003 |
16.13 |
| 2026-03-27 00:00 |
17:33:53.16 |
+04:19:43.6 |
HIP 86003 |
17.82 |
| 2026-03-27 12:00 |
17:33:59.74 |
+04:23:59.0 |
HIP 86003 |
20.46 |
| 2026-03-28 00:00 |
17:34:06.09 |
+04:28:15.3 |
HIP 86003 |
23.72 |
| 2026-03-28 12:00 |
17:34:12.22 |
+04:32:32.5 |
HIP 86003 |
27.39 |
| 2026-03-29 00:00 |
17:34:18.12 |
+04:36:50.6 |
HIP 86084 |
30.47 |
| 2026-03-29 12:00 |
17:34:23.80 |
+04:41:09.5 |
HIP 86084 |
26.23 |
| 2026-03-30 00:00 |
17:34:29.24 |
+04:45:29.2 |
HIP 86084 |
22.14 |
| 2026-03-30 12:00 |
17:34:34.45 |
+04:49:49.9 |
HIP 86084 |
18.30 |
| 2026-03-31 00:00 |
17:34:39.43 |
+04:54:11.3 |
HIP 86084 |
14.89 |
| 2026-03-31 12:00 |
17:34:44.18 |
+04:58:33.5 |
HIP 86084 |
12.30 |
| 2026-04-01 00:00 |
17:34:48.69 |
+05:02:56.6 |
HIP 86084 |
11.10 |
| 2026-04-01 12:00 |
17:34:52.97 |
+05:07:20.4 |
HIP 86084 |
11.72 |
| 2026-04-02 00:00 |
17:34:57.02 |
+05:11:45.0 |
HIP 86084 |
13.92 |
| 2026-04-02 12:00 |
17:35:00.83 |
+05:16:10.3 |
HIP 86084 |
17.10 |
| 2026-04-03 00:00 |
17:35:04.39 |
+05:20:36.4 |
HIP 86084 |
20.82 |
| 2026-04-03 12:00 |
17:35:07.73 |
+05:25:03.2 |
HIP 86116 |
20.42 |
| 2026-04-04 00:00 |
17:35:10.82 |
+05:29:30.7 |
HIP 86116 |
16.45 |
| 2026-04-04 12:00 |
17:35:13.67 |
+05:33:59.0 |
HIP 86116 |
12.90 |
| 2026-04-05 00:00 |
17:35:16.28 |
+05:38:27.9 |
HIP 86116 |
10.20 |
| 2026-04-05 12:00 |
17:35:18.64 |
+05:42:57.4 |
HIP 86116 |
9.15 |
| 2026-04-06 00:00 |
17:35:20.76 |
+05:47:27.7 |
HIP 86116 |
10.29 |
| 2026-04-06 12:00 |
17:35:22.64 |
+05:51:58.5 |
HIP 86024 |
12.71 |
| 2026-04-07 00:00 |
17:35:24.27 |
+05:56:30.0 |
HIP 86024 |
10.17 |
| 2026-04-07 12:00 |
17:35:25.66 |
+06:01:02.0 |
HIP 86024 |
9.24 |
| 2026-04-08 00:00 |
17:35:26.80 |
+06:05:34.7 |
HIP 86024 |
10.38 |
| 2026-04-08 12:00 |
17:35:27.69 |
+06:10:07.8 |
HIP 86024 |
13.05 |
| 2026-04-09 00:00 |
17:35:28.33 |
+06:14:41.6 |
HIP 86024 |
16.54 |
| 2026-04-09 12:00 |
17:35:28.72 |
+06:19:15.8 |
HIP 85982 |
20.29 |
| 2026-04-10 00:00 |
17:35:28.86 |
+06:23:50.6 |
HIP 85982 |
17.99 |
| 2026-04-10 12:00 |
17:35:28.74 |
+06:28:25.8 |
HIP 85982 |
16.60 |
| 2026-04-11 00:00 |
17:35:28.38 |
+06:33:01.5 |
HIP 85982 |
16.35 |
| 2026-04-11 12:00 |
17:35:27.76 |
+06:37:37.7 |
HIP 85982 |
17.31 |
| 2026-04-12 00:00 |
17:35:26.89 |
+06:42:14.3 |
HIP 85982 |
19.29 |
| 2026-04-12 12:00 |
17:35:25.76 |
+06:46:51.2 |
HIP 86125 |
17.04 |
| 2026-04-13 00:00 |
17:35:24.37 |
+06:51:28.5 |
HIP 86125 |
13.74 |
| 2026-04-13 12:00 |
17:35:22.73 |
+06:56:06.2 |
HIP 86125 |
11.46 |
| 2026-04-14 00:00 |
17:35:20.83 |
+07:00:44.3 |
HIP 86125 |
10.88 |
| 2026-04-14 12:00 |
17:35:18.68 |
+07:05:22.6 |
HIP 86125 |
12.27 |
| 2026-04-15 00:00 |
17:35:16.27 |
+07:10:01.2 |
HIP 86125 |
15.09 |
| 2026-04-15 12:00 |
17:35:13.60 |
+07:14:40.0 |
HIP 86125 |
18.72 |
| 2026-04-16 00:00 |
17:35:10.66 |
+07:19:19.1 |
HIP 86174 |
21.06 |