메타데이터
| 항목 |
값 |
| Designation |
C/2011 Y3 (Boattini) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2011-08-22T22:31:41.001600Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:59Z |
| Obs used |
54 |
| NEO |
- |
| M1 |
11.700 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2012-01-01.0000000 |
| e |
0.70491483 |
| q (au) |
3.497843 |
| a (au) |
11.853673 |
| i (deg) |
26.516854 |
| Ω (om, deg) |
84.802605 |
| ω (w, deg) |
340.679907 |
| M (ma, deg) |
3.165186 |
밝기
산란 + 전체 선형
$$
M_a = (14.177 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.177 |
| n |
2.000 |
| gf |
0.997 |
| gb |
-0.953 |
| k |
1.000 |
| δ90 |
6.973 |
| 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 |
15:39:21.63 |
-06:15:30.7 |
HIP 76616 |
9.56 |
| 2026-09-20 12:00 |
15:39:25.28 |
-06:16:05.6 |
HIP 76616 |
10.23 |
| 2026-09-21 00:00 |
15:39:28.97 |
-06:16:40.5 |
HIP 76616 |
10.97 |
| 2026-09-21 12:00 |
15:39:32.69 |
-06:17:15.5 |
HIP 76616 |
11.77 |
| 2026-09-22 00:00 |
15:39:36.46 |
-06:17:50.4 |
HIP 76616 |
12.63 |
| 2026-09-22 12:00 |
15:39:40.27 |
-06:18:25.4 |
HIP 76616 |
13.53 |
| 2026-09-23 00:00 |
15:39:44.12 |
-06:19:00.4 |
HIP 76616 |
14.48 |
| 2026-09-23 12:00 |
15:39:48.01 |
-06:19:35.4 |
HIP 76616 |
15.45 |
| 2026-09-24 00:00 |
15:39:51.93 |
-06:20:10.5 |
HIP 76616 |
16.46 |
| 2026-09-24 12:00 |
15:39:55.90 |
-06:20:45.6 |
HIP 76616 |
17.49 |
| 2026-09-25 00:00 |
15:39:59.91 |
-06:21:20.6 |
HIP 76616 |
18.54 |
| 2026-09-25 12:00 |
15:40:03.95 |
-06:21:55.7 |
HIP 76616 |
19.62 |
| 2026-09-26 00:00 |
15:40:08.03 |
-06:22:30.9 |
HIP 76616 |
20.71 |
| 2026-09-26 12:00 |
15:40:12.15 |
-06:23:06.0 |
HIP 76616 |
21.82 |
| 2026-09-27 00:00 |
15:40:16.31 |
-06:23:41.1 |
HIP 76865 |
22.33 |
| 2026-09-27 12:00 |
15:40:20.51 |
-06:24:16.3 |
HIP 76865 |
21.23 |
| 2026-09-28 00:00 |
15:40:24.74 |
-06:24:51.4 |
HIP 76865 |
20.12 |
| 2026-09-28 12:00 |
15:40:29.01 |
-06:25:26.6 |
HIP 76865 |
19.02 |
| 2026-09-29 00:00 |
15:40:33.32 |
-06:26:01.7 |
HIP 76865 |
17.92 |
| 2026-09-29 12:00 |
15:40:37.66 |
-06:26:36.9 |
HIP 76865 |
16.83 |
| 2026-09-30 00:00 |
15:40:42.04 |
-06:27:12.0 |
HIP 76865 |
15.75 |
| 2026-09-30 12:00 |
15:40:46.46 |
-06:27:47.2 |
HIP 76865 |
14.68 |
| 2026-10-01 00:00 |
15:40:50.91 |
-06:28:22.3 |
HIP 76865 |
13.64 |
| 2026-10-01 12:00 |
15:40:55.40 |
-06:28:57.5 |
HIP 76865 |
12.63 |
| 2026-10-02 00:00 |
15:40:59.92 |
-06:29:32.6 |
HIP 76865 |
11.66 |
| 2026-10-02 12:00 |
15:41:04.48 |
-06:30:07.7 |
HIP 76865 |
10.74 |
| 2026-10-03 00:00 |
15:41:09.08 |
-06:30:42.8 |
HIP 76865 |
9.89 |
| 2026-10-03 12:00 |
15:41:13.71 |
-06:31:17.9 |
HIP 76865 |
9.14 |
| 2026-10-04 00:00 |
15:41:18.37 |
-06:31:53.0 |
HIP 76865 |
8.50 |
| 2026-10-04 12:00 |
15:41:23.07 |
-06:32:28.1 |
HIP 76865 |
8.03 |
| 2026-10-05 00:00 |
15:41:27.81 |
-06:33:03.2 |
HIP 76865 |
7.74 |
| 2026-10-05 12:00 |
15:41:32.57 |
-06:33:38.2 |
HIP 76865 |
7.67 |
| 2026-10-06 00:00 |
15:41:37.37 |
-06:34:13.2 |
HIP 76865 |
7.81 |
| 2026-10-06 12:00 |
15:41:42.21 |
-06:34:48.2 |
HIP 76865 |
8.18 |
| 2026-10-07 00:00 |
15:41:47.07 |
-06:35:23.1 |
HIP 76865 |
8.73 |
| 2026-10-07 12:00 |
15:41:51.97 |
-06:35:58.0 |
HIP 76865 |
9.45 |
| 2026-10-08 00:00 |
15:41:56.91 |
-06:36:32.9 |
HIP 76865 |
10.29 |
| 2026-10-08 12:00 |
15:42:01.87 |
-06:37:07.8 |
HIP 76865 |
11.24 |
| 2026-10-09 00:00 |
15:42:06.87 |
-06:37:42.6 |
HIP 76865 |
12.27 |
| 2026-10-09 12:00 |
15:42:11.90 |
-06:38:17.4 |
HIP 76865 |
13.36 |
| 2026-10-10 00:00 |
15:42:16.95 |
-06:38:52.2 |
HIP 76865 |
14.51 |
| 2026-10-10 12:00 |
15:42:22.04 |
-06:39:26.9 |
HIP 76865 |
15.69 |
| 2026-10-11 00:00 |
15:42:27.17 |
-06:40:01.6 |
HIP 76865 |
16.92 |