메타데이터
| 항목 |
값 |
| Designation |
C/2008 S3 (Boattini) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2011-06-07T00:27:12.735360Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:23Z |
| Obs used |
1909 |
| NEO |
- |
| M1 |
8.300 |
| K1 |
6.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2011-04-19.0000000 |
| e |
1.00107749 |
| q (au) |
8.017919 |
| a (au) |
-7441.315951 |
| i (deg) |
162.702798 |
| Ω (om, deg) |
54.938054 |
| ω (w, deg) |
39.937767 |
| M (ma, deg) |
-0.000075 |
밝기
산란 + 전체 선형
$$
M_a = (5.796 + 3.046\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.796 |
| n |
3.046 |
| gf |
0.978 |
| gb |
-0.935 |
| k |
1.000 |
| δ90 |
9.945 |
| 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 |
17:16:07.88 |
-15:45:51.9 |
HIP 84450 |
9.58 |
| 2026-05-12 12:00 |
17:16:03.37 |
-15:45:45.6 |
HIP 84450 |
9.38 |
| 2026-05-13 00:00 |
17:15:58.85 |
-15:45:39.2 |
HIP 84450 |
9.30 |
| 2026-05-13 12:00 |
17:15:54.31 |
-15:45:32.9 |
HIP 84450 |
9.36 |
| 2026-05-14 00:00 |
17:15:49.75 |
-15:45:26.7 |
HIP 84450 |
9.53 |
| 2026-05-14 12:00 |
17:15:45.17 |
-15:45:20.4 |
HIP 84450 |
9.83 |
| 2026-05-15 00:00 |
17:15:40.57 |
-15:45:14.2 |
HIP 84450 |
10.25 |
| 2026-05-15 12:00 |
17:15:35.96 |
-15:45:08.1 |
HIP 84450 |
10.76 |
| 2026-05-16 00:00 |
17:15:31.32 |
-15:45:02.0 |
HIP 84450 |
11.36 |
| 2026-05-16 12:00 |
17:15:26.68 |
-15:44:55.9 |
HIP 84450 |
12.04 |
| 2026-05-17 00:00 |
17:15:22.01 |
-15:44:49.9 |
HIP 84450 |
12.78 |
| 2026-05-17 12:00 |
17:15:17.33 |
-15:44:43.9 |
HIP 84351 |
13.12 |
| 2026-05-18 00:00 |
17:15:12.64 |
-15:44:37.9 |
HIP 84351 |
12.51 |
| 2026-05-18 12:00 |
17:15:07.93 |
-15:44:32.0 |
HIP 84351 |
11.98 |
| 2026-05-19 00:00 |
17:15:03.20 |
-15:44:26.1 |
HIP 84351 |
11.52 |
| 2026-05-19 12:00 |
17:14:58.46 |
-15:44:20.3 |
HIP 84351 |
11.17 |
| 2026-05-20 00:00 |
17:14:53.71 |
-15:44:14.5 |
HIP 84351 |
10.92 |
| 2026-05-20 12:00 |
17:14:48.94 |
-15:44:08.8 |
HIP 84351 |
10.79 |
| 2026-05-21 00:00 |
17:14:44.16 |
-15:44:03.1 |
HIP 84351 |
10.78 |
| 2026-05-21 12:00 |
17:14:39.37 |
-15:43:57.4 |
HIP 84351 |
10.89 |
| 2026-05-22 00:00 |
17:14:34.56 |
-15:43:51.8 |
HIP 84351 |
11.12 |
| 2026-05-22 12:00 |
17:14:29.74 |
-15:43:46.2 |
HIP 84351 |
11.47 |
| 2026-05-23 00:00 |
17:14:24.91 |
-15:43:40.7 |
HIP 84351 |
11.92 |
| 2026-05-23 12:00 |
17:14:20.07 |
-15:43:35.2 |
HIP 84351 |
12.46 |
| 2026-05-24 00:00 |
17:14:15.22 |
-15:43:29.8 |
HIP 84351 |
13.08 |
| 2026-05-24 12:00 |
17:14:10.35 |
-15:43:24.4 |
HIP 84269 |
12.70 |
| 2026-05-25 00:00 |
17:14:05.48 |
-15:43:19.1 |
HIP 84269 |
11.92 |
| 2026-05-25 12:00 |
17:14:00.60 |
-15:43:13.8 |
HIP 84269 |
11.20 |
| 2026-05-26 00:00 |
17:13:55.70 |
-15:43:08.6 |
HIP 84269 |
10.56 |
| 2026-05-26 12:00 |
17:13:50.80 |
-15:43:03.4 |
HIP 84269 |
10.03 |
| 2026-05-27 00:00 |
17:13:45.88 |
-15:42:58.3 |
HIP 84269 |
9.61 |
| 2026-05-27 12:00 |
17:13:40.96 |
-15:42:53.2 |
HIP 84269 |
9.32 |
| 2026-05-28 00:00 |
17:13:36.03 |
-15:42:48.1 |
HIP 84269 |
9.19 |
| 2026-05-28 12:00 |
17:13:31.09 |
-15:42:43.1 |
HIP 84269 |
9.20 |
| 2026-05-29 00:00 |
17:13:26.14 |
-15:42:38.2 |
HIP 84269 |
9.37 |
| 2026-05-29 12:00 |
17:13:21.19 |
-15:42:33.3 |
HIP 84269 |
9.69 |
| 2026-05-30 00:00 |
17:13:16.23 |
-15:42:28.5 |
HIP 84269 |
10.14 |
| 2026-05-30 12:00 |
17:13:11.26 |
-15:42:23.7 |
HIP 84269 |
10.71 |
| 2026-05-31 00:00 |
17:13:06.28 |
-15:42:19.0 |
HIP 84269 |
11.38 |
| 2026-05-31 12:00 |
17:13:01.30 |
-15:42:14.3 |
HIP 84269 |
12.13 |
| 2026-06-01 00:00 |
17:12:56.31 |
-15:42:09.7 |
HIP 84269 |
12.95 |
| 2026-06-01 12:00 |
17:12:51.32 |
-15:42:05.1 |
HIP 84269 |
13.83 |
| 2026-06-02 00:00 |
17:12:46.32 |
-15:42:00.6 |
HIP 84269 |
14.76 |