메타데이터
| 항목 |
값 |
| Designation |
340P/Boattini |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2008-02-27T00:31:11.251200Z |
| Orbit solution date (soln_date, UTC) |
2021-07-06T16:00:11Z |
| Obs used |
289 |
| NEO |
- |
| M1 |
15.200 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2010-11-10.0000000 |
| e |
0.28087305 |
| q (au) |
3.047158 |
| a (au) |
4.237302 |
| i (deg) |
2.082087 |
| Ω (om, deg) |
291.827550 |
| ω (w, deg) |
36.019217 |
| M (ma, deg) |
111.526354 |
밝기
산란 + 전체 선형
$$
M_a = (H_0 + n\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
- |
| n |
- |
| gf |
- |
| gb |
- |
| k |
- |
| δ90 |
- |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
02:59:15.89 |
+19:05:02.4 |
HIP 13855 |
15.09 |
| 2026-07-29 12:00 |
02:59:39.63 |
+19:06:54.3 |
HIP 13855 |
19.19 |
| 2026-07-30 00:00 |
03:00:03.19 |
+19:08:45.4 |
HIP 14062 |
22.21 |
| 2026-07-30 12:00 |
03:00:26.57 |
+19:10:35.5 |
HIP 14062 |
17.15 |
| 2026-07-31 00:00 |
03:00:49.76 |
+19:12:24.7 |
HIP 14062 |
12.78 |
| 2026-07-31 12:00 |
03:01:12.77 |
+19:14:13.0 |
HIP 14062 |
9.96 |
| 2026-08-01 00:00 |
03:01:35.59 |
+19:16:00.4 |
HIP 14062 |
10.02 |
| 2026-08-01 12:00 |
03:01:58.22 |
+19:17:46.9 |
HIP 14062 |
12.85 |
| 2026-08-02 00:00 |
03:02:20.66 |
+19:19:32.5 |
HIP 14140 |
14.41 |
| 2026-08-02 12:00 |
03:02:42.90 |
+19:21:17.1 |
HIP 14140 |
17.06 |
| 2026-08-03 00:00 |
03:03:04.96 |
+19:23:00.8 |
HIP 14140 |
20.83 |
| 2026-08-03 12:00 |
03:03:26.82 |
+19:24:43.6 |
HIP 14201 |
23.76 |
| 2026-08-04 00:00 |
03:03:48.48 |
+19:26:25.5 |
HIP 14201 |
23.63 |
| 2026-08-04 12:00 |
03:04:09.95 |
+19:28:06.4 |
HIP 14201 |
24.69 |
| 2026-08-05 00:00 |
03:04:31.21 |
+19:29:46.4 |
HIP 14201 |
26.76 |
| 2026-08-05 12:00 |
03:04:52.28 |
+19:31:25.5 |
HIP 14201 |
29.60 |
| 2026-08-06 00:00 |
03:05:13.14 |
+19:33:03.6 |
HIP 14484 |
25.31 |
| 2026-08-06 12:00 |
03:05:33.80 |
+19:34:40.8 |
HIP 14484 |
20.24 |
| 2026-08-07 00:00 |
03:05:54.25 |
+19:36:17.0 |
HIP 14484 |
15.26 |
| 2026-08-07 12:00 |
03:06:14.49 |
+19:37:52.4 |
HIP 14484 |
10.43 |
| 2026-08-08 00:00 |
03:06:34.53 |
+19:39:26.7 |
HIP 14484 |
5.98 |
| 2026-08-08 12:00 |
03:06:54.35 |
+19:41:00.1 |
HIP 14484 |
3.47 |
| 2026-08-09 00:00 |
03:07:13.97 |
+19:42:32.6 |
HIP 14484 |
6.02 |
| 2026-08-09 12:00 |
03:07:33.36 |
+19:44:04.1 |
HIP 14484 |
10.34 |
| 2026-08-10 00:00 |
03:07:52.54 |
+19:45:34.6 |
HIP 14484 |
14.91 |
| 2026-08-10 12:00 |
03:08:11.51 |
+19:47:04.2 |
HIP 14484 |
19.51 |
| 2026-08-11 00:00 |
03:08:30.25 |
+19:48:32.8 |
HIP 14689 |
21.14 |
| 2026-08-11 12:00 |
03:08:48.77 |
+19:50:00.5 |
HIP 14689 |
16.73 |
| 2026-08-12 00:00 |
03:09:07.07 |
+19:51:27.1 |
HIP 14689 |
12.51 |
| 2026-08-12 12:00 |
03:09:25.15 |
+19:52:52.9 |
HIP 14689 |
8.65 |
| 2026-08-13 00:00 |
03:09:43.00 |
+19:54:17.6 |
HIP 14689 |
5.81 |
| 2026-08-13 12:00 |
03:10:00.63 |
+19:55:41.4 |
HIP 14689 |
5.62 |
| 2026-08-14 00:00 |
03:10:18.02 |
+19:57:04.2 |
HIP 14689 |
8.18 |
| 2026-08-14 12:00 |
03:10:35.19 |
+19:58:26.0 |
HIP 14689 |
11.75 |
| 2026-08-15 00:00 |
03:10:52.12 |
+19:59:46.8 |
HIP 14689 |
15.62 |
| 2026-08-15 12:00 |
03:11:08.83 |
+20:01:06.7 |
HIP 14838 |
18.78 |
| 2026-08-16 00:00 |
03:11:25.30 |
+20:02:25.6 |
HIP 14838 |
19.05 |
| 2026-08-16 12:00 |
03:11:41.53 |
+20:03:43.5 |
HIP 14838 |
20.14 |
| 2026-08-17 00:00 |
03:11:57.53 |
+20:05:00.4 |
HIP 14838 |
21.91 |
| 2026-08-17 12:00 |
03:12:13.29 |
+20:06:16.3 |
HIP 14838 |
24.17 |
| 2026-08-18 00:00 |
03:12:28.81 |
+20:07:31.3 |
HIP 14838 |
26.77 |
| 2026-08-18 12:00 |
03:12:44.09 |
+20:08:45.2 |
HIP 14838 |
29.60 |
| 2026-08-19 00:00 |
03:12:59.13 |
+20:09:58.2 |
HIP 15100 |
27.44 |