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) |
| 2026-03-26 00:00 |
00:28:46.91 |
+04:48:04.5 |
HIP 2195 |
19.64 |
| 2026-03-26 12:00 |
00:29:28.40 |
+04:52:32.5 |
HIP 2358 |
10.08 |
| 2026-03-27 00:00 |
00:30:09.87 |
+04:57:00.3 |
HIP 2358 |
5.41 |
| 2026-03-27 12:00 |
00:30:51.33 |
+05:01:27.9 |
HIP 2358 |
14.49 |
| 2026-03-28 00:00 |
00:31:32.79 |
+05:05:55.4 |
HIP 2510 |
15.73 |
| 2026-03-28 12:00 |
00:32:14.23 |
+05:10:22.6 |
HIP 2510 |
20.53 |
| 2026-03-29 00:00 |
00:32:55.67 |
+05:14:49.7 |
HIP 2659 |
21.20 |
| 2026-03-29 12:00 |
00:33:37.09 |
+05:19:16.5 |
HIP 2659 |
22.43 |
| 2026-03-30 00:00 |
00:34:18.51 |
+05:23:43.2 |
HIP 2659 |
28.44 |
| 2026-03-30 12:00 |
00:34:59.91 |
+05:28:09.7 |
HIP 2918 |
29.36 |
| 2026-03-31 00:00 |
00:35:41.31 |
+05:32:35.9 |
HIP 2918 |
20.42 |
| 2026-03-31 12:00 |
00:36:22.69 |
+05:37:02.0 |
HIP 2918 |
14.97 |
| 2026-04-01 00:00 |
00:37:04.06 |
+05:41:27.8 |
HIP 2918 |
16.80 |
| 2026-04-01 12:00 |
00:37:45.42 |
+05:45:53.4 |
HIP 2991 |
6.34 |
| 2026-04-02 00:00 |
00:38:26.77 |
+05:50:18.8 |
HIP 2991 |
6.36 |
| 2026-04-02 12:00 |
00:39:08.11 |
+05:54:43.9 |
HIP 3033 |
10.66 |
| 2026-04-03 00:00 |
00:39:49.43 |
+05:59:08.8 |
HIP 3033 |
18.78 |
| 2026-04-03 12:00 |
00:40:30.75 |
+06:03:33.5 |
HIP 3033 |
29.01 |
| 2026-04-04 00:00 |
00:41:12.05 |
+06:07:58.0 |
HIP 3338 |
34.01 |
| 2026-04-04 12:00 |
00:41:53.34 |
+06:12:22.2 |
HIP 3393 |
30.02 |
| 2026-04-05 00:00 |
00:42:34.61 |
+06:16:46.1 |
HIP 3393 |
20.27 |
| 2026-04-05 12:00 |
00:43:15.87 |
+06:21:09.8 |
HIP 3393 |
13.02 |
| 2026-04-06 00:00 |
00:43:57.12 |
+06:25:33.2 |
HIP 3393 |
13.31 |
| 2026-04-06 12:00 |
00:44:38.36 |
+06:29:56.4 |
HIP 3393 |
20.81 |
| 2026-04-07 00:00 |
00:45:19.58 |
+06:34:19.3 |
HIP 3393 |
30.61 |
| 2026-04-07 12:00 |
00:46:00.79 |
+06:38:41.9 |
HIP 3697 |
21.36 |
| 2026-04-08 00:00 |
00:46:41.98 |
+06:43:04.3 |
HIP 3697 |
10.43 |
| 2026-04-08 12:00 |
00:47:23.16 |
+06:47:26.3 |
HIP 3697 |
2.98 |
| 2026-04-09 00:00 |
00:48:04.33 |
+06:51:48.1 |
HIP 3697 |
12.49 |
| 2026-04-09 12:00 |
00:48:45.48 |
+06:56:09.6 |
HIP 3760 |
22.92 |
| 2026-04-10 00:00 |
00:49:26.61 |
+07:00:30.8 |
HIP 3760 |
24.51 |
| 2026-04-10 12:00 |
00:50:07.73 |
+07:04:51.7 |
HIP 3972 |
17.65 |
| 2026-04-11 00:00 |
00:50:48.83 |
+07:09:12.3 |
HIP 3972 |
15.66 |
| 2026-04-11 12:00 |
00:51:29.92 |
+07:13:32.6 |
HIP 3972 |
20.60 |
| 2026-04-12 00:00 |
00:52:10.99 |
+07:17:52.6 |
HIP 4219 |
24.47 |
| 2026-04-12 12:00 |
00:52:52.04 |
+07:22:12.3 |
HIP 4219 |
15.42 |
| 2026-04-13 00:00 |
00:53:33.08 |
+07:26:31.6 |
HIP 4219 |
11.02 |
| 2026-04-13 12:00 |
00:54:14.09 |
+07:30:50.6 |
HIP 4219 |
15.79 |
| 2026-04-14 00:00 |
00:54:55.09 |
+07:35:09.3 |
HIP 4219 |
24.92 |
| 2026-04-14 12:00 |
00:55:36.07 |
+07:39:27.6 |
HIP 4447 |
20.66 |
| 2026-04-15 00:00 |
00:56:17.03 |
+07:43:45.6 |
HIP 4447 |
14.38 |
| 2026-04-15 12:00 |
00:56:57.97 |
+07:48:03.3 |
HIP 4447 |
15.15 |
| 2026-04-16 00:00 |
00:57:38.89 |
+07:52:20.6 |
HIP 4526 |
16.38 |