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) |
| 2026-09-20 00:00 |
03:19:45.33 |
+20:51:30.3 |
HIP 15608 |
21.38 |
| 2026-09-20 12:00 |
03:19:42.33 |
+20:51:32.9 |
HIP 15608 |
21.97 |
| 2026-09-21 00:00 |
03:19:39.05 |
+20:51:34.5 |
HIP 15608 |
22.62 |
| 2026-09-21 12:00 |
03:19:35.46 |
+20:51:34.8 |
HIP 15608 |
23.32 |
| 2026-09-22 00:00 |
03:19:31.59 |
+20:51:34.0 |
HIP 15608 |
24.07 |
| 2026-09-22 12:00 |
03:19:27.42 |
+20:51:31.9 |
HIP 15608 |
24.89 |
| 2026-09-23 00:00 |
03:19:22.96 |
+20:51:28.7 |
HIP 15608 |
25.76 |
| 2026-09-23 12:00 |
03:19:18.21 |
+20:51:24.4 |
HIP 15608 |
26.70 |
| 2026-09-24 00:00 |
03:19:13.17 |
+20:51:18.8 |
HIP 15608 |
27.70 |
| 2026-09-24 12:00 |
03:19:07.84 |
+20:51:12.0 |
HIP 15608 |
28.77 |
| 2026-09-25 00:00 |
03:19:02.22 |
+20:51:04.1 |
HIP 15608 |
29.91 |
| 2026-09-25 12:00 |
03:18:56.32 |
+20:50:55.0 |
HIP 15608 |
31.12 |
| 2026-09-26 00:00 |
03:18:50.12 |
+20:50:44.6 |
HIP 15608 |
32.39 |
| 2026-09-26 12:00 |
03:18:43.64 |
+20:50:33.1 |
HIP 15608 |
33.74 |
| 2026-09-27 00:00 |
03:18:36.87 |
+20:50:20.4 |
HIP 15608 |
35.16 |
| 2026-09-27 12:00 |
03:18:29.82 |
+20:50:06.5 |
HIP 15608 |
36.65 |
| 2026-09-28 00:00 |
03:18:22.48 |
+20:49:51.3 |
HIP 15198 |
35.72 |
| 2026-09-28 12:00 |
03:18:14.86 |
+20:49:35.0 |
HIP 15198 |
33.92 |
| 2026-09-29 00:00 |
03:18:06.95 |
+20:49:17.5 |
HIP 15198 |
32.05 |
| 2026-09-29 12:00 |
03:17:58.77 |
+20:48:58.8 |
HIP 15198 |
30.12 |
| 2026-09-30 00:00 |
03:17:50.30 |
+20:48:38.8 |
HIP 15198 |
28.12 |
| 2026-09-30 12:00 |
03:17:41.56 |
+20:48:17.7 |
HIP 15198 |
26.05 |
| 2026-10-01 00:00 |
03:17:32.54 |
+20:47:55.3 |
HIP 15198 |
23.91 |
| 2026-10-01 12:00 |
03:17:23.24 |
+20:47:31.7 |
HIP 15198 |
21.71 |
| 2026-10-02 00:00 |
03:17:13.67 |
+20:47:06.9 |
HIP 15198 |
19.44 |
| 2026-10-02 12:00 |
03:17:03.82 |
+20:46:40.9 |
HIP 15198 |
17.10 |
| 2026-10-03 00:00 |
03:16:53.70 |
+20:46:13.7 |
HIP 15198 |
14.70 |
| 2026-10-03 12:00 |
03:16:43.31 |
+20:45:45.3 |
HIP 15198 |
12.24 |
| 2026-10-04 00:00 |
03:16:32.65 |
+20:45:15.7 |
HIP 15198 |
9.72 |
| 2026-10-04 12:00 |
03:16:21.72 |
+20:44:44.8 |
HIP 15198 |
7.14 |
| 2026-10-05 00:00 |
03:16:10.53 |
+20:44:12.8 |
HIP 15198 |
4.53 |
| 2026-10-05 12:00 |
03:15:59.07 |
+20:43:39.5 |
HIP 15198 |
2.04 |
| 2026-10-06 00:00 |
03:15:47.35 |
+20:43:05.0 |
HIP 15198 |
1.69 |
| 2026-10-06 12:00 |
03:15:35.37 |
+20:42:29.4 |
HIP 15198 |
4.21 |
| 2026-10-07 00:00 |
03:15:23.14 |
+20:41:52.5 |
HIP 15198 |
7.06 |
| 2026-10-07 12:00 |
03:15:10.64 |
+20:41:14.4 |
HIP 15198 |
10.02 |
| 2026-10-08 00:00 |
03:14:57.90 |
+20:40:35.1 |
HIP 15198 |
13.05 |
| 2026-10-08 12:00 |
03:14:44.91 |
+20:39:54.6 |
HIP 15198 |
16.15 |
| 2026-10-09 00:00 |
03:14:31.67 |
+20:39:13.0 |
HIP 15100 |
19.09 |
| 2026-10-09 12:00 |
03:14:18.18 |
+20:38:30.1 |
HIP 14974 |
18.56 |
| 2026-10-10 00:00 |
03:14:04.46 |
+20:37:46.1 |
HIP 14974 |
15.78 |
| 2026-10-10 12:00 |
03:13:50.49 |
+20:37:00.9 |
HIP 14974 |
13.20 |
| 2026-10-11 00:00 |
03:13:36.29 |
+20:36:14.5 |
HIP 14974 |
11.00 |