메타데이터
| 항목 |
값 |
| Designation |
345P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-07-15T10:40:53.382720Z |
| Orbit solution date (soln_date, UTC) |
2024-10-19T00:12:17Z |
| Obs used |
190 |
| NEO |
- |
| M1 |
15.500 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-08-23.0000000 |
| e |
0.21947831 |
| q (au) |
3.158034 |
| a (au) |
4.046055 |
| i (deg) |
2.724989 |
| Ω (om, deg) |
154.521613 |
| ω (w, deg) |
196.465742 |
| M (ma, deg) |
4.669134 |
밝기
산란 + 전체 선형
$$
M_a = (15.190 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
15.190 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.780 |
| k |
0.800 |
| δ90 |
10.000 |
| 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) |
| 2026-06-01 00:00 |
05:58:49.10 |
+21:31:24.2 |
HIP 28374 |
12.71 |
| 2026-06-01 12:00 |
05:59:25.33 |
+21:31:32.3 |
HIP 28374 |
5.77 |
| 2026-06-02 00:00 |
06:00:01.57 |
+21:31:39.8 |
HIP 28374 |
6.87 |
| 2026-06-02 12:00 |
06:00:37.83 |
+21:31:46.7 |
HIP 28541 |
13.02 |
| 2026-06-03 00:00 |
06:01:14.11 |
+21:31:53.1 |
HIP 28541 |
5.77 |
| 2026-06-03 12:00 |
06:01:50.40 |
+21:31:58.8 |
HIP 28541 |
6.29 |
| 2026-06-04 00:00 |
06:02:26.72 |
+21:32:03.9 |
HIP 28541 |
13.73 |
| 2026-06-04 12:00 |
06:03:03.05 |
+21:32:08.5 |
HIP 28728 |
14.79 |
| 2026-06-05 00:00 |
06:03:39.40 |
+21:32:12.5 |
HIP 28728 |
6.64 |
| 2026-06-05 12:00 |
06:04:15.76 |
+21:32:15.8 |
HIP 28728 |
3.50 |
| 2026-06-06 00:00 |
06:04:52.14 |
+21:32:18.6 |
HIP 28785 |
9.16 |
| 2026-06-06 12:00 |
06:05:28.53 |
+21:32:20.8 |
HIP 28843 |
9.49 |
| 2026-06-07 00:00 |
06:06:04.94 |
+21:32:22.4 |
HIP 28843 |
14.38 |
| 2026-06-07 12:00 |
06:06:41.36 |
+21:32:23.4 |
HIP 28843 |
21.60 |
| 2026-06-08 00:00 |
06:07:17.79 |
+21:32:23.8 |
HIP 29077 |
17.97 |
| 2026-06-08 12:00 |
06:07:54.24 |
+21:32:23.6 |
HIP 29077 |
14.79 |
| 2026-06-09 00:00 |
06:08:30.70 |
+21:32:22.8 |
HIP 29077 |
16.06 |
| 2026-06-09 12:00 |
06:09:07.16 |
+21:32:21.4 |
HIP 29077 |
21.00 |
| 2026-06-10 00:00 |
06:09:43.64 |
+21:32:19.4 |
HIP 29360 |
22.01 |
| 2026-06-10 12:00 |
06:10:20.13 |
+21:32:16.8 |
HIP 29360 |
13.56 |
| 2026-06-11 00:00 |
06:10:56.62 |
+21:32:13.6 |
HIP 29360 |
5.24 |
| 2026-06-11 12:00 |
06:11:33.13 |
+21:32:09.8 |
HIP 29360 |
3.87 |
| 2026-06-12 00:00 |
06:12:09.64 |
+21:32:05.4 |
HIP 29360 |
12.11 |
| 2026-06-12 12:00 |
06:12:46.16 |
+21:32:00.4 |
HIP 29492 |
16.48 |
| 2026-06-13 00:00 |
06:13:22.68 |
+21:31:54.9 |
HIP 29492 |
17.70 |
| 2026-06-13 12:00 |
06:13:59.21 |
+21:31:48.7 |
HIP 29492 |
22.35 |
| 2026-06-14 00:00 |
06:14:35.75 |
+21:31:41.9 |
HIP 29492 |
28.81 |
| 2026-06-14 12:00 |
06:15:12.29 |
+21:31:34.5 |
HIP 29744 |
27.15 |
| 2026-06-15 00:00 |
06:15:48.83 |
+21:31:26.5 |
HIP 29744 |
25.33 |
| 2026-06-15 12:00 |
06:16:25.37 |
+21:31:18.0 |
HIP 29744 |
26.28 |
| 2026-06-16 00:00 |
06:17:01.92 |
+21:31:08.8 |
HIP 29744 |
29.73 |
| 2026-06-16 12:00 |
06:17:38.46 |
+21:30:59.0 |
HIP 29981 |
24.72 |
| 2026-06-17 00:00 |
06:18:15.00 |
+21:30:48.6 |
HIP 29981 |
20.80 |
| 2026-06-17 12:00 |
06:18:51.55 |
+21:30:37.7 |
HIP 29981 |
19.97 |
| 2026-06-18 00:00 |
06:19:28.09 |
+21:30:26.1 |
HIP 29981 |
22.57 |
| 2026-06-18 12:00 |
06:20:04.63 |
+21:30:14.0 |
HIP 30211 |
25.67 |
| 2026-06-19 00:00 |
06:20:41.16 |
+21:30:01.2 |
HIP 30211 |
20.40 |
| 2026-06-19 12:00 |
06:21:17.69 |
+21:29:47.9 |
HIP 30241 |
16.44 |
| 2026-06-20 00:00 |
06:21:54.22 |
+21:29:34.0 |
HIP 30241 |
15.29 |
| 2026-06-20 12:00 |
06:22:30.74 |
+21:29:19.5 |
HIP 30241 |
18.49 |
| 2026-06-21 00:00 |
06:23:07.25 |
+21:29:04.4 |
HIP 30241 |
24.37 |
| 2026-06-21 12:00 |
06:23:43.76 |
+21:28:48.7 |
HIP 30588 |
29.38 |
| 2026-06-22 00:00 |
06:24:20.26 |
+21:28:32.4 |
HIP 30588 |
21.70 |