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) |
| 2026-03-26 00:00 |
04:46:14.45 |
+19:58:06.1 |
HIP 22211 |
28.89 |
| 2026-03-26 12:00 |
04:46:40.61 |
+19:59:10.7 |
HIP 22211 |
29.54 |
| 2026-03-27 00:00 |
04:47:06.92 |
+20:00:15.3 |
HIP 22357 |
28.71 |
| 2026-03-27 12:00 |
04:47:33.36 |
+20:01:19.6 |
HIP 22357 |
24.71 |
| 2026-03-28 00:00 |
04:47:59.94 |
+20:02:23.9 |
HIP 22357 |
21.82 |
| 2026-03-28 12:00 |
04:48:26.66 |
+20:03:28.0 |
HIP 22356 |
18.62 |
| 2026-03-29 00:00 |
04:48:53.51 |
+20:04:31.9 |
HIP 22356 |
17.16 |
| 2026-03-29 12:00 |
04:49:20.50 |
+20:05:35.6 |
HIP 22486 |
16.42 |
| 2026-03-30 00:00 |
04:49:47.62 |
+20:06:39.2 |
HIP 22486 |
12.99 |
| 2026-03-30 12:00 |
04:50:14.87 |
+20:07:42.7 |
HIP 22486 |
12.30 |
| 2026-03-31 00:00 |
04:50:42.25 |
+20:08:45.9 |
HIP 22486 |
14.78 |
| 2026-03-31 12:00 |
04:51:09.76 |
+20:09:49.0 |
HIP 22486 |
19.27 |
| 2026-04-01 00:00 |
04:51:37.40 |
+20:10:51.9 |
HIP 22672 |
14.32 |
| 2026-04-01 12:00 |
04:52:05.16 |
+20:11:54.6 |
HIP 22672 |
9.02 |
| 2026-04-02 00:00 |
04:52:33.05 |
+20:12:57.0 |
HIP 22672 |
6.68 |
| 2026-04-02 12:00 |
04:53:01.07 |
+20:13:59.3 |
HIP 22672 |
9.81 |
| 2026-04-03 00:00 |
04:53:29.21 |
+20:15:01.4 |
HIP 22672 |
15.39 |
| 2026-04-03 12:00 |
04:53:57.47 |
+20:16:03.2 |
HIP 22872 |
17.54 |
| 2026-04-04 00:00 |
04:54:25.85 |
+20:17:04.8 |
HIP 22872 |
10.81 |
| 2026-04-04 12:00 |
04:54:54.36 |
+20:18:06.2 |
HIP 22872 |
4.05 |
| 2026-04-05 00:00 |
04:55:22.98 |
+20:19:07.4 |
HIP 22872 |
2.74 |
| 2026-04-05 12:00 |
04:55:51.73 |
+20:20:08.3 |
HIP 22872 |
9.56 |
| 2026-04-06 00:00 |
04:56:20.59 |
+20:21:09.0 |
HIP 22872 |
16.40 |
| 2026-04-06 12:00 |
04:56:49.56 |
+20:22:09.4 |
HIP 23082 |
17.66 |
| 2026-04-07 00:00 |
04:57:18.66 |
+20:23:09.6 |
HIP 23082 |
11.38 |
| 2026-04-07 12:00 |
04:57:47.86 |
+20:24:09.5 |
HIP 23082 |
6.48 |
| 2026-04-08 00:00 |
04:58:17.19 |
+20:25:09.2 |
HIP 23082 |
7.09 |
| 2026-04-08 12:00 |
04:58:46.62 |
+20:26:08.5 |
HIP 23082 |
12.47 |
| 2026-04-09 00:00 |
04:59:16.17 |
+20:27:07.6 |
HIP 23191 |
15.64 |
| 2026-04-09 12:00 |
04:59:45.82 |
+20:28:06.5 |
HIP 23191 |
17.13 |
| 2026-04-10 00:00 |
05:00:15.59 |
+20:29:05.0 |
HIP 23191 |
21.00 |
| 2026-04-10 12:00 |
05:00:45.47 |
+20:30:03.3 |
HIP 23396 |
24.07 |
| 2026-04-11 00:00 |
05:01:15.45 |
+20:31:01.2 |
HIP 23396 |
19.96 |
| 2026-04-11 12:00 |
05:01:45.54 |
+20:31:58.9 |
HIP 23396 |
17.83 |
| 2026-04-12 00:00 |
05:02:15.74 |
+20:32:56.2 |
HIP 23396 |
18.40 |
| 2026-04-12 12:00 |
05:02:46.05 |
+20:33:53.2 |
HIP 23396 |
21.50 |
| 2026-04-13 00:00 |
05:03:16.45 |
+20:34:49.9 |
HIP 23396 |
26.25 |
| 2026-04-13 12:00 |
05:03:46.97 |
+20:35:46.3 |
HIP 23396 |
31.94 |
| 2026-04-14 00:00 |
05:04:17.58 |
+20:36:42.4 |
HIP 23587 |
34.35 |
| 2026-04-14 12:00 |
05:04:48.30 |
+20:37:38.1 |
HIP 23587 |
35.93 |
| 2026-04-15 00:00 |
05:05:19.11 |
+20:38:33.5 |
HIP 23871 |
37.46 |
| 2026-04-15 12:00 |
05:05:50.03 |
+20:39:28.6 |
HIP 23871 |
31.22 |
| 2026-04-16 00:00 |
05:06:21.04 |
+20:40:23.3 |
HIP 23871 |
25.53 |