메타데이터
| 항목 |
값 |
| Designation |
251P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2004-06-19T01:47:38.279040Z |
| Orbit solution date (soln_date, UTC) |
2024-10-05T23:12:40Z |
| Obs used |
431 |
| NEO |
- |
| M1 |
12.000 |
| K1 |
24.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2007-04-11.0000000 |
| e |
0.50982311 |
| q (au) |
1.711672 |
| a (au) |
3.491948 |
| i (deg) |
23.507154 |
| Ω (om, deg) |
219.552911 |
| ω (w, deg) |
30.906733 |
| M (ma, deg) |
154.959455 |
밝기
산란 + 전체 선형
$$
M_a = (15.255 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
15.255 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.719 |
| k |
0.978 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
03:20:42.75 |
+15:10:38.1 |
HIP 15536 |
22.20 |
| 2026-06-01 12:00 |
03:21:08.37 |
+15:11:30.3 |
HIP 15536 |
25.89 |
| 2026-06-02 00:00 |
03:21:33.95 |
+15:12:22.1 |
HIP 15536 |
30.42 |
| 2026-06-02 12:00 |
03:21:59.50 |
+15:13:13.3 |
HIP 15536 |
35.46 |
| 2026-06-03 00:00 |
03:22:25.01 |
+15:14:04.0 |
HIP 15805 |
31.28 |
| 2026-06-03 12:00 |
03:22:50.49 |
+15:14:54.3 |
HIP 15805 |
27.57 |
| 2026-06-04 00:00 |
03:23:15.93 |
+15:15:44.1 |
HIP 15805 |
24.87 |
| 2026-06-04 12:00 |
03:23:41.33 |
+15:16:33.3 |
HIP 15805 |
23.53 |
| 2026-06-05 00:00 |
03:24:06.69 |
+15:17:22.1 |
HIP 15894 |
21.04 |
| 2026-06-05 12:00 |
03:24:32.02 |
+15:18:10.4 |
HIP 15894 |
19.98 |
| 2026-06-06 00:00 |
03:24:57.30 |
+15:18:58.1 |
HIP 15894 |
20.76 |
| 2026-06-06 12:00 |
03:25:22.55 |
+15:19:45.4 |
HIP 15894 |
23.21 |
| 2026-06-07 00:00 |
03:25:47.75 |
+15:20:32.1 |
HIP 15894 |
26.84 |
| 2026-06-07 12:00 |
03:26:12.92 |
+15:21:18.4 |
HIP 15951 |
30.70 |
| 2026-06-08 00:00 |
03:26:38.04 |
+15:22:04.1 |
HIP 15951 |
32.87 |
| 2026-06-08 12:00 |
03:27:03.11 |
+15:22:49.3 |
HIP 16246 |
34.69 |
| 2026-06-09 00:00 |
03:27:28.15 |
+15:23:34.0 |
HIP 16246 |
29.13 |
| 2026-06-09 12:00 |
03:27:53.14 |
+15:24:18.2 |
HIP 16246 |
23.84 |
| 2026-06-10 00:00 |
03:28:18.09 |
+15:25:01.8 |
HIP 16246 |
19.01 |
| 2026-06-10 12:00 |
03:28:42.99 |
+15:25:45.0 |
HIP 16246 |
15.11 |
| 2026-06-11 00:00 |
03:29:07.84 |
+15:26:27.5 |
HIP 16246 |
12.97 |
| 2026-06-11 12:00 |
03:29:32.65 |
+15:27:09.6 |
HIP 16246 |
13.44 |
| 2026-06-12 00:00 |
03:29:57.40 |
+15:27:51.1 |
HIP 16246 |
16.28 |
| 2026-06-12 12:00 |
03:30:22.11 |
+15:28:32.1 |
HIP 16393 |
18.91 |
| 2026-06-13 00:00 |
03:30:46.77 |
+15:29:12.5 |
HIP 16393 |
15.68 |
| 2026-06-13 12:00 |
03:31:11.38 |
+15:29:52.4 |
HIP 16393 |
14.35 |
| 2026-06-14 00:00 |
03:31:35.94 |
+15:30:31.7 |
HIP 16393 |
15.39 |
| 2026-06-14 12:00 |
03:32:00.45 |
+15:31:10.5 |
HIP 16532 |
12.94 |
| 2026-06-15 00:00 |
03:32:24.90 |
+15:31:48.8 |
HIP 16532 |
7.02 |
| 2026-06-15 12:00 |
03:32:49.30 |
+15:32:26.4 |
HIP 16532 |
1.17 |
| 2026-06-16 00:00 |
03:33:13.65 |
+15:33:03.5 |
HIP 16568 |
1.72 |
| 2026-06-16 12:00 |
03:33:37.94 |
+15:33:40.1 |
HIP 16568 |
4.58 |
| 2026-06-17 00:00 |
03:34:02.17 |
+15:34:16.1 |
HIP 16627 |
3.56 |
| 2026-06-17 12:00 |
03:34:26.34 |
+15:34:51.5 |
HIP 16627 |
7.71 |
| 2026-06-18 00:00 |
03:34:50.46 |
+15:35:26.3 |
HIP 16627 |
13.20 |
| 2026-06-18 12:00 |
03:35:14.52 |
+15:36:00.6 |
HIP 16627 |
18.89 |
| 2026-06-19 00:00 |
03:35:38.52 |
+15:36:34.3 |
HIP 16865 |
23.90 |
| 2026-06-19 12:00 |
03:36:02.46 |
+15:37:07.5 |
HIP 16865 |
18.92 |
| 2026-06-20 00:00 |
03:36:26.34 |
+15:37:40.0 |
HIP 16865 |
14.56 |
| 2026-06-20 12:00 |
03:36:50.16 |
+15:38:12.0 |
HIP 16865 |
11.53 |
| 2026-06-21 00:00 |
03:37:13.91 |
+15:38:43.4 |
HIP 16865 |
10.97 |
| 2026-06-21 12:00 |
03:37:37.61 |
+15:39:14.2 |
HIP 16865 |
13.18 |
| 2026-06-22 00:00 |
03:38:01.24 |
+15:39:44.5 |
HIP 16924 |
14.27 |