메타데이터
| 항목 |
값 |
| Designation |
219P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2017-02-21T05:39:11.623680Z |
| Orbit solution date (soln_date, UTC) |
2025-02-13T09:13:06Z |
| Obs used |
1145 |
| NEO |
- |
| M1 |
5.900 |
| K1 |
24.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2014-06-19.0000000 |
| e |
0.35196615 |
| q (au) |
2.365480 |
| a (au) |
3.650242 |
| i (deg) |
11.528879 |
| Ω (om, deg) |
231.031617 |
| ω (w, deg) |
107.482590 |
| M (ma, deg) |
221.750045 |
밝기
산란 + 전체 선형
$$
M_a = (9.086 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.086 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| k |
1.000 |
| 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) |
| 2026-07-29 00:00 |
08:36:35.24 |
+09:02:57.8 |
HIP 42159 |
30.30 |
| 2026-07-29 12:00 |
08:37:03.23 |
+09:01:06.0 |
HIP 42159 |
35.50 |
| 2026-07-30 00:00 |
08:37:31.20 |
+08:59:13.7 |
HIP 42353 |
36.23 |
| 2026-07-30 12:00 |
08:37:59.15 |
+08:57:20.9 |
HIP 42353 |
37.16 |
| 2026-07-31 00:00 |
08:38:27.09 |
+08:55:27.6 |
HIP 42353 |
39.39 |
| 2026-07-31 12:00 |
08:38:55.02 |
+08:53:33.7 |
HIP 42353 |
42.72 |
| 2026-08-01 00:00 |
08:39:22.93 |
+08:51:39.4 |
HIP 42353 |
46.92 |
| 2026-08-01 12:00 |
08:39:50.82 |
+08:49:44.5 |
HIP 42669 |
44.97 |
| 2026-08-02 00:00 |
08:40:18.69 |
+08:47:49.1 |
HIP 42669 |
39.28 |
| 2026-08-02 12:00 |
08:40:46.55 |
+08:45:53.3 |
HIP 42669 |
34.14 |
| 2026-08-03 00:00 |
08:41:14.38 |
+08:43:56.9 |
HIP 42669 |
29.83 |
| 2026-08-03 12:00 |
08:41:42.20 |
+08:42:00.0 |
HIP 42807 |
25.62 |
| 2026-08-04 00:00 |
08:42:10.00 |
+08:40:02.7 |
HIP 42807 |
18.53 |
| 2026-08-04 12:00 |
08:42:37.78 |
+08:38:04.8 |
HIP 42807 |
11.52 |
| 2026-08-05 00:00 |
08:43:05.54 |
+08:36:06.4 |
HIP 42807 |
4.87 |
| 2026-08-05 12:00 |
08:43:33.28 |
+08:34:07.6 |
HIP 42807 |
4.09 |
| 2026-08-06 00:00 |
08:44:01.00 |
+08:32:08.3 |
HIP 42807 |
10.56 |
| 2026-08-06 12:00 |
08:44:28.69 |
+08:30:08.5 |
HIP 42807 |
17.55 |
| 2026-08-07 00:00 |
08:44:56.36 |
+08:28:08.2 |
HIP 43084 |
23.74 |
| 2026-08-07 12:00 |
08:45:24.01 |
+08:26:07.4 |
HIP 43084 |
17.09 |
| 2026-08-08 00:00 |
08:45:51.64 |
+08:24:06.2 |
HIP 43084 |
11.06 |
| 2026-08-08 12:00 |
08:46:19.24 |
+08:22:04.5 |
HIP 43084 |
7.36 |
| 2026-08-09 00:00 |
08:46:46.82 |
+08:20:02.3 |
HIP 43084 |
9.35 |
| 2026-08-09 12:00 |
08:47:14.37 |
+08:17:59.6 |
HIP 43084 |
14.90 |
| 2026-08-10 00:00 |
08:47:41.89 |
+08:15:56.5 |
HIP 43084 |
21.40 |
| 2026-08-10 12:00 |
08:48:09.39 |
+08:13:52.9 |
HIP 43369 |
27.95 |
| 2026-08-11 00:00 |
08:48:36.86 |
+08:11:48.9 |
HIP 43369 |
21.54 |
| 2026-08-11 12:00 |
08:49:04.30 |
+08:09:44.4 |
HIP 43369 |
15.74 |
| 2026-08-12 00:00 |
08:49:31.71 |
+08:07:39.5 |
HIP 43369 |
11.53 |
| 2026-08-12 12:00 |
08:49:59.09 |
+08:05:34.2 |
HIP 43369 |
10.90 |
| 2026-08-13 00:00 |
08:50:26.44 |
+08:03:28.3 |
HIP 43422 |
12.25 |
| 2026-08-13 12:00 |
08:50:53.76 |
+08:01:22.1 |
HIP 43422 |
9.91 |
| 2026-08-14 00:00 |
08:51:21.05 |
+07:59:15.4 |
HIP 43422 |
12.10 |
| 2026-08-14 12:00 |
08:51:48.30 |
+07:57:08.3 |
HIP 43557 |
9.62 |
| 2026-08-15 00:00 |
08:52:15.53 |
+07:55:00.8 |
HIP 43557 |
8.80 |
| 2026-08-15 12:00 |
08:52:42.72 |
+07:52:52.9 |
HIP 43637 |
10.34 |
| 2026-08-16 00:00 |
08:53:09.87 |
+07:50:44.5 |
HIP 43637 |
4.37 |
| 2026-08-16 12:00 |
08:53:36.99 |
+07:48:35.7 |
HIP 43637 |
5.54 |
| 2026-08-17 00:00 |
08:54:04.07 |
+07:46:26.6 |
HIP 43637 |
11.90 |
| 2026-08-17 12:00 |
08:54:31.12 |
+07:44:17.0 |
HIP 43637 |
18.75 |
| 2026-08-18 00:00 |
08:54:58.12 |
+07:42:07.0 |
HIP 43637 |
25.69 |
| 2026-08-18 12:00 |
08:55:25.10 |
+07:39:56.6 |
HIP 43637 |
32.67 |
| 2026-08-19 00:00 |
08:55:52.03 |
+07:37:45.8 |
HIP 43832 |
38.38 |