메타데이터
| 항목 |
값 |
| Designation |
C/2005 EL173 (LONEOS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2007-03-05T21:31:08.184000Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:47Z |
| Obs used |
314 |
| NEO |
- |
| M1 |
7.700 |
| K1 |
9.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2006-07-01.0000000 |
| e |
1.00318367 |
| q (au) |
3.886323 |
| a (au) |
-1220.704650 |
| i (deg) |
130.676676 |
| Ω (om, deg) |
344.789896 |
| ω (w, deg) |
261.492565 |
| M (ma, deg) |
-0.005729 |
밝기
산란 + 전체 선형
$$
M_a = (5.147 + 4.894\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.147 |
| n |
4.894 |
| gf |
0.860 |
| gb |
-0.523 |
| k |
0.981 |
| δ90 |
1.001 |
| 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) |
| 2026-09-20 00:00 |
20:21:03.60 |
+13:43:02.1 |
HIP 100406 |
11.63 |
| 2026-09-20 12:00 |
20:21:01.54 |
+13:42:36.6 |
HIP 100406 |
11.72 |
| 2026-09-21 00:00 |
20:20:59.50 |
+13:42:11.1 |
HIP 100406 |
11.83 |
| 2026-09-21 12:00 |
20:20:57.49 |
+13:41:45.5 |
HIP 100406 |
11.98 |
| 2026-09-22 00:00 |
20:20:55.50 |
+13:41:19.8 |
HIP 100406 |
12.15 |
| 2026-09-22 12:00 |
20:20:53.53 |
+13:40:54.1 |
HIP 100406 |
12.35 |
| 2026-09-23 00:00 |
20:20:51.59 |
+13:40:28.4 |
HIP 100406 |
12.57 |
| 2026-09-23 12:00 |
20:20:49.67 |
+13:40:02.6 |
HIP 100406 |
12.82 |
| 2026-09-24 00:00 |
20:20:47.77 |
+13:39:36.8 |
HIP 100406 |
13.08 |
| 2026-09-24 12:00 |
20:20:45.90 |
+13:39:10.9 |
HIP 100256 |
12.77 |
| 2026-09-25 00:00 |
20:20:44.05 |
+13:38:45.0 |
HIP 100256 |
12.16 |
| 2026-09-25 12:00 |
20:20:42.23 |
+13:38:19.0 |
HIP 100256 |
11.57 |
| 2026-09-26 00:00 |
20:20:40.43 |
+13:37:53.0 |
HIP 100256 |
10.98 |
| 2026-09-26 12:00 |
20:20:38.66 |
+13:37:27.0 |
HIP 100256 |
10.40 |
| 2026-09-27 00:00 |
20:20:36.91 |
+13:37:00.9 |
HIP 100256 |
9.83 |
| 2026-09-27 12:00 |
20:20:35.19 |
+13:36:34.8 |
HIP 100256 |
9.27 |
| 2026-09-28 00:00 |
20:20:33.49 |
+13:36:08.7 |
HIP 100256 |
8.72 |
| 2026-09-28 12:00 |
20:20:31.81 |
+13:35:42.5 |
HIP 100256 |
8.19 |
| 2026-09-29 00:00 |
20:20:30.16 |
+13:35:16.3 |
HIP 100256 |
7.66 |
| 2026-09-29 12:00 |
20:20:28.54 |
+13:34:50.1 |
HIP 100256 |
7.16 |
| 2026-09-30 00:00 |
20:20:26.94 |
+13:34:23.9 |
HIP 100256 |
6.67 |
| 2026-09-30 12:00 |
20:20:25.37 |
+13:33:57.7 |
HIP 100256 |
6.21 |
| 2026-10-01 00:00 |
20:20:23.82 |
+13:33:31.4 |
HIP 100256 |
5.78 |
| 2026-10-01 12:00 |
20:20:22.29 |
+13:33:05.1 |
HIP 100256 |
5.38 |
| 2026-10-02 00:00 |
20:20:20.80 |
+13:32:38.9 |
HIP 100256 |
5.01 |
| 2026-10-02 12:00 |
20:20:19.33 |
+13:32:12.6 |
HIP 100256 |
4.70 |
| 2026-10-03 00:00 |
20:20:17.88 |
+13:31:46.2 |
HIP 100256 |
4.44 |
| 2026-10-03 12:00 |
20:20:16.46 |
+13:31:19.9 |
HIP 100256 |
4.25 |
| 2026-10-04 00:00 |
20:20:15.07 |
+13:30:53.6 |
HIP 100256 |
4.13 |
| 2026-10-04 12:00 |
20:20:13.70 |
+13:30:27.3 |
HIP 100256 |
4.09 |
| 2026-10-05 00:00 |
20:20:12.36 |
+13:30:00.9 |
HIP 100256 |
4.12 |
| 2026-10-05 12:00 |
20:20:11.04 |
+13:29:34.6 |
HIP 100256 |
4.23 |
| 2026-10-06 00:00 |
20:20:09.75 |
+13:29:08.3 |
HIP 100256 |
4.41 |
| 2026-10-06 12:00 |
20:20:08.49 |
+13:28:42.0 |
HIP 100256 |
4.65 |
| 2026-10-07 00:00 |
20:20:07.26 |
+13:28:15.7 |
HIP 100256 |
4.93 |
| 2026-10-07 12:00 |
20:20:06.05 |
+13:27:49.4 |
HIP 100256 |
5.26 |
| 2026-10-08 00:00 |
20:20:04.87 |
+13:27:23.1 |
HIP 100256 |
5.62 |
| 2026-10-08 12:00 |
20:20:03.71 |
+13:26:56.8 |
HIP 100256 |
6.00 |
| 2026-10-09 00:00 |
20:20:02.58 |
+13:26:30.6 |
HIP 100256 |
6.40 |
| 2026-10-09 12:00 |
20:20:01.48 |
+13:26:04.4 |
HIP 100256 |
6.82 |
| 2026-10-10 00:00 |
20:20:00.41 |
+13:25:38.1 |
HIP 100256 |
7.25 |
| 2026-10-10 12:00 |
20:19:59.36 |
+13:25:12.0 |
HIP 100256 |
7.69 |
| 2026-10-11 00:00 |
20:19:58.34 |
+13:24:45.8 |
HIP 100256 |
8.14 |