메타데이터
| 항목 |
값 |
| Designation |
C/2005 O1 (NEAT) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2005-05-17T08:50:22.372800Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:51Z |
| Obs used |
90 |
| NEO |
- |
| M1 |
7.100 |
| K1 |
17.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2005-08-12.0000000 |
| e |
0.92959218 |
| q (au) |
3.590926 |
| a (au) |
51.001801 |
| i (deg) |
155.981032 |
| Ω (om, deg) |
304.799007 |
| ω (w, deg) |
324.741971 |
| M (ma, deg) |
0.234424 |
밝기
산란 + 전체 선형
$$
M_a = (11.819 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.819 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.760 |
| k |
0.800 |
| δ90 |
9.998 |
| 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 |
12:57:47.64 |
+17:34:12.6 |
HIP 63283 |
12.69 |
| 2026-06-01 12:00 |
12:57:45.52 |
+17:34:07.4 |
HIP 63283 |
12.96 |
| 2026-06-02 00:00 |
12:57:43.43 |
+17:34:01.9 |
HIP 63283 |
13.24 |
| 2026-06-02 12:00 |
12:57:41.36 |
+17:33:56.2 |
HIP 63283 |
13.54 |
| 2026-06-03 00:00 |
12:57:39.32 |
+17:33:50.3 |
HIP 63283 |
13.85 |
| 2026-06-03 12:00 |
12:57:37.29 |
+17:33:44.1 |
HIP 63283 |
14.16 |
| 2026-06-04 00:00 |
12:57:35.29 |
+17:33:37.8 |
HIP 63283 |
14.49 |
| 2026-06-04 12:00 |
12:57:33.32 |
+17:33:31.2 |
HIP 63283 |
14.83 |
| 2026-06-05 00:00 |
12:57:31.37 |
+17:33:24.4 |
HIP 63283 |
15.18 |
| 2026-06-05 12:00 |
12:57:29.44 |
+17:33:17.4 |
HIP 63283 |
15.53 |
| 2026-06-06 00:00 |
12:57:27.54 |
+17:33:10.2 |
HIP 63283 |
15.89 |
| 2026-06-06 12:00 |
12:57:25.66 |
+17:33:02.8 |
HIP 63283 |
16.25 |
| 2026-06-07 00:00 |
12:57:23.80 |
+17:32:55.2 |
HIP 63283 |
16.62 |
| 2026-06-07 12:00 |
12:57:21.97 |
+17:32:47.4 |
HIP 63283 |
16.99 |
| 2026-06-08 00:00 |
12:57:20.17 |
+17:32:39.3 |
HIP 63283 |
17.37 |
| 2026-06-08 12:00 |
12:57:18.38 |
+17:32:31.1 |
HIP 63283 |
17.74 |
| 2026-06-09 00:00 |
12:57:16.63 |
+17:32:22.6 |
HIP 63283 |
18.12 |
| 2026-06-09 12:00 |
12:57:14.90 |
+17:32:14.0 |
HIP 63283 |
18.50 |
| 2026-06-10 00:00 |
12:57:13.19 |
+17:32:05.1 |
HIP 63283 |
18.88 |
| 2026-06-10 12:00 |
12:57:11.51 |
+17:31:56.0 |
HIP 63283 |
19.26 |
| 2026-06-11 00:00 |
12:57:09.85 |
+17:31:46.8 |
HIP 63283 |
19.65 |
| 2026-06-11 12:00 |
12:57:08.22 |
+17:31:37.3 |
HIP 63283 |
20.03 |
| 2026-06-12 00:00 |
12:57:06.61 |
+17:31:27.6 |
HIP 63283 |
20.41 |
| 2026-06-12 12:00 |
12:57:05.03 |
+17:31:17.7 |
HIP 63283 |
20.79 |
| 2026-06-13 00:00 |
12:57:03.48 |
+17:31:07.6 |
HIP 63283 |
21.17 |
| 2026-06-13 12:00 |
12:57:01.95 |
+17:30:57.4 |
HIP 63283 |
21.55 |
| 2026-06-14 00:00 |
12:57:00.44 |
+17:30:46.9 |
HIP 63283 |
21.93 |
| 2026-06-14 12:00 |
12:56:58.97 |
+17:30:36.2 |
HIP 63283 |
22.31 |
| 2026-06-15 00:00 |
12:56:57.51 |
+17:30:25.3 |
HIP 63283 |
22.68 |
| 2026-06-15 12:00 |
12:56:56.09 |
+17:30:14.2 |
HIP 63283 |
23.05 |
| 2026-06-16 00:00 |
12:56:54.69 |
+17:30:03.0 |
HIP 63283 |
23.43 |
| 2026-06-16 12:00 |
12:56:53.31 |
+17:29:51.5 |
HIP 63283 |
23.80 |
| 2026-06-17 00:00 |
12:56:51.97 |
+17:29:39.9 |
HIP 63283 |
24.16 |
| 2026-06-17 12:00 |
12:56:50.64 |
+17:29:28.0 |
HIP 63283 |
24.53 |
| 2026-06-18 00:00 |
12:56:49.35 |
+17:29:16.0 |
HIP 63283 |
24.89 |
| 2026-06-18 12:00 |
12:56:48.08 |
+17:29:03.8 |
HIP 63283 |
25.25 |
| 2026-06-19 00:00 |
12:56:46.83 |
+17:28:51.4 |
HIP 63283 |
25.61 |
| 2026-06-19 12:00 |
12:56:45.62 |
+17:28:38.8 |
HIP 63283 |
25.97 |
| 2026-06-20 00:00 |
12:56:44.43 |
+17:28:26.0 |
HIP 63283 |
26.32 |
| 2026-06-20 12:00 |
12:56:43.26 |
+17:28:13.0 |
HIP 63283 |
26.67 |
| 2026-06-21 00:00 |
12:56:42.13 |
+17:27:59.9 |
HIP 63283 |
27.02 |
| 2026-06-21 12:00 |
12:56:41.02 |
+17:27:46.6 |
HIP 63283 |
27.36 |
| 2026-06-22 00:00 |
12:56:39.93 |
+17:27:33.1 |
HIP 63283 |
27.71 |