메타데이터
| 항목 |
값 |
| Designation |
C/2013 V5 (Oukaimeden) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2014-09-28T05:21:10.025280Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:42Z |
| Obs used |
1519 |
| NEO |
- |
| M1 |
10.800 |
| K1 |
7.250 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2014-05-07.0000000 |
| e |
0.99872022 |
| q (au) |
0.625586 |
| a (au) |
488.821430 |
| i (deg) |
154.885490 |
| Ω (om, deg) |
278.616285 |
| ω (w, deg) |
314.568126 |
| M (ma, deg) |
359.986847 |
밝기
산란 + 전체 선형
$$
M_a = (11.416 + 3.189\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.416 |
| n |
3.189 |
| gf |
1.000 |
| gb |
-0.569 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2013-11-12 |
2014-08-23 |
+2.6983 |
-1.565 |
| 2014-08-23 |
2014-09-28 |
-5.6126 |
-1.006 |
| 2014-09-28 |
2014-10-14 |
+11.8900 |
+2.906 |
| 2014-10-14 |
2015-02-17 |
+5.1684 |
+0.565 |
| 2015-02-17 |
2015-04-19 |
+0.6936 |
+3.285 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
11:17:30.33 |
+27:47:30.9 |
HIP 55206 |
14.12 |
| 2026-09-20 12:00 |
11:17:34.25 |
+27:47:14.3 |
HIP 55206 |
13.71 |
| 2026-09-21 00:00 |
11:17:38.17 |
+27:46:57.8 |
HIP 55206 |
13.35 |
| 2026-09-21 12:00 |
11:17:42.08 |
+27:46:41.6 |
HIP 55206 |
13.04 |
| 2026-09-22 00:00 |
11:17:45.99 |
+27:46:25.7 |
HIP 55206 |
12.79 |
| 2026-09-22 12:00 |
11:17:49.89 |
+27:46:09.9 |
HIP 55206 |
12.59 |
| 2026-09-23 00:00 |
11:17:53.78 |
+27:45:54.4 |
HIP 55206 |
12.45 |
| 2026-09-23 12:00 |
11:17:57.67 |
+27:45:39.1 |
HIP 55206 |
12.38 |
| 2026-09-24 00:00 |
11:18:01.55 |
+27:45:24.1 |
HIP 55206 |
12.36 |
| 2026-09-24 12:00 |
11:18:05.42 |
+27:45:09.2 |
HIP 55206 |
12.41 |
| 2026-09-25 00:00 |
11:18:09.28 |
+27:44:54.6 |
HIP 55206 |
12.51 |
| 2026-09-25 12:00 |
11:18:13.14 |
+27:44:40.2 |
HIP 55206 |
12.68 |
| 2026-09-26 00:00 |
11:18:16.98 |
+27:44:26.1 |
HIP 55206 |
12.90 |
| 2026-09-26 12:00 |
11:18:20.82 |
+27:44:12.2 |
HIP 55206 |
13.17 |
| 2026-09-27 00:00 |
11:18:24.65 |
+27:43:58.5 |
HIP 55206 |
13.48 |
| 2026-09-27 12:00 |
11:18:28.47 |
+27:43:45.1 |
HIP 55206 |
13.84 |
| 2026-09-28 00:00 |
11:18:32.28 |
+27:43:31.9 |
HIP 55206 |
14.25 |
| 2026-09-28 12:00 |
11:18:36.08 |
+27:43:18.9 |
HIP 55206 |
14.68 |
| 2026-09-29 00:00 |
11:18:39.87 |
+27:43:06.2 |
HIP 55206 |
15.16 |
| 2026-09-29 12:00 |
11:18:43.66 |
+27:42:53.7 |
HIP 55206 |
15.65 |
| 2026-09-30 00:00 |
11:18:47.43 |
+27:42:41.4 |
HIP 55206 |
16.18 |
| 2026-09-30 12:00 |
11:18:51.19 |
+27:42:29.4 |
HIP 55206 |
16.73 |
| 2026-10-01 00:00 |
11:18:54.94 |
+27:42:17.6 |
HIP 55206 |
17.30 |
| 2026-10-01 12:00 |
11:18:58.68 |
+27:42:06.1 |
HIP 55206 |
17.88 |
| 2026-10-02 00:00 |
11:19:02.40 |
+27:41:54.8 |
HIP 55206 |
18.49 |
| 2026-10-02 12:00 |
11:19:06.12 |
+27:41:43.8 |
HIP 55206 |
19.10 |
| 2026-10-03 00:00 |
11:19:09.82 |
+27:41:33.0 |
HIP 55206 |
19.73 |
| 2026-10-03 12:00 |
11:19:13.52 |
+27:41:22.5 |
HIP 55206 |
20.37 |
| 2026-10-04 00:00 |
11:19:17.20 |
+27:41:12.2 |
HIP 55206 |
21.02 |
| 2026-10-04 12:00 |
11:19:20.86 |
+27:41:02.2 |
HIP 55206 |
21.67 |
| 2026-10-05 00:00 |
11:19:24.52 |
+27:40:52.4 |
HIP 55206 |
22.33 |
| 2026-10-05 12:00 |
11:19:28.16 |
+27:40:42.8 |
HIP 55206 |
23.00 |
| 2026-10-06 00:00 |
11:19:31.79 |
+27:40:33.6 |
HIP 55206 |
23.67 |
| 2026-10-06 12:00 |
11:19:35.40 |
+27:40:24.5 |
HIP 55440 |
23.95 |
| 2026-10-07 00:00 |
11:19:39.00 |
+27:40:15.8 |
HIP 55440 |
23.17 |
| 2026-10-07 12:00 |
11:19:42.59 |
+27:40:07.3 |
HIP 55440 |
22.41 |
| 2026-10-08 00:00 |
11:19:46.16 |
+27:39:59.0 |
HIP 55440 |
21.65 |
| 2026-10-08 12:00 |
11:19:49.71 |
+27:39:51.0 |
HIP 55440 |
20.90 |
| 2026-10-09 00:00 |
11:19:53.25 |
+27:39:43.3 |
HIP 55440 |
20.15 |
| 2026-10-09 12:00 |
11:19:56.78 |
+27:39:35.9 |
HIP 55440 |
19.42 |
| 2026-10-10 00:00 |
11:20:00.29 |
+27:39:28.6 |
HIP 55440 |
18.70 |
| 2026-10-10 12:00 |
11:20:03.78 |
+27:39:21.7 |
HIP 55440 |
17.99 |
| 2026-10-11 00:00 |
11:20:07.26 |
+27:39:15.0 |
HIP 55440 |
17.29 |