메타데이터
| 항목 |
값 |
| Designation |
C/2006 V1 (Catalina) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2007-11-26T12:34:51.493440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:01Z |
| Obs used |
684 |
| NEO |
- |
| M1 |
9.300 |
| K1 |
9.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2007-04-27.0000000 |
| e |
0.98961648 |
| q (au) |
2.674903 |
| a (au) |
257.610414 |
| i (deg) |
31.119474 |
| Ω (om, deg) |
335.724230 |
| ω (w, deg) |
253.403550 |
| M (ma, deg) |
359.949101 |
밝기
산란 + 전체 선형
$$
M_a = (9.399 + 2.907\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.399 |
| n |
2.907 |
| gf |
1.000 |
| gb |
-0.949 |
| 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) |
| 2026-03-26 00:00 |
00:17:27.44 |
+24:07:55.1 |
HIP 1239 |
27.84 |
| 2026-03-26 12:00 |
00:17:30.85 |
+24:08:15.3 |
HIP 1239 |
28.65 |
| 2026-03-27 00:00 |
00:17:34.27 |
+24:08:35.7 |
HIP 1239 |
29.47 |
| 2026-03-27 12:00 |
00:17:37.68 |
+24:08:56.2 |
HIP 1578 |
30.29 |
| 2026-03-28 00:00 |
00:17:41.09 |
+24:09:16.8 |
HIP 1578 |
29.64 |
| 2026-03-28 12:00 |
00:17:44.50 |
+24:09:37.6 |
HIP 1578 |
28.99 |
| 2026-03-29 00:00 |
00:17:47.91 |
+24:09:58.5 |
HIP 1578 |
28.36 |
| 2026-03-29 12:00 |
00:17:51.32 |
+24:10:19.6 |
HIP 1578 |
27.74 |
| 2026-03-30 00:00 |
00:17:54.72 |
+24:10:40.8 |
HIP 1578 |
27.13 |
| 2026-03-30 12:00 |
00:17:58.12 |
+24:11:02.2 |
HIP 1578 |
26.54 |
| 2026-03-31 00:00 |
00:18:01.52 |
+24:11:23.6 |
HIP 1578 |
25.97 |
| 2026-03-31 12:00 |
00:18:04.92 |
+24:11:45.3 |
HIP 1578 |
25.41 |
| 2026-04-01 00:00 |
00:18:08.31 |
+24:12:07.0 |
HIP 1578 |
24.87 |
| 2026-04-01 12:00 |
00:18:11.70 |
+24:12:28.9 |
HIP 1578 |
24.35 |
| 2026-04-02 00:00 |
00:18:15.09 |
+24:12:50.9 |
HIP 1578 |
23.85 |
| 2026-04-02 12:00 |
00:18:18.48 |
+24:13:13.1 |
HIP 1578 |
23.38 |
| 2026-04-03 00:00 |
00:18:21.86 |
+24:13:35.4 |
HIP 1578 |
22.93 |
| 2026-04-03 12:00 |
00:18:25.24 |
+24:13:57.8 |
HIP 1578 |
22.50 |
| 2026-04-04 00:00 |
00:18:28.61 |
+24:14:20.3 |
HIP 1578 |
22.10 |
| 2026-04-04 12:00 |
00:18:31.98 |
+24:14:43.0 |
HIP 1578 |
21.73 |
| 2026-04-05 00:00 |
00:18:35.34 |
+24:15:05.8 |
HIP 1578 |
21.39 |
| 2026-04-05 12:00 |
00:18:38.70 |
+24:15:28.7 |
HIP 1578 |
21.08 |
| 2026-04-06 00:00 |
00:18:42.06 |
+24:15:51.7 |
HIP 1578 |
20.81 |
| 2026-04-06 12:00 |
00:18:45.40 |
+24:16:14.8 |
HIP 1578 |
20.57 |
| 2026-04-07 00:00 |
00:18:48.75 |
+24:16:38.1 |
HIP 1578 |
20.36 |
| 2026-04-07 12:00 |
00:18:52.09 |
+24:17:01.5 |
HIP 1578 |
20.19 |
| 2026-04-08 00:00 |
00:18:55.42 |
+24:17:25.0 |
HIP 1578 |
20.06 |
| 2026-04-08 12:00 |
00:18:58.75 |
+24:17:48.6 |
HIP 1578 |
19.97 |
| 2026-04-09 00:00 |
00:19:02.07 |
+24:18:12.3 |
HIP 1578 |
19.91 |
| 2026-04-09 12:00 |
00:19:05.38 |
+24:18:36.2 |
HIP 1578 |
19.90 |
| 2026-04-10 00:00 |
00:19:08.69 |
+24:19:00.1 |
HIP 1578 |
19.92 |
| 2026-04-10 12:00 |
00:19:11.99 |
+24:19:24.2 |
HIP 1578 |
19.98 |
| 2026-04-11 00:00 |
00:19:15.29 |
+24:19:48.3 |
HIP 1578 |
20.08 |
| 2026-04-11 12:00 |
00:19:18.57 |
+24:20:12.6 |
HIP 1578 |
20.22 |
| 2026-04-12 00:00 |
00:19:21.85 |
+24:20:37.0 |
HIP 1578 |
20.39 |
| 2026-04-12 12:00 |
00:19:25.13 |
+24:21:01.5 |
HIP 1578 |
20.61 |
| 2026-04-13 00:00 |
00:19:28.39 |
+24:21:26.0 |
HIP 1578 |
20.85 |
| 2026-04-13 12:00 |
00:19:31.65 |
+24:21:50.7 |
HIP 1619 |
20.56 |
| 2026-04-14 00:00 |
00:19:34.89 |
+24:22:15.5 |
HIP 1619 |
19.85 |
| 2026-04-14 12:00 |
00:19:38.13 |
+24:22:40.4 |
HIP 1619 |
19.16 |
| 2026-04-15 00:00 |
00:19:41.37 |
+24:23:05.4 |
HIP 1619 |
18.47 |
| 2026-04-15 12:00 |
00:19:44.59 |
+24:23:30.4 |
HIP 1619 |
17.80 |
| 2026-04-16 00:00 |
00:19:47.80 |
+24:23:55.6 |
HIP 1619 |
17.14 |