메타데이터
| 항목 |
값 |
| Designation |
C/2006 A1 (Pojmanski) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2006-02-22T04:21:22.887360Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:56Z |
| Obs used |
600 |
| NEO |
- |
| M1 |
10.500 |
| K1 |
16.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2006-03-24.0000000 |
| e |
0.99976626 |
| q (au) |
0.555396 |
| a (au) |
2376.082997 |
| i (deg) |
92.736122 |
| Ω (om, deg) |
211.343233 |
| ω (w, deg) |
351.187789 |
| M (ma, deg) |
0.000254 |
밝기
산란 + 전체 선형
$$
M_a = (9.583 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.583 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2006-01-04 |
2006-01-23 |
+11.6706 |
+1.828 |
| 2006-01-23 |
2006-02-21 |
-6.7238 |
-1.282 |
| 2006-02-22 |
2006-04-26 |
-8.0722 |
-1.039 |
| 2006-04-26 |
2006-12-12 |
-5.5681 |
-0.447 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
01:23:58.29 |
+32:13:58.8 |
HIP 6453 |
26.92 |
| 2026-03-26 12:00 |
01:24:01.29 |
+32:14:06.4 |
HIP 6453 |
27.34 |
| 2026-03-27 00:00 |
01:24:04.30 |
+32:14:14.1 |
HIP 6453 |
27.77 |
| 2026-03-27 12:00 |
01:24:07.31 |
+32:14:21.9 |
HIP 6453 |
28.22 |
| 2026-03-28 00:00 |
01:24:10.33 |
+32:14:30.0 |
HIP 6453 |
28.68 |
| 2026-03-28 12:00 |
01:24:13.35 |
+32:14:38.2 |
HIP 6453 |
29.15 |
| 2026-03-29 00:00 |
01:24:16.38 |
+32:14:46.6 |
HIP 6453 |
29.63 |
| 2026-03-29 12:00 |
01:24:19.42 |
+32:14:55.1 |
HIP 6453 |
30.11 |
| 2026-03-30 00:00 |
01:24:22.46 |
+32:15:03.8 |
HIP 6453 |
30.61 |
| 2026-03-30 12:00 |
01:24:25.51 |
+32:15:12.7 |
HIP 6453 |
31.12 |
| 2026-03-31 00:00 |
01:24:28.56 |
+32:15:21.7 |
HIP 6453 |
31.63 |
| 2026-03-31 12:00 |
01:24:31.62 |
+32:15:30.9 |
HIP 6453 |
32.15 |
| 2026-04-01 00:00 |
01:24:34.69 |
+32:15:40.2 |
HIP 6453 |
32.69 |
| 2026-04-01 12:00 |
01:24:37.76 |
+32:15:49.8 |
HIP 6453 |
33.22 |
| 2026-04-02 00:00 |
01:24:40.83 |
+32:15:59.4 |
HIP 6453 |
33.77 |
| 2026-04-02 12:00 |
01:24:43.91 |
+32:16:09.3 |
HIP 6453 |
34.32 |
| 2026-04-03 00:00 |
01:24:46.99 |
+32:16:19.2 |
HIP 6453 |
34.88 |
| 2026-04-03 12:00 |
01:24:50.08 |
+32:16:29.4 |
HIP 6453 |
35.45 |
| 2026-04-04 00:00 |
01:24:53.17 |
+32:16:39.7 |
HIP 6453 |
36.02 |
| 2026-04-04 12:00 |
01:24:56.27 |
+32:16:50.1 |
HIP 6453 |
36.60 |
| 2026-04-05 00:00 |
01:24:59.37 |
+32:17:00.8 |
HIP 6453 |
37.18 |
| 2026-04-05 12:00 |
01:25:02.47 |
+32:17:11.5 |
HIP 6453 |
37.77 |
| 2026-04-06 00:00 |
01:25:05.58 |
+32:17:22.4 |
HIP 6453 |
38.37 |
| 2026-04-06 12:00 |
01:25:08.68 |
+32:17:33.5 |
HIP 6819 |
38.03 |
| 2026-04-07 00:00 |
01:25:11.79 |
+32:17:44.7 |
HIP 6819 |
37.56 |
| 2026-04-07 12:00 |
01:25:14.91 |
+32:17:56.1 |
HIP 6819 |
37.10 |
| 2026-04-08 00:00 |
01:25:18.02 |
+32:18:07.6 |
HIP 6819 |
36.65 |
| 2026-04-08 12:00 |
01:25:21.14 |
+32:18:19.3 |
HIP 6819 |
36.21 |
| 2026-04-09 00:00 |
01:25:24.26 |
+32:18:31.1 |
HIP 6819 |
35.78 |
| 2026-04-09 12:00 |
01:25:27.39 |
+32:18:43.0 |
HIP 6819 |
35.35 |
| 2026-04-10 00:00 |
01:25:30.51 |
+32:18:55.2 |
HIP 6819 |
34.94 |
| 2026-04-10 12:00 |
01:25:33.63 |
+32:19:07.4 |
HIP 6819 |
34.54 |
| 2026-04-11 00:00 |
01:25:36.76 |
+32:19:19.8 |
HIP 6819 |
34.14 |
| 2026-04-11 12:00 |
01:25:39.89 |
+32:19:32.3 |
HIP 6819 |
33.76 |
| 2026-04-12 00:00 |
01:25:43.01 |
+32:19:45.0 |
HIP 6819 |
33.39 |
| 2026-04-12 12:00 |
01:25:46.14 |
+32:19:57.8 |
HIP 6819 |
33.03 |
| 2026-04-13 00:00 |
01:25:49.27 |
+32:20:10.8 |
HIP 6819 |
32.69 |
| 2026-04-13 12:00 |
01:25:52.40 |
+32:20:23.9 |
HIP 6819 |
32.35 |
| 2026-04-14 00:00 |
01:25:55.53 |
+32:20:37.1 |
HIP 6819 |
32.03 |
| 2026-04-14 12:00 |
01:25:58.66 |
+32:20:50.5 |
HIP 6819 |
31.73 |
| 2026-04-15 00:00 |
01:26:01.78 |
+32:21:04.0 |
HIP 6819 |
31.44 |
| 2026-04-15 12:00 |
01:26:04.91 |
+32:21:17.6 |
HIP 6819 |
31.16 |
| 2026-04-16 00:00 |
01:26:08.04 |
+32:21:31.4 |
HIP 6819 |
30.90 |