메타데이터
| 항목 |
값 |
| Designation |
C/2004 B1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2006-02-07T21:19:48.656640Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:36Z |
| Obs used |
1832 |
| NEO |
- |
| M1 |
12.300 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2006-04-08.0000000 |
| e |
1.00130658 |
| q (au) |
1.601945 |
| a (au) |
-1226.056929 |
| i (deg) |
114.096847 |
| Ω (om, deg) |
272.801879 |
| ω (w, deg) |
327.900869 |
| M (ma, deg) |
0.001357 |
밝기
산란 + 전체 선형
$$
M_a = (12.202 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.202 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.888 |
| k |
0.984 |
| δ90 |
9.997 |
| 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 |
| 2004-01-28 |
2004-09-29 |
+13.6677 |
-11.312 |
| 2004-09-29 |
2005-01-16 |
-0.8818 |
-0.030 |
| 2005-01-16 |
2005-10-02 |
+2.3681 |
-2.742 |
| 2005-10-02 |
2005-12-24 |
-13.2191 |
+2.440 |
| 2006-03-13 |
2006-06-07 |
+23.6892 |
-8.038 |
| 2006-06-07 |
2006-08-02 |
-7.5231 |
+3.109 |
| 2006-08-02 |
2006-09-09 |
-16.0328 |
+7.184 |
| 2006-09-09 |
2008-08-24 |
+2.9106 |
-2.019 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
09:54:50.29 |
+64:12:59.9 |
HIP 48456 |
23.03 |
| 2026-07-29 12:00 |
09:54:55.75 |
+64:12:39.5 |
HIP 48456 |
23.12 |
| 2026-07-30 00:00 |
09:55:01.22 |
+64:12:19.3 |
HIP 48456 |
23.23 |
| 2026-07-30 12:00 |
09:55:06.71 |
+64:11:59.3 |
HIP 48456 |
23.37 |
| 2026-07-31 00:00 |
09:55:12.22 |
+64:11:39.5 |
HIP 48456 |
23.52 |
| 2026-07-31 12:00 |
09:55:17.73 |
+64:11:20.0 |
HIP 48456 |
23.71 |
| 2026-08-01 00:00 |
09:55:23.27 |
+64:11:00.7 |
HIP 48456 |
23.91 |
| 2026-08-01 12:00 |
09:55:28.81 |
+64:10:41.6 |
HIP 48456 |
24.13 |
| 2026-08-02 00:00 |
09:55:34.37 |
+64:10:22.7 |
HIP 48456 |
24.38 |
| 2026-08-02 12:00 |
09:55:39.94 |
+64:10:04.1 |
HIP 48456 |
24.65 |
| 2026-08-03 00:00 |
09:55:45.53 |
+64:09:45.8 |
HIP 48456 |
24.93 |
| 2026-08-03 12:00 |
09:55:51.12 |
+64:09:27.6 |
HIP 48456 |
25.24 |
| 2026-08-04 00:00 |
09:55:56.73 |
+64:09:09.7 |
HIP 48456 |
25.56 |
| 2026-08-04 12:00 |
09:56:02.35 |
+64:08:52.0 |
HIP 48456 |
25.90 |
| 2026-08-05 00:00 |
09:56:07.99 |
+64:08:34.6 |
HIP 48456 |
26.26 |
| 2026-08-05 12:00 |
09:56:13.63 |
+64:08:17.4 |
HIP 48456 |
26.63 |
| 2026-08-06 00:00 |
09:56:19.28 |
+64:08:00.4 |
HIP 48456 |
27.02 |
| 2026-08-06 12:00 |
09:56:24.95 |
+64:07:43.7 |
HIP 48456 |
27.42 |
| 2026-08-07 00:00 |
09:56:30.62 |
+64:07:27.2 |
HIP 48456 |
27.84 |
| 2026-08-07 12:00 |
09:56:36.30 |
+64:07:11.0 |
HIP 48456 |
28.27 |
| 2026-08-08 00:00 |
09:56:42.00 |
+64:06:55.0 |
HIP 48456 |
28.71 |
| 2026-08-08 12:00 |
09:56:47.70 |
+64:06:39.3 |
HIP 48456 |
29.16 |
| 2026-08-09 00:00 |
09:56:53.41 |
+64:06:23.8 |
HIP 48456 |
29.63 |
| 2026-08-09 12:00 |
09:56:59.13 |
+64:06:08.6 |
HIP 48456 |
30.10 |
| 2026-08-10 00:00 |
09:57:04.85 |
+64:05:53.6 |
HIP 48456 |
30.59 |
| 2026-08-10 12:00 |
09:57:10.59 |
+64:05:38.8 |
HIP 48456 |
31.08 |
| 2026-08-11 00:00 |
09:57:16.33 |
+64:05:24.3 |
HIP 48456 |
31.59 |
| 2026-08-11 12:00 |
09:57:22.07 |
+64:05:10.1 |
HIP 48456 |
32.10 |
| 2026-08-12 00:00 |
09:57:27.83 |
+64:04:56.1 |
HIP 48456 |
32.62 |
| 2026-08-12 12:00 |
09:57:33.59 |
+64:04:42.4 |
HIP 48456 |
33.15 |
| 2026-08-13 00:00 |
09:57:39.35 |
+64:04:28.9 |
HIP 48456 |
33.68 |
| 2026-08-13 12:00 |
09:57:45.12 |
+64:04:15.7 |
HIP 48456 |
34.22 |
| 2026-08-14 00:00 |
09:57:50.89 |
+64:04:02.8 |
HIP 48456 |
34.77 |
| 2026-08-14 12:00 |
09:57:56.67 |
+64:03:50.1 |
HIP 48922 |
35.32 |
| 2026-08-15 00:00 |
09:58:02.45 |
+64:03:37.6 |
HIP 48922 |
35.43 |
| 2026-08-15 12:00 |
09:58:08.24 |
+64:03:25.5 |
HIP 48922 |
35.55 |
| 2026-08-16 00:00 |
09:58:14.03 |
+64:03:13.5 |
HIP 48922 |
35.68 |
| 2026-08-16 12:00 |
09:58:19.82 |
+64:03:01.9 |
HIP 49291 |
35.11 |
| 2026-08-17 00:00 |
09:58:25.61 |
+64:02:50.5 |
HIP 49291 |
34.50 |
| 2026-08-17 12:00 |
09:58:31.40 |
+64:02:39.4 |
HIP 49291 |
33.90 |
| 2026-08-18 00:00 |
09:58:37.20 |
+64:02:28.5 |
HIP 49291 |
33.29 |
| 2026-08-18 12:00 |
09:58:43.00 |
+64:02:17.9 |
HIP 49291 |
32.68 |
| 2026-08-19 00:00 |
09:58:48.79 |
+64:02:07.6 |
HIP 49291 |
32.08 |