메타데이터
| 항목 |
값 |
| Designation |
C/1996 B1 (Szczepanski) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1996-02-06T21:56:56.152320Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:47Z |
| Obs used |
489 |
| NEO |
- |
| M1 |
7.100 |
| K1 |
31.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1996-02-24.0000000 |
| e |
0.99076543 |
| q (au) |
1.448788 |
| a (au) |
156.887422 |
| i (deg) |
51.918927 |
| Ω (om, deg) |
345.441855 |
| ω (w, deg) |
151.283322 |
| M (ma, deg) |
0.008569 |
밝기
산란 + 전체 선형
$$
M_a = (7.421 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.421 |
| n |
6.000 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
0.907 |
| δ90 |
1.000 |
| 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 |
| 1996-02-07 |
1996-04-03 |
-0.9314 |
+0.297 |
| 1996-04-03 |
1996-05-22 |
+57.1178 |
-12.969 |
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 |
21:59:43.47 |
-50:16:51.8 |
HIP 108586 |
2.37 |
| 2026-07-29 12:00 |
21:59:40.36 |
-50:17:07.2 |
HIP 108586 |
2.82 |
| 2026-07-30 00:00 |
21:59:37.25 |
-50:17:22.5 |
HIP 108586 |
3.31 |
| 2026-07-30 12:00 |
21:59:34.12 |
-50:17:37.6 |
HIP 108586 |
3.82 |
| 2026-07-31 00:00 |
21:59:30.98 |
-50:17:52.6 |
HIP 108586 |
4.34 |
| 2026-07-31 12:00 |
21:59:27.83 |
-50:18:07.5 |
HIP 108586 |
4.86 |
| 2026-08-01 00:00 |
21:59:24.67 |
-50:18:22.2 |
HIP 108586 |
5.40 |
| 2026-08-01 12:00 |
21:59:21.50 |
-50:18:36.7 |
HIP 108586 |
5.94 |
| 2026-08-02 00:00 |
21:59:18.32 |
-50:18:51.1 |
HIP 108586 |
6.48 |
| 2026-08-02 12:00 |
21:59:15.13 |
-50:19:05.4 |
HIP 108586 |
7.02 |
| 2026-08-03 00:00 |
21:59:11.94 |
-50:19:19.5 |
HIP 108586 |
7.57 |
| 2026-08-03 12:00 |
21:59:08.73 |
-50:19:33.4 |
HIP 108586 |
8.12 |
| 2026-08-04 00:00 |
21:59:05.51 |
-50:19:47.2 |
HIP 108586 |
8.67 |
| 2026-08-04 12:00 |
21:59:02.29 |
-50:20:00.8 |
HIP 108586 |
9.22 |
| 2026-08-05 00:00 |
21:58:59.06 |
-50:20:14.3 |
HIP 108586 |
9.77 |
| 2026-08-05 12:00 |
21:58:55.82 |
-50:20:27.6 |
HIP 108586 |
10.32 |
| 2026-08-06 00:00 |
21:58:52.57 |
-50:20:40.8 |
HIP 108586 |
10.87 |
| 2026-08-06 12:00 |
21:58:49.31 |
-50:20:53.8 |
HIP 108586 |
11.43 |
| 2026-08-07 00:00 |
21:58:46.05 |
-50:21:06.6 |
HIP 108586 |
11.98 |
| 2026-08-07 12:00 |
21:58:42.78 |
-50:21:19.3 |
HIP 108586 |
12.54 |
| 2026-08-08 00:00 |
21:58:39.50 |
-50:21:31.8 |
HIP 108586 |
13.09 |
| 2026-08-08 12:00 |
21:58:36.22 |
-50:21:44.1 |
HIP 108586 |
13.65 |
| 2026-08-09 00:00 |
21:58:32.93 |
-50:21:56.3 |
HIP 108586 |
14.20 |
| 2026-08-09 12:00 |
21:58:29.64 |
-50:22:08.3 |
HIP 108586 |
14.75 |
| 2026-08-10 00:00 |
21:58:26.33 |
-50:22:20.1 |
HIP 108586 |
15.31 |
| 2026-08-10 12:00 |
21:58:23.03 |
-50:22:31.8 |
HIP 108586 |
15.86 |
| 2026-08-11 00:00 |
21:58:19.72 |
-50:22:43.3 |
HIP 108586 |
16.42 |
| 2026-08-11 12:00 |
21:58:16.40 |
-50:22:54.6 |
HIP 108586 |
16.97 |
| 2026-08-12 00:00 |
21:58:13.08 |
-50:23:05.7 |
HIP 108586 |
17.53 |
| 2026-08-12 12:00 |
21:58:09.75 |
-50:23:16.7 |
HIP 108586 |
18.08 |
| 2026-08-13 00:00 |
21:58:06.42 |
-50:23:27.5 |
HIP 108586 |
18.63 |
| 2026-08-13 12:00 |
21:58:03.09 |
-50:23:38.1 |
HIP 108586 |
19.18 |
| 2026-08-14 00:00 |
21:57:59.75 |
-50:23:48.6 |
HIP 108586 |
19.74 |
| 2026-08-14 12:00 |
21:57:56.41 |
-50:23:58.8 |
HIP 108586 |
20.29 |
| 2026-08-15 00:00 |
21:57:53.06 |
-50:24:08.9 |
HIP 108586 |
20.84 |
| 2026-08-15 12:00 |
21:57:49.72 |
-50:24:18.8 |
HIP 108586 |
21.39 |
| 2026-08-16 00:00 |
21:57:46.37 |
-50:24:28.5 |
HIP 108586 |
21.94 |
| 2026-08-16 12:00 |
21:57:43.02 |
-50:24:38.0 |
HIP 108586 |
22.49 |
| 2026-08-17 00:00 |
21:57:39.66 |
-50:24:47.4 |
HIP 108586 |
23.04 |
| 2026-08-17 12:00 |
21:57:36.31 |
-50:24:56.5 |
HIP 108586 |
23.59 |
| 2026-08-18 00:00 |
21:57:32.95 |
-50:25:05.5 |
HIP 108586 |
24.13 |
| 2026-08-18 12:00 |
21:57:29.59 |
-50:25:14.3 |
HIP 108586 |
24.68 |
| 2026-08-19 00:00 |
21:57:26.24 |
-50:25:22.9 |
HIP 108586 |
25.23 |