메타데이터
| 항목 |
값 |
| Designation |
56P/Slaughter-Burnham |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-07-18T01:58:14.727360Z |
| Orbit solution date (soln_date, UTC) |
2023-10-16T10:35:53Z |
| Obs used |
1986 |
| NEO |
- |
| M1 |
9.300 |
| K1 |
14.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2013-08-12.0000000 |
| e |
0.50729701 |
| q (au) |
2.505871 |
| a (au) |
5.085966 |
| i (deg) |
8.147198 |
| Ω (om, deg) |
346.037614 |
| ω (w, deg) |
44.217463 |
| M (ma, deg) |
267.962120 |
밝기
산란 + 전체 선형
$$
M_a = (7.594 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.594 |
| 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 |
| 2015-07-24 |
2016-07-15 |
+13.5328 |
-5.371 |
| 2016-07-20 |
2018-01-23 |
+3.6320 |
-1.563 |
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 |
18:53:16.18 |
-31:53:39.6 |
HIP 92723 |
7.87 |
| 2026-07-29 12:00 |
18:52:56.35 |
-31:53:18.9 |
HIP 92723 |
11.31 |
| 2026-07-30 00:00 |
18:52:36.68 |
-31:52:57.1 |
HIP 92723 |
15.13 |
| 2026-07-30 12:00 |
18:52:17.17 |
-31:52:34.5 |
HIP 92723 |
19.08 |
| 2026-07-31 00:00 |
18:51:57.81 |
-31:52:10.8 |
HIP 92723 |
23.08 |
| 2026-07-31 12:00 |
18:51:38.62 |
-31:51:46.3 |
HIP 92723 |
27.09 |
| 2026-08-01 00:00 |
18:51:19.60 |
-31:51:20.7 |
HIP 92397 |
27.70 |
| 2026-08-01 12:00 |
18:51:00.74 |
-31:50:54.3 |
HIP 92397 |
24.58 |
| 2026-08-02 00:00 |
18:50:42.06 |
-31:50:26.9 |
HIP 92397 |
21.78 |
| 2026-08-02 12:00 |
18:50:23.55 |
-31:49:58.6 |
HIP 92397 |
19.41 |
| 2026-08-03 00:00 |
18:50:05.23 |
-31:49:29.4 |
HIP 92397 |
17.61 |
| 2026-08-03 12:00 |
18:49:47.09 |
-31:48:59.3 |
HIP 92397 |
16.55 |
| 2026-08-04 00:00 |
18:49:29.14 |
-31:48:28.2 |
HIP 92280 |
14.55 |
| 2026-08-04 12:00 |
18:49:11.37 |
-31:47:56.3 |
HIP 92280 |
11.10 |
| 2026-08-05 00:00 |
18:48:53.80 |
-31:47:23.5 |
HIP 92280 |
8.02 |
| 2026-08-05 12:00 |
18:48:36.43 |
-31:46:49.9 |
HIP 92280 |
5.86 |
| 2026-08-06 00:00 |
18:48:19.25 |
-31:46:15.3 |
HIP 92280 |
5.69 |
| 2026-08-06 12:00 |
18:48:02.28 |
-31:45:39.9 |
HIP 92280 |
7.57 |
| 2026-08-07 00:00 |
18:47:45.52 |
-31:45:03.7 |
HIP 92280 |
10.42 |
| 2026-08-07 12:00 |
18:47:28.96 |
-31:44:26.6 |
HIP 92280 |
13.61 |
| 2026-08-08 00:00 |
18:47:12.62 |
-31:43:48.6 |
HIP 92280 |
16.91 |
| 2026-08-08 12:00 |
18:46:56.50 |
-31:43:09.9 |
HIP 92280 |
20.26 |
| 2026-08-09 00:00 |
18:46:40.59 |
-31:42:30.3 |
HIP 92011 |
18.42 |
| 2026-08-09 12:00 |
18:46:24.90 |
-31:41:49.9 |
HIP 92011 |
15.24 |
| 2026-08-10 00:00 |
18:46:09.44 |
-31:41:08.7 |
HIP 92011 |
12.24 |
| 2026-08-10 12:00 |
18:45:54.21 |
-31:40:26.8 |
HIP 92011 |
9.54 |
| 2026-08-11 00:00 |
18:45:39.21 |
-31:39:44.0 |
HIP 92011 |
7.38 |
| 2026-08-11 12:00 |
18:45:24.44 |
-31:39:00.5 |
HIP 92011 |
6.31 |
| 2026-08-12 00:00 |
18:45:09.91 |
-31:38:16.2 |
HIP 92011 |
6.79 |
| 2026-08-12 12:00 |
18:44:55.61 |
-31:37:31.1 |
HIP 92011 |
8.50 |
| 2026-08-13 00:00 |
18:44:41.56 |
-31:36:45.3 |
HIP 92011 |
10.84 |
| 2026-08-13 12:00 |
18:44:27.75 |
-31:35:58.8 |
HIP 91953 |
12.14 |
| 2026-08-14 00:00 |
18:44:14.19 |
-31:35:11.5 |
HIP 91953 |
12.24 |
| 2026-08-14 12:00 |
18:44:00.88 |
-31:34:23.5 |
HIP 91953 |
13.02 |
| 2026-08-15 00:00 |
18:43:47.82 |
-31:33:34.9 |
HIP 91953 |
14.32 |
| 2026-08-15 12:00 |
18:43:35.01 |
-31:32:45.5 |
HIP 91953 |
15.99 |
| 2026-08-16 00:00 |
18:43:22.46 |
-31:31:55.4 |
HIP 91953 |
17.91 |
| 2026-08-16 12:00 |
18:43:10.16 |
-31:31:04.7 |
HIP 91953 |
19.98 |
| 2026-08-17 00:00 |
18:42:58.12 |
-31:30:13.3 |
HIP 91643 |
21.30 |
| 2026-08-17 12:00 |
18:42:46.35 |
-31:29:21.2 |
HIP 91643 |
18.68 |
| 2026-08-18 00:00 |
18:42:34.84 |
-31:28:28.5 |
HIP 91643 |
16.14 |
| 2026-08-18 12:00 |
18:42:23.59 |
-31:27:35.2 |
HIP 91643 |
13.66 |
| 2026-08-19 00:00 |
18:42:12.61 |
-31:26:41.2 |
HIP 91643 |
11.29 |