메타데이터
| 항목 |
값 |
| Designation |
C/1996 N1 (Brewington) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1996-08-03T10:10:19.309440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:50Z |
| Obs used |
303 |
| NEO |
- |
| M1 |
11.900 |
| K1 |
16.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1996-08-09.0000000 |
| e |
1.00056420 |
| q (au) |
0.925821 |
| a (au) |
-1640.935799 |
| i (deg) |
52.147950 |
| Ω (om, deg) |
234.900362 |
| ω (w, deg) |
43.969685 |
| M (ma, deg) |
0.000083 |
밝기
산란 + 전체 선형
$$
M_a = (8.902 + 5.315\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.902 |
| n |
5.315 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
0.800 |
| 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 |
| 1996-07-05 |
1996-08-02 |
+5.1066 |
+1.494 |
| 1996-08-03 |
1996-09-01 |
-15.3196 |
-0.453 |
| 1996-09-01 |
1996-09-24 |
+16.0071 |
-1.174 |
| 1996-09-24 |
1996-11-09 |
+1.3962 |
+0.718 |
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 |
05:02:23.91 |
+00:33:04.3 |
HIP 23408 |
13.25 |
| 2026-07-29 12:00 |
05:02:25.35 |
+00:32:56.3 |
HIP 23408 |
13.58 |
| 2026-07-30 00:00 |
05:02:26.77 |
+00:32:48.2 |
HIP 23408 |
13.92 |
| 2026-07-30 12:00 |
05:02:28.18 |
+00:32:40.1 |
HIP 23408 |
14.25 |
| 2026-07-31 00:00 |
05:02:29.57 |
+00:32:31.8 |
HIP 23408 |
14.59 |
| 2026-07-31 12:00 |
05:02:30.96 |
+00:32:23.5 |
HIP 23408 |
14.92 |
| 2026-08-01 00:00 |
05:02:32.33 |
+00:32:15.0 |
HIP 23408 |
15.26 |
| 2026-08-01 12:00 |
05:02:33.68 |
+00:32:06.5 |
HIP 23408 |
15.60 |
| 2026-08-02 00:00 |
05:02:35.02 |
+00:31:57.9 |
HIP 23408 |
15.93 |
| 2026-08-02 12:00 |
05:02:36.35 |
+00:31:49.2 |
HIP 23408 |
16.27 |
| 2026-08-03 00:00 |
05:02:37.66 |
+00:31:40.4 |
HIP 23408 |
16.60 |
| 2026-08-03 12:00 |
05:02:38.96 |
+00:31:31.6 |
HIP 23408 |
16.94 |
| 2026-08-04 00:00 |
05:02:40.24 |
+00:31:22.7 |
HIP 23408 |
17.27 |
| 2026-08-04 12:00 |
05:02:41.51 |
+00:31:13.6 |
HIP 23408 |
17.61 |
| 2026-08-05 00:00 |
05:02:42.76 |
+00:31:04.5 |
HIP 23408 |
17.94 |
| 2026-08-05 12:00 |
05:02:44.00 |
+00:30:55.3 |
HIP 23408 |
18.27 |
| 2026-08-06 00:00 |
05:02:45.23 |
+00:30:46.1 |
HIP 23408 |
18.60 |
| 2026-08-06 12:00 |
05:02:46.43 |
+00:30:36.7 |
HIP 23408 |
18.93 |
| 2026-08-07 00:00 |
05:02:47.63 |
+00:30:27.3 |
HIP 23408 |
19.26 |
| 2026-08-07 12:00 |
05:02:48.81 |
+00:30:17.8 |
HIP 23408 |
19.58 |
| 2026-08-08 00:00 |
05:02:49.97 |
+00:30:08.2 |
HIP 23408 |
19.90 |
| 2026-08-08 12:00 |
05:02:51.12 |
+00:29:58.5 |
HIP 23408 |
20.23 |
| 2026-08-09 00:00 |
05:02:52.25 |
+00:29:48.8 |
HIP 23408 |
20.55 |
| 2026-08-09 12:00 |
05:02:53.37 |
+00:29:39.0 |
HIP 23408 |
20.87 |
| 2026-08-10 00:00 |
05:02:54.47 |
+00:29:29.1 |
HIP 23408 |
21.18 |
| 2026-08-10 12:00 |
05:02:55.56 |
+00:29:19.1 |
HIP 23408 |
21.50 |
| 2026-08-11 00:00 |
05:02:56.63 |
+00:29:09.0 |
HIP 23408 |
21.81 |
| 2026-08-11 12:00 |
05:02:57.68 |
+00:28:58.9 |
HIP 23408 |
22.12 |
| 2026-08-12 00:00 |
05:02:58.72 |
+00:28:48.7 |
HIP 23408 |
22.43 |
| 2026-08-12 12:00 |
05:02:59.74 |
+00:28:38.4 |
HIP 23408 |
22.73 |
| 2026-08-13 00:00 |
05:03:00.75 |
+00:28:28.1 |
HIP 23408 |
23.03 |
| 2026-08-13 12:00 |
05:03:01.74 |
+00:28:17.6 |
HIP 23408 |
23.34 |
| 2026-08-14 00:00 |
05:03:02.71 |
+00:28:07.1 |
HIP 23408 |
23.63 |
| 2026-08-14 12:00 |
05:03:03.67 |
+00:27:56.6 |
HIP 23408 |
23.93 |
| 2026-08-15 00:00 |
05:03:04.61 |
+00:27:45.9 |
HIP 23408 |
24.23 |
| 2026-08-15 12:00 |
05:03:05.53 |
+00:27:35.2 |
HIP 23408 |
24.52 |
| 2026-08-16 00:00 |
05:03:06.44 |
+00:27:24.5 |
HIP 23408 |
24.81 |
| 2026-08-16 12:00 |
05:03:07.33 |
+00:27:13.6 |
HIP 23408 |
25.09 |
| 2026-08-17 00:00 |
05:03:08.21 |
+00:27:02.7 |
HIP 23408 |
25.38 |
| 2026-08-17 12:00 |
05:03:09.06 |
+00:26:51.7 |
HIP 23408 |
25.66 |
| 2026-08-18 00:00 |
05:03:09.90 |
+00:26:40.7 |
HIP 23408 |
25.94 |
| 2026-08-18 12:00 |
05:03:10.73 |
+00:26:29.6 |
HIP 23408 |
26.21 |
| 2026-08-19 00:00 |
05:03:11.53 |
+00:26:18.4 |
HIP 23408 |
26.49 |