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) |
| 2026-06-01 00:00 |
04:58:36.55 |
+00:37:15.3 |
HIP 23105 |
11.14 |
| 2026-06-01 12:00 |
04:58:38.73 |
+00:37:19.1 |
HIP 23105 |
11.44 |
| 2026-06-02 00:00 |
04:58:40.91 |
+00:37:22.8 |
HIP 23105 |
11.76 |
| 2026-06-02 12:00 |
04:58:43.10 |
+00:37:26.4 |
HIP 23105 |
12.10 |
| 2026-06-03 00:00 |
04:58:45.28 |
+00:37:29.9 |
HIP 23105 |
12.45 |
| 2026-06-03 12:00 |
04:58:47.47 |
+00:37:33.3 |
HIP 23105 |
12.81 |
| 2026-06-04 00:00 |
04:58:49.65 |
+00:37:36.6 |
HIP 23105 |
13.19 |
| 2026-06-04 12:00 |
04:58:51.84 |
+00:37:39.8 |
HIP 23105 |
13.57 |
| 2026-06-05 00:00 |
04:58:54.03 |
+00:37:42.9 |
HIP 23105 |
13.97 |
| 2026-06-05 12:00 |
04:58:56.21 |
+00:37:45.9 |
HIP 23105 |
14.37 |
| 2026-06-06 00:00 |
04:58:58.40 |
+00:37:48.8 |
HIP 23105 |
14.78 |
| 2026-06-06 12:00 |
04:59:00.59 |
+00:37:51.5 |
HIP 23222 |
14.54 |
| 2026-06-07 00:00 |
04:59:02.78 |
+00:37:54.2 |
HIP 23222 |
14.09 |
| 2026-06-07 12:00 |
04:59:04.97 |
+00:37:56.8 |
HIP 23222 |
13.64 |
| 2026-06-08 00:00 |
04:59:07.16 |
+00:37:59.3 |
HIP 23222 |
13.21 |
| 2026-06-08 12:00 |
04:59:09.34 |
+00:38:01.7 |
HIP 23222 |
12.78 |
| 2026-06-09 00:00 |
04:59:11.53 |
+00:38:03.9 |
HIP 23222 |
12.36 |
| 2026-06-09 12:00 |
04:59:13.72 |
+00:38:06.1 |
HIP 23222 |
11.95 |
| 2026-06-10 00:00 |
04:59:15.91 |
+00:38:08.2 |
HIP 23222 |
11.55 |
| 2026-06-10 12:00 |
04:59:18.09 |
+00:38:10.1 |
HIP 23222 |
11.16 |
| 2026-06-11 00:00 |
04:59:20.28 |
+00:38:12.0 |
HIP 23222 |
10.79 |
| 2026-06-11 12:00 |
04:59:22.46 |
+00:38:13.8 |
HIP 23222 |
10.42 |
| 2026-06-12 00:00 |
04:59:24.64 |
+00:38:15.4 |
HIP 23222 |
10.08 |
| 2026-06-12 12:00 |
04:59:26.82 |
+00:38:16.9 |
HIP 23222 |
9.75 |
| 2026-06-13 00:00 |
04:59:29.00 |
+00:38:18.4 |
HIP 23222 |
9.44 |
| 2026-06-13 12:00 |
04:59:31.18 |
+00:38:19.7 |
HIP 23222 |
9.15 |
| 2026-06-14 00:00 |
04:59:33.36 |
+00:38:20.9 |
HIP 23222 |
8.88 |
| 2026-06-14 12:00 |
04:59:35.53 |
+00:38:22.0 |
HIP 23222 |
8.64 |
| 2026-06-15 00:00 |
04:59:37.70 |
+00:38:23.1 |
HIP 23222 |
8.43 |
| 2026-06-15 12:00 |
04:59:39.87 |
+00:38:24.0 |
HIP 23222 |
8.24 |
| 2026-06-16 00:00 |
04:59:42.04 |
+00:38:24.8 |
HIP 23222 |
8.09 |
| 2026-06-16 12:00 |
04:59:44.20 |
+00:38:25.5 |
HIP 23222 |
7.96 |
| 2026-06-17 00:00 |
04:59:46.36 |
+00:38:26.0 |
HIP 23222 |
7.87 |
| 2026-06-17 12:00 |
04:59:48.52 |
+00:38:26.5 |
HIP 23222 |
7.82 |
| 2026-06-18 00:00 |
04:59:50.67 |
+00:38:26.9 |
HIP 23222 |
7.80 |
| 2026-06-18 12:00 |
04:59:52.83 |
+00:38:27.2 |
HIP 23222 |
7.82 |
| 2026-06-19 00:00 |
04:59:54.97 |
+00:38:27.3 |
HIP 23222 |
7.87 |
| 2026-06-19 12:00 |
04:59:57.12 |
+00:38:27.4 |
HIP 23222 |
7.95 |
| 2026-06-20 00:00 |
04:59:59.26 |
+00:38:27.3 |
HIP 23222 |
8.07 |
| 2026-06-20 12:00 |
05:00:01.39 |
+00:38:27.2 |
HIP 23222 |
8.22 |
| 2026-06-21 00:00 |
05:00:03.53 |
+00:38:26.9 |
HIP 23222 |
8.40 |
| 2026-06-21 12:00 |
05:00:05.65 |
+00:38:26.5 |
HIP 23222 |
8.60 |
| 2026-06-22 00:00 |
05:00:07.78 |
+00:38:26.0 |
HIP 23222 |
8.83 |