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) |
| 2026-03-26 00:00 |
04:54:54.11 |
+00:16:44.6 |
HIP 22840 |
11.32 |
| 2026-03-26 12:00 |
04:54:54.89 |
+00:16:57.2 |
HIP 22840 |
11.13 |
| 2026-03-27 00:00 |
04:54:55.69 |
+00:17:09.7 |
HIP 22840 |
10.94 |
| 2026-03-27 12:00 |
04:54:56.51 |
+00:17:22.2 |
HIP 22840 |
10.76 |
| 2026-03-28 00:00 |
04:54:57.35 |
+00:17:34.7 |
HIP 22840 |
10.58 |
| 2026-03-28 12:00 |
04:54:58.20 |
+00:17:47.2 |
HIP 22840 |
10.41 |
| 2026-03-29 00:00 |
04:54:59.07 |
+00:17:59.6 |
HIP 22840 |
10.25 |
| 2026-03-29 12:00 |
04:54:59.96 |
+00:18:12.1 |
HIP 22840 |
10.10 |
| 2026-03-30 00:00 |
04:55:00.86 |
+00:18:24.5 |
HIP 22840 |
9.95 |
| 2026-03-30 12:00 |
04:55:01.78 |
+00:18:36.9 |
HIP 22840 |
9.81 |
| 2026-03-31 00:00 |
04:55:02.72 |
+00:18:49.3 |
HIP 22840 |
9.69 |
| 2026-03-31 12:00 |
04:55:03.68 |
+00:19:01.6 |
HIP 22840 |
9.57 |
| 2026-04-01 00:00 |
04:55:04.65 |
+00:19:14.0 |
HIP 22840 |
9.46 |
| 2026-04-01 12:00 |
04:55:05.64 |
+00:19:26.3 |
HIP 22840 |
9.37 |
| 2026-04-02 00:00 |
04:55:06.64 |
+00:19:38.5 |
HIP 22840 |
9.29 |
| 2026-04-02 12:00 |
04:55:07.67 |
+00:19:50.8 |
HIP 22840 |
9.22 |
| 2026-04-03 00:00 |
04:55:08.70 |
+00:20:03.0 |
HIP 22840 |
9.16 |
| 2026-04-03 12:00 |
04:55:09.76 |
+00:20:15.2 |
HIP 22904 |
8.97 |
| 2026-04-04 00:00 |
04:55:10.83 |
+00:20:27.4 |
HIP 22904 |
8.64 |
| 2026-04-04 12:00 |
04:55:11.92 |
+00:20:39.5 |
HIP 22904 |
8.30 |
| 2026-04-05 00:00 |
04:55:13.02 |
+00:20:51.6 |
HIP 22904 |
7.96 |
| 2026-04-05 12:00 |
04:55:14.14 |
+00:21:03.7 |
HIP 22904 |
7.62 |
| 2026-04-06 00:00 |
04:55:15.28 |
+00:21:15.7 |
HIP 22904 |
7.27 |
| 2026-04-06 12:00 |
04:55:16.43 |
+00:21:27.7 |
HIP 22904 |
6.93 |
| 2026-04-07 00:00 |
04:55:17.59 |
+00:21:39.7 |
HIP 22904 |
6.58 |
| 2026-04-07 12:00 |
04:55:18.78 |
+00:21:51.7 |
HIP 22904 |
6.22 |
| 2026-04-08 00:00 |
04:55:19.98 |
+00:22:03.6 |
HIP 22904 |
5.87 |
| 2026-04-08 12:00 |
04:55:21.19 |
+00:22:15.4 |
HIP 22904 |
5.52 |
| 2026-04-09 00:00 |
04:55:22.42 |
+00:22:27.3 |
HIP 22904 |
5.16 |
| 2026-04-09 12:00 |
04:55:23.66 |
+00:22:39.0 |
HIP 22904 |
4.80 |
| 2026-04-10 00:00 |
04:55:24.92 |
+00:22:50.8 |
HIP 22904 |
4.44 |
| 2026-04-10 12:00 |
04:55:26.20 |
+00:23:02.5 |
HIP 22904 |
4.09 |
| 2026-04-11 00:00 |
04:55:27.49 |
+00:23:14.2 |
HIP 22904 |
3.73 |
| 2026-04-11 12:00 |
04:55:28.80 |
+00:23:25.8 |
HIP 22904 |
3.38 |
| 2026-04-12 00:00 |
04:55:30.12 |
+00:23:37.4 |
HIP 22904 |
3.03 |
| 2026-04-12 12:00 |
04:55:31.45 |
+00:23:48.9 |
HIP 22904 |
2.69 |
| 2026-04-13 00:00 |
04:55:32.80 |
+00:24:00.4 |
HIP 22904 |
2.36 |
| 2026-04-13 12:00 |
04:55:34.17 |
+00:24:11.9 |
HIP 22904 |
2.06 |
| 2026-04-14 00:00 |
04:55:35.54 |
+00:24:23.3 |
HIP 22904 |
1.79 |
| 2026-04-14 12:00 |
04:55:36.94 |
+00:24:34.7 |
HIP 22904 |
1.57 |
| 2026-04-15 00:00 |
04:55:38.35 |
+00:24:46.0 |
HIP 22904 |
1.43 |
| 2026-04-15 12:00 |
04:55:39.77 |
+00:24:57.2 |
HIP 22904 |
1.40 |
| 2026-04-16 00:00 |
04:55:41.20 |
+00:25:08.4 |
HIP 22904 |
1.48 |