메타데이터
| 항목 |
값 |
| Designation |
C/1993 A1 (Mueller) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1994-01-12T21:38:07.189440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:43Z |
| Obs used |
714 |
| NEO |
- |
| M1 |
8.100 |
| K1 |
4.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1993-08-20.0000000 |
| e |
1.00184088 |
| q (au) |
1.937455 |
| a (au) |
-1052.462705 |
| i (deg) |
124.878071 |
| Ω (om, deg) |
144.720539 |
| ω (w, deg) |
130.666066 |
| M (ma, deg) |
-0.004212 |
밝기
산란 + 전체 선형
$$
M_a = (5.190 + 3.446\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.190 |
| n |
3.446 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
0.989 |
| 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 |
| 1992-11-26 |
1993-08-06 |
+1.7238 |
-0.931 |
| 1993-08-06 |
1994-01-12 |
-3.7755 |
+1.282 |
| 1994-01-13 |
1994-07-15 |
+9.6590 |
-2.801 |
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 |
11:29:02.01 |
-55:11:57.5 |
HIP 56097 |
8.75 |
| 2026-03-26 12:00 |
11:28:58.54 |
-55:11:43.6 |
HIP 56097 |
9.30 |
| 2026-03-27 00:00 |
11:28:55.08 |
-55:11:29.6 |
HIP 56097 |
9.84 |
| 2026-03-27 12:00 |
11:28:51.63 |
-55:11:15.4 |
HIP 56097 |
10.39 |
| 2026-03-28 00:00 |
11:28:48.19 |
-55:11:00.9 |
HIP 56097 |
10.94 |
| 2026-03-28 12:00 |
11:28:44.76 |
-55:10:46.2 |
HIP 56097 |
11.49 |
| 2026-03-29 00:00 |
11:28:41.33 |
-55:10:31.3 |
HIP 56097 |
12.04 |
| 2026-03-29 12:00 |
11:28:37.92 |
-55:10:16.2 |
HIP 56097 |
12.58 |
| 2026-03-30 00:00 |
11:28:34.51 |
-55:10:00.8 |
HIP 56097 |
13.13 |
| 2026-03-30 12:00 |
11:28:31.12 |
-55:09:45.3 |
HIP 56097 |
13.68 |
| 2026-03-31 00:00 |
11:28:27.73 |
-55:09:29.5 |
HIP 56097 |
14.23 |
| 2026-03-31 12:00 |
11:28:24.35 |
-55:09:13.5 |
HIP 56097 |
14.78 |
| 2026-04-01 00:00 |
11:28:20.99 |
-55:08:57.3 |
HIP 56037 |
15.29 |
| 2026-04-01 12:00 |
11:28:17.64 |
-55:08:40.9 |
HIP 56037 |
15.26 |
| 2026-04-02 00:00 |
11:28:14.29 |
-55:08:24.3 |
HIP 56037 |
15.24 |
| 2026-04-02 12:00 |
11:28:10.96 |
-55:08:07.4 |
HIP 56037 |
15.24 |
| 2026-04-03 00:00 |
11:28:07.64 |
-55:07:50.4 |
HIP 56037 |
15.25 |
| 2026-04-03 12:00 |
11:28:04.33 |
-55:07:33.2 |
HIP 56037 |
15.28 |
| 2026-04-04 00:00 |
11:28:01.04 |
-55:07:15.7 |
HIP 56005 |
15.22 |
| 2026-04-04 12:00 |
11:27:57.75 |
-55:06:58.1 |
HIP 56005 |
15.12 |
| 2026-04-05 00:00 |
11:27:54.48 |
-55:06:40.2 |
HIP 56005 |
15.03 |
| 2026-04-05 12:00 |
11:27:51.22 |
-55:06:22.2 |
HIP 56005 |
14.97 |
| 2026-04-06 00:00 |
11:27:47.98 |
-55:06:03.9 |
HIP 56005 |
14.91 |
| 2026-04-06 12:00 |
11:27:44.74 |
-55:05:45.5 |
HIP 56005 |
14.88 |
| 2026-04-07 00:00 |
11:27:41.53 |
-55:05:26.8 |
HIP 56005 |
14.86 |
| 2026-04-07 12:00 |
11:27:38.32 |
-55:05:08.0 |
HIP 56005 |
14.86 |
| 2026-04-08 00:00 |
11:27:35.13 |
-55:04:49.0 |
HIP 56005 |
14.88 |
| 2026-04-08 12:00 |
11:27:31.95 |
-55:04:29.8 |
HIP 56005 |
14.91 |
| 2026-04-09 00:00 |
11:27:28.79 |
-55:04:10.4 |
HIP 56005 |
14.97 |
| 2026-04-09 12:00 |
11:27:25.64 |
-55:03:50.8 |
HIP 56005 |
15.03 |
| 2026-04-10 00:00 |
11:27:22.51 |
-55:03:31.0 |
HIP 56005 |
15.12 |
| 2026-04-10 12:00 |
11:27:19.39 |
-55:03:11.0 |
HIP 56005 |
15.22 |
| 2026-04-11 00:00 |
11:27:16.29 |
-55:02:50.8 |
HIP 56005 |
15.34 |
| 2026-04-11 12:00 |
11:27:13.20 |
-55:02:30.5 |
HIP 56005 |
15.47 |
| 2026-04-12 00:00 |
11:27:10.13 |
-55:02:10.0 |
HIP 56005 |
15.62 |
| 2026-04-12 12:00 |
11:27:07.07 |
-55:01:49.3 |
HIP 56005 |
15.78 |
| 2026-04-13 00:00 |
11:27:04.04 |
-55:01:28.4 |
HIP 56005 |
15.96 |
| 2026-04-13 12:00 |
11:27:01.01 |
-55:01:07.3 |
HIP 56005 |
16.15 |
| 2026-04-14 00:00 |
11:26:58.01 |
-55:00:46.1 |
HIP 56005 |
16.35 |
| 2026-04-14 12:00 |
11:26:55.02 |
-55:00:24.7 |
HIP 56005 |
16.57 |
| 2026-04-15 00:00 |
11:26:52.05 |
-55:00:03.1 |
HIP 56005 |
16.80 |
| 2026-04-15 12:00 |
11:26:49.10 |
-54:59:41.4 |
HIP 56005 |
17.04 |
| 2026-04-16 00:00 |
11:26:46.16 |
-54:59:19.4 |
HIP 56005 |
17.29 |