메타데이터
| 항목 |
값 |
| Designation |
C/1993 Q1 (Mueller) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1994-03-26T06:39:06.874560Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:47Z |
| Obs used |
495 |
| NEO |
- |
| M1 |
9.800 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1993-10-28.0000000 |
| e |
1.00032242 |
| q (au) |
0.967251 |
| a (au) |
-2999.968986 |
| i (deg) |
105.026500 |
| Ω (om, deg) |
193.788984 |
| ω (w, deg) |
261.032961 |
| M (ma, deg) |
-0.000895 |
밝기
산란 + 전체 선형
$$
M_a = (8.169 + 4.619\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.169 |
| n |
4.619 |
| gf |
1.000 |
| gb |
-0.687 |
| k |
0.800 |
| 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 |
| 1992-09-28 |
1993-12-09 |
-0.3959 |
+0.181 |
| 1993-12-09 |
1994-02-02 |
+0.8399 |
-0.656 |
| 1994-04-01 |
1994-07-02 |
+14.9311 |
-0.152 |
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 |
13:39:44.53 |
+59:26:57.5 |
HIP 66774 |
25.41 |
| 2026-07-29 12:00 |
13:39:45.18 |
+59:26:29.0 |
HIP 66774 |
24.94 |
| 2026-07-30 00:00 |
13:39:45.86 |
+59:26:00.6 |
HIP 66774 |
24.48 |
| 2026-07-30 12:00 |
13:39:46.57 |
+59:25:32.1 |
HIP 66774 |
24.02 |
| 2026-07-31 00:00 |
13:39:47.31 |
+59:25:03.7 |
HIP 66774 |
23.55 |
| 2026-07-31 12:00 |
13:39:48.08 |
+59:24:35.2 |
HIP 66774 |
23.08 |
| 2026-08-01 00:00 |
13:39:48.88 |
+59:24:06.8 |
HIP 66774 |
22.62 |
| 2026-08-01 12:00 |
13:39:49.71 |
+59:23:38.4 |
HIP 66774 |
22.15 |
| 2026-08-02 00:00 |
13:39:50.58 |
+59:23:10.1 |
HIP 66774 |
21.68 |
| 2026-08-02 12:00 |
13:39:51.47 |
+59:22:41.7 |
HIP 66774 |
21.21 |
| 2026-08-03 00:00 |
13:39:52.39 |
+59:22:13.4 |
HIP 66774 |
20.74 |
| 2026-08-03 12:00 |
13:39:53.35 |
+59:21:45.1 |
HIP 66774 |
20.27 |
| 2026-08-04 00:00 |
13:39:54.33 |
+59:21:16.9 |
HIP 66774 |
19.80 |
| 2026-08-04 12:00 |
13:39:55.35 |
+59:20:48.6 |
HIP 66774 |
19.32 |
| 2026-08-05 00:00 |
13:39:56.40 |
+59:20:20.4 |
HIP 66774 |
18.85 |
| 2026-08-05 12:00 |
13:39:57.47 |
+59:19:52.3 |
HIP 66774 |
18.38 |
| 2026-08-06 00:00 |
13:39:58.58 |
+59:19:24.1 |
HIP 66774 |
17.90 |
| 2026-08-06 12:00 |
13:39:59.71 |
+59:18:56.1 |
HIP 66774 |
17.43 |
| 2026-08-07 00:00 |
13:40:00.88 |
+59:18:28.0 |
HIP 66774 |
16.95 |
| 2026-08-07 12:00 |
13:40:02.07 |
+59:18:00.0 |
HIP 66774 |
16.47 |
| 2026-08-08 00:00 |
13:40:03.30 |
+59:17:32.1 |
HIP 66774 |
16.00 |
| 2026-08-08 12:00 |
13:40:04.56 |
+59:17:04.1 |
HIP 66774 |
15.52 |
| 2026-08-09 00:00 |
13:40:05.84 |
+59:16:36.3 |
HIP 66774 |
15.04 |
| 2026-08-09 12:00 |
13:40:07.16 |
+59:16:08.5 |
HIP 66774 |
14.56 |
| 2026-08-10 00:00 |
13:40:08.50 |
+59:15:40.7 |
HIP 66774 |
14.08 |
| 2026-08-10 12:00 |
13:40:09.87 |
+59:15:13.0 |
HIP 66774 |
13.60 |
| 2026-08-11 00:00 |
13:40:11.28 |
+59:14:45.4 |
HIP 66774 |
13.12 |
| 2026-08-11 12:00 |
13:40:12.71 |
+59:14:17.8 |
HIP 66774 |
12.64 |
| 2026-08-12 00:00 |
13:40:14.17 |
+59:13:50.3 |
HIP 66774 |
12.16 |
| 2026-08-12 12:00 |
13:40:15.66 |
+59:13:22.8 |
HIP 66774 |
11.68 |
| 2026-08-13 00:00 |
13:40:17.18 |
+59:12:55.4 |
HIP 66774 |
11.20 |
| 2026-08-13 12:00 |
13:40:18.72 |
+59:12:28.1 |
HIP 66774 |
10.72 |
| 2026-08-14 00:00 |
13:40:20.30 |
+59:12:00.8 |
HIP 66774 |
10.24 |
| 2026-08-14 12:00 |
13:40:21.90 |
+59:11:33.6 |
HIP 66774 |
9.76 |
| 2026-08-15 00:00 |
13:40:23.54 |
+59:11:06.5 |
HIP 66774 |
9.28 |
| 2026-08-15 12:00 |
13:40:25.20 |
+59:10:39.5 |
HIP 66774 |
8.80 |
| 2026-08-16 00:00 |
13:40:26.89 |
+59:10:12.5 |
HIP 66774 |
8.32 |
| 2026-08-16 12:00 |
13:40:28.60 |
+59:09:45.7 |
HIP 66774 |
7.84 |
| 2026-08-17 00:00 |
13:40:30.35 |
+59:09:18.9 |
HIP 66774 |
7.36 |
| 2026-08-17 12:00 |
13:40:32.12 |
+59:08:52.2 |
HIP 66774 |
6.89 |
| 2026-08-18 00:00 |
13:40:33.92 |
+59:08:25.5 |
HIP 66774 |
6.41 |
| 2026-08-18 12:00 |
13:40:35.75 |
+59:07:59.0 |
HIP 66774 |
5.94 |
| 2026-08-19 00:00 |
13:40:37.60 |
+59:07:32.5 |
HIP 66774 |
5.47 |