메타데이터
| 항목 |
값 |
| Designation |
C/1991 X2 (Mueller) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1992-03-21T04:48:32.227200Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:41Z |
| Obs used |
149 |
| NEO |
- |
| M1 |
12.100 |
| K1 |
16.750 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1992-01-30.0000000 |
| e |
1.00020139 |
| q (au) |
0.198797 |
| a (au) |
-987.134248 |
| i (deg) |
95.574370 |
| Ω (om, deg) |
288.783115 |
| ω (w, deg) |
306.985362 |
| M (ma, deg) |
-0.001627 |
밝기
산란 + 전체 선형
$$
M_a = (10.627 + 5.215\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.627 |
| n |
5.215 |
| gf |
1.000 |
| gb |
-0.500 |
| k |
1.000 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
10:48:10.89 |
+76:15:44.1 |
HIP 53062 |
19.75 |
| 2026-03-26 12:00 |
10:48:03.64 |
+76:15:36.3 |
HIP 53062 |
19.90 |
| 2026-03-27 00:00 |
10:47:56.43 |
+76:15:28.2 |
HIP 53062 |
20.06 |
| 2026-03-27 12:00 |
10:47:49.25 |
+76:15:20.0 |
HIP 53062 |
20.22 |
| 2026-03-28 00:00 |
10:47:42.10 |
+76:15:11.4 |
HIP 53062 |
20.39 |
| 2026-03-28 12:00 |
10:47:34.99 |
+76:15:02.6 |
HIP 53062 |
20.56 |
| 2026-03-29 00:00 |
10:47:27.92 |
+76:14:53.6 |
HIP 53062 |
20.74 |
| 2026-03-29 12:00 |
10:47:20.87 |
+76:14:44.4 |
HIP 53062 |
20.92 |
| 2026-03-30 00:00 |
10:47:13.87 |
+76:14:34.9 |
HIP 53062 |
21.10 |
| 2026-03-30 12:00 |
10:47:06.90 |
+76:14:25.1 |
HIP 53062 |
21.29 |
| 2026-03-31 00:00 |
10:46:59.97 |
+76:14:15.1 |
HIP 53062 |
21.48 |
| 2026-03-31 12:00 |
10:46:53.07 |
+76:14:04.9 |
HIP 53062 |
21.67 |
| 2026-04-01 00:00 |
10:46:46.21 |
+76:13:54.5 |
HIP 53062 |
21.87 |
| 2026-04-01 12:00 |
10:46:39.40 |
+76:13:43.8 |
HIP 53062 |
22.07 |
| 2026-04-02 00:00 |
10:46:32.62 |
+76:13:32.9 |
HIP 53062 |
22.27 |
| 2026-04-02 12:00 |
10:46:25.88 |
+76:13:21.7 |
HIP 53062 |
22.48 |
| 2026-04-03 00:00 |
10:46:19.18 |
+76:13:10.4 |
HIP 53062 |
22.69 |
| 2026-04-03 12:00 |
10:46:12.52 |
+76:12:58.8 |
HIP 53062 |
22.90 |
| 2026-04-04 00:00 |
10:46:05.90 |
+76:12:46.9 |
HIP 53062 |
23.11 |
| 2026-04-04 12:00 |
10:45:59.32 |
+76:12:34.9 |
HIP 53062 |
23.33 |
| 2026-04-05 00:00 |
10:45:52.79 |
+76:12:22.6 |
HIP 53062 |
23.55 |
| 2026-04-05 12:00 |
10:45:46.29 |
+76:12:10.1 |
HIP 53062 |
23.77 |
| 2026-04-06 00:00 |
10:45:39.84 |
+76:11:57.3 |
HIP 53062 |
23.99 |
| 2026-04-06 12:00 |
10:45:33.44 |
+76:11:44.4 |
HIP 53062 |
24.22 |
| 2026-04-07 00:00 |
10:45:27.07 |
+76:11:31.2 |
HIP 53062 |
24.45 |
| 2026-04-07 12:00 |
10:45:20.76 |
+76:11:17.8 |
HIP 53062 |
24.67 |
| 2026-04-08 00:00 |
10:45:14.48 |
+76:11:04.2 |
HIP 52063 |
24.83 |
| 2026-04-08 12:00 |
10:45:08.26 |
+76:10:50.3 |
HIP 52063 |
24.46 |
| 2026-04-09 00:00 |
10:45:02.08 |
+76:10:36.3 |
HIP 52063 |
24.09 |
| 2026-04-09 12:00 |
10:44:55.94 |
+76:10:22.0 |
HIP 52063 |
23.72 |
| 2026-04-10 00:00 |
10:44:49.85 |
+76:10:07.5 |
HIP 52063 |
23.36 |
| 2026-04-10 12:00 |
10:44:43.81 |
+76:09:52.8 |
HIP 52063 |
23.01 |
| 2026-04-11 00:00 |
10:44:37.82 |
+76:09:37.9 |
HIP 52063 |
22.66 |
| 2026-04-11 12:00 |
10:44:31.87 |
+76:09:22.8 |
HIP 52063 |
22.32 |
| 2026-04-12 00:00 |
10:44:25.98 |
+76:09:07.4 |
HIP 52063 |
21.98 |
| 2026-04-12 12:00 |
10:44:20.13 |
+76:08:51.9 |
HIP 52063 |
21.65 |
| 2026-04-13 00:00 |
10:44:14.33 |
+76:08:36.2 |
HIP 52063 |
21.33 |
| 2026-04-13 12:00 |
10:44:08.59 |
+76:08:20.2 |
HIP 52063 |
21.02 |
| 2026-04-14 00:00 |
10:44:02.89 |
+76:08:04.1 |
HIP 52063 |
20.71 |
| 2026-04-14 12:00 |
10:43:57.24 |
+76:07:47.7 |
HIP 52063 |
20.41 |
| 2026-04-15 00:00 |
10:43:51.65 |
+76:07:31.1 |
HIP 52063 |
20.12 |
| 2026-04-15 12:00 |
10:43:46.10 |
+76:07:14.4 |
HIP 52063 |
19.83 |
| 2026-04-16 00:00 |
10:43:40.61 |
+76:06:57.4 |
HIP 52063 |
19.56 |