메타데이터
| 항목 |
값 |
| Designation |
C/1946 U1 (Bester) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1947-02-07T08:36:00.273600Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:07Z |
| Obs used |
34 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1947-01-12.0000000 |
| e |
1.00061189 |
| q (au) |
2.407675 |
| a (au) |
-3934.834500 |
| i (deg) |
108.175807 |
| Ω (om, deg) |
35.557431 |
| ω (w, deg) |
348.621875 |
| M (ma, deg) |
-0.000105 |
밝기
산란 + 전체 선형
$$
M_a = (1.950 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
1.950 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.739 |
| 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) |
| 2026-06-01 00:00 |
15:22:18.32 |
+10:13:55.4 |
HIP 75194 |
17.11 |
| 2026-06-01 12:00 |
15:22:17.21 |
+10:13:56.3 |
HIP 75194 |
17.02 |
| 2026-06-02 00:00 |
15:22:16.11 |
+10:13:57.2 |
HIP 75194 |
16.93 |
| 2026-06-02 12:00 |
15:22:15.01 |
+10:13:58.0 |
HIP 75194 |
16.84 |
| 2026-06-03 00:00 |
15:22:13.91 |
+10:13:58.7 |
HIP 75194 |
16.77 |
| 2026-06-03 12:00 |
15:22:12.81 |
+10:13:59.3 |
HIP 75194 |
16.69 |
| 2026-06-04 00:00 |
15:22:11.72 |
+10:13:59.8 |
HIP 75194 |
16.63 |
| 2026-06-04 12:00 |
15:22:10.63 |
+10:14:00.3 |
HIP 75194 |
16.56 |
| 2026-06-05 00:00 |
15:22:09.55 |
+10:14:00.7 |
HIP 75194 |
16.51 |
| 2026-06-05 12:00 |
15:22:08.47 |
+10:14:01.0 |
HIP 75194 |
16.46 |
| 2026-06-06 00:00 |
15:22:07.39 |
+10:14:01.2 |
HIP 75194 |
16.41 |
| 2026-06-06 12:00 |
15:22:06.32 |
+10:14:01.4 |
HIP 75194 |
16.37 |
| 2026-06-07 00:00 |
15:22:05.25 |
+10:14:01.5 |
HIP 75194 |
16.34 |
| 2026-06-07 12:00 |
15:22:04.18 |
+10:14:01.5 |
HIP 75194 |
16.31 |
| 2026-06-08 00:00 |
15:22:03.12 |
+10:14:01.4 |
HIP 75194 |
16.29 |
| 2026-06-08 12:00 |
15:22:02.06 |
+10:14:01.2 |
HIP 75194 |
16.27 |
| 2026-06-09 00:00 |
15:22:01.01 |
+10:14:01.0 |
HIP 75194 |
16.26 |
| 2026-06-09 12:00 |
15:21:59.96 |
+10:14:00.7 |
HIP 75194 |
16.25 |
| 2026-06-10 00:00 |
15:21:58.91 |
+10:14:00.3 |
HIP 75128 |
16.07 |
| 2026-06-10 12:00 |
15:21:57.87 |
+10:13:59.8 |
HIP 75128 |
15.86 |
| 2026-06-11 00:00 |
15:21:56.83 |
+10:13:59.3 |
HIP 75128 |
15.66 |
| 2026-06-11 12:00 |
15:21:55.80 |
+10:13:58.6 |
HIP 75128 |
15.46 |
| 2026-06-12 00:00 |
15:21:54.77 |
+10:13:57.9 |
HIP 75128 |
15.26 |
| 2026-06-12 12:00 |
15:21:53.75 |
+10:13:57.2 |
HIP 75128 |
15.06 |
| 2026-06-13 00:00 |
15:21:52.73 |
+10:13:56.3 |
HIP 75128 |
14.87 |
| 2026-06-13 12:00 |
15:21:51.72 |
+10:13:55.3 |
HIP 75128 |
14.67 |
| 2026-06-14 00:00 |
15:21:50.71 |
+10:13:54.3 |
HIP 75128 |
14.48 |
| 2026-06-14 12:00 |
15:21:49.70 |
+10:13:53.2 |
HIP 75128 |
14.29 |
| 2026-06-15 00:00 |
15:21:48.70 |
+10:13:52.1 |
HIP 75128 |
14.10 |
| 2026-06-15 12:00 |
15:21:47.71 |
+10:13:50.8 |
HIP 75128 |
13.91 |
| 2026-06-16 00:00 |
15:21:46.72 |
+10:13:49.5 |
HIP 75128 |
13.73 |
| 2026-06-16 12:00 |
15:21:45.74 |
+10:13:48.1 |
HIP 75128 |
13.54 |
| 2026-06-17 00:00 |
15:21:44.76 |
+10:13:46.6 |
HIP 75128 |
13.36 |
| 2026-06-17 12:00 |
15:21:43.79 |
+10:13:45.0 |
HIP 75128 |
13.18 |
| 2026-06-18 00:00 |
15:21:42.82 |
+10:13:43.4 |
HIP 75128 |
13.01 |
| 2026-06-18 12:00 |
15:21:41.86 |
+10:13:41.7 |
HIP 75128 |
12.83 |
| 2026-06-19 00:00 |
15:21:40.90 |
+10:13:39.9 |
HIP 75128 |
12.65 |
| 2026-06-19 12:00 |
15:21:39.95 |
+10:13:38.0 |
HIP 75128 |
12.48 |
| 2026-06-20 00:00 |
15:21:39.00 |
+10:13:36.0 |
HIP 75128 |
12.31 |
| 2026-06-20 12:00 |
15:21:38.06 |
+10:13:34.0 |
HIP 75128 |
12.14 |
| 2026-06-21 00:00 |
15:21:37.13 |
+10:13:31.9 |
HIP 75128 |
11.98 |
| 2026-06-21 12:00 |
15:21:36.20 |
+10:13:29.7 |
HIP 75128 |
11.81 |
| 2026-06-22 00:00 |
15:21:35.28 |
+10:13:27.5 |
HIP 75128 |
11.65 |