메타데이터
| 항목 |
값 |
| Designation |
C/2014 U3 (Kowalski) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2014-09-02T20:08:26.016000Z |
| Orbit solution date (soln_date, UTC) |
2022-08-01T03:23:53Z |
| Obs used |
51 |
| NEO |
- |
| M1 |
5.200 |
| K1 |
29.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2014-10-13.0000000 |
| e |
0.99332244 |
| q (au) |
2.555822 |
| a (au) |
382.748050 |
| i (deg) |
152.993159 |
| Ω (om, deg) |
163.558521 |
| ω (w, deg) |
51.065952 |
| M (ma, deg) |
0.005286 |
밝기
산란 + 전체 선형
$$
M_a = (10.351 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.351 |
| n |
6.000 |
| 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) |
| 2026-05-12 00:00 |
22:26:10.80 |
-17:11:56.4 |
HIP 110813 |
13.08 |
| 2026-05-12 12:00 |
22:26:11.55 |
-17:12:03.3 |
HIP 110813 |
12.87 |
| 2026-05-13 00:00 |
22:26:12.26 |
-17:12:10.3 |
HIP 110813 |
12.68 |
| 2026-05-13 12:00 |
22:26:12.95 |
-17:12:17.6 |
HIP 110813 |
12.49 |
| 2026-05-14 00:00 |
22:26:13.59 |
-17:12:25.1 |
HIP 110813 |
12.30 |
| 2026-05-14 12:00 |
22:26:14.20 |
-17:12:32.9 |
HIP 110813 |
12.13 |
| 2026-05-15 00:00 |
22:26:14.78 |
-17:12:40.8 |
HIP 110813 |
11.96 |
| 2026-05-15 12:00 |
22:26:15.31 |
-17:12:49.0 |
HIP 110813 |
11.80 |
| 2026-05-16 00:00 |
22:26:15.82 |
-17:12:57.4 |
HIP 110813 |
11.65 |
| 2026-05-16 12:00 |
22:26:16.28 |
-17:13:06.0 |
HIP 110813 |
11.51 |
| 2026-05-17 00:00 |
22:26:16.71 |
-17:13:14.8 |
HIP 110813 |
11.37 |
| 2026-05-17 12:00 |
22:26:17.11 |
-17:13:23.9 |
HIP 110813 |
11.25 |
| 2026-05-18 00:00 |
22:26:17.47 |
-17:13:33.1 |
HIP 110813 |
11.13 |
| 2026-05-18 12:00 |
22:26:17.79 |
-17:13:42.6 |
HIP 110813 |
11.03 |
| 2026-05-19 00:00 |
22:26:18.07 |
-17:13:52.3 |
HIP 110813 |
10.93 |
| 2026-05-19 12:00 |
22:26:18.32 |
-17:14:02.2 |
HIP 110813 |
10.84 |
| 2026-05-20 00:00 |
22:26:18.53 |
-17:14:12.3 |
HIP 110813 |
10.77 |
| 2026-05-20 12:00 |
22:26:18.71 |
-17:14:22.7 |
HIP 110813 |
10.70 |
| 2026-05-21 00:00 |
22:26:18.85 |
-17:14:33.2 |
HIP 110813 |
10.64 |
| 2026-05-21 12:00 |
22:26:18.95 |
-17:14:44.0 |
HIP 110813 |
10.60 |
| 2026-05-22 00:00 |
22:26:19.02 |
-17:14:55.0 |
HIP 110813 |
10.57 |
| 2026-05-22 12:00 |
22:26:19.05 |
-17:15:06.2 |
HIP 110813 |
10.55 |
| 2026-05-23 00:00 |
22:26:19.04 |
-17:15:17.6 |
HIP 110813 |
10.54 |
| 2026-05-23 12:00 |
22:26:19.00 |
-17:15:29.3 |
HIP 110813 |
10.54 |
| 2026-05-24 00:00 |
22:26:18.92 |
-17:15:41.1 |
HIP 110813 |
10.55 |
| 2026-05-24 12:00 |
22:26:18.80 |
-17:15:53.2 |
HIP 110813 |
10.58 |
| 2026-05-25 00:00 |
22:26:18.65 |
-17:16:05.4 |
HIP 110813 |
10.62 |
| 2026-05-25 12:00 |
22:26:18.46 |
-17:16:17.9 |
HIP 110813 |
10.67 |
| 2026-05-26 00:00 |
22:26:18.23 |
-17:16:30.6 |
HIP 110813 |
10.74 |
| 2026-05-26 12:00 |
22:26:17.97 |
-17:16:43.5 |
HIP 110813 |
10.82 |
| 2026-05-27 00:00 |
22:26:17.67 |
-17:16:56.6 |
HIP 110813 |
10.91 |
| 2026-05-27 12:00 |
22:26:17.33 |
-17:17:09.9 |
HIP 110813 |
11.02 |
| 2026-05-28 00:00 |
22:26:16.96 |
-17:17:23.4 |
HIP 110813 |
11.13 |
| 2026-05-28 12:00 |
22:26:16.55 |
-17:17:37.2 |
HIP 110813 |
11.26 |
| 2026-05-29 00:00 |
22:26:16.11 |
-17:17:51.1 |
HIP 110813 |
11.41 |
| 2026-05-29 12:00 |
22:26:15.62 |
-17:18:05.2 |
HIP 110813 |
11.57 |
| 2026-05-30 00:00 |
22:26:15.10 |
-17:18:19.6 |
HIP 110813 |
11.74 |
| 2026-05-30 12:00 |
22:26:14.55 |
-17:18:34.1 |
HIP 110813 |
11.92 |
| 2026-05-31 00:00 |
22:26:13.95 |
-17:18:48.9 |
HIP 110813 |
12.12 |
| 2026-05-31 12:00 |
22:26:13.32 |
-17:19:03.9 |
HIP 110813 |
12.33 |
| 2026-06-01 00:00 |
22:26:12.66 |
-17:19:19.0 |
HIP 110813 |
12.55 |
| 2026-06-01 12:00 |
22:26:11.95 |
-17:19:34.4 |
HIP 110806 |
12.58 |
| 2026-06-02 00:00 |
22:26:11.21 |
-17:19:49.9 |
HIP 110806 |
12.62 |