메타데이터
| 항목 |
값 |
| Designation |
C/2005 K1 (Skiff) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2005-11-21T04:38:57.312960Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:49Z |
| Obs used |
616 |
| NEO |
- |
| M1 |
6.900 |
| K1 |
12.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2005-08-23.0000000 |
| e |
1.00329003 |
| q (au) |
3.692912 |
| a (au) |
-1122.454642 |
| i (deg) |
77.747578 |
| Ω (om, deg) |
106.305012 |
| ω (w, deg) |
134.938813 |
| M (ma, deg) |
-0.002364 |
밝기
산란 + 전체 선형
$$
M_a = (4.163 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
4.163 |
| 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) |
| 2026-06-01 00:00 |
04:57:57.75 |
-52:00:52.8 |
HIP 23376 |
33.40 |
| 2026-06-01 12:00 |
04:58:02.73 |
-52:00:44.7 |
HIP 23376 |
32.65 |
| 2026-06-02 00:00 |
04:58:07.70 |
-52:00:36.9 |
HIP 23376 |
31.89 |
| 2026-06-02 12:00 |
04:58:12.68 |
-52:00:29.5 |
HIP 23376 |
31.14 |
| 2026-06-03 00:00 |
04:58:17.66 |
-52:00:22.5 |
HIP 23376 |
30.39 |
| 2026-06-03 12:00 |
04:58:22.65 |
-52:00:15.8 |
HIP 23376 |
29.64 |
| 2026-06-04 00:00 |
04:58:27.63 |
-52:00:09.4 |
HIP 23376 |
28.89 |
| 2026-06-04 12:00 |
04:58:32.62 |
-52:00:03.4 |
HIP 23376 |
28.13 |
| 2026-06-05 00:00 |
04:58:37.61 |
-51:59:57.7 |
HIP 23376 |
27.38 |
| 2026-06-05 12:00 |
04:58:42.59 |
-51:59:52.4 |
HIP 23376 |
26.63 |
| 2026-06-06 00:00 |
04:58:47.58 |
-51:59:47.5 |
HIP 23376 |
25.88 |
| 2026-06-06 12:00 |
04:58:52.57 |
-51:59:42.9 |
HIP 23376 |
25.13 |
| 2026-06-07 00:00 |
04:58:57.56 |
-51:59:38.6 |
HIP 23376 |
24.38 |
| 2026-06-07 12:00 |
04:59:02.55 |
-51:59:34.7 |
HIP 23376 |
23.63 |
| 2026-06-08 00:00 |
04:59:07.54 |
-51:59:31.2 |
HIP 23376 |
22.88 |
| 2026-06-08 12:00 |
04:59:12.53 |
-51:59:28.0 |
HIP 23376 |
22.14 |
| 2026-06-09 00:00 |
04:59:17.51 |
-51:59:25.1 |
HIP 23376 |
21.39 |
| 2026-06-09 12:00 |
04:59:22.50 |
-51:59:22.6 |
HIP 23376 |
20.64 |
| 2026-06-10 00:00 |
04:59:27.48 |
-51:59:20.5 |
HIP 23376 |
19.90 |
| 2026-06-10 12:00 |
04:59:32.46 |
-51:59:18.7 |
HIP 23376 |
19.15 |
| 2026-06-11 00:00 |
04:59:37.44 |
-51:59:17.3 |
HIP 23376 |
18.41 |
| 2026-06-11 12:00 |
04:59:42.42 |
-51:59:16.2 |
HIP 23376 |
17.66 |
| 2026-06-12 00:00 |
04:59:47.39 |
-51:59:15.5 |
HIP 23376 |
16.92 |
| 2026-06-12 12:00 |
04:59:52.36 |
-51:59:15.1 |
HIP 23376 |
16.18 |
| 2026-06-13 00:00 |
04:59:57.33 |
-51:59:15.1 |
HIP 23376 |
15.44 |
| 2026-06-13 12:00 |
05:00:02.29 |
-51:59:15.4 |
HIP 23376 |
14.70 |
| 2026-06-14 00:00 |
05:00:07.25 |
-51:59:16.1 |
HIP 23376 |
13.96 |
| 2026-06-14 12:00 |
05:00:12.20 |
-51:59:17.1 |
HIP 23376 |
13.23 |
| 2026-06-15 00:00 |
05:00:17.15 |
-51:59:18.5 |
HIP 23376 |
12.49 |
| 2026-06-15 12:00 |
05:00:22.09 |
-51:59:20.3 |
HIP 23376 |
11.76 |
| 2026-06-16 00:00 |
05:00:27.03 |
-51:59:22.4 |
HIP 23376 |
11.04 |
| 2026-06-16 12:00 |
05:00:31.96 |
-51:59:24.8 |
HIP 23376 |
10.31 |
| 2026-06-17 00:00 |
05:00:36.88 |
-51:59:27.6 |
HIP 23376 |
9.59 |
| 2026-06-17 12:00 |
05:00:41.80 |
-51:59:30.8 |
HIP 23376 |
8.88 |
| 2026-06-18 00:00 |
05:00:46.71 |
-51:59:34.3 |
HIP 23376 |
8.17 |
| 2026-06-18 12:00 |
05:00:51.62 |
-51:59:38.1 |
HIP 23376 |
7.47 |
| 2026-06-19 00:00 |
05:00:56.51 |
-51:59:42.3 |
HIP 23376 |
6.78 |
| 2026-06-19 12:00 |
05:01:01.40 |
-51:59:46.9 |
HIP 23376 |
6.10 |
| 2026-06-20 00:00 |
05:01:06.28 |
-51:59:51.7 |
HIP 23376 |
5.44 |
| 2026-06-20 12:00 |
05:01:11.16 |
-51:59:57.0 |
HIP 23376 |
4.81 |
| 2026-06-21 00:00 |
05:01:16.02 |
-52:00:02.6 |
HIP 23376 |
4.21 |
| 2026-06-21 12:00 |
05:01:20.87 |
-52:00:08.5 |
HIP 23376 |
3.67 |
| 2026-06-22 00:00 |
05:01:25.72 |
-52:00:14.8 |
HIP 23376 |
3.21 |