메타데이터
| 항목 |
값 |
| Designation |
C/2013 K1 (Christensen) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2013-05-30T03:59:46.325760Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:36Z |
| Obs used |
52 |
| NEO |
- |
| M1 |
18.400 |
| K1 |
9.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2013-05-31.0000000 |
| e |
0.98811567 |
| q (au) |
0.948263 |
| a (au) |
79.791095 |
| i (deg) |
42.341521 |
| Ω (om, deg) |
125.908709 |
| ω (w, deg) |
171.332563 |
| M (ma, deg) |
0.001153 |
밝기
산란 + 전체 선형
$$
M_a = (17.867 + 5.957\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
17.867 |
| n |
5.957 |
| gf |
1.000 |
| gb |
-1.000 |
| 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 |
06:52:08.59 |
+05:12:22.6 |
HIP 32997 |
6.08 |
| 2026-06-01 12:00 |
06:52:12.09 |
+05:12:29.2 |
HIP 32997 |
5.46 |
| 2026-06-02 00:00 |
06:52:15.61 |
+05:12:35.7 |
HIP 32997 |
4.90 |
| 2026-06-02 12:00 |
06:52:19.14 |
+05:12:42.0 |
HIP 32997 |
4.45 |
| 2026-06-03 00:00 |
06:52:22.69 |
+05:12:48.2 |
HIP 32997 |
4.14 |
| 2026-06-03 12:00 |
06:52:26.26 |
+05:12:54.3 |
HIP 32997 |
4.00 |
| 2026-06-04 00:00 |
06:52:29.83 |
+05:13:00.1 |
HIP 32997 |
4.06 |
| 2026-06-04 12:00 |
06:52:33.43 |
+05:13:05.8 |
HIP 32997 |
4.31 |
| 2026-06-05 00:00 |
06:52:37.03 |
+05:13:11.4 |
HIP 32997 |
4.71 |
| 2026-06-05 12:00 |
06:52:40.66 |
+05:13:16.8 |
HIP 32997 |
5.24 |
| 2026-06-06 00:00 |
06:52:44.29 |
+05:13:22.0 |
HIP 32997 |
5.87 |
| 2026-06-06 12:00 |
06:52:47.94 |
+05:13:27.1 |
HIP 32997 |
6.56 |
| 2026-06-07 00:00 |
06:52:51.60 |
+05:13:32.1 |
HIP 32997 |
7.30 |
| 2026-06-07 12:00 |
06:52:55.28 |
+05:13:36.8 |
HIP 32997 |
8.08 |
| 2026-06-08 00:00 |
06:52:58.97 |
+05:13:41.5 |
HIP 32997 |
8.89 |
| 2026-06-08 12:00 |
06:53:02.67 |
+05:13:45.9 |
HIP 32997 |
9.72 |
| 2026-06-09 00:00 |
06:53:06.39 |
+05:13:50.2 |
HIP 32997 |
10.56 |
| 2026-06-09 12:00 |
06:53:10.12 |
+05:13:54.4 |
HIP 32997 |
11.42 |
| 2026-06-10 00:00 |
06:53:13.86 |
+05:13:58.4 |
HIP 32997 |
12.30 |
| 2026-06-10 12:00 |
06:53:17.61 |
+05:14:02.2 |
HIP 32997 |
13.18 |
| 2026-06-11 00:00 |
06:53:21.37 |
+05:14:05.9 |
HIP 32997 |
14.07 |
| 2026-06-11 12:00 |
06:53:25.15 |
+05:14:09.4 |
HIP 32997 |
14.97 |
| 2026-06-12 00:00 |
06:53:28.93 |
+05:14:12.7 |
HIP 33174 |
14.45 |
| 2026-06-12 12:00 |
06:53:32.73 |
+05:14:15.9 |
HIP 33174 |
13.69 |
| 2026-06-13 00:00 |
06:53:36.54 |
+05:14:18.9 |
HIP 33174 |
12.94 |
| 2026-06-13 12:00 |
06:53:40.36 |
+05:14:21.8 |
HIP 33174 |
12.22 |
| 2026-06-14 00:00 |
06:53:44.19 |
+05:14:24.5 |
HIP 33174 |
11.53 |
| 2026-06-14 12:00 |
06:53:48.03 |
+05:14:27.1 |
HIP 33174 |
10.88 |
| 2026-06-15 00:00 |
06:53:51.88 |
+05:14:29.5 |
HIP 33174 |
10.27 |
| 2026-06-15 12:00 |
06:53:55.74 |
+05:14:31.7 |
HIP 33174 |
9.71 |
| 2026-06-16 00:00 |
06:53:59.60 |
+05:14:33.8 |
HIP 33174 |
9.22 |
| 2026-06-16 12:00 |
06:54:03.48 |
+05:14:35.7 |
HIP 33174 |
8.80 |
| 2026-06-17 00:00 |
06:54:07.37 |
+05:14:37.5 |
HIP 33174 |
8.47 |
| 2026-06-17 12:00 |
06:54:11.26 |
+05:14:39.1 |
HIP 33174 |
8.23 |
| 2026-06-18 00:00 |
06:54:15.16 |
+05:14:40.5 |
HIP 33174 |
8.10 |
| 2026-06-18 12:00 |
06:54:19.07 |
+05:14:41.8 |
HIP 33174 |
8.09 |
| 2026-06-19 00:00 |
06:54:22.99 |
+05:14:42.9 |
HIP 33174 |
8.19 |
| 2026-06-19 12:00 |
06:54:26.91 |
+05:14:43.9 |
HIP 33174 |
8.40 |
| 2026-06-20 00:00 |
06:54:30.84 |
+05:14:44.7 |
HIP 33174 |
8.72 |
| 2026-06-20 12:00 |
06:54:34.78 |
+05:14:45.3 |
HIP 33174 |
9.12 |
| 2026-06-21 00:00 |
06:54:38.73 |
+05:14:45.8 |
HIP 33174 |
9.61 |
| 2026-06-21 12:00 |
06:54:42.68 |
+05:14:46.2 |
HIP 33174 |
10.17 |
| 2026-06-22 00:00 |
06:54:46.64 |
+05:14:46.3 |
HIP 33174 |
10.79 |