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) |
| 2026-03-26 00:00 |
06:48:04.18 |
+04:37:42.6 |
HIP 32581 |
3.45 |
| 2026-03-26 12:00 |
06:48:03.90 |
+04:38:04.3 |
HIP 32581 |
3.17 |
| 2026-03-27 00:00 |
06:48:03.65 |
+04:38:25.9 |
HIP 32581 |
2.91 |
| 2026-03-27 12:00 |
06:48:03.43 |
+04:38:47.5 |
HIP 32581 |
2.68 |
| 2026-03-28 00:00 |
06:48:03.25 |
+04:39:09.1 |
HIP 32581 |
2.50 |
| 2026-03-28 12:00 |
06:48:03.11 |
+04:39:30.6 |
HIP 32581 |
2.36 |
| 2026-03-29 00:00 |
06:48:03.00 |
+04:39:52.1 |
HIP 32581 |
2.28 |
| 2026-03-29 12:00 |
06:48:02.93 |
+04:40:13.5 |
HIP 32581 |
2.27 |
| 2026-03-30 00:00 |
06:48:02.90 |
+04:40:34.9 |
HIP 32581 |
2.32 |
| 2026-03-30 12:00 |
06:48:02.90 |
+04:40:56.2 |
HIP 32581 |
2.43 |
| 2026-03-31 00:00 |
06:48:02.93 |
+04:41:17.4 |
HIP 32581 |
2.60 |
| 2026-03-31 12:00 |
06:48:03.00 |
+04:41:38.6 |
HIP 32581 |
2.80 |
| 2026-04-01 00:00 |
06:48:03.11 |
+04:41:59.8 |
HIP 32581 |
3.04 |
| 2026-04-01 12:00 |
06:48:03.25 |
+04:42:20.9 |
HIP 32581 |
3.30 |
| 2026-04-02 00:00 |
06:48:03.42 |
+04:42:41.9 |
HIP 32581 |
3.59 |
| 2026-04-02 12:00 |
06:48:03.64 |
+04:43:02.9 |
HIP 32581 |
3.89 |
| 2026-04-03 00:00 |
06:48:03.88 |
+04:43:23.8 |
HIP 32581 |
4.21 |
| 2026-04-03 12:00 |
06:48:04.16 |
+04:43:44.7 |
HIP 32581 |
4.53 |
| 2026-04-04 00:00 |
06:48:04.48 |
+04:44:05.5 |
HIP 32581 |
4.86 |
| 2026-04-04 12:00 |
06:48:04.83 |
+04:44:26.2 |
HIP 32581 |
5.20 |
| 2026-04-05 00:00 |
06:48:05.22 |
+04:44:46.9 |
HIP 32581 |
5.54 |
| 2026-04-05 12:00 |
06:48:05.64 |
+04:45:07.5 |
HIP 32581 |
5.89 |
| 2026-04-06 00:00 |
06:48:06.10 |
+04:45:28.0 |
HIP 32581 |
6.25 |
| 2026-04-06 12:00 |
06:48:06.59 |
+04:45:48.5 |
HIP 32581 |
6.61 |
| 2026-04-07 00:00 |
06:48:07.12 |
+04:46:08.9 |
HIP 32581 |
6.97 |
| 2026-04-07 12:00 |
06:48:07.68 |
+04:46:29.2 |
HIP 32581 |
7.33 |
| 2026-04-08 00:00 |
06:48:08.27 |
+04:46:49.5 |
HIP 32581 |
7.70 |
| 2026-04-08 12:00 |
06:48:08.90 |
+04:47:09.6 |
HIP 32581 |
8.07 |
| 2026-04-09 00:00 |
06:48:09.57 |
+04:47:29.7 |
HIP 32581 |
8.44 |
| 2026-04-09 12:00 |
06:48:10.27 |
+04:47:49.8 |
HIP 32581 |
8.82 |
| 2026-04-10 00:00 |
06:48:11.00 |
+04:48:09.7 |
HIP 32581 |
9.20 |
| 2026-04-10 12:00 |
06:48:11.77 |
+04:48:29.6 |
HIP 32581 |
9.58 |
| 2026-04-11 00:00 |
06:48:12.57 |
+04:48:49.4 |
HIP 32581 |
9.97 |
| 2026-04-11 12:00 |
06:48:13.41 |
+04:49:09.1 |
HIP 32581 |
10.35 |
| 2026-04-12 00:00 |
06:48:14.28 |
+04:49:28.7 |
HIP 32581 |
10.74 |
| 2026-04-12 12:00 |
06:48:15.18 |
+04:49:48.2 |
HIP 32581 |
11.14 |
| 2026-04-13 00:00 |
06:48:16.12 |
+04:50:07.7 |
HIP 32581 |
11.54 |
| 2026-04-13 12:00 |
06:48:17.09 |
+04:50:27.1 |
HIP 32581 |
11.93 |
| 2026-04-14 00:00 |
06:48:18.10 |
+04:50:46.3 |
HIP 32581 |
12.34 |
| 2026-04-14 12:00 |
06:48:19.14 |
+04:51:05.5 |
HIP 32581 |
12.74 |
| 2026-04-15 00:00 |
06:48:20.21 |
+04:51:24.6 |
HIP 32581 |
13.15 |
| 2026-04-15 12:00 |
06:48:21.32 |
+04:51:43.6 |
HIP 32581 |
13.56 |
| 2026-04-16 00:00 |
06:48:22.46 |
+04:52:02.5 |
HIP 32581 |
13.98 |