메타데이터
| 항목 |
값 |
| Designation |
C/2011 K1 (Schwartz-Holvorcem) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2011-04-21T22:15:47.076480Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:50Z |
| Obs used |
114 |
| NEO |
- |
| M1 |
11.700 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2011-06-03.0000000 |
| e |
1.00702797 |
| q (au) |
3.376629 |
| a (au) |
-480.455780 |
| i (deg) |
122.624865 |
| Ω (om, deg) |
70.737393 |
| ω (w, deg) |
167.097081 |
| M (ma, deg) |
0.003938 |
밝기
산란 + 전체 선형
$$
M_a = (13.629 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.629 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.980 |
| 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 |
06:39:57.91 |
-18:38:16.4 |
HIP 31919 |
27.82 |
| 2026-03-26 12:00 |
06:39:57.39 |
-18:37:34.6 |
HIP 31919 |
28.52 |
| 2026-03-27 00:00 |
06:39:56.91 |
-18:36:52.8 |
HIP 31811 |
28.67 |
| 2026-03-27 12:00 |
06:39:56.46 |
-18:36:11.1 |
HIP 31811 |
28.00 |
| 2026-03-28 00:00 |
06:39:56.05 |
-18:35:29.4 |
HIP 31811 |
27.34 |
| 2026-03-28 12:00 |
06:39:55.67 |
-18:34:47.7 |
HIP 31811 |
26.68 |
| 2026-03-29 00:00 |
06:39:55.32 |
-18:34:06.1 |
HIP 31811 |
26.03 |
| 2026-03-29 12:00 |
06:39:55.01 |
-18:33:24.5 |
HIP 31811 |
25.38 |
| 2026-03-30 00:00 |
06:39:54.74 |
-18:32:42.9 |
HIP 31811 |
24.75 |
| 2026-03-30 12:00 |
06:39:54.50 |
-18:32:01.4 |
HIP 31811 |
24.12 |
| 2026-03-31 00:00 |
06:39:54.29 |
-18:31:20.0 |
HIP 31811 |
23.50 |
| 2026-03-31 12:00 |
06:39:54.12 |
-18:30:38.6 |
HIP 31811 |
22.89 |
| 2026-04-01 00:00 |
06:39:53.98 |
-18:29:57.3 |
HIP 31811 |
22.29 |
| 2026-04-01 12:00 |
06:39:53.87 |
-18:29:16.0 |
HIP 31811 |
21.69 |
| 2026-04-02 00:00 |
06:39:53.80 |
-18:28:34.8 |
HIP 31811 |
21.12 |
| 2026-04-02 12:00 |
06:39:53.77 |
-18:27:53.6 |
HIP 31811 |
20.55 |
| 2026-04-03 00:00 |
06:39:53.77 |
-18:27:12.6 |
HIP 31811 |
19.99 |
| 2026-04-03 12:00 |
06:39:53.80 |
-18:26:31.5 |
HIP 31811 |
19.45 |
| 2026-04-04 00:00 |
06:39:53.86 |
-18:25:50.6 |
HIP 31811 |
18.93 |
| 2026-04-04 12:00 |
06:39:53.96 |
-18:25:09.7 |
HIP 31811 |
18.42 |
| 2026-04-05 00:00 |
06:39:54.10 |
-18:24:28.9 |
HIP 31811 |
17.93 |
| 2026-04-05 12:00 |
06:39:54.27 |
-18:23:48.2 |
HIP 31811 |
17.46 |
| 2026-04-06 00:00 |
06:39:54.47 |
-18:23:07.5 |
HIP 31811 |
17.01 |
| 2026-04-06 12:00 |
06:39:54.70 |
-18:22:27.0 |
HIP 31811 |
16.58 |
| 2026-04-07 00:00 |
06:39:54.97 |
-18:21:46.5 |
HIP 31811 |
16.18 |
| 2026-04-07 12:00 |
06:39:55.27 |
-18:21:06.1 |
HIP 31811 |
15.80 |
| 2026-04-08 00:00 |
06:39:55.61 |
-18:20:25.8 |
HIP 31811 |
15.45 |
| 2026-04-08 12:00 |
06:39:55.97 |
-18:19:45.6 |
HIP 31811 |
15.13 |
| 2026-04-09 00:00 |
06:39:56.38 |
-18:19:05.5 |
HIP 31811 |
14.84 |
| 2026-04-09 12:00 |
06:39:56.81 |
-18:18:25.5 |
HIP 31811 |
14.58 |
| 2026-04-10 00:00 |
06:39:57.28 |
-18:17:45.6 |
HIP 31811 |
14.36 |
| 2026-04-10 12:00 |
06:39:57.78 |
-18:17:05.8 |
HIP 31811 |
14.18 |
| 2026-04-11 00:00 |
06:39:58.31 |
-18:16:26.1 |
HIP 31811 |
14.03 |
| 2026-04-11 12:00 |
06:39:58.88 |
-18:15:46.5 |
HIP 31811 |
13.92 |
| 2026-04-12 00:00 |
06:39:59.48 |
-18:15:07.0 |
HIP 31811 |
13.85 |
| 2026-04-12 12:00 |
06:40:00.11 |
-18:14:27.7 |
HIP 31811 |
13.83 |
| 2026-04-13 00:00 |
06:40:00.78 |
-18:13:48.4 |
HIP 31811 |
13.84 |
| 2026-04-13 12:00 |
06:40:01.47 |
-18:13:09.3 |
HIP 31811 |
13.89 |
| 2026-04-14 00:00 |
06:40:02.20 |
-18:12:30.3 |
HIP 31811 |
13.99 |
| 2026-04-14 12:00 |
06:40:02.97 |
-18:11:51.4 |
HIP 31811 |
14.12 |
| 2026-04-15 00:00 |
06:40:03.76 |
-18:11:12.6 |
HIP 31811 |
14.29 |
| 2026-04-15 12:00 |
06:40:04.59 |
-18:10:34.0 |
HIP 31811 |
14.50 |
| 2026-04-16 00:00 |
06:40:05.45 |
-18:09:55.5 |
HIP 31811 |
14.74 |