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) |
| 2026-07-29 00:00 |
06:49:54.94 |
-17:21:15.7 |
HIP 32801 |
6.40 |
| 2026-07-29 12:00 |
06:49:58.13 |
-17:21:30.2 |
HIP 32801 |
5.96 |
| 2026-07-30 00:00 |
06:50:01.30 |
-17:21:44.9 |
HIP 32801 |
5.60 |
| 2026-07-30 12:00 |
06:50:04.46 |
-17:22:00.0 |
HIP 32801 |
5.35 |
| 2026-07-31 00:00 |
06:50:07.61 |
-17:22:15.2 |
HIP 32801 |
5.21 |
| 2026-07-31 12:00 |
06:50:10.74 |
-17:22:30.7 |
HIP 32801 |
5.19 |
| 2026-08-01 00:00 |
06:50:13.86 |
-17:22:46.5 |
HIP 32801 |
5.30 |
| 2026-08-01 12:00 |
06:50:16.97 |
-17:23:02.5 |
HIP 32801 |
5.53 |
| 2026-08-02 00:00 |
06:50:20.06 |
-17:23:18.8 |
HIP 32801 |
5.85 |
| 2026-08-02 12:00 |
06:50:23.13 |
-17:23:35.3 |
HIP 32801 |
6.26 |
| 2026-08-03 00:00 |
06:50:26.20 |
-17:23:52.0 |
HIP 32801 |
6.75 |
| 2026-08-03 12:00 |
06:50:29.24 |
-17:24:09.0 |
HIP 32801 |
7.28 |
| 2026-08-04 00:00 |
06:50:32.28 |
-17:24:26.2 |
HIP 32849 |
7.38 |
| 2026-08-04 12:00 |
06:50:35.29 |
-17:24:43.7 |
HIP 32849 |
7.29 |
| 2026-08-05 00:00 |
06:50:38.30 |
-17:25:01.4 |
HIP 32849 |
7.28 |
| 2026-08-05 12:00 |
06:50:41.28 |
-17:25:19.3 |
HIP 32849 |
7.36 |
| 2026-08-06 00:00 |
06:50:44.25 |
-17:25:37.5 |
HIP 32849 |
7.53 |
| 2026-08-06 12:00 |
06:50:47.21 |
-17:25:55.9 |
HIP 32849 |
7.77 |
| 2026-08-07 00:00 |
06:50:50.14 |
-17:26:14.6 |
HIP 32849 |
8.08 |
| 2026-08-07 12:00 |
06:50:53.07 |
-17:26:33.4 |
HIP 32849 |
8.45 |
| 2026-08-08 00:00 |
06:50:55.97 |
-17:26:52.5 |
HIP 32849 |
8.88 |
| 2026-08-08 12:00 |
06:50:58.86 |
-17:27:11.9 |
HIP 32849 |
9.35 |
| 2026-08-09 00:00 |
06:51:01.73 |
-17:27:31.5 |
HIP 32849 |
9.86 |
| 2026-08-09 12:00 |
06:51:04.58 |
-17:27:51.3 |
HIP 32849 |
10.40 |
| 2026-08-10 00:00 |
06:51:07.42 |
-17:28:11.3 |
HIP 32849 |
10.97 |
| 2026-08-10 12:00 |
06:51:10.23 |
-17:28:31.5 |
HIP 32849 |
11.56 |
| 2026-08-11 00:00 |
06:51:13.03 |
-17:28:52.0 |
HIP 32849 |
12.17 |
| 2026-08-11 12:00 |
06:51:15.81 |
-17:29:12.7 |
HIP 32849 |
12.80 |
| 2026-08-12 00:00 |
06:51:18.57 |
-17:29:33.6 |
HIP 32849 |
13.44 |
| 2026-08-12 12:00 |
06:51:21.32 |
-17:29:54.8 |
HIP 32849 |
14.09 |
| 2026-08-13 00:00 |
06:51:24.04 |
-17:30:16.1 |
HIP 32849 |
14.75 |
| 2026-08-13 12:00 |
06:51:26.75 |
-17:30:37.7 |
HIP 32849 |
15.42 |
| 2026-08-14 00:00 |
06:51:29.43 |
-17:30:59.5 |
HIP 32849 |
16.09 |
| 2026-08-14 12:00 |
06:51:32.10 |
-17:31:21.5 |
HIP 32849 |
16.77 |
| 2026-08-15 00:00 |
06:51:34.74 |
-17:31:43.7 |
HIP 32849 |
17.45 |
| 2026-08-15 12:00 |
06:51:37.37 |
-17:32:06.1 |
HIP 32963 |
17.97 |
| 2026-08-16 00:00 |
06:51:39.97 |
-17:32:28.7 |
HIP 32963 |
18.19 |
| 2026-08-16 12:00 |
06:51:42.55 |
-17:32:51.5 |
HIP 32963 |
18.44 |
| 2026-08-17 00:00 |
06:51:45.12 |
-17:33:14.6 |
HIP 32963 |
18.72 |
| 2026-08-17 12:00 |
06:51:47.66 |
-17:33:37.8 |
HIP 32963 |
19.03 |
| 2026-08-18 00:00 |
06:51:50.18 |
-17:34:01.2 |
HIP 32963 |
19.36 |
| 2026-08-18 12:00 |
06:51:52.68 |
-17:34:24.9 |
HIP 32963 |
19.71 |
| 2026-08-19 00:00 |
06:51:55.16 |
-17:34:48.7 |
HIP 32963 |
20.09 |