메타데이터
| 항목 |
값 |
| Designation |
C/1950 K1 (Minkowski) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1951-01-15T01:00:02.396160Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:09Z |
| Obs used |
32 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1951-02-12.0000000 |
| e |
1.00121746 |
| q (au) |
2.572332 |
| a (au) |
-2112.865342 |
| i (deg) |
144.155299 |
| Ω (om, deg) |
38.890420 |
| ω (w, deg) |
192.467845 |
| M (ma, deg) |
0.000284 |
밝기
산란 + 전체 선형
$$
M_a = (5.948 + 2.647\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.948 |
| n |
2.647 |
| gf |
0.952 |
| gb |
-0.765 |
| k |
0.984 |
| δ90 |
1.000 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 1950-06-06 |
1951-01-14 |
+2.1156 |
-1.155 |
| 1951-01-19 |
1951-06-30 |
+15.8103 |
-6.727 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
02:52:20.26 |
+12:44:52.1 |
HIP 13557 |
35.39 |
| 2026-07-29 12:00 |
02:52:20.43 |
+12:44:51.9 |
HIP 13557 |
35.35 |
| 2026-07-30 00:00 |
02:52:20.58 |
+12:44:51.7 |
HIP 13557 |
35.32 |
| 2026-07-30 12:00 |
02:52:20.72 |
+12:44:51.5 |
HIP 13557 |
35.29 |
| 2026-07-31 00:00 |
02:52:20.85 |
+12:44:51.1 |
HIP 13557 |
35.26 |
| 2026-07-31 12:00 |
02:52:20.97 |
+12:44:50.8 |
HIP 13557 |
35.23 |
| 2026-08-01 00:00 |
02:52:21.09 |
+12:44:50.4 |
HIP 13557 |
35.21 |
| 2026-08-01 12:00 |
02:52:21.19 |
+12:44:49.9 |
HIP 13557 |
35.19 |
| 2026-08-02 00:00 |
02:52:21.28 |
+12:44:49.4 |
HIP 13557 |
35.17 |
| 2026-08-02 12:00 |
02:52:21.37 |
+12:44:48.9 |
HIP 13557 |
35.15 |
| 2026-08-03 00:00 |
02:52:21.44 |
+12:44:48.3 |
HIP 13557 |
35.14 |
| 2026-08-03 12:00 |
02:52:21.51 |
+12:44:47.7 |
HIP 13557 |
35.13 |
| 2026-08-04 00:00 |
02:52:21.56 |
+12:44:47.0 |
HIP 13557 |
35.12 |
| 2026-08-04 12:00 |
02:52:21.60 |
+12:44:46.3 |
HIP 13557 |
35.11 |
| 2026-08-05 00:00 |
02:52:21.64 |
+12:44:45.6 |
HIP 13557 |
35.11 |
| 2026-08-05 12:00 |
02:52:21.66 |
+12:44:44.8 |
HIP 13557 |
35.11 |
| 2026-08-06 00:00 |
02:52:21.68 |
+12:44:43.9 |
HIP 13557 |
35.11 |
| 2026-08-06 12:00 |
02:52:21.68 |
+12:44:43.0 |
HIP 13557 |
35.11 |
| 2026-08-07 00:00 |
02:52:21.68 |
+12:44:42.1 |
HIP 13557 |
35.12 |
| 2026-08-07 12:00 |
02:52:21.66 |
+12:44:41.1 |
HIP 13557 |
35.13 |
| 2026-08-08 00:00 |
02:52:21.64 |
+12:44:40.1 |
HIP 13557 |
35.14 |
| 2026-08-08 12:00 |
02:52:21.60 |
+12:44:39.0 |
HIP 13557 |
35.15 |
| 2026-08-09 00:00 |
02:52:21.56 |
+12:44:37.9 |
HIP 13557 |
35.17 |
| 2026-08-09 12:00 |
02:52:21.50 |
+12:44:36.7 |
HIP 13557 |
35.19 |
| 2026-08-10 00:00 |
02:52:21.44 |
+12:44:35.5 |
HIP 13557 |
35.21 |
| 2026-08-10 12:00 |
02:52:21.36 |
+12:44:34.3 |
HIP 13557 |
35.23 |
| 2026-08-11 00:00 |
02:52:21.28 |
+12:44:33.0 |
HIP 13557 |
35.26 |
| 2026-08-11 12:00 |
02:52:21.18 |
+12:44:31.6 |
HIP 13557 |
35.29 |
| 2026-08-12 00:00 |
02:52:21.08 |
+12:44:30.3 |
HIP 13557 |
35.32 |
| 2026-08-12 12:00 |
02:52:20.96 |
+12:44:28.8 |
HIP 13557 |
35.36 |
| 2026-08-13 00:00 |
02:52:20.84 |
+12:44:27.4 |
HIP 13557 |
35.39 |
| 2026-08-13 12:00 |
02:52:20.70 |
+12:44:25.9 |
HIP 13557 |
35.43 |
| 2026-08-14 00:00 |
02:52:20.56 |
+12:44:24.3 |
HIP 13557 |
35.48 |
| 2026-08-14 12:00 |
02:52:20.40 |
+12:44:22.7 |
HIP 13557 |
35.52 |
| 2026-08-15 00:00 |
02:52:20.24 |
+12:44:21.1 |
HIP 13557 |
35.57 |
| 2026-08-15 12:00 |
02:52:20.06 |
+12:44:19.4 |
HIP 13557 |
35.62 |
| 2026-08-16 00:00 |
02:52:19.88 |
+12:44:17.6 |
HIP 13557 |
35.67 |
| 2026-08-16 12:00 |
02:52:19.68 |
+12:44:15.9 |
HIP 13557 |
35.72 |
| 2026-08-17 00:00 |
02:52:19.48 |
+12:44:14.1 |
HIP 13557 |
35.78 |
| 2026-08-17 12:00 |
02:52:19.26 |
+12:44:12.2 |
HIP 13557 |
35.84 |
| 2026-08-18 00:00 |
02:52:19.04 |
+12:44:10.3 |
HIP 13201 |
35.83 |
| 2026-08-18 12:00 |
02:52:18.80 |
+12:44:08.4 |
HIP 13201 |
35.77 |
| 2026-08-19 00:00 |
02:52:18.56 |
+12:44:06.4 |
HIP 13201 |
35.71 |