22280+5742 KR 60 AB (DO Cep)
22h 27m 59.20s +57° 41' 43.8" P.A. 207.00 sep 2.1 mag 9.93,11.41 Sp M3.5+M4.5 dist. 4 pc (13.05 l.y.)
Coord 2000 |
22280+5742 |
|
Discov num |
KR 60 |
|
Comp |
AB |
|
Coord arcsec 2000 |
22 27 59.20 +57 41 43.8 |
|
Date first |
1890 |
|
Date last |
2020 |
|
Obs |
317 |
|
Pa first |
179 |
|
Pa last |
206.5 |
|
P.A. Now (θ) |
188.7° |
|
Sep first |
2.3 |
|
Sep last |
2.052 |
|
Sep. Now (ρ) |
2.364" |
|
Mag pri |
9.93 |
|
Mag sec |
11.41 |
|
delta mag (ΔM) |
1.48 |
|
Spectral class |
M3.5+M4.5 (red/red) |
|
Pri motion ra |
-806 |
|
Sec motion ra |
-713 |
|
Pri motion dec |
-399 |
|
Sec motion dec |
-321 |
|
Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.135 (< 0.3, Physical double)
This double is physical.
22280+5742 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
DO Cep |
|
22 27 59 +57 41 44 |
KR 60 AB |
2020 |
317 |
207 |
2.1 |
9.93 |
11.41 |
1.48 |
Y |
<=== |
Show |
|
|
22 27 59 +57 41 44 |
KR 60 AC |
2016 |
83 |
62 |
139.8 |
9.93 |
10.53 |
0.60 |
|
|
Show |
|
|
22 27 59 +57 41 44 |
KR 60 AD |
2016 |
10 |
56 |
119.3 |
9.93 |
14.30 |
4.37 |
|
|
Show |
|
|
22 27 59 +57 41 44 |
KR 60 AE |
2016 |
17 |
77 |
163.0 |
9.93 |
13.33 |
3.40 |
|
|
Show |
|
|
22 27 59 +57 41 44 |
KR 60 AF |
2016 |
16 |
46 |
71.9 |
9.93 |
14.43 |
4.50 |
|
|
Show |
|
|
22 27 59 +57 41 44 |
KR 60 AG |
2016 |
6 |
114 |
68.4 |
9.93 |
15.14 |
5.21 |
|
|
Show |
|
|
22 27 59 +57 41 44 |
KR 60 AH |
2016 |
8 |
267 |
50.2 |
9.93 |
13.02 |
3.09 |
|
|
Show |
|
|
22 27 59 +57 41 44 |
KR 60 AI |
2016 |
18 |
119 |
238.2 |
9.93 |
8.31 |
1.62 |
|
|
Show |
|
|
22 27 59 +57 41 44 |
HEL 4 AJ |
2016 |
10 |
113 |
32.5 |
9.93 |
15.70 |
5.77 |
|
|
Show |
|
|
22 27 59 +57 41 44 |
HZE 5 AK |
2006 |
1 |
0 |
7.2 |
4.78 |
16.00 |
11.22 |
|
|
Show |
|
|
22 27 59 +57 41 44 |
FYM 118 AL |
2016 |
5 |
13 |
107.0 |
9.93 |
15.44 |
5.51 |
|
|
Show |
|
|
22 27 59 +57 41 44 |
FYM 118 AM |
2016 |
5 |
356 |
78.4 |
9.93 |
15.60 |
5.67 |
|
|
Show |
|
|
22 27 59 +57 41 44 |
FYM 118 AO |
2016 |
5 |
135 |
83.0 |
9.93 |
15.17 |
5.24 |
|
|
Show |
|
|
22 27 59 +57 41 44 |
FYM 118 AR |
2016 |
5 |
113 |
113.7 |
9.93 |
15.20 |
5.27 |
|
|
Show |
|
|
22 27 59 +57 41 44 |
FYM 118 AS |
2016 |
5 |
264 |
13.2 |
9.93 |
15.70 |
5.77 |
|
|
Show |
|
|
22 27 59 +57 41 44 |
FYM 118 AU |
2016 |
5 |
103 |
137.6 |
9.93 |
15.20 |
5.27 |
|
|
Show |
|
|
22 27 60 +57 41 44 |
KR 60 BC |
2016 |
60 |
62 |
141.2 |
11.41 |
10.53 |
0.88 |
|
|
Show |
|
|
22 27 60 +57 41 44 |
HEL 4 BJ |
2016 |
7 |
112 |
33.9 |
11.41 |
15.70 |
4.29 |
|
|
Show |
|
|
22 28 13 +57 42 44 |
FYM 118 CD |
2016 |
8 |
272 |
24.5 |
10.53 |
14.30 |
3.77 |
|
|
Show |
|
|
22 28 13 +57 42 44 |
KR 60 CE |
2016 |
19 |
130 |
45.9 |
10.53 |
13.33 |
2.80 |
Y |
|
Show |
|
|
22 28 13 +57 42 44 |
FYM 118 CN |
2016 |
9 |
52 |
42.1 |
10.53 |
14.92 |
4.39 |
|
|
Show |
|
|
22 28 13 +57 42 44 |
FYM 118 CP |
2016 |
9 |
320 |
46.5 |
10.53 |
14.79 |
4.26 |
|
|
Show |
|
|
22 28 18 +57 42 15 |
FYM 118 EQ |
2016 |
9 |
206 |
14.2 |
13.33 |
15.70 |
2.37 |
|
|
20-fold system
20 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Var name |
DO Cep |
|
Constellation |
Cepheus |
|
HIP |
110893 |
|
Tycho2 |
3991-00092-1 |
|
HD |
239960 |
|
ADS |
15972 |
|
GL |
Gl 860A |
|
BD |
BD+56 2783 |
|
Distance |
4 |
|
Distance ly |
13.05 |
|
ORBITAL ELEMENTS
Period (P) | 44.5814y | ± 0.0345 |
Periastron (T) | 1970.2342y | ± 0.0389 |
Semi-major axis (a) | 2.40113a | ± 0.01042 |
Eccentricity (e) | 0.40847 | ± 0.00223 |
Inclination (i) | 165.701° | ± 1.277 |
Longitude of periastron (ω) | 207.481° | ± 5.577 |
Node (Ω) | 150.665° | ± 5.42 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2013 | |
Grade | 1 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
94.6 |
3.039 |
2001 |
90.0 |
2.954 |
2002 |
85.2 |
2.861 |
2003 |
79.9 |
2.758 |
2004 |
74.3 |
2.647 |
2005 |
68.2 |
2.528 |
2006 |
61.4 |
2.402 |
2007 |
53.8 |
2.269 |
2008 |
45.3 |
2.132 |
2009 |
35.6 |
1.994 |
2010 |
24.5 |
1.856 |
2011 |
11.6 |
1.725 |
2012 |
356.7 |
1.605 |
2013 |
339.6 |
1.506 |
2014 |
320.5 |
1.437 |
2015 |
300.1 |
1.409 |
2016 |
279.6 |
1.431 |
2017 |
260.3 |
1.500 |
2018 |
243.2 |
1.611 |
2019 |
228.5 |
1.748 |
2020 |
216.1 |
1.900 |
2021 |
205.6 |
2.057 |
2022 |
196.5 |
2.213 |
2023 |
188.7 |
2.364 |
2024 |
181.7 |
2.505 |
2025 |
175.5 |
2.638 |
2026 |
169.8 |
2.759 |
2027 |
164.6 |
2.869 |
2028 |
159.8 |
2.968 |
2029 |
155.3 |
3.056 |
2030 |
151.0 |
3.132 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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