13577+5200 A  1614

 
 
13h 57m 40.26s +51 59' 37.2" P.A. 298.40 sep 1.4 mag 8.99,9.13 Sp G5 dist. 52.85 pc (172.4 l.y.)
 
 
Coord 2000
13577+5200
Discov num
A  1614
Comp
Coord arcsec 2000
13 57 40.26 +51 59 37.2
Date first
1907
Date last
2017
Obs
110
Pa first
182
Pa last
300
P.A. Now (θ)
298.4°
Sep first
0.3
Sep last
1.4
Sep. Now (ρ)
1.4"
Mag pri
8.99
Mag sec
9.13
delta mag (ΔM)
0.14
Spectral class
G5 (yellow)
Pri motion ra
+236
Sec motion ra
+236
Pri motion dec
-007
Sec motion dec
-007
Notes
O (Orbital solution)
Visually invisible, K-band or other infrared star This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
299.8
Precise sep
1.414
Constellation
Ursa Major
SAO
28945
HIP
68193
Tycho2
3470-00743-1
Gaia DR2
66743033088
HD
121995
ADS
9071
BD
BD+52 1757
Distance
52.85
Distance ly
172.4
last precise pa
299.8
last precise sep
1.414
 
 
ORBITAL ELEMENTS
 
 
Period (P)205y± 20 Periastron (T)1911.6y± 2.3 Semi-major axis (a)0.857a± 0.028
Eccentricity (e)0.717± 0.025 Inclination (i)139.5°± 9.2 Longitude of periastron (ω)150°± 11
Node (Ω)276.8°± 5.5 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 1.342 305.6
2001 1.347 305.3
2002 1.352 304.9
2003 1.356 304.5
2004 1.361 304.1
2005 1.365 303.8
2006 1.368 303.4
2007 1.372 303.0
2008 1.375 302.7
2009 1.379 302.3
2010 1.382 302.0
2011 1.384 301.6
2012 1.387 301.2
2013 1.389 300.9
2014 1.392 300.5
2015 1.393 300.2
2016 1.395 299.8
2017 1.397 299.5
2018 1.398 299.1
2019 1.399 298.8
2020 1.400 298.4
2021 1.401 298.1
2022 1.402 297.7
2023 1.402 297.4
2024 1.402 297.0
2025 1.402 296.7
2026 1.401 296.3
2027 1.401 296.0
2028 1.400 295.6
2029 1.399 295.3
2030 1.398 295.0

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
 
grafico orbita






wds13577%2B5200a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13577+5200 A 1614 2006 97 303 1.3 8.99 9.13 G5 NOD 135740.26+515937.2
13577+5200 A 1614 2010 99 301 1.4 8.99 9.13 G5 NOD 135740.26+515937.2
13577+5200 A 1614 2013 103 121 1.4 8.99 9.13 G5 NOD 135740.26+515937.2
13577+5200 A 1614 2015 103 300 1.4 8.99 9.13 G5 O 135740.26+515937.2
13577+5200 A 1614 2017 106 300 1.4 8.99 9.13 G5 O 135740.26+515937.2

If you need more information about this double, apply for a data request form to the WDS.