15432+1340 BU  619

 
 
15h 43m 10.53s +13 40' 03.7" P.A. 358 sep 0.6 mag 6.95,7.94 Sp G4IV dist. 173.31 pc (565.34 l.y.)
 
 
Coord 2000
15432+1340
Discov num
BU  619
Comp
Coord arcsec 2000
15 43 10.53 +13 40 03.7
Date first
1878
Date last
2012
Obs
159
Pa first
357
Pa last
358
P.A. Now (θ)
358°
Sep first
0.4
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
6.95
Mag sec
7.94
delta mag (ΔM)
0.99
Spectral class
G4IV (yellow)
Pri motion ra
-016
Sec motion ra
-016
Pri motion dec
-030
Sec motion dec
-030
Notes
N L (See Notes, Linear solution)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
358.3
Precise sep
0.647
Constellation
Serpens
SAO
101699
HIP
76985
Tycho2
0942-00653-1
HD
140438
HR
5850
ADS
9758
BD
BD+14 2922
Distance
173.31
Distance ly
565.34
last precise pa
358.3
last precise sep
0.647
 
 
ORBITAL ELEMENTS
 
 
Period (P)75.2y Periastron (T)1993.46y Semi-major axis (a)0.132a
Eccentricity (e)0.938 Inclination (i)76.5° Longitude of periastron (ω)258.3°
Node (Ω)29.7° Note Grade9(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.071 48.9
2001 0.075 50.2
2002 0.077 51.3
2003 0.080 52.4
2004 0.082 53.5
2005 0.083 54.5
2006 0.085 55.4
2007 0.086 56.3
2008 0.087 57.2
2009 0.088 58.1
2010 0.089 59.0
2011 0.089 59.8
2012 0.089 60.7
2013 0.090 61.5
2014 0.090 62.4
2015 0.090 63.2
2016 0.090 64.0
2017 0.089 64.9
2018 0.089 65.7
2019 0.089 66.6
2020 0.088 67.5
2021 0.088 68.3
2022 0.087 69.2
2023 0.086 70.1
2024 0.085 71.0
2025 0.085 72.0
2026 0.084 72.9
2027 0.083 73.9
2028 0.082 74.9
2029 0.081 75.9
2030 0.079 77.0

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

grafico orbita





wds15432%2B1340f.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
15432+1340 BU 619 2005 173 1 0.7 6.95 7.94 G4IV N D 154310.53+134003.7
15432+1340 BU 619 2009 175 1 0.7 6.95 7.94 G4IV N D 154310.53+134003.7
15432+1340 BU 619 2012 159 358 0.6 6.95 7.94 G4IV NLD 154310.53+134003.7

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