15183+2650 STF1932AB

 
 
15h 18m 20.19s +26 50' 24.7" P.A. 266.8 sep 1.62 mag 7.32,7.41 Sp F6V+F6V dist. 35.98 pc (117.37 l.y.)
 
 
Coord 2000
15183+2650
Discov num
STF1932
Comp
AB
Coord arcsec 2000
15 18 20.19 +26 50 24.7
Date first
1830
Date last
2018
Obs
576
Pa first
274
Pa last
270
P.A. Now (θ)
266.8°
Sep first
1.6
Sep last
1.7
Sep. Now (ρ)
1.62"
Mag pri
7.32
Mag sec
7.41
delta mag (ΔM)
0.09
Spectral class
F6V+F6V (yellow-white/yellow-white)
Pri motion ra
+088
Sec motion ra
+088
Pri motion dec
+077
Sec motion dec
+077
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
15183+2650 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 15183+2650 CHR 45 Aa,Ab 1984 1984 1 66 0.3 7.10
Show 15183+2650 STF1932 AB 1830 2018 576 267 1.6 7.32 7.41 0.09 Y <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
269.9
Precise sep
1.65
Constellation
Corona Borealis
SAO
83756
HIP
74893
Tycho2
2028-00978-1
Gaia DR2
15518148736
HD
136176
ADS
9578
BD
BD+27 2477
Distance
35.98
Distance ly
117.37
last precise pa
269.9
last precise sep
1.65
 
 
ORBITAL ELEMENTS
 
 
Period (P)203.145y± 1.3 Periastron (T)1941.484y± 0.024 Semi-major axis (a)1.21a± 0.019
Eccentricity (e)0.6527± 0.0017 Inclination (i)58.56°± 0.13 Longitude of periastron (ω)51.26°± 0.24
Node (Ω)63.79°± 0.21 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 1.590 259.3
2001 1.594 259.7
2002 1.599 260.1
2003 1.603 260.5
2004 1.607 260.9
2005 1.610 261.3
2006 1.613 261.7
2007 1.615 262.1
2008 1.618 262.5
2009 1.619 262.9
2010 1.621 263.3
2011 1.622 263.6
2012 1.622 264.0
2013 1.623 264.4
2014 1.623 264.8
2015 1.622 265.2
2016 1.621 265.6
2017 1.620 266.0
2018 1.619 266.4
2019 1.617 266.8
2020 1.615 267.2
2021 1.613 267.6
2022 1.610 267.9
2023 1.608 268.3
2024 1.604 268.7
2025 1.601 269.1
2026 1.597 269.5
2027 1.593 269.9
2028 1.589 270.3
2029 1.584 270.8
2030 1.579 271.2

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






wds15183%2B2650c.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
15183+2650 STF1932 AB 2007 541 262 1.6 7.32 7.41 F6V+F6V NOD 151820.19+265024.7
15183+2650 STF1932 AB 2009 546 265 1.6 7.32 7.41 F6V+F6V NOD 151820.19+265024.7
15183+2650 STF1932 AB 2010 555 263 1.6 7.32 7.41 F6V+F6V NOD 151820.19+265024.7
15183+2650 STF1932 AB 2011 561 264 1.6 7.32 7.41 F6V F6V NOD 151820.19+265024.7
15183+2650 STF1932 AB 2013 562 264 1.6 7.32 7.41 F6V F6V NOD 151820.19+265024.7
15183+2650 STF1932 AB 2014 549 264 1.6 7.32 7.41 F6V F6V NOD 151820.19+265024.7
15183+2650 STF1932 AB 2015 554 266 1.6 7.32 7.41 F6V+F6V NO 151820.19+265024.7
15183+2650 STF1932 AB 2017 568 266 1.6 7.32 7.41 F6V+F6V NO 151820.19+265024.7
15183+2650 STF1932 AB 2018 574 267 1.6 7.32 7.41 F6V+F6V NO 151820.19+265024.7

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