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Doubles in session


Current system
15277+0606
STF1944


Nearby doubles
23' : 15286+0610
HJ 2782AB

28' : 15295+0609
OSO 63

32' : 15256+0558
HJ 2780

36' : 15299+0552
GAU 14

38' : 15296+0541
SLW1099

44' : 15276+0522
STF1943

47' : 15306+0625
GWP2528

48' : 15289+0649
BRT2160

54' : 15242+0616
SLW1089

61' : 15263+0703
CVR 786

73' : 15315+0521
J 3294

75' : 15288+0719
J 443

82' : 15313+0707
UC 3019

83' : 15223+0626
SKF 11

87' : 15329+0531
STF1953

88' : 15263+0731
BAR9008

92' : 15274+0738
KPP 344

93' : 15298+0439
HDS2180

97' : 15322+0716
GWP2529

98' : 15224+0704
GWP2517

101' : 15327+0714
UC 3026

105' : 15323+0724
BAR9009

106' : 15212+0523
HDS2159

107' : 15226+0720
TDS9498

109' : 15263+0752
HDS2170

111' : 15333+0454
SKF2213



Selections
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Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

15277+0606 STF1944

 
 
15h 27m 42.14s +06° 06' 04.5" P.A. 291.50 sep 0.6 mag 8.32,8.79 Sp F8 dist. 196.08 pc (639.61 l.y.)
 
 
Coord 2000
15277+0606
 Discov num
STF1944
 Comp
Coord arcsec 2000
15 27 42.14 +06 06 04.5
Date first
1832
 Date last
2019
 Obs
134
Pa first
342
 Pa last
293
 P.A. Now (θ)
291.5°
Sep first
1.3
 Sep last
0.7
 Sep. Now (ρ)
0.59"
Mag pri
8.32
 Mag sec
8.79
 delta mag (ΔM)
0.47
 Spectral class
F8 (yellow-white)
Pri motion ra
-002
 Sec motion ra
-002
Pri motion dec
-036
 Sec motion dec
-036
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
292.8
 Precise sep
0.68
 Constellation
Serpens
 HIP
75682
Tycho2
0349-00765-1
 Gaia DR2
1162496434113614848
 HD
137761
 ADS
9647
BD
BD+06 3048
 Distance
196.08
 Distance ly
639.61
 last precise pa
292.8
last precise sep
0.68
 
 
ORBITAL ELEMENTS
 
 
Period (P)1030y Periastron (T)2089.3y Semi-major axis (a)1.131a
Eccentricity (e)0.5 Inclination (i)126.6° Longitude of periastron (ω)294.8°
Node (Ω)142.6° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 0.730 302.7
2001 0.724 302.3
2002 0.717 301.8
2003 0.711 301.4
2004 0.705 300.9
2005 0.698 300.4
2006 0.692 300.0
2007 0.685 299.5
2008 0.679 299.0
2009 0.672 298.5
2010 0.666 297.9
2011 0.659 297.4
2012 0.653 296.9
2013 0.646 296.3
2014 0.640 295.8
2015 0.633 295.2
2016 0.626 294.6
2017 0.620 294.0
2018 0.613 293.4
2019 0.606 292.8
2020 0.599 292.2
2021 0.593 291.5
2022 0.586 290.9
2023 0.579 290.2
2024 0.572 289.5
2025 0.566 288.8
2026 0.559 288.0
2027 0.552 287.3
2028 0.545 286.5
2029 0.539 285.7
2030 0.532 284.9


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


 
  


wds15277%2B0606a.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
15277+0606 STF1944 2007 129 298 0.7 8.32 8.79 F8 D 152742.14+060604.5
15277+0606 STF1944 2010 132 298 0.7 8.32 8.79 F8 D 152742.14+060604.5
15277+0606 STF1944 2013 129 295 0.7 8.32 8.79 F8 OD 152742.14+060604.5
15277+0606 STF1944 2017 130 293 0.7 8.32 8.79 F8 O 152742.14+060604.5
15277+0606 STF1944 2018 131 293 0.6 8.32 8.79 F8 O 152742.14+060604.5
15277+0606 STF1944 2019 134 293 0.7 8.32 8.79 F8 O 152742.14+060604.5

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