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Doubles in session


Current system
19531-1436
CHR 90
V505 Sgr


Nearby doubles
21' : 19521-1422
KPP4175

34' : 19509-1424
TDT1799

37' : 19511-1458
BRT 600

45' : 19504-1456
HDS2824

69' : 19539-1544
GWP2905AB

74' : 19480-1434
HDS2814

77' : 19496-1340
BRT2767

77' : 19583-1436
BRT 601

89' : 19563-1321
STF2602

89' : 19470-1430
BRT 599

90' : 19583-1357
GRE 5

92' : 19480-1342
DRS 66

97' : 19467-1503
OCC9190

99' : 19557-1305
HLD 153

101' : 19510-1301
LEO 46

105' : 19524-1620
OCC9191

109' : 19539-1248
UC 4048

110' : 19456-1428
CVN 106AB

110' : 19462-1520
HDS2809

116' : 19473-1555
RST4049

116' : 19589-1318
BU 1476AB

119' : 19452-1507
HDS2804

119' : 19539-1237
J 2288

121' : 19468-1555
OCC9062

121' : 19468-1556
AHD 17

121' : 19510-1240
GWP2901



Selections
Full WDS
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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.

19531-1436 CHR 90 (V505 Sgr)

 
 
19h 53m 06.39s -14° 36' 11.1" P.A. 182.00 sep 0.4 mag 9.25,6.61 Sp A2V+G5IV dist. 119.05 pc (388.34 l.y.)
 
 
Coord 2000 19531-1436 Discov num CHR  90 Comp Coord arcsec 2000 19 53 06.39 -14 36 11.1
Date first 1985 Date last 2021 Obs 27
Pa first 190 Pa last 182.3 P.A. Now (θ) 182.3°
Sep first 0.3 Sep last 0.422 Sep. Now (ρ) 0.422"
Mag pri 9.25 Mag sec 6.61 delta mag (ΔM) 2.64 Spectral class A2V+G5IV (white/yellow)
Pri motion ra -001 Sec motion ra
Pri motion dec -058 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V505 Sgr Constellation Sagittarius SAO 163080 HIP 97849
Tycho2 5737-00439-1 Gaia DR2 6878492245986475904 HD 187949 HR 7571
GC 27525 BD BD-14 5578 Distance 119.05 Distance ly 388.34
 
 
ORBITAL ELEMENTS
 
 
Period (P)343.2y Periastron (T)1998.85y Semi-major axis (a)0.678a
Eccentricity (e)0.716 Inclination (i)126.5° Longitude of periastron (ω)73.5°
Node (Ω)3.3° Notesn ReferenceTok2019c
Equinox Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 283.5 0.117
2001 268.7 0.117
2002 254.9 0.124
2003 243.0 0.136
2004 233.2 0.151
2005 225.3 0.168
2006 218.9 0.186
2007 213.6 0.204
2008 209.2 0.223
2009 205.5 0.241
2010 202.3 0.259
2011 199.5 0.277
2012 197.0 0.293
2013 194.8 0.310
2014 192.8 0.325
2015 191.0 0.341
2016 189.4 0.355
2017 187.8 0.369
2018 186.4 0.383
2019 185.1 0.396
2020 183.9 0.409
2021 182.7 0.421
2022 181.6 0.433
2023 180.6 0.444
2024 179.6 0.455
2025 178.6 0.466
2026 177.7 0.476
2027 176.9 0.486
2028 176.0 0.496
2029 175.2 0.505
2030 174.5 0.514


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


 
  


wds19531-1436g.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 19531-1436 CHR 90 (V505 Sgr) : NOTES
 
 
discov_num notes refcode
CHR 90 This is a third component in the eclipsing (Algol-type) and
spectroscopic binary V505 Sgr, P = 1.18d.
Cvetkovic et al. (2010) derive both short- and long-period solutions Cve2010b
(29.14 and 94.24y, respectively). The 29y orbit does not agree with
the light-time effect, so was rejected in favor of the 94y solution.
Assuming a parallax of 8.40 +/- 0.57 (van Leeuwen 2007, A&A 474, 653),
this solutuion yields a mass sum of 7.0 +/- 1.4 Msun.
 
 
REFERENCES
 
 
refcode metd author reference
Cve2010b orb - Cvetkovic, Z., Pavlovic, R., & Ninkovic, S. 2010AJ....140...25C
Cve2010b AJ 140, 25, 2010
Tok2019c St j Tokovinin, A., Mason, B.D., Mendez, R.A., Horch, E.P. & Briceno, C. 2019AJ....158...48T
Tok2019c +orb AJ 158, 48, 2019
 
 
DISCOVERER
 
 
idgroup discov author
1 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19531-1436 CHR 90 2006 18 216 0.2 9.25 6.61 A0V+F8IV NOD 195306.39-143611.1
19531-1436 CHR 90 2009 19 204 0.2 9.25 6.61 A0V+F8IV NOD 195306.39-143611.1
19531-1436 CHR 90 2010 24 200 0.3 9.25 6.61 A0V+F8IV NOD 195306.39-143611.1
19531-1436 CHR 90 2015 25 10 0.4 9.25 6.61 A0V+F8IV NO 195306.39-143611.1
19531-1436 CHR 90 2018 26 186 0.4 9.25 6.61 A0V+F8IV NO 195306.39-143611.1
19531-1436 CHR 90 2021 27 182 0.4 9.25 6.61 A2V+G5IV NO 195306.39-143611.1

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

 
 
WDS 19531-1436 CHR 90 (V505 Sgr) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19531-1436 CHR 90 (V505 Sgr) : MEASURES
 
 
No records found.

 
 
WDS 19531-1436 (V505 Sgr) : VIRTUAL EYEPIECE
 
 

19531-1436 CHR 90A mag 9.25 Sp A2V 19531-1436 CHR 90B sep 0.4 P.A. 182.20 mag 6.61 Sp G5IV virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 19531-1436 (V505 Sgr) : ALADIN DSS IMAGE @ 19h 53m 06.39s -14° 36' 11.1"
 
 
 
 
WDS 19531-1436 CHR 90 (V505 Sgr) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19531-1436 CHR 90 distance=0' 19521-1422 KPP4175 distance=21' 19509-1424 TDT1799 distance=34' 19511-1458 BRT 600 distance=37' 19504-1456 HDS2824 distance=45' 19539-1544 GWP2905AB distance=69' 19539-1544 GWP2906AC distance=69' 19480-1434 HDS2814 distance=74' 19496-1340 BRT2767 distance=77' 19583-1436 BRT 601 distance=77' 19563-1321 STF2602 distance=89' 19470-1430 BRT 599 distance=89' 19583-1357 GRE 5 distance=90' 19480-1342 DRS 66 distance=92' 19467-1503 OCC9190 distance=97' 19557-1305 HLD 153 distance=99' 19510-1301 LEO 46 distance=101' 19524-1620 OCC9191 distance=105' 19539-1248 UC 4048 distance=109' 19456-1428 CVN 106AB distance=110' 19456-1428 CVN 106AC distance=110' 19462-1520 HDS2809 distance=110' 19473-1555 RST4049 distance=116' 19589-1318 BU 1476AB distance=116' 19589-1318 D 31AC distance=116' 19452-1507 HDS2804 distance=119' 19539-1237 J 2288 distance=119' 19468-1555 OCC9062 distance=121' 19468-1556 AHD 17 distance=121' 19510-1240 GWP2901 distance=121' 19457-1337 GWP2889 distance=123' 19538-1639 HU 267 distance=123' 19565-1240 LDS 858 distance=127' 19460-1318 GWP2892 distance=130' 20008-1543 GWP2916 distance=130' 19445-1518 NSN 144 distance=131' 19450-1339 BRT2765 distance=132' 19580-1245 RST4051 distance=133' 19548-1223 HJ 602 distance=135' 19573-1234 LDS4824 distance=137' 19524-1653 ARA 300 distance=138' 19453-1314 STF2565 distance=140' 19435-1459 BRT 598 distance=143' 19529-1700 RST3242 distance=144' 19436-1528 BUP 197 distance=148' 20033-1444 FOX 247 distance=149' 19455-1616 ARA 123 distance=150' 19446-1607 HO 113 distance=154' 19525-1202 LDS4821 distance=156' 19456-1632 GWP2888 distance=160' 19436-1602 GWP2885 distance=162' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 19531-1436 CHR 90 182 0.4
Show 19521-1422 KPP4175 169 5.9 21
Show 19509-1424 TDT1799 246 0.5 34
Show 19511-1458 BRT 600 7 4.5 37
Show 19504-1456 HDS2824 332 14.0 45
Show 19539-1544 GWP2905 AB 164 46.2 69
Show 19539-1544 GWP2906 AC 323 14.3 69
Show 19480-1434 HDS2814 138 18.3 74
Show 19496-1340 BRT2767 54 5.5 77
Show 19583-1436 BRT 601 15 5.0 77
Show 19563-1321 STF2602 147 12.3 89
Show 19470-1430 BRT 599 221 4.3 89
Show 19583-1357 GRE 5 36 4.3 90
Show 19480-1342 DRS 66 190 4.6 92
Show 19467-1503 OCC9190 -1 0.0 97
Show 19557-1305 HLD 153 106 1.9 99
Show 19510-1301 LEO 46 112 4.2 101
Show 19524-1620 OCC9191 -1 0.0 105
Show 19539-1248 UC 4048 202 21.9 109
Show 19456-1428 CVN 106 AB 206 4.4 110
Show 19456-1428 CVN 106 AC 307 6.1 110
Show 19462-1520 HDS2809 72 0.3 110
Show 19473-1555 RST4049 42 0.5 116
Show 19589-1318 BU 1476 AB 169 14.9 116
Show 19589-1318 D 31 AC 193 132.9 116
Show 19452-1507 HDS2804 278 0.2 119
Show 19539-1237 J 2288 100 4.6 119
Show 19468-1555 OCC9062 132 0.5 121
Show 19468-1556 AHD 17 353 25.6 121
Show 19510-1240 GWP2901 183 151.1 121
Show 19457-1337 GWP2889 32 238.9 123
Show 19538-1639 HU 267 347 1.8 123
Show 19565-1240 LDS 858 157 19.1 127
Show 19460-1318 GWP2892 173 218.7 130
Show 20008-1543 GWP2916 69 103.9 130
Show 19445-1518 NSN 144 28 4.1 131
Show 19450-1339 BRT2765 121 4.6 132
Show 19580-1245 RST4051 128 1.8 133
Show 19548-1223 HJ 602 309 6.7 135
Show 19573-1234 LDS4824 77 62.7 137
Show 19524-1653 ARA 300 355 14.5 138
Show 19453-1314 STF2565 40 5.5 140
Show 19435-1459 BRT 598 235 3.6 143
Show 19529-1700 RST3242 91 1.2 144
Show 19436-1528 BUP 197 124 58.6 148
Show 20033-1444 FOX 247 158 5.0 149
Show 19455-1616 ARA 123 334 5.5 150
Show 19446-1607 HO 113 11 4.2 154
Show 19525-1202 LDS4821 350 10.1 156
Show 19456-1632 GWP2888 49 370.3 160
Show 19436-1602 GWP2885 80 729.9 162

 
 
WDS 19531-1436 : COMPONENTS
 
 
  A
B pa=182.2°
sep=0.42"
 
 
19531-1436 A
 
 
Componente originario normalizzato AB Name V505 Sgr Coord arcsec 2000 195306.39-143611.1 Mag 9.25
Spectral class A2V (white) PmRA -1.00 PmDE -58.0 SAO 163080
HIP 97849 HD 187949 HR 7571 GC 27525
BD BD-14 5578
SAO
SAO 163080 DelFlag RA1950 PmRA1950 -0.0005
DE1950 PmDE1950 -0.042 Vmag 6.4 SpType A2
Double code Source 70 CatNum 27525 DM BD-14 5578
DMcomp BDsup HD 187949 M HD 0
GC 27525 RA1950rad 5.1936019 DE1950rad -0.25713471 PmRA2000 -0.0003
PmDE2000 -0.042
Hipparcos
Catalog H HIP 97849 Proxy H RAhms 19 53 06.39
DEdms -14 36 11.1 Vmag 6.47 VarFlag 3 R Vmag H
RAdeg 298.277 DEdeg -14.6031 AstroRef * Plx 8.58
CCDM 19531-1436 N CCDM M Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP BA
Theta 350 Rho 0.234 HD 187949 BD BD-14 5578
CD CP Dm number -14 5578 VIred 0.1
SpType A1V R SpType Coord arcsec 2000 195306.39-143611.1
Hipparcos 2
HIP 97849 Sn 55 So 3 Nc 2
RArad 5.2059088834 DErad -0.2548718402 Plx 8.4 PmRA -0.14
PmDE -50.48 E RArad 0.55 E DErad 0.29 E Plx 0.57
E pmRA 0.82 E pmDE 0.41 Hpmag 6.522 E Hpmag 0.0046
SHp 0.056 VA 1 BV 0.149 E BV 0.008
VI 0.16
CCDM
Ccdm 19531-1436 RComp Comp A Note1
Note2 Discov num DRAs 0.41 DDEs -11.5
R dRAs 81 Year Theta Rho
Obs 2 Vmag 6.5 Sp A0 PmNote @
PmRA -3 PmDE -41 Dm number -14 5578 Cat1 BD
Name2 163080 Cat2 SAO HD 187949 M HD
ADS BDS M ADS BDS N N IDS W IDS 19531-1436A
HIC 97849
 
 
19531-1436 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 195306.39-143611.5 Mag 6.61 Spectral class G5IV (yellow)
Tycho2 5737-00439-1 Calc delta mag 2.64 Calc coord yes
Tycho2
Tycho2 5737-00439-1 Pflag RAmdeg 298.27660299 DEmdeg -14.60321523
PmRA -3.9 PmDE -55.7 E RAmdeg 3 E DEmdeg 4
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.55 EpDEm 1991.23
Num 17 Q RAmdeg 1.0 Q DEmdeg 1.8 Q pmRA 0.9
Q pmDE 1.7 BTmag 6.664 E BTmag 0.014 VTmag 6.503
E VTmag 0.010 Prox 999 TYC T HIP 97849
CCDM AB RAdeg 298.27661194 DEdeg -14.60308667 EpRA 1990 1.84
EpDE 1990 1.70 E RAdeg 3.4 E DEdeg 3.8 Posflg P
Corr -0.4
CCDM
Ccdm 19531-1436 RComp Comp B Note1
Note2 Discov num CHR 90 DRAs DDEs
R dRAs Year 1992 Theta 172 Rho 0.2
Obs 6 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS W IDS 19531-1436B
HIC 97849