stampa
Login

Less is more. Filter out doubles you can't observe!
Register here


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
16171+5516
BLA 3
CR Dra


Nearby doubles
23' : 16147+5526
SKF 279

23' : 16177+5454
TDS 808

54' : 16194+5606
STI2338

62' : 16243+5520
SKF 242

65' : 16132+5422
TDS9800

66' : 16187+5412
CVR1662

67' : 16195+5620
CVR 184

68' : 16128+5613
SLW1167

68' : 16238+5441
TDS9878

70' : 16103+5439
ES 967

71' : 16122+5613
SLW1166

78' : 16255+5547
UC 3167

88' : 16225+5402
TDS9868

89' : 16271+5457
CVR 821

91' : 16140+5350
LDS4655

92' : 16081+5605
STI2331

93' : 16254+5418
BWL 43

98' : 16065+5441
MLB 135

100' : 16055+5504
CVR 811

100' : 16055+5511
TOI4045

102' : 16065+5604
YSC 110

110' : 16276+5415
ES 630

114' : 16248+5649
STI2340

116' : 16051+5426
ES 743

116' : 16306+5521
STI2342

119' : 16243+5658
KPP3997



Selections
Full WDS
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.

16171+5516 BLA 3 (CR Dra)

 
 
16h 17m 05.38s +55° 16' 09.0" P.A. 9.00 sep 0.1 mag 10.20,11.90 Sp M1.5Ve dist. 20.53 pc (66.97 l.y.)
 
 
Coord 2000 16171+5516 Discov num BLA   3 Comp Coord arcsec 2000 16 17 05.38 +55 16 09.0
Date first 1986 Date last 2019 Obs 15
Pa first 36 Pa last 8.5 P.A. Now (θ) 25.3°
Sep first 0.1 Sep last 0.097 Sep. Now (ρ) 0.105"
Mag pri 10.20 Mag sec 11.90 delta mag (ΔM) 1.7 Spectral class M1.5Ve (red)
Pri motion ra +088 Sec motion ra
Pri motion dec -431 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name CR Dra Constellation Draco HIP 79796 Tycho2 3880-02179-1
GL Gl 616.2 BD BD+55 1823 Distance 20.53 Distance ly 66.97
 
 
ORBITAL ELEMENTS
 
 
Period (P)4.04y± 0.005 Periastron (T)2005.72y± 0.005 Semi-major axis (a)0.148a± 0.002
Eccentricity (e)0.17± 0.002 Inclination (i)119.5°± 1 Longitude of periastron (ω)299.9°± 2
Node (Ω)63.5°± 1.5 Notesn ReferenceTam2008
Equinox2000 Last observation2007 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 264.6 0.144
2001 220.5 0.115
2002 73.8 0.121
2003 5.3 0.090
2004 266.5 0.141
2005 223.3 0.120
2006 76.5 0.117
2007 9.8 0.093
2008 268.4 0.138
2009 225.8 0.125
2010 79.3 0.113
2011 14.1 0.096
2012 270.5 0.134
2013 228.1 0.130
2014 82.4 0.108
2015 18.1 0.099
2016 272.6 0.131
2017 230.3 0.135
2018 85.8 0.103
2019 21.8 0.102
2020 274.9 0.127
2021 232.3 0.139
2022 89.6 0.097
2023 25.3 0.105
2024 277.3 0.123
2025 234.2 0.143
2026 93.8 0.092
2027 28.6 0.109
2028 279.9 0.119
2029 236.0 0.146
2030 98.6 0.086


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


 
  


wds16171%2B5516a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 16171+5516 BLA 3 (CR Dra) : NOTES
 
 
discov_num notes refcode
BLA 3 Also known as CR Dra.
Gl 616.2 = CR Dra. Tamazian et al. (2008) orbit yields a dynamical Tam2008
parallax for this flare star of 58.43 +/0 0.7 mas, as well as a system
mass 1.76 +/- 0.13 Msun.
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 1.72 +/- 0.13, 1.09, and 0.47 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Tam2008 orb j Tamazian, V.S., Docobo, J.A., Balega, Y.Y., Melikian, N.D., Maximov, A.F., & 2008AJ....136..974T
Tam2008 +S Malogolovets, E.V.
Tam2008 AJ 136, 974, 2008
 
 
DISCOVERER
 
 
idgroup discov author
1 BLA Blazit, A., Bonneau, D., Koechlin, L. & Labeyrie, A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16171+5516 BLA 3 2007 8 308 0.1 10.16 11.94 M1.5Ve NOD 161705.31+551612.9
16171+5516 BLA 3 2019 15 9 0.1 10.16 11.94 M1.5Ve NO 161705.38+551609.0

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

 
 
WDS 16171+5516 BLA 3 (CR Dra) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 16171+5516 BLA 3 (CR Dra) : MEASURES
 
 
No records found.

 
 
WDS 16171+5516 (CR Dra) : VIRTUAL EYEPIECE
 
 

16171+5516 BLA 3A mag 10.2 Sp M1.5Ve 16171+5516 BLA 3B sep 0.1 P.A. 4.90 mag 11.9 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 16171+5516 (CR Dra) : ALADIN DSS IMAGE @ 16h 17m 05.38s +55° 16' 09.0"
 
 
 
 
WDS 16171+5516 BLA 3 (CR Dra) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

16171+5516 BLA 3 distance=0' 16147+5526 SKF 279 distance=23' 16177+5454 TDS 808 distance=23' 16194+5606 STI2338 distance=54' 16243+5520 SKF 242 distance=62' 16132+5422 TDS9800 distance=65' 16187+5412 CVR1662 distance=66' 16195+5620 CVR 184 distance=67' 16128+5613 SLW1167 distance=68' 16238+5441 TDS9878 distance=68' 16103+5439 ES 967 distance=70' 16122+5613 SLW1166 distance=71' 16255+5547 UC 3167 distance=78' 16225+5402 TDS9868 distance=88' 16271+5457 CVR 821 distance=89' 16140+5350 LDS4655 distance=91' 16081+5605 STI2331 distance=92' 16254+5418 BWL 43 distance=93' 16065+5441 MLB 135 distance=98' 16055+5504 CVR 811 distance=100' 16055+5511 TOI4045 distance=100' 16065+5604 YSC 110 distance=102' 16276+5415 ES 630 distance=110' 16248+5649 STI2340 distance=114' 16051+5426 ES 743 distance=116' 16306+5521 STI2342 distance=116' 16243+5658 KPP3997 distance=119' 16160+5718 STI2335 distance=123' 16058+5637 ARG 29 distance=125' 16313+5557 MLR 636 distance=128' 16289+5636 ARG 102 distance=128' 16286+5644 STF2060 distance=131' 16029+5427 LDS4627 distance=133' 16061+5652 TDS 802 distance=134' 16319+5435 CVR 828 distance=134' 16178+5730 STI2336 distance=135' 16334+5524 STI2343 distance=140' 16192+5736 A 1137 distance=141' 16004+5431 HU 154 distance=152' 16012+5626 KPP3977 distance=152' 15599+5557 CVR1658 distance=152' 16126+5748 ES 1793 distance=157' 16338+5626 CVR 833 distance=158' 16350+5431 NSN 681 distance=161' 15590+5435 TDS9709 distance=162' 16366+5502 TDS 824 distance=168' 16317+5327 SKF1645 distance=168' 16000+5340 GRV1120 distance=173' 16356+5633 ES 2652 distance=174' 16090+5756 ES 2651 distance=174' 16312+5725 WOR 32AB distance=174' 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 16171+5516 BLA 3 9 0.1
Show 16147+5526 SKF 279 203 3.8 23
Show 16177+5454 TDS 808 185 1.0 23
Show 16194+5606 STI2338 48 3.6 54
Show 16243+5520 SKF 242 126 15.0 62
Show 16132+5422 TDS9800 41 0.9 65
Show 16187+5412 CVR1662 351 4.1 66
Show 16195+5620 CVR 184 58 78.2 67
Show 16128+5613 SLW1167 107 18.1 68
Show 16238+5441 TDS9878 289 2.1 68
Show 16103+5439 ES 967 210 8.3 70
Show 16122+5613 SLW1166 122 161.3 71
Show 16255+5547 UC 3167 235 31.1 78
Show 16225+5402 TDS9868 227 0.7 88
Show 16271+5457 CVR 821 263 7.8 89
Show 16140+5350 LDS4655 322 26.5 91
Show 16081+5605 STI2331 19 6.5 92
Show 16254+5418 BWL 43 201 5.4 93
Show 16065+5441 MLB 135 96 3.4 98
Show 16055+5504 CVR 811 240 8.7 100
Show 16055+5511 TOI4045 45 0.3 100
Show 16065+5604 YSC 110 142 0.2 102
Show 16276+5415 ES 630 44 5.8 110
Show 16248+5649 STI2340 151 4.3 114
Show 16051+5426 ES 743 12 5.6 116
Show 16306+5521 STI2342 341 11.6 116
Show 16243+5658 KPP3997 302 2.9 119
Show 16160+5718 STI2335 151 9.5 123
Show 16058+5637 ARG 29 136 24.9 125
Show 16313+5557 MLR 636 272 0.6 128
Show 16289+5636 ARG 102 53 80.5 128
Show 16286+5644 STF2060 247 3.8 131
Show 16029+5427 LDS4627 101 187.8 133
Show 16061+5652 TDS 802 306 0.9 134
Show 16319+5435 CVR 828 118 12.7 134
Show 16178+5730 STI2336 161 3.4 135
Show 16334+5524 STI2343 225 7.7 140
Show 16192+5736 A 1137 204 0.6 141
Show 16004+5431 HU 154 298 1.4 152
Show 16012+5626 KPP3977 20 4.2 152
Show 15599+5557 CVR1658 231 3.0 152
Show 16126+5748 ES 1793 56 5.6 157
Show 16338+5626 CVR 833 131 16.8 158
Show 16350+5431 NSN 681 327 2.2 161
Show 15590+5435 TDS9709 200 0.7 162
Show 16366+5502 TDS 824 116 1.6 168
Show 16317+5327 SKF1645 79 3.3 168
Show 16000+5340 GRV1120 304 9.5 173
Show 16356+5633 ES 2652 182 13.1 174
Show 16090+5756 ES 2651 139 10.6 174
Show 16312+5725 WOR 32 AB 1.0 174

 
 
WDS 16171+5516 : COMPONENTS
 
 
  A
B pa=4.9°
sep=0.10"
 
 
16171+5516 A
 
 
Componente originario normalizzato AB Name CR Dra Coord arcsec 2000 161705.38+551609.0 Mag 10.2
Spectral class M1.5Ve (red) PmRA 88.00 PmDE -431.0 HIP 79796
Tycho2 3880-02179-1 BD BD+55 1823
Tycho2
Tycho2 3880-02179-1 Pflag RAmdeg 244.27238962 DEmdeg 55.26917569
PmRA 65.2 PmDE -449.4 E RAmdeg 20 E DEmdeg 23
E pmRA 3.2 E pmDE 3.5 EpRAm 1989.57 EpDEm 1991.04
Num 5 Q RAmdeg 1.7 Q DEmdeg 0.5 Q pmRA 1.7
Q pmDE 0.5 BTmag 11.608 E BTmag 0.064 VTmag 10.114
E VTmag 0.029 Prox 999 TYC T HIP 79796
CCDM RAdeg 244.27211972 DEdeg 55.27019472 EpRA 1990 1.67
EpDE 1990 1.83 E RAdeg 24.4 E DEdeg 23.5 Posflg
Corr -0.1
Hipparcos
Catalog H HIP 79796 Proxy RAhms 16 17 05.31
DEdms +55 16 12.9 Vmag 9.87 VarFlag R Vmag H
RAdeg 244.272 DEdeg 55.2703 AstroRef Plx 48.36
CCDM N CCDM Nsys Ncomp 1
MultFlag G Source Qual M HIP
Theta Rho HD BD BD+55 1823
CD CP Dm number +55 1823 VIred 1.78
SpType M1.5Ve R SpType Coord arcsec 2000 161705.31+551612.9
Hipparcos 2
HIP 79796 Sn 5 So 1 Nc 1
RArad 4.2633525046 DErad 0.9646480085 Plx 48.7 PmRA 85.34
PmDE -438.47 E RArad 0.93 E DErad 1.06 E Plx 1.07
E pmRA 1.18 E pmDE 1.23 Hpmag 9.9998 E Hpmag 0.0035
SHp 0.033 VA 0 BV 1.251 E BV 0.073
VI 1.21
CCDM
Ccdm 16171+5516 RComp Comp A Note1
Note2 Discov num DRAs -0.41 DDEs 9.0
R dRAs 81 Year Theta Rho
Obs 2 Vmag 10.0 Sp M1 PmNote @
PmRA 201 PmDE -450 Dm number +55 1823 Cat1 BD
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N N IDS W IDS 16171+5516A
HIC 79796
 
 
16171+5516 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 161705.38+551609.1 Mag 11.9 Calc delta mag 1.7
Calc coord yes
CCDM
Ccdm 16171+5516 RComp Comp B Note1
Note2 Discov num BLA DRAs DDEs
R dRAs Year 1986 Theta 40 Rho 0.1
Obs 1 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS W IDS 16171+5516B
HIC 79796