stampa
Login

Want to manage your own lists?
Create your account here!


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
18284+4444
HDS 2616
HD 170646


Nearby doubles
29' : 18306+4429
COU1928

33' : 18254+4440
BVD 262

40' : 18316+4504
COU1929

47' : 18297+4400
COU1789

49' : 18291+4356
MET 84

50' : 18324+4510
ES 1261

52' : 18274+4355
POP 134AB

52' : 18311+4527
HDS2626AB

53' : 18325+4513
ES 1262

57' : 18231+4439
COU1927

61' : 18326+4403
TDS 927

67' : 18326+4534
UC 3604

69' : 18343+4511
ES 2668

72' : 18242+4540
UC 240

76' : 18294+4328
GCB 32

81' : 18301+4325
J 763

82' : 18264+4326
HDS2606

87' : 18302+4320
A 584

88' : 18224+4545
A 700

88' : 18358+4524
UC 3622

89' : 18258+4321
BRT1917

89' : 18336+4336
NSN 705

94' : 18197+4453
ES 2665AB

95' : 18355+4546
LDS6329

106' : 18188+4510
WOL 2

112' : 18182+4509
HDS2588



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.

18284+4444 HDS 2616 (HD 170646)

 
 
18h 28m 25.85s +44° 44' 22.2" P.A. 62.00 sep 0.1 mag 9.24,10.33 Sp F0 dist. 193.42 pc (630.94 l.y.)
 
 
Coord 2000 18284+4444 Discov num HDS2616 Comp Coord arcsec 2000 18 28 25.85 +44 44 22.2
Date first 1991 Date last 2006 Obs 2
Pa first 78 Pa last 61.5 P.A. Now (θ) 61.5°
Sep first 0.1 Sep last 0.117 Sep. Now (ρ) 0.117"
Mag pri 9.24 Mag sec 10.33 delta mag (ΔM) 1.09 Spectral class F0 (yellow-white)
Pri motion ra -013 Sec motion ra
Pri motion dec +011 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 170646 Constellation Lyra SAO 47522 HIP 90540
Tycho2 3116-00254-1 Gaia DR2 2118116590072903040 HD 170646 BD BD+44 2908
Distance 193.42 Distance ly 630.94
 
 
WDS 18284+4444 HDS 2616 (HD 170646) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18284+4444 HDS2616 1991 1 78 0.1 9.24 10.33 F0 182825.85+444422.2
18284+4444 HDS2616 2006 2 62 0.1 9.24 10.33 F0 182825.85+444422.2

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

 
 
WDS 18284+4444 HDS 2616 (HD 170646) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18284+4444 HDS 2616 (HD 170646) : MEASURES
 
 
No records found.

 
 
WDS 18284+4444 (HD 170646) : VIRTUAL EYEPIECE
 
 

18284+4444 HDS2616A mag 9.24 Sp F0 18284+4444 HDS2616B sep 0.1 P.A. 52.60 mag 10.33 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 18284+4444 (HD 170646) : ALADIN DSS IMAGE @ 18h 28m 25.85s +44° 44' 22.2"
 
 
 
 
WDS 18284+4444 HDS 2616 (HD 170646) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18284+4444 HDS2616 distance=0' 18306+4429 COU1928 distance=29' 18254+4440 BVD 262 distance=33' 18316+4504 COU1929 distance=40' 18297+4400 COU1789 distance=47' 18291+4356 KPP3330AC distance=49' 18291+4356 MET 84 distance=49' 18324+4510 ES 1261 distance=50' 18274+4355 POP 134CD distance=52' 18274+4355 POP 134AB distance=52' 18274+4355 POP 134AC distance=52' 18311+4527 HDS2626AB distance=52' 18311+4527 GII 267Aa,Ab distance=52' 18325+4513 ES 1262 distance=53' 18231+4439 COU1927 distance=57' 18326+4403 TDS 927 distance=61' 18326+4534 UC 3604 distance=67' 18343+4511 ES 2668 distance=69' 18242+4540 UC 240 distance=72' 18294+4328 GCB 32 distance=76' 18301+4325 J 763 distance=81' 18264+4326 HDS2606 distance=82' 18302+4320 A 584 distance=87' 18224+4545 A 700 distance=88' 18358+4524 UC 3622 distance=88' 18258+4321 BRT1917 distance=89' 18336+4336 NSN 705 distance=89' 18197+4453 ES 2665AB distance=94' 18197+4453 WAL 90AC distance=94' 18355+4546 LDS6329 distance=95' 18188+4510 WOL 2 distance=106' 18182+4509 HDS2588 distance=112' 18373+4551 KPP4113 distance=115' 18353+4314 ES 1422 distance=117' 18395+4425 KPP3332 distance=120' 18176+4409 RAO 386 distance=122' 18388+4540 KPP 558 distance=124' 18295+4242 LDS4788 distance=124' 18180+4351 UC 3549 distance=125' 18178+4351 A 578Aa,Ab distance=126' 18178+4351 A 578AB distance=126' 18264+4649 STT 352 distance=126' 18328+4644 BRT1918 distance=128' 18173+4355 A 577 distance=129' 18337+4247 COU1790 distance=131' 18181+4334 A 579 distance=132' 18394+4346 DEA 410 distance=132' 18162+4423 ES 1421 distance=133' 18253+4653 BU 134 distance=133' 18240+4236 KPP 963 distance=138' 18400+4346 BRT1920 distance=138' 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 18284+4444 HDS2616 62 0.1
Show 18306+4429 COU1928 263 0.5 29
Show 18254+4440 BVD 262 327 15.6 33
Show 18316+4504 COU1929 165 1.8 40
Show 18297+4400 COU1789 275 0.4 47
Show 18291+4356 KPP3330 AC 242 20.2 49
Show 18291+4356 MET 84 40 10.1 49
Show 18324+4510 ES 1261 209 7.6 50
Show 18274+4355 POP 134 CD 250 4.6 52
Show 18274+4355 POP 134 AB 62 7.7 52
Show 18274+4355 POP 134 AC 285 66.8 52
Show 18311+4527 HDS2626 AB 173 0.4 52
Show 18311+4527 GII 267 Aa,Ab 117 0.1 52
Show 18325+4513 ES 1262 258 1.5 53
Show 18231+4439 COU1927 27 1.1 57
Show 18326+4403 TDS 927 299 1.1 61
Show 18326+4534 UC 3604 156 64.6 67
Show 18343+4511 ES 2668 226 12.3 69
Show 18242+4540 UC 240 314 63.6 72
Show 18294+4328 GCB 32 76 5.5 76
Show 18301+4325 J 763 310 1.9 81
Show 18264+4326 HDS2606 49 1.0 82
Show 18302+4320 A 584 12 4.7 87
Show 18224+4545 A 700 128 0.6 88
Show 18358+4524 UC 3622 74 31.8 88
Show 18258+4321 BRT1917 53 3.6 89
Show 18336+4336 NSN 705 221 18.3 89
Show 18197+4453 ES 2665 AB 21 9.9 94
Show 18197+4453 WAL 90 AC 334 77.1 94
Show 18355+4546 LDS6329 56 112.1 95
Show 18188+4510 WOL 2 183 1.3 106
Show 18182+4509 HDS2588 31 0.4 112
Show 18373+4551 KPP4113 81 1.7 115
Show 18353+4314 ES 1422 82 4.0 117
Show 18395+4425 KPP3332 297 21.9 120
Show 18176+4409 RAO 386 228 0.4 122
Show 18388+4540 KPP 558 98 5.2 124
Show 18295+4242 LDS4788 107 241.2 124
Show 18180+4351 UC 3549 159 20.7 125
Show 18178+4351 A 578 Aa,Ab 244 0.3 126
Show 18178+4351 A 578 AB 167 1.8 126
Show 18264+4649 STT 352 221 24.2 126
Show 18328+4644 BRT1918 190 4.2 128
Show 18173+4355 A 577 304 0.7 129
Show 18337+4247 COU1790 248 1.3 131
Show 18181+4334 A 579 340 1.5 132
Show 18394+4346 DEA 410 49 21.2 132
Show 18162+4423 ES 1421 345 11.8 133
Show 18253+4653 BU 134 125 1.1 133
Show 18240+4236 KPP 963 72 7.9 138
Show 18400+4346 BRT1920 197 2.9 138

 
 
WDS 18284+4444 : COMPONENTS
 
 
  A
B pa=52.6°
sep=0.09"
 
 
18284+4444 A
 
 
Componente originario normalizzato AB Name HD 170646 Coord arcsec 2000 182825.85+444422.2 Mag 9.24
Spectral class F0 (yellow-white) PmRA -13.00 PmDE 11.0 SAO 47522
HIP 90540 Tycho2 3116-00254-1 HD 170646 BD BD+44 2908
Tycho2
Tycho2 3116-00254-1 Pflag RAmdeg 277.10765786 DEmdeg 44.73953605
PmRA -13.9 PmDE 13.4 E RAmdeg 8 E DEmdeg 8
E pmRA 0.9 E pmDE 0.9 EpRAm 1990.30 EpDEm 1990.52
Num 11 Q RAmdeg 1.1 Q DEmdeg 1.1 Q pmRA 1.1
Q pmDE 1.2 BTmag 9.283 E BTmag 0.018 VTmag 8.864
E VTmag 0.014 Prox 999 TYC T HIP 90540
CCDM AB RAdeg 277.10770167 DEdeg 44.73950528 EpRA 1990 1.72
EpDE 1990 1.70 E RAdeg 8.0 E DEdeg 8.0 Posflg P
Corr 0.1
SAO
SAO 47522 DelFlag RA1950 PmRA1950 -0.0028
DE1950 PmDE1950 -0.008 Vmag 8.4 SpType F0
Double code Source 4 CatNum 1487 DM BD+44 2908
DMcomp BDsup HD 170646 M HD 0
GC RA1950rad 4.83003673 DE1950rad 0.78026125 PmRA2000 -0.0023
PmDE2000 -0.008
Hipparcos
Catalog H HIP 90540 Proxy H RAhms 18 28 25.85
DEdms +44 44 22.2 Vmag 8.81 VarFlag R Vmag G
RAdeg 277.108 DEdeg 44.7395 AstroRef * Plx 5.06
CCDM 18284+4444 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AB
Theta 78 Rho 0.146 HD 170646 BD BD+44 2908
CD CP Dm number +44 2908 VIred 0.48
SpType F0 R SpType Coord arcsec 2000 182825.85+444422.2
Hipparcos 2
HIP 90540 Sn 55 So 3 Nc 2
RArad 4.8364418319 DErad 0.7808516217 Plx 5.17 PmRA -12.9
PmDE 10.81 E RArad 0.59 E DErad 0.5 E Plx 0.66
E pmRA 0.6 E pmDE 0.69 Hpmag 8.899 E Hpmag 0.0021
SHp 0.018 VA 0 BV 0.415 E BV 0.009
VI 0.48
CCDM
Ccdm 18284+4444 RComp Comp A Note1
Note2 Discov num DRAs 1.84 DDEs 22.3
R dRAs 82 Year Theta Rho
Obs 2 Vmag 9.2 Sp F0 PmNote *
PmRA -13 PmDE 11 Dm number +44 2908 Cat1 BD
Name2 +44 1487 Cat2 AGK2/3 HD 170646 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 90540
 
 
18284+4444 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 182825.86+444422.3 Mag 10.33 Calc delta mag 1.09
Calc coord yes
CCDM
Ccdm 18284+4444 RComp Comp B Note1
Note2 Discov num HDS DRAs 1.85 DDEs 22.3
R dRAs 82 Year 1991 Theta 78 Rho 0.2
Obs 1 Vmag 10.3 Sp PmNote *
PmRA -13 PmDE 11 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 90540