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Current system
03256+4531
HO 321
HD 21060


Nearby doubles
7' : 03260+4536
HO 322AB

10' : 03259+4540
COU1682

17' : 03254+4545
ES 1218

32' : 03279+4551
COU1687

35' : 03232+4554
LDS9152

37' : 03283+4508
SKF2401

44' : 03250+4614
TDS 112

45' : 03250+4615
TDS2542

45' : 03215+4523
HO 319AB

45' : 03247+4448
KPP3523

47' : 03281+4452
COU1861

48' : 03293+4503
STF 391

50' : 03279+4614
COU1686

54' : 03209+4512
ES 1311AB

56' : 03245+4626
LDS9153

64' : 03221+4440
COU1681

68' : 03193+4519
COU1680

72' : 03193+4559
STF 372AB

72' : 03291+4632
COU2022

72' : 03267+4420
COU1685

74' : 03327+4534
ARG 56

75' : 03190+4602
JCT 1

75' : 03247+4417
ARG 55AB

75' : 03228+4640
COU2021

77' : 03266+4415
COU1684

79' : 03255+4412
LDS2848



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.

03256+4531 HO 321 (HD 21060)

 
 
03h 25m 37.70s +45° 30' 56.0" P.A. 33.00 sep 1.7 mag 7.51,10.36 Sp B7V dist. 699.3 pc (2281.12 l.y.)
 
 
Coord 2000 03256+4531 Discov num HO  321 Comp Coord arcsec 2000 03 25 37.70 +45 30 56.0
Date first 1893 Date last 2015 Obs 12
Pa first 36 Pa last 32.6 P.A. Now (θ) 32.6°
Sep first 1.5 Sep last 1.66 Sep. Now (ρ) 1.66"
Mag pri 7.51 Mag sec 10.36 delta mag (ΔM) 2.85 Spectral class B7V (blue-white)
Pri motion ra +005 Sec motion ra +010
Pri motion dec -004 Sec motion dec -003
Notes
rPM=0.488
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 21060 Constellation Perseus SAO 38815 HIP 15972
Tycho2 3312-00203-1 Gaia DR2 242668164786037760 HD 21060 ADS 2525
BD BD+44 695 Distance 699.3 Distance ly 2281.12
 
 
WDS 03256+4531 HO 321 (HD 21060) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Ho_1883 Ma j Hough, G.W. 1883MNRAS..43..371H
Ho_1883 MNRAS 43, 371, 1883 (data also in Ho_1890) 1890AN....125....1H
Ho_1884 Ma j Hough, G.W. 1884MNRAS..44..365H
Ho_1884 MNRAS 44, 365, 1884 (data also in Ho_1890) 1890AN....125....1H
Ho_1885 Ma j Hough, G.W. 1885MNRAS..45..417H
Ho_1885 MNRAS 45, 417, 1885 (data also in Ho_1890) 1890AN....125....1H
Ho_1886 Ma j Hough, G.W. 1886MNRAS..46..393H
Ho_1886 MNRAS 46, 393, 1886 (data also in Ho_1890) 1890AN....125....1H
Ho_1887 Ma j Hough, G.W. 1887AN....116..273H
Ho_1887 AN 116, 273, 1887
Ho_1890 Ma j Hough, G.W. 1890AN....125....1H
Ho_1890 AN 125, 1, 1890
Ho_1890b Ma j Hough, G.W. 1890AJ......9..177H
Ho_1890b AJ 9, 177, 1890 (some data also in Ho_1890 or Ho_1894b) 1890AN....125....1H
Ho_1894a Ma - Hough, G.W. 1894MNRAS..54..251H
Ho_1894a MNRAS 54, 251, 1894
Ho_1894b Ma j Hough, G.W. (HO 304 - 490) 1894AN....135..281H
Ho_1894b AN 135, 281, 1894
Ho_1894c Ma - Hough, G.W. (measure by Dembowski, H.) 1894AN....135..281H
Ho_1894c AN 135, 281, 1894
Ho_1899a Ma j Hough, G.W. 1899AN....149..65H
Ho_1899a AN 149, 65, 1899
Ho_1899b Ma - Hough, G.W. (measure by Burnham, S.W.) 1899AN....149..65H
Ho_1899b AN 149, 65, 1899
Ho_1907 Ma - Hough, G.W. 1907PFAO....3c...1D
Ho_1907 Pub. Univ. Penn. 3, Pt. 3, 1907 (measures sent to Doolittle)
Ho_1932A Ma - Hough, G.W. 1932QB821.A43......
Ho_1932A cited in ADS, 1932 (unpublished measures sent to Aitken in manuscript by Fox)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
03256+4531 HO 321 1991 11 33 1.6 7.51 10.36 B7V D 032537.70+453056.0
03256+4531 HO 321 2015 12 33 1.7 7.51 10.36 B7V 032537.70+453056.0

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

 
 
WDS 03256+4531 HO 321 (HD 21060) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 03256+4531 HO 321 (HD 21060) : MEASURES
 
 
No records found.

 
 
WDS 03256+4531 (HD 21060) : VIRTUAL EYEPIECE
 
 

03256+4531 HO 321A mag 7.51 Sp B7V 03256+4531 HO 321B sep 1.5 P.A. 24.10 mag 10.36 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 03256+4531 (HD 21060) : ALADIN DSS IMAGE @ 03h 25m 37.70s +45° 30' 56.0"
 
 
 
 
WDS 03256+4531 HO 321 (HD 21060) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

03256+4531 HO 321 distance=1' 03260+4536 HO 322AB distance=7' 03259+4540 COU1682 distance=10' 03254+4545 ES 1218 distance=17' 03279+4551 COU1687 distance=32' 03232+4554 LDS9152 distance=35' 03283+4508 SKF2401 distance=37' 03250+4614 TDS 112 distance=44' 03250+4615 TDS2542 distance=45' 03215+4523 HO 319AB distance=45' 03215+4523 HO 319AC distance=45' 03215+4523 MRI 3AD distance=45' 03247+4448 KPP3523 distance=45' 03281+4452 COU1861 distance=47' 03293+4503 STF 391 distance=48' 03279+4614 COU1686 distance=50' 03209+4512 ES 1311AB distance=54' 03209+4512 ES 1311AC distance=54' 03245+4626 LDS9153 distance=56' 03221+4440 COU1681 distance=64' 03193+4519 COU1680 distance=68' 03193+4559 ABH 20CD distance=71' 03193+4559 STF 372AB distance=72' 03193+4559 STF 372AC distance=72' 03193+4559 ABH 20AE distance=72' 03193+4559 ABH 20AF distance=72' 03193+4559 ABH 20AG distance=72' 03193+4559 ABH 20AH distance=72' 03193+4559 ABH 20AD distance=72' 03291+4632 COU2022 distance=72' 03267+4420 COU1685 distance=72' 03327+4534 ARG 56 distance=74' 03190+4602 JCT 1 distance=75' 03247+4417 ARG 55AB distance=75' 03247+4417 SIN 9AC distance=75' 03247+4417 SIN 9AD distance=75' 03228+4640 COU2021 distance=75' 03266+4415 COU1684 distance=77' 03255+4412 LDS2848 distance=79' 03322+4450 CRI 4 distance=82' 03206+4634 TDS2526 distance=82' 03336+4545 ES 561 distance=85' 03260+4405 COU1683 distance=87' 03207+4641 BU 1294 distance=87' 03302+4645 TDS2558 distance=89' 03172+4522 PRV 2 distance=90' 03256+4701 AG 306 distance=91' 03173+4553 CBL 19 distance=91' 03332+4615 ES 560 distance=91' 03294+4656 A 982EF distance=94' 03294+4656 STT 55AB distance=95' 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 03256+4531 HO 321 33 1.7 1
Show 03260+4536 HO 322 AB 126 1.9 7
Show 03259+4540 COU1682 74 0.7 10
Show 03254+4545 ES 1218 266 2.2 17
Show 03279+4551 COU1687 112 0.8 32
Show 03232+4554 LDS9152 36 10.8 35
Show 03283+4508 SKF2401 108 15.8 37
Show 03250+4614 TDS 112 39 0.9 44
Show 03250+4615 TDS2542 129 0.4 45
Show 03215+4523 HO 319 AB 47 11.6 45
Show 03215+4523 HO 319 AC 305 12.7 45
Show 03215+4523 MRI 3 AD 267 155.6 45
Show 03247+4448 KPP3523 206 1.9 45
Show 03281+4452 COU1861 111 0.8 47
Show 03293+4503 STF 391 96 3.9 48
Show 03279+4614 COU1686 263 0.5 50
Show 03209+4512 ES 1311 AB 51 7.8 54
Show 03209+4512 ES 1311 AC 314 10.1 54
Show 03245+4626 LDS9153 18 8.5 56
Show 03221+4440 COU1681 251 0.1 64
Show 03193+4519 COU1680 132 1.3 68
Show 03193+4559 ABH 20 CD 249 10.3 71
Show 03193+4559 STF 372 AB 292 7.7 72
Show 03193+4559 STF 372 AC 76 53.5 72
Show 03193+4559 ABH 20 AE 154 61.5 72
Show 03193+4559 ABH 20 AF 351 73.8 72
Show 03193+4559 ABH 20 AG 261 62.4 72
Show 03193+4559 ABH 20 AH 240 7.7 72
Show 03193+4559 ABH 20 AD 78 43.2 72
Show 03291+4632 COU2022 228 1.0 72
Show 03267+4420 COU1685 331 0.5 72
Show 03327+4534 ARG 56 164 28.7 74
Show 03190+4602 JCT 1 280 18.5 75
Show 03247+4417 ARG 55 AB 200 26.0 75
Show 03247+4417 SIN 9 AC 78 161.0 75
Show 03247+4417 SIN 9 AD 285 202.1 75
Show 03228+4640 COU2021 267 0.3 75
Show 03266+4415 COU1684 43 0.6 77
Show 03255+4412 LDS2848 106 87.8 79
Show 03322+4450 CRI 4 100 2.0 82
Show 03206+4634 TDS2526 306 0.9 82
Show 03336+4545 ES 561 39 8.1 85
Show 03260+4405 COU1683 179 0.3 87
Show 03207+4641 BU 1294 240 7.5 87
Show 03302+4645 TDS2558 236 0.7 89
Show 03172+4522 PRV 2 207 0.0 90
Show 03256+4701 AG 306 317 15.0 91
Show 03173+4553 CBL 19 232 48.2 91
Show 03332+4615 ES 560 142 9.5 91
Show 03294+4656 A 982 EF 308 2.6 94
Show 03294+4656 STT 55 AB 295 31.1 95

 
 
WDS 03256+4531 : COMPONENTS
 
 
  A
B pa=24.1°
sep=1.53"
 
 
03256+4531 A
 
 
Componente originario normalizzato AB Name HD 21060 Coord arcsec 2000 032537.70+453056.0 Mag 7.51
Spectral class B7V (blue-white) PmRA 5.00 PmDE -4.0 SAO 38815
HIP 15972 Tycho2 3312-00203-1 HD 21060 ADS 2525
BD BD+44 695
Tycho2
Tycho2 3312-00203-1 Pflag RAmdeg 51.40709387 DEmdeg 45.51556248
PmRA 5.0 PmDE -3.6 E RAmdeg 5 E DEmdeg 5
E pmRA 1.2 E pmDE 1.3 EpRAm 1991.40 EpDEm 1991.30
Num 9 Q RAmdeg 0.8 Q DEmdeg 1.4 Q pmRA 0.7
Q pmDE 1.3 BTmag 7.557 E BTmag 0.016 VTmag 7.515
E VTmag 0.012 Prox 16 TYC T HIP 15972
CCDM A RAdeg 51.40707694 DEdeg 45.51557028 EpRA 1990 1.72
EpDE 1990 1.59 E RAdeg 4.8 E DEdeg 5.2 Posflg P
Corr -0.4
SAO
SAO 38815 DelFlag RA1950 PmRA1950 -0.0007
DE1950 PmDE1950 -0.016 Vmag 7.7 SpType B8
Double code Source 3 CatNum 358 DM BD+44 695
DMcomp BDsup HD 21060 M HD 0
GC RA1950rad 0.88220987 DE1950rad 0.79133603 PmRA2000 -0.0007
PmDE2000 -0.019
Hipparcos
Catalog H HIP 15972 Proxy H RAhms 03 25 37.70
DEdms +45 30 56.0 Vmag 7.5 VarFlag R Vmag H
RAdeg 51.4071 DEdeg 45.5156 AstroRef A Plx 2.14
CCDM 03256+4531 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 32 Rho 1.641 HD 21060 BD BD+44 695
CD CP Dm number +44 695 VIred 0.04
SpType B8 R SpType Coord arcsec 2000 032537.70+453056.0
Hipparcos 2
HIP 15972 Sn 15 So 3 Nc 2
RArad 0.8972227425 DErad 0.7943965012 Plx 1.43 PmRA 10.15
PmDE -2.96 E RArad 0.73 E DErad 0.62 E Plx 0.9
E pmRA 0.9 E pmDE 0.87 Hpmag 7.5147 E Hpmag 0.0018
SHp 0.016 VA 0 BV -0.3 E BV 0.495
VI 0.04
CCDM
Ccdm 03256+4531 RComp Comp A Note1
Note2 Discov num DRAs 1.67 DDEs -3.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.7 Sp B8 PmNote *
PmRA -6 PmDE 10 Dm number +44 695 Cat1 BD
Name2 +45 358 Cat2 AGK2/3 HD 21060 M HD
ADS BDS A 2525 M ADS BDS N IDS IDS 03188N4510A
HIC 15972
 
 
03256+4531 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 032537.76+453057.4 Mag 10.36 PmRA 10.00
PmDE -3.0 Calc delta mag 2.85 Calc coord yes
CCDM
Ccdm 03256+4531 RComp Comp B Note1
Note2 Discov num HO 321 DRAs DDEs
R dRAs Year 1893 Theta 035 Rho 1.5
Obs 4 Vmag 10.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 2525 M ADS BDS N IDS IDS 03188N4510B
HIC 15972