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Doubles in session


Current system
05279+3447
HDS 721 AB


Nearby doubles
1' : 05278+3446
MLB1039

4' : 05276+3445
L 6

6' : 05284+3447
SEI 272

11' : 05270+3446
HDS 715

18' : 05292+3452
SKF2418

19' : 05276+3429
BUP 79AB

22' : 05281+3425
BU 889AB

22' : 05296+3450
SEI 303

23' : 05273+3426
D 7AB

25' : 05296+3503
BKO 341

26' : 05295+3502
BKO 340AB

26' : 05294+3505
SEI 299

30' : 05284+3515
BKO 250AB

30' : 05286+3515
SEI 283

31' : 05290+3419
SEI 294

31' : 05281+3518
BKO 242

32' : 05280+3518
BKO 239

32' : 05286+3517
BKO 255

33' : 05293+3420
KPP1619

33' : 05282+3519
BKO 245

33' : 05266+3418
FOX 59

33' : 05281+3519
SEI 268AB

33' : 05255+3432
DAM 327

33' : 05282+3520
BKO 244AB

33' : 05281+3520
BKO 240AB

34' : 05255+3431
BKO 334



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.

05279+3447 HDS 721 AB

 
 
05h 27m 52.40s +34° 46' 58.3" P.A. 221.00 sep 0.1 mag 8.63,9.99 Sp O9.5V+B0 dist. 219.78 pc (716.92 l.y.)
 
 
Coord 2000 05279+3447 Discov num HDS 721 Comp AB Coord arcsec 2000 05 27 52.40 +34 46 58.3
Date first 1991 Date last 2018 Obs 14
Pa first 214 Pa last 221.4 P.A. Now (θ) 221.4°
Sep first 0.1 Sep last 0.131 Sep. Now (ρ) 0.131"
Mag pri 8.63 Mag sec 9.99 delta mag (ΔM) 1.36 Spectral class O9.5V+B0 (blue/blue-white)
Pri motion ra +001 Sec motion ra
Pri motion dec +000 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
05279+3447 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 58059 05 27 52 +34 46 58 HDS 721 AB 2018 14 221 0.1 8.63 9.99 1.36 <===
Show IU Aur 58059 05 27 52 +34 46 58 MZA 44 AC 2018 1 162 4.0 8.30 17.20 8.90
Show 58059 05 27 52 +34 46 58 MZA 44 AD 2018 1 122 3.6 8.30 16.20 7.90
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name IU Aur Constellation Auriga SAO 58059 HIP 25565
Tycho2 2411-01941-1 HD 35652 BD BD+34 1051 Distance 219.78
Distance ly 716.92
 
 
WDS 05279+3447 HDS 721 AB : NOTES
 
 
discov_num notes refcode
HDS 721 The classification is from Mammano et al. (1977 A&A 59, 9), and
because the stars are are classified as B-type we have not included
this system in our distributions for the O-stars. Harries et al.
(1998 MNRAS 295, 386) discuss the inner double-lined system and
evidence of a near tertiary in a 294-day orbit. The distant, fourth
star was detected both by us (on the suggestion of B. Schaeffer) and HIP1997a
Hipparcos. Msn1998a
Primary is IU Aur, a Beta Lyr type eclipsing binary, P = 1.81147d. Zas2012
 
 
REFERENCES
 
 
refcode metd author reference
HIP1997a Hh - Hipparcos 1997yCat.1239....0E
HIP1997a Hipparcos Catalog, ESA SP-1200, 1997 (incl. Hp photometry, vol. 10)
Msn1998a Sc j Mason, B.D., Gies, D.R., Hartkopf, W.I., Bagnuolo, Jr., W.G., 1998AJ....115..821M
Msn1998a ten Brummelaar, T.A., & McAlister, H.A.
Msn1998a AJ 115, 821, 1998
Zas2012 - Zasche, P. ...................
Zas2012 private communication, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 HDS Hipparcos Double Star (from additional DD list)
1 MZA Maiz-Apellaniz, J., Walborn, N.R., Morrell, N.I., Niemela, V.S., & Nelan, E.P.
4 MZA Maiz-Apellaniz, J., Negueruela, I., Barba, R.H., Walborn, N.R., Pellerin, A.,
4 MZA Simon-Diaz, S., Sota, A., Marco, A., Alonso-Santiago, J., Sanchez-Bermudez, J.,
4 MZA Gamen, R.C., & Lorenzo, J.
5 MZA Maiz-Apellaniz, J., Sota, A., Arias, J.I., Barba, R.H., Walborn, N.R., Simon-Diaz,
5 MZA S., Negueruela, I., Marco, A., Leao, J.R., Herrero, A., Gamen, R.C. & Alfaro, E.J.
7 MZA Maiz-Apellaniz, J., Barba, R.H., Simon-Diaz, S., Sota, A., Trigueros Paez, E.,
7 MZA Caballero, J.A. & Alfaro, E.J.
9 MZA Maiz Apellaniz, J., Trigueros Paez, E., Negueruela, I., Barba, R.H., Simon-Diaz,
9 MZA S., Lorenzo, J., Sota, A., Gamen, R.C., Farina, C., Salas, J., Caballero, J.A.,
9 MZA Morrell, N.I., Pellerin, A., Alfaro, E.J., Herrero, A., Arias, J.I. & Marco, A.
13 MZA Maiz Apellaniz, J., Trigueros Paez, E., Negueruela, I., Barba, R.H., Simon-Diaz,
13 MZA S., Lorenzo, J., Sota, A., Gamen, R.C., Farina, C., Salas, J., Caballero, J.A.,
13 MZA Morrell, N.I., Pellerin, A., Alfaro, E.J., Herrero, A., Arias, J.I. & Marco, A.
14 MZA Maiz Apellaniz, J., Barba, R.H., Farina, C., Sota, A., Pantaleoni Gonzalez, M.,
14 MZA Holgado, G., Negueruela, I. & Simon-Diaz, S.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
05279+3447 HDS 721 AB 2018 14 221 0.1 8.63 9.99 O9.5V+B0. N 052752.40+344658.3

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

 
 
WDS 05279+3447 HDS 721 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 05279+3447 HDS 721 AB : MEASURES
 
 
No records found.

 
 
WDS 05279+3447 : VIRTUAL EYEPIECE
 
 

05279+3447 HDS 721A mag 8.63 Sp O9.5V 05279+3447 HDS 721B sep 0.1 P.A. 215.90 mag 9.99 Sp B0 05279+3447 MZA 44C sep 4.0 P.A. 165.30 mag 17.2 05279+3447 MZA 44D sep 3.1 P.A. 127.50 mag 16.2 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 05279+3447 : ALADIN DSS IMAGE @ 05h 27m 52.40s +34° 46' 58.3"
 
 
 
 
WDS 05279+3447 HDS 721 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

05279+3447 HDS 721AB distance=0' 05278+3446 MLB1039 distance=1' 05276+3445 L 6 distance=4' 05284+3447 SEI 272 distance=6' 05270+3446 HDS 715 distance=11' 05292+3452 SKF2418 distance=18' 05276+3429 BUP 79AB distance=19' 05276+3429 BUP 79AC distance=19' 05276+3429 BLL 15AD distance=19' 05281+3425 BU 889AB distance=22' 05281+3425 BU 889AC distance=22' 05281+3425 BU 889AD distance=22' 05281+3425 STF 707AE distance=22' 05281+3425 BU 889AF distance=22' 05296+3450 SEI 303 distance=22' 05281+3425 SKF2417FG distance=23' 05273+3426 D 7AB distance=23' 05273+3426 D 7AC distance=23' 05273+3426 HSW 6AE distance=23' 05273+3426 BU 9027CF distance=23' 05273+3426 D 7CD distance=23' 05296+3503 BKO 341 distance=25' 05295+3502 BKO 340BC distance=26' 05295+3502 BKO 340AB distance=26' 05294+3505 SEI 299 distance=26' 05284+3515 BKO 250AB distance=30' 05284+3515 BKO 250AC distance=30' 05286+3515 SEI 283 distance=30' 05290+3419 SEI 294 distance=31' 05281+3518 BKO 242 distance=31' 05280+3518 BKO 239 distance=32' 05286+3517 BKO 255 distance=32' 05293+3420 KPP1619 distance=33' 05282+3519 BKO 245 distance=33' 05281+3519 BKO 241DH distance=33' 05266+3418 FOX 59 distance=33' 05281+3519 SEI 268AB distance=33' 05281+3519 SEI 267AC distance=33' 05281+3519 SEI 269AD distance=33' 05281+3519 SEI 266AE distance=33' 05281+3519 SEI 265AF distance=33' 05281+3519 BKO 241AG distance=33' 05255+3432 DAM 327 distance=33' 05282+3520 BKO 244AB distance=33' 05282+3520 BKO 244AC distance=33' 05281+3520 BKO 240AB distance=33' 05281+3520 BKO 240AC distance=33' 05281+3520 BKO 240AD distance=33' 05255+3431 BKO 334 distance=34' 05252+3451 STF 698AB distance=34' 05281+3520 BKO 240CE distance=34' 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 05279+3447 HDS 721 AB 221 0.1
Show 05279+3447 MZA 44 AC 162 4.0
Show 05279+3447 MZA 44 AD 122 3.6
Show 05278+3446 MLB1039 115 6.4 1
Show 05276+3445 L 6 307 2.8 4
Show 05284+3447 SEI 272 193 5.5 6
Show 05270+3446 HDS 715 304 0.7 11
Show 05292+3452 SKF2418 217 11.8 18
Show 05276+3429 BUP 79 AB 353 23.6 19
Show 05276+3429 BUP 79 AC 72 61.8 19
Show 05276+3429 BLL 15 AD 15 210.1 19
Show 05281+3425 BU 889 AB 226 1.0 22
Show 05281+3425 BU 889 AC 101 4.0 22
Show 05281+3425 BU 889 AD 107 12.3 22
Show 05281+3425 STF 707 AE 132 18.3 22
Show 05281+3425 BU 889 AF 199 27.8 22
Show 05296+3450 SEI 303 291 22.7 22
Show 05281+3425 SKF2417 FG 115 1.2 23
Show 05273+3426 D 7 AB 328 21.2 23
Show 05273+3426 D 7 AC 284 170.7 23
Show 05273+3426 HSW 6 AE 41 23.2 23
Show 05273+3426 BU 9027 CF 121 14.9 23
Show 05273+3426 D 7 CD 52 28.8 23
Show 05296+3503 BKO 341 98 10.6 25
Show 05295+3502 BKO 340 BC 142 7.5 26
Show 05295+3502 BKO 340 AB 250 10.1 26
Show 05294+3505 SEI 299 161 9.0 26
Show 05284+3515 BKO 250 AB 317 9.1 30
Show 05284+3515 BKO 250 AC 209 14.5 30
Show 05286+3515 SEI 283 150 12.4 30
Show 05290+3419 SEI 294 268 3.1 31
Show 05281+3518 BKO 242 87 6.6 31
Show 05280+3518 BKO 239 242 11.6 32
Show 05286+3517 BKO 255 20 13.2 32
Show 05293+3420 KPP1619 77 12.4 33
Show 05282+3519 BKO 245 252 9.1 33
Show 05281+3519 BKO 241 DH 100 12.1 33
Show 05266+3418 FOX 59 93 3.7 33
Show 05281+3519 SEI 268 AB 222 8.5 33
Show 05281+3519 SEI 267 AC 217 15.7 33
Show 05281+3519 SEI 269 AD 147 20.9 33
Show 05281+3519 SEI 266 AE 266 22.8 33
Show 05281+3519 SEI 265 AF 300 27.4 33
Show 05281+3519 BKO 241 AG 2 23.2 33
Show 05255+3432 DAM 327 135 5.7 33
Show 05282+3520 BKO 244 AB 326 6.1 33
Show 05282+3520 BKO 244 AC 346 43.0 33
Show 05281+3520 BKO 240 AB 146 12.8 33
Show 05281+3520 BKO 240 AC 66 17.1 33
Show 05281+3520 BKO 240 AD 356 19.7 33
Show 05255+3431 BKO 334 149 5.0 34

 
 
WDS 05279+3447 : COMPONENTS
 
 
  A B C
B pa=215.9°
sep=0.12"
 
C pa=165.3°
sep=3.95"
pa=163.9°
sep=3.88"
 
D pa=127.5°
sep=3.15"
pa=125.3°
sep=3.14"
pa=38.1°
sep=2.42"
 
 
05279+3447 A
 
 
Coord arcsec 2000 052752.40+344658.3 Mag 8.63 Spectral class O9.5V (blue) PmRA 1.00
PmDE 0.0 SAO 58059 HIP 25565 Tycho2 2411-01941-1
HD 35652 BD BD+34 1051
Tycho2
Tycho2 2411-01941-1 Pflag RAmdeg 81.96832588 DEmdeg 34.78284189
PmRA -0.1 PmDE -2.2 E RAmdeg 7 E DEmdeg 9
E pmRA 1.1 E pmDE 1.2 EpRAm 1991.07 EpDEm 1990.41
Num 11 Q RAmdeg 1.3 Q DEmdeg 0.7 Q pmRA 1.4
Q pmDE 0.7 BTmag 8.601 E BTmag 0.019 VTmag 8.394
E VTmag 0.015 Prox 600 TYC T HIP 25565
CCDM AB RAdeg 81.96832611 DEdeg 34.78284750 EpRA 1990 1.69
EpDE 1990 1.39 E RAdeg 6.7 E DEdeg 8.9 Posflg P
Corr -0.2
SAO
SAO 58059 DelFlag RA1950 PmRA1950 0.0007
DE1950 PmDE1950 -0.011 Vmag 8.3 SpType B
Double code Source 6 CatNum 573 DM BD+34 1051
DMcomp BDsup HD 35652 M HD 0
GC RA1950rad 1.4161029 DE1950rad 0.60636125 PmRA2000 0.0007
PmDE2000 -0.011
Hipparcos
Catalog H HIP 25565 Proxy H RAhms 05 27 52.40
DEdms +34 46 58.3 Vmag 8.3 VarFlag 2 R Vmag H
RAdeg 81.9683 DEdeg 34.7828 AstroRef * Plx 4.52
CCDM 05279+3447 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source S Qual C M HIP AB
Theta 214 Rho 0.13 HD 35652 BD BD+34 1051
CD CP Dm number +34 1051 VIred 0.23
SpType B3Vnne R SpType Coord arcsec 2000 052752.40+344658.3
Hipparcos 2
HIP 25565 Sn 55 So 3 Nc 2
RArad 1.4306172786 DErad 0.6070752217 Plx 4.55 PmRA 1.16
PmDE -0.35 E RArad 1.19 E DErad 0.65 E Plx 1.32
E pmRA 1.57 E pmDE 0.71 Hpmag 8.3598 E Hpmag 0.0258
SHp 0.196 VA 1 BV 0.192 E BV 0.018
VI 0.21
CCDM
Ccdm 05279+3447 RComp Comp A Note1
Note2 Discov num DRAs -1.60 DDEs -1.7
R dRAs 82 Year Theta Rho
Obs 2 Vmag 8.6 Sp B3 PmNote *
PmRA 1 PmDE 0 Dm number +34 1051 Cat1 BD
Name2 +34 573 Cat2 AGK2/3 HD 35652 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 25565
 
 
05279+3447 B
 
 
Coord arcsec 2000 052752.39+344658.2 Mag 9.99 Spectral class B0 (blue-white) Calc delta mag 1.36
Calc coord yes
CCDM
Ccdm 05279+3447 RComp Comp B Note1
Note2 Discov num HDS DRAs -1.60 DDEs -1.8
R dRAs 82 Year 1991 Theta 214 Rho 0.1
Obs 1 Vmag 10.0 Sp PmNote *
PmRA 1 PmDE 0 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 25565
 
 
05279+3447 C
 
 
Coord arcsec 2000 052752.48+344654.5 Mag 17.2 Calc delta mag 8.57 Calc coord yes
 
 
05279+3447 D
 
 
Coord arcsec 2000 052752.60+344656.4 Mag 16.2 Calc delta mag 7.57 Calc coord yes