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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.
 
 
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

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