Be Stars

Be stars are stars of spectral type B and of luminosity class  III, IV and V, whose rotation is so high that it is near the limit of the stellar disruption. Due to that rotation, as well as due to the seismic activity in the stellar interior, it is thought that these stars acquired an equatorial circum-stellar disk by ejection of its own photosphere. This disk is responsible for the emission of Balmer lines  (Hα, Hβ, etc.), as well as some of  Helium. These stars show different spectra according its angle of the axe of rotation with our line of sight. A variation of the spectrum of the same star may happen with time. The reason for this is not yet established and may be related to precession.

In this page high resolution spectra are presented in white background and medium resolution ones in blue background. Stars are distributed by alphabetical order.

Many of the spectra bellow are available at the Be Stars Database in FIT format.

The ARAS BeAm application allow to visualise all spectra in the BeSS and it is a powerful tool to prepare the night observation.

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4 Aql (20080427)

4 CrB (20080427)

5 Cnc (20080308)

6 Cep (20110706)

IAC80 Team

6 Cep (20110707)

IAC80 Team

12 Aur (20071012)

13 Tau (20071012)

16 Peg (20071012)

17 Tau (20071012)

23 Tau (20071008)

23 Tau (20090828)

28 Tau (20071008)

28 Tau (20080126)

28 Tau (20081003)

28 Tau (20090211)

Campaign for the determination of the system's orbital eccentricity

28 Tau (20090217)

Campaign for the determination of the system's orbital eccentricity

28 Tau (20090218)

Campaign for the determination of the system's orbital eccentricity

28 Tau (20090219)

Campaign for the determination of the system's orbital eccentricity

28 Tau (20090828)

31 Peg (20071012)

31 Peg (20081003)

43 Ori (20081003)

48 Lib (20100410)

56 Eri (20081004)

59 Cyg (20071101)

60 Cyg (20071010)

60 Cyg (20071031)

60 Cyg (20080606)

60 Cyg (20080718)

64 Ser (20060603)

COROT star

64 Ser (20070311)

COROT star

64 Ser (20070324)

COROT star

64 Ser (20070414)

COROT star

64 Ser (20070422)

COROT star

64 Ser (20070506)

COROT star

64 Ser (20070511)

COROT Star

64 Ser (20071010)

COROT Star

64 Ser (20090528)

CoRoT star

66 Cyg (20080606)

66 Oph (20080427)

66 Oph (20080516)

66 Oph (20100313)

66 Oph (20110629)

IAC80 Team

66 Oph (20110630)

IAC80 Team

66 Oph (20110701)

IAC80 Team

66 Oph (20110702)

IAC80 Team

66 Oph (20110703)

IAC80 Team

66 Oph (20110704)

IAC80 Team

66 Oph (20110705)

IAC80 Team

66 Oph (20110706)

IAC80 Team

66 Oph (20110707)

IAC80 Team

bet CMi (20071013)

bet CMi (20101002)

bet2 Cyg (20070422)

bet Lyr (20080719)

chi Oph (20080605)

chi Oph (20100504)

chi Oph (20110704)

IAC80 Team

CX Dra (20070505)

CX Dra (20070505)

Spectrum change in an hour

CX Dra (20070505)

Evolution within 2 hours

CX Dra (20070517)

3h20m evolution

CX Dra (20080606)

Animation of the night observation

CX Dra (20080717)

Night follow up

del Sco (20060819)

del Sco (20090605)

del Sco (20110416)

Periastron preparation

del Sco (20110604)

Periastron preparation

del Sco (20110611)

Periastron preparation

del Sco (20110612)

Periastron preparation

del Sco (20110622)

Periastron preparation

del Sco (20110628)

2011 Periastron campaign

IAC80 Team

del Sco (20110629)

2011 Periastron campaign

IAC80 Team

del Sco (20110702)

2011 Periastron campaign

IAC80 Team

del Sco (20110703)

2011 Periastron campaign

IAC80 Team

del Sco (20110704)

2011 Periastron campaign

IAC80 Team

del Sco (20110705)

2011 Periastron campaign

IAC80 Team

del Sco (20110706)

2011 Periastron campaign

IAC80 Team

del Sco (20110707)

2011 Periastron campaign

IAC80 Team

del Sco (20110708)

2011 Periastron campaign

IAC80 Team

DU Eri (20071013)

eta Ori (20101002)

eta Ori (20101105)

active

eta Tau (20071011)

EW Lac (20100724)

EW Lac (20110704)

IAC80 Team

gam Cas (20070518)

gam Cas (20070607)

gam Cas (20070728)

gam Cas (20071125)

gam Cas (20090710)

gam Cas (20100522)

gam Cas (20100724)

gam Cas (20101001)

gam Cas (20110704)

IAC80 Team

HD 22780 (20071011)

HD22780 (20090828)

Recent outburst

HD 26398 (20081114)

HD 34959 (20091016)

In Outburst

HD 34959 (20100312)

HD 35347 (20091016)

HD 43544 (20101216)

HD43913 (20090828)

CoRoT target in 2009-2010

HD 43913 (20091016)

CoRoT star

HD43913 (20100108)

CoRoT star

HD 43913 (20100312)

CoRoT star

HD 44996 (20081116)

HD 49330 (20071223)

COROT Star

HD 49330 (20090318)

CoRoT star

HD 49330 (20091016)

CoRoT star

HD49330 (20100109)

CoRoT star

HD 49330 (20100313)

CoRoT star

HD 50209 (20080308)

COROT Star

HD50820 (20061223)

COROT star

HD 51193 (20081003)

CoRoT target for winter 2008/9

HD 51193 (20081115)

CoRoT star

HD 51193 (20081116)

CoRoT star

HD 51452 (20081115)

CoRoT target for Winter 2008/9

HD 57682 (20081116)

HD 57682 (20100409)

HD 58978 (20101105)

HD 60855 (20101217)

HD 67698 (20081115)

HD 83953 (20101217)

HD 91120 (20080425)

HD 107348 (20101217)

HD 158319 (20100505)

HD 165174 (20090709)

HD171219 (20070721)

COROT Star

HD 171219 (20071011)

COROT Star

HD 181231 (20070603)

COROT Star

HD181231 (20070623)

COROT Star

HD181231 (20070630)

COROT Star

HD181231 (20070713)

COROT Star

HD181231 (20070721)

COROT Star

HD 181231 (20071010)

COROT Star

HD181409 (20090619)

HD183656 (20060819)

COROT star

HD183656 (20070613)

COROT Star

HD183656 (20070720)

COROT Star

HD 183656 (20090529)

CoRoT star

HD183656 (20090620)

CoRoT star

HD194244 (20090620)

CoRoT star

HD 208682 (20081003)

KY And (20081004)

lam Cyg (20081002)

lam Eri (20071013)

ome Ori (20071011)

omi And (20071012)

omi And (20090710)

omi Aqr (20090710)

omi Cas (20100724)

omi Her (20080307)

omi Her (20080516)

phi Leo (20080425)

phi Leo (20101217)

phi Per (20090827)

pi Aqr (20110629)

IAC80 Team

pi Aqr (20110630)

IAC80 Team

pi Aqr (20110701)

IAC80 Team

pi Aqr (20110702)

IAC80 Team

QR Vul (20080821)

Recent outburst. OHP

QR Vul (20081002)

tet Ari (20071010)

ups Sgr (20070518)

ups Sgr (20070603)

ups Sgr (20070607)

ups Sgr (20070612)

ups Sgr (20070622)

ups Sgr (20070630)

ups Sgr (20070706)

ups Sgr (20070713)

ups Sgr (20070720)

ups Sgr (20070727)

ups Sgr (20070923)

ups Sgr (20071009)

ups Sgr (20071031)

ups Sgr (20071110)

ups Sgr (20080426)

ups Sgr (20080517)

ups Sgr (20080605)

ups Sgr (20080719)

ups Sgr (20090529)

ups Sgr (20090620)

ups Sgr (20090709)

ups Sgr (20090827)

ups Sgr (20100522)

ups Sgr (20100723)

ups Sgr (20110705)

IAC80 Team

V1040 Sco (20100504)

V 1040 Sco (20100521)

V2385 Oph (20100410)

zet Oph (20060708)

zet Tau (20080306)

zet Tau (20081004)

zet Tau (20101002)