(Q14224)

SAO 132406

Smithsonian Astrophysical Observatory Star Catalog

1 reference

IRAS 0536-026P10

1 reference

σ Ori

1 reference

imported from Wikimedia project

English Wikipedia

ADS 4241 AB

Aitken Double Star Catalogue

1 reference

CCDM J05387-0236AB

Catalog of Components of Double and Multiple Stars

1 reference

CEL 890

Celescope Catalogue of Ultraviolet Magnitudes

1 reference

EUVE J0538-02.5

The first Extreme Ultraviolet Explorer source catalog

1 reference

GC 7031

Boss General Catalogue

1 reference

GCRV 3488

General Catalogue of Stellar Radial Velocities

1 reference

HIC 26549

Hipparcos Input Catalogue

1 reference

IRAS 05362-0237

1 reference

JP11 1205

1 reference

N30 1211

Catalog of 5,268 Standard Stars Based on the Normal System N30

1 reference

NSV 16610

New Catalogue of Suspected Variable Stars

1 reference

PLX 1293

General Catalogue of Trigonometric Stellar Parallaxes

1 reference

PPM 188303

1 reference

RAFGL 5159

The Revised AFGL (RAFGL) catalogue

1 reference

ROT 896

Catalogue of rotational velocities of the stars

1 reference

TYC 4771-1196-1

1 reference

UBV 5696

UBV Photoelectric Photometry Catalogue

1 reference

UBV 5698

UBV Photoelectric Photometry Catalogue

1 reference

UCAC3 175-24559

Third USNO CCD Astrograph Catalog

1 reference

UCAC4 437-010887

Fourth USNO CCD Astrograph Catalog

1 reference

uvby98 100037468 ABV

uvbyβ Photoelectric Photometric Catalogue

1 reference

WDS J05387-0236AB

Washington Double Star Catalog

1 reference

YPAC 389

Yunnan Photoelectric Astrolabe Catalogue

1 reference

CGO 101

A catalogue of galactic O stars. The ionization of the low density interstellar medium by runaway stars

1 reference

GOS G206.82-17.34 01

A galactic O star catalog

1 reference

HGAM 463

A catalogue of Hgamma measures

1 reference

WEB 5232

Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue

1 reference

Catalog of Galactic OB Stars

Gaia DR2 3216486439446556544

1 reference

48 Ori

Flamsteed designation

0 references

Gaia DR3 3216486443742786048

1 reference

TIC 11286198

1 reference

ALS 8473

1 reference

UBV M 11305

UBV Photoelectric Photometry Catalogue

1 reference

1 reference

inferred from equatorial coordinates

0 references

0 references

2.84±0.91 milliarcsecond

1 reference

The HIPPARCOS Catalogue

3.04±8.92 milliarcsecond

1 reference

Validation of the new Hipparcos reduction

declination component of proper motion

13.45±5.09 milliarcsecond per year

1 reference

Validation of the new Hipparcos reduction

−0.4±0.53 milliarcsecond per year

1 reference

The HIPPARCOS Catalogue

−0.4±1 milliarcsecond per year

1 reference

VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012)

4 milliarcsecond per year

1 reference

right ascension component of proper motion

22.63±10.83 milliarcsecond per year

1 reference

Validation of the new Hipparcos reduction

4.61±0.88 milliarcsecond per year

1 reference

The HIPPARCOS Catalogue

4.6±1 milliarcsecond per year

1 reference

VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012)

0 milliarcsecond per year

1 reference

1 milliarcsecond per year

1 reference

Catalog of 5268 standard stars for the equinox and epoch 1950.0 based on the Normal Star System N30

radial velocity

29.2±2 kilometre per second

1 reference

General Catalogue of Stellar Radial Velocities

29.9±1.6 kilometre per second

1 reference

Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations

29.1 kilometre per second

2 references

The revision of the general catalogue of radial velocities

Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue

25.9 kilometre per second

1 reference

High-dispersion spectroscopy of the sigma Orionis system

28.2 kilometre per second

1 reference

An analysis of radial-velocity measures of eight stars formerly assigned to the beta Cephei group

24.6 kilometre per second

1 reference

The radial velocities of 523 O and B type stars obtained at Victoria, 1923-1929

11.5 kilometre per second

1 reference

Catalogue of observed velocities

30.6 kilometre per second

1 reference

Radial velocities of 368 helium stars

10.8 kilometre per second

1 reference

A spectrographic study of early class B stars, III

22.3 kilometre per second

2 references

Eight stars whose radial velocities vary

spectral class

O9.5V

B0.0

1 reference

A spectroscopic census in young stellar regions: the {sigma} Orionis cluster

O9.7III

2 references

The Galactic O-Star Spectroscopic Survey. I. Classification system and bright northern stars in the blue-violet at R ~ 2500

The Galactic O-Star Spectroscopic Survey (GOSSS). II. Bright southern stars

OB

1 reference

Luminous Stars in the Northern Milky Way

O9V

1 reference

MK classification for visual binary components

O9.5 V SB

22 references

Seven-colour photometry of O, B and A stars

Standard stars for spectral classification

Spectrophotometric measurements of early type stars

Spectral types of bright southern stars

A two-dimensionnal quantitative spectral classification of 283 O5-B7 stars and the construction of a spectrum-absolute magnitude diagram

The equivalent widths of absorption lines in the spectra of 109 O5-B7stars

The Helium-rich star sigma Orionis E

Photoelectric spectrophotometry. II. Monochromatic colors of O, B and A-type stars

Comet-tail structures in emission nebulae

A study of bright rims in diffuse nebulae

Six-color photometry of stars. VIII. The colors of 409 stars of different spectral types

Observational confirmation of a theory of stellar evolution

Photoelectric spectrophotometry. I. Hydrogen line intensities of O, B and A type stars

Emission lines in O stars

Studies in galactic structure. II. Luminosity classification for 1270 blue giants stars

Recherches sur la loi d'absorption de la poussiere interstellaire et sur le spectre continu des etoiles O et B

Spectrographic observations of galactic emission regions and nebulae

Q66616686

Contribution a l'etude de la zone convective des etoiles

A study of the Orion aggregate of early-type stars

Relative gradients for 166 southern stars

An atlas of stellar spectra with an outline of spectral classification

A2 V COMP

1 reference

The Helium-rich star sigma Orionis E

B0.5V

1 reference

MK classification for visual binary components

B0

1 reference

VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)

O9.5V+B0.2V(n)

1 reference

O9.5V+B0.5V

1 reference

Variability of OB stars from TESS southern Sectors 1-13 and high-resolution IACOB and OWN spectroscopy

Catalogue of Stellar Photometry in Johnson's 11-color system

2.54

1 reference

A spectroscopic census in young stellar regions: the {sigma} Orionis cluster

3.58±0.01

1 reference

A spectroscopic census in young stellar regions: the {sigma} Orionis cluster

3.79±0.01

1 reference

Catalogue of Stellar Photometry in Johnson's 11-color system

3.87

1 reference

Catalogue of Stellar Photometry in Johnson's 11-color system

4.11

1 reference

VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)

4.75±0.26

1 reference

VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)

4.64±0.25

1 reference

VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)

4.49±0.016

1 reference

Gaia Early Data Release 3

3.790166±0.012771

1 reference

locator map image

Orion constellation map ru lite.png
2,100 × 2,100; 287 KB

0 references

2 references

84.68652242855 degree

1 reference

Gaia Early Data Release 3

declination

−2.60007866108 degree

1 reference

Gaia Early Data Release 3

effective temperature

33,000 kelvin

1 reference

The determination of T_eff_ of B, A and F main sequence stars from the continuum between 3200 A and 3600 A

31,270 kelvin

1 reference

Fundamental parameters of B supergiants from the BCD system. I. Calibration of the (λ_1, D) parameters into Teff