(Q14222)

General Catalogue of Trigonometric Stellar Parallaxes

2MASS J04511236+0536183

1 reference

PLX 1086

1 reference

BD+05 745

1 reference

CSV 100415

Catalogue of suspected variable stars

1 reference

FK5 179

1 reference

GC 5911

Boss General Catalogue

1 reference

GCRV 2859

General Catalogue of Stellar Radial Velocities

1 reference

HIC 22549

Hipparcos Input Catalogue

1 reference

JP11 937

1 reference

N30 1033

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

1 reference

NSV 1742

New Catalogue of Suspected Variable Stars

1 reference

PMC 90-93 127

Tokyo Photoelectric Meridian Circle Catalog

1 reference

PPM 148064

1 reference

ROT 686

Catalogue of rotational velocities of the stars

1 reference

SRS 30179

Southern Reference Star Catalog

1 reference

TD1 3625

TD1 Catalog of Stellar Ultraviolet Fluxes

1 reference

TYC 92-2345-1

1 reference

UBV 4665

UBV Photoelectric Photometry Catalogue

1 reference

uvby98 100030836

uvbyβ Photoelectric Photometric Catalogue

1 reference

PLX 1086.00

General Catalogue of Trigonometric Stellar Parallaxes

1 reference

SBC9 283

Eighth catalogue of the orbital elements of spectroscopic binary systems

1 reference

HGAM 347

A catalogue of Hgamma measures

1 reference

SBC7 195

Seventh catalogue of the orbital elements of spectroscopic binary systems

1 reference

WEB 4358

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

1 reference

Gaia DR2 3287731941066932864

1 reference

π⁴ Ori

0 references

3 Ori

UBV Photoelectric Photometry Catalogue

Flamsteed designation

0 references

Gaia DR3 3287731945364911232

1 reference

TIC 452810783

1 reference

AG+05 525

1 reference

UBV M 10382

1 reference

ALS 14769

Catalog of Galactic OB Stars

1 reference

1 reference

inferred from equatorial coordinates

distance from Earth

248.0836±23.1965 parsec

1 reference

stellar rotational velocity

38 kilometre per second

3 references

imported from Wikimedia project

English Wikipedia

The IACOB project. I. Rotational velocities in northern Galactic O- and early B-type stars revisited. The impact of other sources of line-broadening

The IACOB project. III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars

40 kilometre per second

1 reference

A catalogue of stellar rotational velocities

42 kilometre per second

1 reference

Catalogue of rotational velocities of the stars

35 kilometre per second

1 reference

Rotational Velocities of B Stars

36 kilometre per second

1 reference

The IACOB project. I. Rotational velocities in northern Galactic O- and early B-type stars revisited. The impact of other sources of line-broadening

39 kilometre per second

1 reference

The IACOB project. III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars

parallax

4.0309±0.3769 milliarcsecond

1 reference

2.59±0.8 milliarcsecond

1 reference

The HIPPARCOS Catalogue

3.1±0.18 milliarcsecond

1 reference

declination component of proper motion

3.305±0.6 milliarcsecond per year

1 reference

0.85±0.12 milliarcsecond per year

1 reference

1.03±0.63 milliarcsecond per year

1 reference

The HIPPARCOS Catalogue

2 milliarcsecond per year

1 reference

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

right ascension component of proper motion

−3.879±0.773 milliarcsecond per year

1 reference

−2.21±0.22 milliarcsecond per year

1 reference

−3.62±0.97 milliarcsecond per year

1 reference

The HIPPARCOS Catalogue

−1 milliarcsecond per year

1 reference

−7 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

23.3±0.9 kilometre per second

4 references

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

The orbit of pi 4 Orionis

A rediscussion of the orbits of seventy-seven spectroscopic binaries

General Catalogue of Stellar Radial Velocities

23.3±4.1 kilometre per second

1 reference

Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system

26.9 kilometre per second

1 reference

Sur l'orbite de la binaire spectroscopique pi4 Orion

26.8 kilometre per second

1 reference

Sur l'orbite de la binaire spectroscopique pi4 Ori

41.5 kilometre per second

1 reference

The radial velocities of faint class B stars in the declination zone 0 to -23

23.3 kilometre per second

3 references

A rediscussion of the orbits of seventy-seven spectroscopic binaries

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

The orbit of pi 4 Orionis

20.0 kilometre per second

1 reference

Catalogue of observed velocities

24.6 kilometre per second

1 reference

Radial velocities of 368 helium stars

30.2 kilometre per second

1 reference

Further study of the sodium lines in class B stars

16.3 kilometre per second

4 references

A list of four stars whose velocities in the line of sight are variable

New spectroscopic binary stars

A list of four stars whose velocities in the line of sight are variable

Notices from the Lick Observatory

3.5 kilometre per second

2 references

Five stars whose radial velocities vary

spectral class

B2III

2 references

Rotational velocities and spectral types for a sample of binary systems

The kinematics of the Gould belt: an expanding group ?

B2 III SB

22 references

Photoelectric measures of the 4430 A diffuse interstellar band

Seven-colour photometry of O, B and A stars

On the precision of the determination of spectral classes and colour excesses of O-A2 stars by the methods of two color diagrams

The light-variability of early B giants

Spectrophotometric measurements of early type stars. V. Results and discussion for 20 stars of MK type B2

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

Two-dimensional spectral classification by narrow-band photometry for B stars in clusters and associations

A system of three-color photometry, with applications to galactic structure in Cygnus

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

Observational confirmation of a theory of stellar evolution

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

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

Axial Rotation and Line Broadening in Stars of Spectral Types F0-K5

The colors of the beta Canis Majoris stars

Magnitudes and colors for 833 Northern and Southern stars

Three-color observations of 108 stars intended for use as photometric standards

A study of the Orion aggregate of early-type stars. II

Red and infrared magnitudes for 138 stars observed as photometric standards

Fundamental stellar photometry for standards of spectral type on the revised system of the Yerkes spectral atlas

A study of the Orion aggregate of early-type stars

Absolute Helligkeiten von 115 B-Sternen

B2IV

3 references

Spectral classification of Southern fundamental stars

Spectral types of bright southern stars

Relative gradients for 166 southern stars

B3

1 reference

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

B2IIISB

23 references

Photoelectric measures of the 4430 A diffuse interstellar band

Photoeletric measures of hydrogen-line absorption in early-type stars

Seven-colour photometry of O, B and A stars

On the precision of the determination of spectral classes and colour excesses of O-A2 stars by the methods of two color diagrams

The light-variability of early B giants

Spectrophotometric measurements of early type stars. V. Results and discussion for 20 stars of MK type B2

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

Two-dimensional spectral classification by narrow-band photometry for B stars in clusters and associations

A system of three-color photometry, with applications to galactic structure in Cygnus

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

Observational confirmation of a theory of stellar evolution

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

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

Axial Rotation and Line Broadening in Stars of Spectral Types F0-K5

The colors of the beta Canis Majoris stars

Magnitudes and colors for 833 Northern and Southern stars

Three-color observations of 108 stars intended for use as photometric standards

A study of the Orion aggregate of early-type stars. II

Red and infrared magnitudes for 138 stars observed as photometric standards

Fundamental stellar photometry for standards of spectral type on the revised system of the Yerkes spectral atlas

A study of the Orion aggregate of early-type stars

Absolute Helligkeiten von 115 B-Sternen

UBV photometry of stars whose positions are accurately known. VII

2.7±0.01

1 reference

UBV photometry of stars whose positions are accurately known. VII

3.5±0.007

1 reference

UBV photometry of stars whose positions are accurately known. VII

3.68±0.009

1 reference

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

3.74

1 reference

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

3.90

1 reference

3.5893±0.0039

1 reference

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

4.03

1 reference

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

4.09

1 reference

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

4.13

1 reference

metallicity

−0.31

1 reference

Carbon, nitrogen, and oxygen abundances in early B-type stars

imported from Wikimedia project

radius

9.1 solar radius

1 reference

Swedish Wikipedia

Wikimedia import URL

https://sv.wikipedia.org/w/index.php?title=Pi4_Orionis&oldid=46162165

locator map image

Orion charta.png
1,500 × 1,200; 704 KB

0 references

epoch

J2000.0

2 references

right ascension

72.80151967000 degree

1 reference

declination

5.60510341806 degree

1 reference

effective temperature

22,120 kelvin

1 reference

Carbon, nitrogen, and oxygen abundances in early B-type stars

surface gravity

3,900 centimetre per square second

1 reference

Carbon, nitrogen, and oxygen abundances in early B-type stars