HD 18557 (Q6869959)

GC 3583

Boss General Catalogue

1 reference

HIC 13883

Hipparcos Input Catalogue

1 reference

JP11 730

1 reference

PPM 185244

1 reference

TD1 1811

TD1 Catalog of Stellar Ultraviolet Fluxes

1 reference

TYC 5287-1077-1

1 reference

UBV 2899

UBV Photoelectric Photometry Catalogue

1 reference

UBV M 9270

Photoelectric catalogue, magnitudes and colors of stars in the UBV and UCBV systems

1 reference

YZ 99 670

Yale Observatory Zone Catalog

1 reference

uvby98 100018557

uvbyβ Photoelectric Photometric Catalogue

1 reference

Renson 4650

1 reference

https://vizier.u-strasbg.fr/viz-bin/VizieR-5?-ref=VIZ60f213c975231&-out.add=.&-source=VI/42/out&-c=043.1817%20-10.2778,eq=B1875,rs=2

Gaia DR2 5173126346679474432

1 reference

1 reference

distance from Earth

91.6028±0.965 parsec

1 reference

stellar rotational velocity

22.5±0.4 kilometre per second

1 reference

Accurate stellar rotational velocities using the Fourier transform of the cross correlation maximum

23 kilometre per second

1 reference

Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i

15 kilometre per second

1 reference

The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars

parallax

10.9167±0.115 milliarcsecond

1 reference

11.11±0.73 milliarcsecond

1 reference

The HIPPARCOS Catalogue

11.1±0.41 milliarcsecond

1 reference

Validation of the new Hipparcos reduction

declination component of proper motion

−15.175±0.135 milliarcsecond per year

1 reference

−15.47±0.43 milliarcsecond per year

1 reference

Validation of the new Hipparcos reduction

−16.38±0.62 milliarcsecond per year

1 reference

The HIPPARCOS Catalogue

−7 milliarcsecond per year

1 reference

right ascension component of proper motion

−9.494±0.114 milliarcsecond per year

1 reference

−8.62±0.39 milliarcsecond per year

1 reference

Validation of the new Hipparcos reduction

−8.26±0.62 milliarcsecond per year

1 reference

The HIPPARCOS Catalogue

10 milliarcsecond per year

1 reference

radial velocity

−9.8±3.2 kilometre per second

1 reference

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

spectral class

A2m

2 references

Further bright peculiar A stars

A study of the bright A stars. I. A catalogue of spectral classifications

A2II/III

1 reference

Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5

A2

1 reference

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

6.47

1 reference

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

6.35

B band

1 reference

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

6.15

V band

1 reference

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

5.96

R band

1 reference

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

5.85

I band

1 reference

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

6.0941±0.0008

1 reference

5.738±0.019

1 reference

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

5.674±0.033

H band

1 reference

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

5.599±0.023

K band

1 reference

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

metallicity

0.30

1 reference

The A and Am-Fm stars. I. The abondances of Li, Al, Si and Fe

1 reference

44.69708896989720 degree

1 reference

declination

−9.77650221544380 degree

1 reference

effective temperature

7,621 kelvin

1 reference

Effective temperature scale and bolometric corrections from 2MASS photometry

7,910 kelvin

1 reference

The A and Am-Fm stars. I. The abondances of Li, Al, Si and Fe

surface gravity

16,000 centimetre per square second

1 reference