NP Hydrae (Q12070277)

variable star

1 reference

Alpha² Canum Venaticorum variable

1 reference

1 reference

ADS 7152 AB

Aitken Double Star Catalogue

1 reference

CCDM J09020+0240AB

Catalog of Components of Double and Multiple Stars

1 reference

GSC 00229-00560

1 reference

GSC 00229-02625

1 reference

HD 77314

Henry Draper Catalogue

1 reference

HIC 44359

Hipparcos Input Catalogue

1 reference

HIP 44359

1 reference

IDS 08568+0304 AB

Index Catalogue of Visual Double Stars

1 reference

Smithsonian Astrophysical Observatory Star Catalog

2MASS J09015877+0240164

1 reference

PPM 155336

1 reference

SAO 117363

1 reference

TD1 13433

TD1 Catalog of Stellar Ultraviolet Fluxes

1 reference

WDS J09020+0240AB

1 reference

YZ 2 3641

Yale Observatory Zone Catalog

1 reference

AG+02 1225

1 reference

BD+03 2124

1 reference

GPM 135.494925+02.671228

GPM - compiled catalogue of absolute proper motions of stars in selected areas of sky with galaxies

1 reference

TYC 229-560-1

The Tycho-2 catalogue of the 2.5 million brightest stars

1 reference

HD 77314A

Henry Draper Catalogue

1 reference

NP Hya

General Catalogue of Variable Stars

1 reference

BU 211

1 reference

AP J09015877+0240164

1 reference

Renson 21834

1 reference

Fourth USNO CCD Astrograph Catalog

SKY# 17435

1 reference

TIC 270487298

1 reference

UCAC4 464-042474

1 reference

WISE J090158.76+024016.3

WISE All-sky Data Release

1 reference

Gaia DR2 577433308992926080

1 reference

BU 211A

1 reference

WDS J09020+0240A

1 reference

Gaia DR3 577433308992926080

1 reference

1 reference

220.7279 parsec

1 reference

Gaia Data Release 3

parallax

6.58±1.37 milliarcsecond

1 reference

The HIPPARCOS Catalogue

6.78±0.91 milliarcsecond

1 reference

declination component of proper motion

−2.49±0.42 milliarcsecond per year

1 reference

−2.71±0.66 milliarcsecond per year

1 reference

The HIPPARCOS Catalogue

−21±8 milliarcsecond per year

1 reference

AGK3

−19 milliarcsecond per year

1 reference

GPM - compiled catalogue of absolute proper motions of stars in selected areas of sky with galaxies

right ascension component of proper motion

−8.09±0.99 milliarcsecond per year

1 reference

−8.49±1.47 milliarcsecond per year

1 reference

The HIPPARCOS Catalogue

−19±8 milliarcsecond per year

1 reference

AGK3

19 milliarcsecond per year

1 reference

GPM - compiled catalogue of absolute proper motions of stars in selected areas of sky with galaxies

spectral class

ApSrCrEu

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)

7.20

1 reference

7.3

1 reference

Catalogue of Ap, HgMn and Am stars

6.95±0.021

astronomical filter

J band

1 reference

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

7.015±0.059

astronomical filter

H band

1 reference

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

6.963±0.027

astronomical filter

K band

1 reference

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

epoch

J2000.0

1 reference

right ascension

135.494937415 degree

1 reference

declination

2.671222618 degree

1 reference

has part(s)

TYC 229-560-2

series ordinal

B

1 reference