HD 170054 (Q12066429)

Alpha² Canum Venaticorum variable

1 reference

1 reference

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HD 170054

Henry Draper Catalogue

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NGC 6633 77

Smithsonian Astrophysical Observatory Star Catalog

New General Catalogue

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BD 06 3772

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GSC 00445-01833

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SAO 123501

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HIP 90443

1 reference

2MASS J18271469 0631069

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AG 06 2257

Astronomische Gesellschaft Katalog

1 reference

HIC 90443

Hipparcos Input Catalogue

1 reference

PPM 165858

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TYC 445-1833-1

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UBV M 36561

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

1 reference

uvby98 266330077

uvbyβ Photoelectric Photometric Catalogue

1 reference

YZ 6 8519

Yale Observatory Zone Catalog

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Gaia DR1 4477221656230795136

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Gaia DR2 4477221660540593536

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393.4375±8.2195 parsec

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stellar rotational velocity

25±2 kilometre per second

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Abundances determined using Si ii and Si iii in B-type stars: evidence for stratification

parallax

2.5417±0.0531 milliarcsecond

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4.23±1.01 milliarcsecond

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The HIPPARCOS Catalogue

2.98±0.82 milliarcsecond

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Validation of the new Hipparcos reduction

2.67±0.24 milliarcsecond

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Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties

declination component of proper motion

−3.112±0.109 milliarcsecond per year

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−1.69±0.66 milliarcsecond per year

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Validation of the new Hipparcos reduction

−1.6±0.75 milliarcsecond per year

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right ascension component of proper motion

The HIPPARCOS Catalogue

2.109±0.104 milliarcsecond per year

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−0.21±0.72 milliarcsecond per year

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Validation of the new Hipparcos reduction

−0.63±0.86 milliarcsecond per year

1 reference

The HIPPARCOS Catalogue

radial velocity

−22.9±2.8 kilometre per second

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−17.3±3 kilometre per second

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−20.5±3.1 kilometre per second

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−23±2.7 kilometre per second

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−28.6±2.5 kilometre per second

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−24.9±2.8 kilometre per second

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−20.5±2.2 kilometre per second

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−27.1±2.9 kilometre per second

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−18.5±4.4 kilometre per second

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−23.4±3.2 kilometre per second

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−23.6±0.6 kilometre per second

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

type of variable star

Alpha² Canum Venaticorum variable

1 reference

New photometrically variable magnetic chemically peculiar stars in the ASAS-3 archive

spectral class

B7

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B9

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

8.19

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8.19

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New photometrically variable magnetic chemically peculiar stars in the ASAS-3 archive

8.1463±0.001

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8.087±0.023

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

8.13±0.03

astronomical filter

H band

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

8.125±0.027

astronomical filter

K band

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

1 reference

276.81121617641070 degree

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declination

6.51860082668870 degree

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effective temperature

14,500 kelvin

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