HR 8799 (Q584300)

HR 8799: A Link between γ Doradus Variables and λ Bootis Stars

Gamma Doradus variable

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HR 8799: A Link between γ Doradus Variables and λ Bootis Stars

Lambda Boötis star

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HR 8799: A Link between γ Doradus Variables and λ Bootis Stars

infrared source

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astrophysical X-ray source

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rotating ellipsoidal variable

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HR 8799 Debris Disk.jpg
2,400 × 3,000; 1.23 MB

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Dutch Wikipedia

mass

1.47±0.3 solar mass

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HR 8799: A Link between γ Doradus Variables and λ Bootis Stars

1.5±0.3 solar mass

reason for deprecated rank

item/value with less precision and/or accuracy

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reference URL

http://exoplanet.eu/star.php?st=HR+8799

archive URL

https://www.webcitation.org/66KJBnuj6?url=http://exoplanet.eu/star.php?st=HR+8799

archive date

21 March 2012

1.56 solar mass

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Orbital motion of HR 8799 b, c, d using Hubble space telescope data from 1998: constraints on inclination, eccentricity, and stability

catalog code

GCRV 14514

General Catalogue of Stellar Radial Velocities

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HR 8799

Bright Star Catalogue

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TD1 29627

TD1 Catalog of Stellar Ultraviolet Fluxes

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HR 8799A

uvbyβ Photoelectric Photometric Catalogue

Bright Star Catalogue

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TYC 1718-2350-1

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BD+20 5278

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GSC 01718-02350

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2MASS J23072869+2108033

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HD 218396

Henry Draper Catalogue

1 reference

PPM 115157

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uvby98 100218396

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FK5 3850

1 reference

HIC 114189

Hipparcos Input Catalogue

1 reference

SAO 91022

Smithsonian Astrophysical Observatory Star Catalog

1 reference

YPAC 268

Yunnan Photoelectric Astrolabe Catalogue

1 reference

GC 32209

Yale Observatory Zone Catalog

Boss General Catalogue

1 reference

HIP 114189

1 reference

YZ 20 8860

1 reference

V342 Peg

General Catalogue of Variable Stars

1 reference

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

Gaia DR2 2832463659640297472

1 reference

Gaia DR1 2832463655344301952

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WEB 20279

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UBV Photoelectric Photometry Catalogue

1RXS J230729.0+210802

1 reference

Gaia DR3 2832463659640297472

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TIC 245368902

1 reference

AG+20 2610

1 reference

UBV M 26845

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IRAS 23050+2051

1 reference

WDS J23075+2108A

Washington Double Star Catalog

1 reference

WDS J23075+2108Aa

Washington Double Star Catalog

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inferred from equatorial coordinates

child astronomical body

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debris disk of HR 8799

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inferred from

debris disk of HR 8799

distance from Earth

39.4±1 parsec

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Direct imaging of multiple planets orbiting the star HR 8799

41.2925±0.1502 parsec

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40.88±0.076 parsec

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stellar rotational velocity

40 kilometre per second

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

37.5±2 kilometre per second

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A Ca II H&K survey of gamma Doradus candidates

49 kilometre per second

2 references

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

Rotational velocities of A-type stars. III. Velocity distributions

35 kilometre per second

1 reference

A new method for the inversion of atmospheric parameters of A/Am stars

50.5±1 kilometre per second

1 reference

Chemical analysis of early-type stars with planets

parallax

24.2175±0.0881 milliarcsecond

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25.04±0.85 milliarcsecond

1 reference

The HIPPARCOS Catalogue

25.38±0.7 milliarcsecond

1 reference

Validation of the new Hipparcos reduction

24.76±0.64 milliarcsecond

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

24.462±0.0455 milliarcsecond

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declination component of proper motion

−49.48±0.152 milliarcsecond per year

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−49.63±0.46 milliarcsecond per year

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Validation of the new Hipparcos reduction

−50.08±0.64 milliarcsecond per year

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The HIPPARCOS Catalogue

−50.04±0.059 milliarcsecond per year

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right ascension component of proper motion

108.301±0.168 milliarcsecond per year

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107.93±0.6 milliarcsecond per year

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Validation of the new Hipparcos reduction

107.88±0.75 milliarcsecond per year

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The HIPPARCOS Catalogue

108.284±0.056 milliarcsecond per year

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radial velocity

−11.5 kilometre per second

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

−12.5 kilometre per second

1 reference

The radial velocities of 917 stars

−11.5±2 kilometre per second

1 reference

General Catalogue of Stellar Radial Velocities

−12.6±1.4 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

Gamma Doradus variable

2 references

HR 8799: A Link between γ Doradus Variables and λ Bootis Stars

spectral class

1 reference

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

A5V

2 references

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

A5IV

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Classification des spectres de 112 etoiles A & F dont 89 etoiles Am

A 7 -F0 VW

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Spectral classification of A & F stars

A7-F0VW

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Spectral classification of A & F stars

F0VmA5

1 reference

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

kA5hF0mA5(lambdaBoo)

1 reference

HR 8799: A Link between γ Doradus Variables and λ Bootis Stars

kA5hF0mA5 (lambda Boo)

1 reference

HR 8799: A Link between γ Doradus Variables and λ Bootis Stars

kA5 hF0 mA5 v λ Boo

1 reference

HR 8799: A Link between γ Doradus Variables and λ Bootis Stars

F0+V({lambda}Boo)...

1 reference

Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I

F0+ V ({lambda} Boo)...

1 reference

Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I

F0+VkA5mA5lambdaBoo

1 reference

Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I

F0+VkA5mA5 lambda Boo

1 reference

Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I

F0+VkA5mA5

1 reference

Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I

F0VkA5mA5 lambda Boo

1 reference

An expert computer program for classifying stars on the MK spectral classification system

F0VkA5mA5lambdaBoo

1 reference

An expert computer program for classifying stars on the MK spectral classification system

F0VmA4lambdaBoo

1 reference

An expert computer program for classifying stars on the MK spectral classification system

F0VmA4 lambda Boo

1 reference

An expert computer program for classifying stars on the MK spectral classification system

6.21±0.01

1 reference

The Tycho-2 catalogue of the 2.5 million brightest stars

The Tycho-2 catalogue of the 2.5 million brightest stars

5.953±0.01

1 reference

5.910741±0.00296

1 reference

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

5.383±0.027

1 reference

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

5.28±0.018

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

5.24±0.018

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luminosity

4.92±0.41 solar luminosity

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HR 8799: A Link between γ Doradus Variables and λ Bootis Stars

5.514±0.025 solar luminosity

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absolute magnitude

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https://ru.wikipedia.org/?oldid=100511716

Russian Wikipedia

Wikimedia import URL

metallicity

−0.47

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Direct imaging of multiple planets orbiting the star HR 8799

−0.7

1 reference

A new method for the inversion of atmospheric parameters of A/Am stars

−0.55

1 reference

On the Chemical Abundance of HR 8799 and the Planet c

−0.48

1 reference

On the Chemical Abundance of HR 8799 and the Planet c

−1.5616

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radius

1.34±0.05 solar radius

1 reference

HR 8799: A Link between γ Doradus Variables and λ Bootis Stars

1.37 solar radius

1 reference

Characterization of Dusty Debris Disks: The IRAS and Hipparcos Catalogs

1.5±0.3 solar radius

1 reference

Determination of the inclination of the multi-planet hosting star HR 8799 using asteroseismology

1.44±0.09 solar radius

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diameter

1,907,000 kilometre

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Characterization of Dusty Debris Disks: The IRAS and Hipparcos Catalogs

1,910,000 kilometre

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Characterization of Dusty Debris Disks: The IRAS and Hipparcos Catalogs

2,004,400 kilometre

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2 references

346.86964883731 degree

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declination

21.13425299097 degree

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effective temperature

7,424 kelvin

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Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I

7,211 kelvin

1 reference

Rotational velocities of A-type stars. IV. Evolution of rotational velocities

7,163 kelvin

1 reference

Stellar diameters and temperatures. III. Main-sequence A, F, G, and K stars: additional high-precision measurements and empirical relations

reason for deprecated rank

7,000 kelvin

item/value with less precision and/or accuracy

1 reference

A new method for the inversion of atmospheric parameters of A/Am stars

7,300±200 kelvin

1 reference

7,450 kelvin

1 reference

On the Chemical Abundance of HR 8799 and the Planet c

7,250 kelvin

1 reference

On the Chemical Abundance of HR 8799 and the Planet c

7,266.4 kelvin

1 reference

7,301 kelvin

1 reference

Chemical analysis of early-type stars with planets

surface gravity

16,600 centimetre per square second

1 reference

Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I

6,000 centimetre per square second

1 reference

A new method for the inversion of atmospheric parameters of A/Am stars

25,000 centimetre per square second

1 reference

On the Chemical Abundance of HR 8799 and the Planet c

20,000 centimetre per square second

1 reference

On the Chemical Abundance of HR 8799 and the Planet c

11,640 centimetre per square second

1 reference

13,200 centimetre per square second

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Chemical analysis of early-type stars with planets

age estimated by a dating method

0.06±0.03 gigaannum

1 reference

Direct imaging of multiple planets orbiting the star HR 8799

Commons category

HR 8799

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English Wikipedia

topic's main template

Template:HR 8799

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inferred from

Template:HR 8799

topic's main category

Category:HR 8799

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