Cyg OB2 -8A (Q5098460)

Aitken Double Star Catalogue

1RXS J203315.8+411848

1 reference

2MASS J20331508+4118504

1 reference

ADS 14000 A

1 reference

AG+41 1925

Astronomische Gesellschaft Katalog

1 reference

ALS 11423

Catalog of Galactic OB Stars

1 reference

BD+40 4227A

1 reference

CCDM J20332+4119A

Catalog of Components of Double and Multiple Stars

1 reference

CSI+40 4227 1

Catalog of Stellar Identifications

1 reference

GCRV 20036

General Catalogue of Stellar Radial Velocities

1 reference

GSC 03161-01325

1 reference

IDS 20297+4058

Index Catalogue of Visual Double Stars

1 reference

PPM 60129

1 reference

SAO 49781

Smithsonian Astrophysical Observatory Star Catalog

1 reference

TYC 3161-1325-1

1 reference

UBV 17839

UBV Photoelectric Photometry Catalogue

1 reference

UCAC3 263-196673

Third USNO CCD Astrograph Catalog

1 reference

WDS J20333+4119A

Washington Double Star Catalog

1 reference

CGO 605

A catalogue of galactic O stars. The ionization of the low density interstellar medium by runaway stars

1 reference

GOS G080.22+00.79 01

A galactic O star catalog

1 reference

Washington Double Star Catalog

Gaia DR2 2067784624247057920

1 reference

0 references

1 reference

Schulte 8C

1 reference

Washington Double Star Catalog

distance from Earth

1,618.3849±100.3142 parsec

1 reference

1.26 kiloparsec

1 reference

A Radial Velocity Survey of the Cyg OB2 Association

parallax

0.6179±0.0383 milliarcsecond

1 reference

declination component of proper motion

−4.067±0.063 milliarcsecond per year

1 reference

−1±8 milliarcsecond per year

1 reference

right ascension component of proper motion

AGK3

−2.645±0.057 milliarcsecond per year

1 reference

−2±8 milliarcsecond per year

1 reference

AGK3

radial velocity

125.56±17.85 kilometre per second

1 reference

−10.6 kilometre per second

1 reference

A Radial Velocity Survey of the Cyg OB2 Association

−27.7 kilometre per second

1 reference

Radial velocities of 65 early-type stars

spectral class

O5III(fc)

1 reference

The Galactic O-Star Spectroscopic Survey. I. Classification system and bright northern stars in the blue-violet at R ~ 2500

OB

1 reference

Luminous Stars in the Northern Milky Way

O6Ib(fc)+O4.5:III:

1 reference

The Galactic O-Star Spectroscopic Survey (GOSSS). II. Bright southern stars

O5.5I

2 references

Fundamental parameters of Galactic luminous OB stars VI. Temperatures, masses and WLR of Cyg OB2 supergiants

A Radial Velocity Survey of the Cyg OB2 Association

O 6 IB(N)(F)

1 reference

Spectral classification of Of stars in VI Cygni (Cygnus OB2)

O6e

4 references

Seven-colour photometry of O, B and A stars

Photometric, polarization, and spectroscopic observations of O and B stars

The law of interstellar reddening and absorption

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

O6 :. COMP

1 reference

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

O9 :. COMP

1 reference

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

O8 :. COMP

1 reference

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

O6Ib(fc)+O4.5:III:(fc)

1 reference

The Galactic O-Star Spectroscopic Survey (GOSSS). II. Bright southern stars

O8:. COMP

1 reference

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

O9:. COMP

1 reference

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

O6:. COMP

1 reference

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

10.42

1 reference

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

10.27

B band

1 reference

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

8.98

V band

1 reference

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

8.03

R band

1 reference

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

6.83

I band

1 reference

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

8.4202±0.0006

1 reference

6.123±0.02

1 reference

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

5.721±0.017

H band

1 reference

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

5.503±0.017

K band

1 reference

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

1 reference

308.31282537531840 degree

1 reference

declination

41.31402190540770 degree

1 reference