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Nearby stars catalogue

Ross 640

Star Ross 640

White dwarf Ross 640 is located 52 light years away from the Sun. It is a single star of spectral class DZ6, that has typically about 60 % of solar mass. For now, there are no known exoplanets in this star system.

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Nearby stars catalogue

Sun distance
52 light years

Ross 640

White dwarf

Spectral class: DZ6

Location +

Right ascension: 16h 28m 24.349s

Declination: 36° 46' 27.794'' (northern hemisphere)

Parallax: 62.911

Sun distance: 51.844 ly | 15.9 pc

Photometry

Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).

K
2.1

H
1.6

J
1.2

Grp
0.8

I
0.8

G
0.6

V
0.5

Gbp
0.5

B
0.4

U
0.3

Ross 640 system structure


	Ross 640

More about Ross 640

       Ross 640 can be found in northern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.

Other designations of this star
Gaia EDR3 1331106782752978688

External sources

Simbad database (Ross 640)

Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)

Gaia database (Gaia EDR3 1331106782752978688)

Archive from the Gaia mission

Frequently Asked Questions

How far is the Ross 640 system from the Sun?

The Ross 640 system is 52 light years or 15.9 parsecs from the Sun.

What galaxy is the Ross 640 star in?

The Ross 640 is in the Milky Way galaxy just like the Sun.

How many stars are in the Ross 640 system?

The Ross 640 is a single star, there are no other known stars in the system.

What type of star is the Ross 640?

The star Ross 640 is a White dwarf star.

What temperature is the Ross 640?

The primary in the Ross 640 system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide

Closest stars

BD+41 2695	-	4 ly
LP 275-68	-	4.9 ly
LP 224-38	0.11 M☉	5.4 ly
Gliese 3929	0.31 M☉	5.6 ly
LP 275-74	-	6.2 ly

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About Stellar Catalog

Working with real data

Data in Stellar Catalog come from trusted scientific sources. Primary source is Gaia space telescope mapping the stars in Milky Way. Other sources include research papers, Simbad catalog and Exoplanet.eu database.

Estimated values

Objects listed in the Stellar Catalog often have values that are estimates. These estimates are determined using their known characteristics, such as spectral type, brightness across different wavelengths, distance from a star, and other factors.

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Stellar Catalog is continuously updated with new information from research papers. Stellar and planetary data are validated by automatic processes as well as humans.