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HD 6660
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Star HD 6660

Binary star HD 6660 is located 67 light years away from the Sun. It consists of a orange star and a red dwarf. For now, there are no known exoplanets in this star system.
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Sun distance
67 light years
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HD 6660 A

Orange star, High proper motion star
Spectral class: K4V

Location +

Ascension iconRight ascension: 1h 7m 38.000s
Declination iconDeclination: 22° 57' 10.081'' (northern hemisphere)
Parallax iconParallax: 48.681
Distance iconSun distance: 66.999 ly | 20.5 pc
Star position
The position of a star tells us where it appears in the sky, similar to how we use coordinates like latitude and longitude on Earth. In astronomy, the three main coordinates are right ascension, declination and distance. .. icon More about Star position in StellarGuide

Basic characteristic

icon weight
Mass: 70 % M Sun
| 775.2 M Jupiter
 (estimate)
+
Star mass
The mass of the star HD 6660 A is unknown. Based on its other characteristics, it is estimated to be about 70 % of the Sun's mass.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
radius icon
Size: 70 % R Sun
| 7 R Jupiter
+
Star size
Radius of the star HD 6660 A is 0.701499 solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide
temperature icon
Temperature: 4755.33 K | 0.82 T Sun
+
Star temperature
Surface temperature of HD 6660 A is 4755.33 K, which is 82 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide

Photometry

Magnitude iconApparent magnitude (V): 9.2
Magnitude iconAbsolute magnitude (V): 7.6
Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
5
10
15
20
25
30
35
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

HD 6660 B

Red dwarf, High proper motion star
Spectral class: M3.5Ve

Basic characteristic

icon weight
Mass: 30 % M Sun
| 303.8 M Jupiter
 (estimate)
+
Star mass
The mass of the star HD 6660 B is unknown. Based on its other characteristics, it is estimated to be about 30 % of the Sun's mass.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
radius icon
Size: 30 % R Sun
| 3.3 R Jupiter
(estimate)
+
Star size
Radius of the star HD 6660 B is not known. Its estimated value based on other similar stars is about 30 % solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide
temperature iconTemperature: 3300 K
 (estimate)
+
Star temperature
Surface temperature of HD 6660 B is estimated to be 3341 K, which is 57 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide

Photometry

Magnitude iconApparent magnitude (V): 13.6
Magnitude iconAbsolute magnitude (V): 12
Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
5
10
15
20
25
30
35
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
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HD 6660 system structure

 HD 6660 A
HD 6660 B

More about HD 6660

       HD 6660 can be found in northern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is easily observable from Northern America, Europe and Asia.
Other designations of this star
LHS 5027, BD+22 176A, G 34-2, G 69-49, GJ 53.1 A, GJ 9040 A, Gliese 9040 A, HIP 5286, 2MASS J01073785+2257189, TIC 243187830, TYC 1747-565-1, WISE J010737.97+225712.9, TOI 2009, Gaia EDR3 2791782794564103808
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External sources
simbad icon
Simbad database (HD 6660B)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 2791782794564103680)
Archive from the Gaia mission

Frequently Asked Questions

How far is the HD 6660 system from the Sun?

The HD 6660 system is 67 light years or 20.5 parsecs from the Sun.

What galaxy is the HD 6660 star in?

The HD 6660 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 6660 system?

The HD 6660 system contains 2 stars.

What type of star is the HD 6660?

The primary in the HD 6660 system is a Orange star star.

What temperature is star HD 6660?

The primary in the HD 6660 system has a temperature of 4755.33 K. Find out more about the temperature of stars in Stellar guide
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 - 7.6 ly

LSPM J0053+1903
 - 8.7 ly

HD 4913
 - 8.8 ly
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