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HD 190007
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Star HD 190007

Orange star HD 190007 is located 41 light years away from the Sun. It is a single star of spectral class K5V B, that has 68 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
41 light years
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HD 190007

Orange star, BY Draconis variable
Spectral class: K5V B

Location +

Ascension iconRight ascension: 20h 2m 46.957s
Declination iconDeclination: 3° 19' 36.177'' (equatorial region)
Parallax iconParallax: 78.646
Distance iconSun distance: 41.471 ly | 12.7 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: 68 % M Sun
| 712 M Jupiter
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Star mass
Mass of the star HD 190007 is 0.68 solar masses.

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: 79 % R Sun
| 7.9 R Jupiter
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Star size
Radius of the star HD 190007 is 0.79 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: 4596 K | 0.8 T Sun
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Star temperature
Surface temperature of HD 190007 is 4596 K, which is 80 % 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
time icon
Age: 1 billions years | 0.22 Sun
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Star age
Star HD 190007 is 1 billion years old, which is about 0.22 of the Sun's age.

The age of a star tells us how long it has been shining since it formed. Knowing a star’s age helps astronomers understand its life stage, how it has changed over time, and what will happen to it in the future... icon More about Star age in StellarGuide
luminosity icon
Luminosity: 0.24 L Sun
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Star luminosity
Luminosity is the total amount of energy a star gives off every second. Think of it as the star’s true brightness — not just how bright it looks from Earth. This is important because some stars may appear dim simply because they are far away, not because they’re actually faint... icon More about Star luminosity in StellarGuide

Photometry

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 190007 system structure

 HD 190007
HD 190007 b 0.09 AU 16.5 M⊕ 11.7 days

More about HD 190007

Nearby star HD 190007 is a main sequence star that fuses hydrogen atoms into helium. It is approximately 80 % of the size of Sun and temperature on its surface is around 4596 K (4323 °C), which is about 80 % of Sun's temperature.
      a BY Draconis variable. Stars from this category exhibit periodic variations in their luminosity. The variability is caused by a rotation which shows and hides starspots on the surface. HD 190007 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. 

      HD 190007 is a BY Draconis variable. Stars from this category exhibit periodic variations in their luminosity. The variability is caused by a rotation which shows and hides starspots on the surface.
Other designations of this star
V1654 Aql, V1654 Aquilae, BD+02° 4076, GJ 775, Gliese 775, HD 190007, HIC 98698, HIP 98698, SAO 125379, GC 27782, 2MASS J20024703+0319344, SAO 125379, TIC 345217789, TYC 498-2720-1, USNO-B1.0 0933-00588224, WISE J200246.98+031935.5, Gaia EDR3 4247023886053586304
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External sources
icon study
simbad icon
Simbad database (HD 190007)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 4247023886053586304)
Archive from the Gaia mission

Frequently Asked Questions

How far is the HD 190007 system from the Sun?

The HD 190007 system is 41 light years or 12.7 parsecs from the Sun.

What galaxy is the HD 190007 star in?

The HD 190007 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 190007 system?

The HD 190007 is a single star, there are no other known stars in the system.

What type of star is the HD 190007?

The star HD 190007 is a Orange star star.

What temperature is star HD 190007?

The star HD 190007 has an effective temperature of 4596 K. Find out more about the temperature of stars in Stellar guide
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