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Ross 1047
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Star Ross 1047

Red dwarf Ross 1047 is located 48 light years away from the Sun. It is a single star of spectral class M2V, that has 41 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
48 light years
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Ross 1047

Red dwarf, High proper motion star
Spectral class: M2V

Location +

Ascension iconRight ascension: 15h 9m 34.955s
Declination iconDeclination: 3° 10' 8.253'' (equatorial region)
Parallax iconParallax: 68.450
Distance iconSun distance: 47.648 ly | 14.6 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: 41 % M Sun
| 430 M Jupiter
+
Star mass
Mass of the star Ross 1047 is 0.41 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: 40 % R Sun
| 4.1 R Jupiter
(estimate)
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Star size
Radius of the star Ross 1047 is not known. Its estimated value based on other similar stars is about 40 % 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: 3261 K | 0.56 T Sun
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Star temperature
Surface temperature of Ross 1047 is 3261 K, which is 56 % 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): 11.5
Magnitude iconAbsolute magnitude (V): 10.6
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
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Ross 1047 system structure

 Ross 1047

More about Ross 1047

Nearby star Ross 1047 is a main sequence star that fuses hydrogen atoms into helium. It is approximately 40 % of the size of Sun and temperature on its surface is around 3261 K (2988 °C), which is about 56 % of Sun's temperature.
       Ross 1047 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
LHS 3030, G 66-66, G 15-9, GJ 3892, Gliese 3892, HIP 74190, LFT 1176, LSPM J1509+0310, LTT 14507, NLTT 39441, 2MASS J15093558+0310007, TIC 460418429, TYC 339-880-1, WISEA J150935.17+031005.5, Gaia EDR3 1155276250492687616
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External sources
simbad icon
Simbad database (Ross 1047)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 1155276250492687616)
Archive from the Gaia mission

Frequently Asked Questions

How far is the Ross 1047 system from the Sun?

The Ross 1047 system is 48 light years or 14.6 parsecs from the Sun.

What galaxy is the Ross 1047 star in?

The Ross 1047 is in the Milky Way galaxy just like the Sun.

How many stars are in the Ross 1047 system?

The Ross 1047 is a single star, there are no other known stars in the system.

What type of star is the Ross 1047?

The star Ross 1047 is a Red dwarf star.

What temperature is star Ross 1047?

The star Ross 1047 has an effective temperature of 3261 K. Find out more about the temperature of stars in Stellar guide
Class of stars Red dwarf
Red dwarfs are small, cool stars with surface temperatures of about 2,000–3,800 K, much cooler than the Sun. They usually have 8–50% of the Sun’s mass and shine very faintly, sometimes at just a tiny fraction of the Sun’s brightness. Classified mainly as spectral type M, they are the most common stars in the Milky Way, making up roughly 70–75% of its stellar population.

They fuse hydrogen slowly through the proton–proton chain and are fully convective, which allows them to use their fuel very efficiently. As a result, red dwarfs can live for tens of billions to trillions of years—far longer than the Sun. Many exoplanets orbit red dwarfs, including some in close habitable zones, though strong stellar activity can affect planetary environments.
Closest stars

 G 15-2
 - 3 ly

HD 135599
 - 4.7 ly

Psi Serpentis
 0.99 M☉ 7.2 ly

PM J15197+0439
 - 7.4 ly

2MASS J1448+1031
 - 7.5 ly
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