do not follow here
Stellar Catalog more icon Nearby stars catalogue more icon
HD 100546
more icon

Star HD 100546

White-Blue star HD 100546 is located 359 light years away from the Sun. It is a single star of spectral class A0VaekB8_lB B, that has 224 % of solar mass. There are multiple known exoplanets in this system.
Loading 3D model
Nearby stars catalogue
Sun distance
359 light years
galaxy map

HD 100546

White-Blue star
Spectral class: A0VaekB8_lB B

Location +

Ascension iconRight ascension: 11h 33m 25.445s
Declination iconDeclination: -70° 11' 41.239'' (southern hemisphere)
Parallax iconParallax: 9.089
Distance iconSun distance: 358.839 ly | 110.0 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: 224 % M Sun
| 2347 M Jupiter
+
Star mass
Mass of the star HD 100546 is 2.24 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: 200 % R Sun
| 20.2 R Jupiter
(estimate)
+
Star size
Radius of the star HD 100546 is not known. Its estimated value based on other similar stars is about 200 % 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: 11000 K | 1.9 T Sun
+
Star temperature
Surface temperature of HD 100546 is 11000 K, which is 190 % 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: 0.0048 billions years | 0 Sun
+
Star age
Star HD 100546 is 0.0048 billion years old, which is about 0 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

Photometry

Magnitude iconApparent magnitude (V): 6.7
Magnitude iconAbsolute magnitude (V): 1.5
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
Advertisement

HD 100546 system structure

 HD 100546
HD 100546 disk 2 AU 3.5 R⊕ -
HD 100546 b 53 AU 524.5 M⊕ 77.3 R⊕ 91250 days
HD 100546 c 110 AU 2702.2 M⊕ -

More about HD 100546

Star HD 100546 is a main sequence star that fuses hydrogen atoms into helium. It is is approximately 2 times bigger than the Sun and temperature on its surface is around 11000 K (10727 °C), which is about 190 % of Sun's temperature.
       HD 100546 can be found in southern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope.
Other designations of this star
KR Mus, HIC 56379, HIP 56379, SAO 251457, CD−69° 893, GC 15855, 2MASS J11332542-7011412, PDS 340, TIC 280773136, TYC 9229-2446-1, WISEA J113325.38-701141.0, IRAS 11312-6955
Advertisement
External sources
icon study
icon study
Refractory phosphorus in the HD 100546 protoplanetary disk
Scientific study, Accepted: 19. 04. 2025
icon study
icon study
icon study

Frequently Asked Questions

How far is the HD 100546 system from the Sun?

The HD 100546 system is 359 light years or 110.0 parsecs from the Sun.

What galaxy is the HD 100546 star in?

The HD 100546 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 100546 system?

The HD 100546 is a single star, there are no other known stars in the system.

What type of star is the HD 100546?

The star HD 100546 is a White-Blue star star.

What temperature is star HD 100546?

The star HD 100546 has an effective temperature of 11000 K. Find out more about the temperature of stars in Stellar guide
Advertisement

exoplanet iconAbout Stellar Catalog

line
Working with real data
icon 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
icon 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.
Fresh and validated
icon Stellar Catalog is continuously updated with new information from research papers. Stellar and planetary data are validated by automatic processes as well as humans.
Get your next news from nearby stars
Stellar Catalog brings the stars from our galaxy to you. Discover their position, physical properties and whether there are any exoplanets or disks orbiting them. The data in Stellar Catalog come from respectable sources like Gaia space telescope, or SIMBAD database.
Visit Stellar catalog on Facebook
Visit profile on X

Advertisement