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APMPM J2101-4125
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Star APMPM J2101-4125

Red dwarf APMPM J2101-4125 is located 61 light years away from the Sun. It is a single star of spectral class M4, that has typically about 25 % of solar mass. For now, there are no known exoplanets in this star system.
Sun distance
61 light years
galaxy map

APMPM J2101-4125

Red dwarf, High proper motion star
Spectral class: M4

Location +

Ascension iconRight ascension: 21h 1m 4.329s
Declination iconDeclination: -41° 14' 37.335'' (southern hemisphere)
Parallax iconParallax: 53.268
Distance iconSun distance: 61.23 ly | 18.8 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: 30 % M Sun
| 272.4 M Jupiter
 (estimate)
+
Star mass
The mass of the star APMPM J2101-4125 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
| 2.9 R Jupiter
(estimate)
+
Star size
Radius of the star APMPM J2101-4125 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

Photometry

Magnitude iconApparent magnitude (V): 14.5
Magnitude iconAbsolute magnitude (V): 13.1
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
More about APMPM J2101-4125
       APMPM J2101-4125 can be found in southern 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 DR3 6773453838597541760
External sources
simbad icon
Simbad database (APMPM J2101-4125)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia DR3 6773453838597541760)
Archive from the Gaia mission
Class of stars Red dwarf
Red dwarfs are small, relatively cool, reddish stars. They are by far the most common type of star in the solar neighborhood. Their mass typically ranges from about 8% to 50% of the Sun's mass.
Possible companions

 L 424-30
 - 0.3 ly
Closest stars

 Gaia DR2 6576809826100275456
 - 5.4 ly

Gaia EDR3 6576809826101726208
 - 5.6 ly

APMPM J2127-3844
 - 8.4 ly

UPM J2037-4643
 - 8.7 ly

WT 792
 - 8.9 ly
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