Milky Way Galaxy Atlas
HD 31527 b (Warm Neptunian)
Planet HD 31527 b - Warm Neptunian

125.900 Light Years Distant
Orbits in Habitable Zone - Habitable Moons?

[Theoretical Planet Image - More Data Needed]

Star Systems and ExoPlanets: 101 to 125 Light Years Away from Earth

There are currently 34 stars and 27 planets listed from 101 to 125 light years from our Solar System.

The stars in this range represent 25 Star Systems and 9 of these Star Systems have multiple planets.

The total planet count for this range includes 1 Mercurian planet, 4 Sub-Terran planets, 0 Terran planets (Earth-Size), 0 Super Terran planets, 1 Sub-Neptunian planets, 13 Neptunian planets, and 8 Jovian planets.

There are 0 planets in this range that have been confirmed to harbor intelligent life.

There are 0 planets in this range that are in the habitable zone of their star and might potentially harbor intelligent Alien life.

HD 31527 b the most notable planet within the 101 to 125 light year planet list. HD 31527 b is a Warm Neptunian that orbits in the habitable zone of its star. Does HD 31527 b have any habitable moons?

Planets have also been categorized according to their ESC, or Earth Similarity Class. Some scientists call this the Earth Simiarlity Index, or ESI. ESC is an indicator of how "Earth-like" a planet may be, based upon the following 20 criteria: whether a planet is in the habitable zone of their star (the area where liquid water could exist), if the planet is tidally locked (one side always faces its star), axial tilt, orbit eccentricity, size, mass, diameter, density, gravity, atmosphere, atmosphere pressure, ozone layer, magnetic field, parent star solar flares, average temperature, liquid water, land, plants, animals, and intelligent beings.

Planets outside of our solar system have ESC's calculated given the current data that is available. Their real ESC may rise or fall once complete data has been discovered. ESC will only be calculated for rocky planets and not for Gas Giant planets. ESC does not nessarily indicate that a planet is "habitable" or can support life as we know it. ESC only gives us a general indication about how that planet compares to Earth given currently available data. Images that are displayed for planets are theoretical based upon the current available data. Images may be updated as new planetary data is discovered.

In addition, any planet that has a green background, is located within the "habitable zone" of that star. The habitable zone of a star is defined as the area around a star where liquid water could possibly reside on a planet, given that the planet has sufficient atmospheric pressure and a temperature that allows for liquid water. It does not indicate that a planet will be "habitable" just because it's located within that star's habitable zone. Also, any planet that has an orange background, is located in the habitable zone, however, the planet is bombarded by strong solar flares from its parent star. Finally, any planet that has a red background, is located in the habitable zone, however, the planet is bombarded by extreme solar flares from its parent star.


Star Types

HD 157172

104.0000
Light
Years
G8.5V Dwarf



HD 157172 b

0.416 AU
104.8 Days

Hot
Neptunian

38.10 (EM)












Delta
Andromedae

105.500

Light
Years
K3III Dwarf | M SubDwarf | M SubDwarf









No Planets











HD 21693

105.700

Light
Years
G9IV Dwarf


HD 21693 b

0.1484 AU
22.7 Days

Very Hot
Neptunian

10.24 (EM)
HD 21693 c

0.264 AU
53.9 Days

Hot
Neptunian

20.6 (EM)










Sadalbari

106.100

Light
Years
G8III Dwarf





No Planets













Yed
Posterior

106.400

Light
Years
G9.5IIIb Dwarf





No Planets











HD 11964

107.0000

Light
Years
G5IV Dwarf | K Dwarf


HD 11964 b

0.229 AU
37.82 Days

Hot
Neptunian

25.1 (EM)
HD 21693 c

3.34 AU
2,210 Days

Freezing
Jovian

0.61 (EM)










Alhena

109.0000

Light
Years
A1.5IV SubGiant





No Planets











Cor Caroli

110.0000

Light
Years
A0p SubGiant | F SubGiant





No Planets











K2-18

111.0000

Light
Years
M SubDwarf


K2-18 b

0.1491 AU
32.939 Days


Cold

SubNeptunian

7.96 (EM)
17,736 Miles












BD-17 63

112.8490
Light
Years
K4V Dwarf



BD-17 63 b

1.340 AU
655.6 Days

Freezing
Jovian

0.51 (JM)












Miaplacidus

113.2000

Light
Years
A1III SubGiant





No Planets











HD 51608

113.5000

Light
Years
K0IV Dwarf


HD 51608 b

0.1059 AU
14.07 Days

Extremely Hot
Neptunian

13.13 (EM)
HD 51608 c

0.379 AU
95.4 Days

Hot
Neptunian

17.96 (EM)










HD 20782

115.8000

Light
Years
G1.5V Dwarf | G9.5V Dwarf


HD 20782 b

0.169 AU
29.15 Days

Very Hot
Neptunian

12.0 (EM)
HD 20782 c

0.346 AU
85.13 Days

Hot
Neptunian

15.8 (EM)
HD 20782 d

1.397 AU
597.07 Days

Cold
Jovian

1.43(JM)









Kepler 444

117.0000

Light
Years
K0V Dwarf | M SubDwarf | M SubDwarf



Kepler 444 b

0.04178 AU
3.600 Days

Inferno
Mercurian

0.0317 (EM)
3,191 Miles

Kepler 444 c

0.0488 AU
4.545 Days

Extremely Hot
SubTerran

0.953 (EM)
3,935 Miles

Kepler 444 d

0.06 AU
6.189 Days

Extremely Hot
SubTerran

0.953 (EM)
4,196 Miles

Kepler 444 e

0.0696 AU
7.743 Days

Extremely Hot
SubTerran

0.953 (EM)
4,323 Miles

Kepler 444 f

0.0811 AU
9.740 Days

Very Hot
SubTerran

0.254 (EM)
5,867 Miles








Mu Vela

117.0000

Light
Years
G5III Dwarf | G2V Dwarf





No Planets











Zeta Lupi

117.0000

Light
Years
G7III Dwarf





No Planets











2M-0122-2439

117.4160
Light
Years
M3.5 SubDwarf



2M-0122 b

? AU
? Days


Jovian

12.0 (JM)












Tau Sagittarius

122.0000

Light
Years
K1III Dwarf





No Planets











Dubhe

123.0000

Light
Years
K0III Dwarf | F0V





No Planets











HD 47186

123.4000

Light
Years
GV Dwarf


HD 47186 b

0.0500 AU
4.08 Days

Inferno
Neptunian

22.8 (EM)
HD 47186 c

2.40 AU
1,354 Days

Cold
Jovian

0.351 (JM)










HAT P-11

123.5000
Light
Years
K4 Dwarf



HAT P-11 b

0.0530 AU
4.887 Days

Extremely Hot
Neptunian

25.71 (EM)
36,264 Miles
1.44 Density

Hydrogen












Eta Cetus

123.9000

Light
Years
K1III Dwarf





No Planets











HD 215456

123.9000

Light
Years
G0.5V Dwarf


HD 215456 b

0.652 AU
192 Days

Hot
Neptunian

32.1 (EM)
HD 215456 c

3.39 AU
2,277 Days

Cold
Jovian

0.246 (JM)










Gamma Leonis

125.1250

Light
Years
K0III Dwarf | G7IIIb Dwarf


Gamma Leonis b

1.19 AU
429 Days

Warm
Jovian

8.78 (EM)
Gamma Leonis c

2.60 AU
1,340 Days

Cold
Jovian

2.14 (JM)










HD 31527

125.9000

Light
Years
G0V Dwarf


HD 31527 b

0.1253 AU
16.55 Days

Extremely Hot
Neptunian

11.54 (EM)
HD 31527 c

0.267 AU
51.3 Days

Very Hot
Neptunian

15.83 (EM)
HD 31527 c

0.818 AU
274 Days


Warm

Neptunian

16.50 (EM)








Theoretical Earth-like Planet

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