Milky Way Galaxy Star and Planet Atlas                               4,197 Planets Discovered and counting....
Terran Sized Planets: 16
Terran Sized Planets in Hab Zone: 6
Earthlike Planet Candidates: 5
Truly Earthlike Planets: 1
Milky Way Galaxy Star and Planet Atlas
Notable Planet within
21 to 30 Light Years
HR 7722 b

Planet HR 7722 b
Theoretical Image of Planet HR 7722 b
Based on Current Known Data


Planet HR 7722 b Overview

28.9600 Light Years from Earth

Orbits in the Habitable Zone at 0.320 AU
Orbits its Star every 74.72 Days

Has a Mass 16.9 times that of Earth
Has a Diameter of 27,713 Miles

HR 7722 b is a Hot Neptunian Planet
Average Temp could be 138 Degrees

Does HR 7722 b have habitable moons
that orbit around it?



Star & Planets by Light Year

Planets within 0 to 10 Light Years
(20 Stars & 15 Planets)
Planets within 11 to 20 Light Years
(70 Stars & 36 Planets)
Planets within 21 to 30 Light Years
(38 Stars & 15 Planets)
Planets within 31 to 40 Light Years
(32 Stars & 28 Planets)
Planets within 41 to 50 Light Years
(57 Stars & 28 Planets)
Planets within 51 to 60 Light Years
(46 Stars & 21 Planets)
Planets within 61 to 70 Light Years
(17 Stars & 11 Planets)
Planets within 71 to 80 Light Years
(25 Stars & 6 Planets)
Planets within 81 to 90 Light Years
(17 Stars & 13 Planets)
Planets within 101 to 125 Light Years
(34 Stars & 27 Planets)
Planets within 126 to 150 Light Years
(56 Stars & 41 Planets)
Planets within 151 to 175 Light Years
(40 Stars & 23 Planets)
Planets within 176 to 200 Light Years
(23 Stars & 11 Planets)
Planets within 201 to 400 Light Years
(112 Stars & 45 Planets)
Planets within 401 to 600 Light Years
(102 Stars & 32 Planets)
Planets within 601 to 800 Light Years
(28 Stars & 20 Planets)

Star Systems and ExoPlanets: 21 to 30 Light Years Away from Earth

There are currently 38 Total Stars and 15 Total Planets listed within 21 to 30 Light Years from our Solar System.
The stars within 21 to 30 Light Years represent 24 Star Systems and 8 of these Star Systems have multiple planets.

The Total Star Count within 21 to 30 Light Years includes 0 Wolf Rayet stars, 0 O Stars, 0 B Stars, 2 A Stars, 0 F Stars, 13 G Stars,
6 K Stars, 17 M Stars, 0 L Brown Dwarfs, 0 T Brown Dwarfs, 0 Y Brown Dwarfs, 0 Sub Brown Dwarf, 0 White Dwarfs,
0 Neutron Stars, and 0 Black Holes.

WR
Stars
Wolf Rayet Class Stars
O
Stars
O Class Stars
B
Stars
B Class Stars
A
Stars
A Class Stars
F
Stars
F Class Stars
G
Stars
G Class Stars
K
Stars
K Class Stars
M
Stars
M Class Stars
L
Brown
Dwarf
L Class Brown Dwarfs
T
Brown
Dwarf
T Class Brown Dwarfs
Y
Brown Dwarf
Y Class Brown Dwarfs
Sub
Brown Dwarf
Sub Class Brown Dwarfs
White
Dwarf
Stars
White Dwarf Class Stars
Neutron
Stars
Neutron Class Stars
Black
Holes
Black Holes
0 0 0 2 0 13 6 17 0 0 0 0 0 0 0

The Total Planet Count within 21 to 30 Light Years includes 0 Mercurian planets, 0 Sub-Terran planets, 0 Terran planets (Earth-Size), 0 Super Terran planets, 4 Sub-Neptunian planets, 9 Neptunian planets, 2 Jovian planets, and 3 Super Jovian planets.

Super Jovian
Planets
Jovian
Planets
Neptunian
Planets
Sub Neptunian
Planets
Super Terran
Planets
Terran
Planets
Sub Terran
Planets
Mercurian
Planets
Super Jovian Sized Planets Jovian Sized Planets Neptunian Sized Planets Sub Neptunian Planets Super Terran Sized Planets Terran Sized Planets Sub Terran Sized Planets Mercurian Sized Planets
3 2 9 4 0 0 0 0

There are 0 planets within 21 to 30 Light Years that orbit in the habitable zone of their star that might potentially harbor intelligent Alien life.

The most notable planet within 21 to 30 Light Years is planet HR722 b. HR722 b is a Neptunian-sized planet that orbits within the habitable zone of its star. Does HR722 b have moons orbiting this planet that may be habitable?

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

Gliese 625

1 Star

1 Planet

21.3000

Light
Years
M2V SubDwarf
Gliese 625 - M2V SubDwarf

Age: ?
Lifetime: 10 Trillion Years
Destiny: White Dwarf

Mass = ?
? ° F
Luminosity = ?

Gliese 625 Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
276,394 Years 428.63 Years 214.32 Years 107.16 Years
Gliese 625 b

0.0783 AU
14.628 Days



Hot

Sub Neptunian

2.82 (EM)













Xi Bootis

2 Stars

21.8900

Light
Years
G8Ve Dwarf | K4Ve Dwarf
Xi Bootis A - G8Ve Dwarf Xi Bootis B - K4Ve Dwarf

Age: 200 Million Yrs | ?
Lifetime: 10 Billion Yrs | 20 Billion Yrs
Destiny: White Dwarf | White Dwarf

Mass = 0.900 | 0.660
9,532 ° F | 7,370 ° F
Luminosity = 0.6041 | 0.061

Habitable Zone
0.749 AU to 1.329 AU


Xi Bootis Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
284,050 Years 440.51 Years 220.25 Years 110.13 Years



No Planets













Gliese 667

3 Stars

2 Planets

22.6500

Light
Years
K3V Dwarf | K5V Dwarf | M1.5V SubDwarf
Gliese 667 A - K3V Dwarf Gliese 667 B - K5V Dwarf
Gliese 667 C - M1.5V SubDwarf

Age: ? | ? | ?
Lifetime: 20 Billion Yrs | 20 Billion Yrs | 10 Trillion Yrs
Destiny: White Dwarf | White Dwarf | White Dwarf

Mass = 0.730 | 0.690 | 0.310
? ° F | ? ° F | 6,200 ° F
Luminosity = 0.130 | 0.050 | 0.0137

Habitable Zone
0.110 AU to 0.617 AU


Gliese 667 Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
293,912 Years 455.80 Years 227.90 Years 113.95 Years
Gliese 667 b
Gliese 667 b - Hot Sub Neptunian
0.0500 AU
7.2006 Days

Hot
Sub Neptunian

5.661 (EM)
Gliese 667 c
Gliese 667 c - Cold Sub Neptunian
0.1250 AU
28.143 Days


Cold
Sub Neptunian

3.709 (EM)
12,193 Miles

Habitable
Moons?











Beta Hydri

1 Star

24.3300

Light
Years
G2IV Dwarf
Beta Hydri - G2IV Dwarf

Age: 6.40 Billion Years
Lifetime: 10 Billion Years
Destiny: White Dwarf

Mass = 1.08
10,109 ° F
Luminosity = 3.494

Habitable Zone
1.931 AU to 3.716 AU


Beta Hydri Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
315,712 Years 489.61 Years 244.80 Years 122.40 Years



No Planets













Mu
Cassiopeiae

2 Stars

24.6000

Light
Years
sdG5p Dwarf | M5V Dwarf
Mu Cassiopeiae - sdG5p Dwarf Mu Cassiopeiae - M5V SubDwarf

Age: 3.1 to 5.9 Billion Years | ?
Lifetime: 10 Billion Yrs | 10 Trillion Yrs
Destiny: White Dwarf | White Dwarf

Mass = 0.740 | 0.170
9,154 ° F | 4,985 ° F
Luminosity = 0.442 | 0.0062

Habitable Zone
0.648 AU to 1.159 AU


Mu Cassiopeiae Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
319,215 Years 495.04 Years 247.52 Years 123.76 Years



No Planets













Formalhaut

3 Stars

1 Planet

1 Asteroid Belt

1 Kuiper Belt

25.1070

Light
Years
A3V SubGiant | K5Vp Dwarf | M4V SubDwarf
Formalhaut A - A3V SubGiant Formalhaut B - K5Vp Dwarf
Formalhaut C - M4V SubDwarf

Age: 4.4 Billion Yrs | 4.4 Billion Yrs | ?
Lifetime: 3 Billion Yrs | 30 Billion Yrs | 10 Trillion Yrs
Destiny: Neutron Star | White Dwarf | White Dwarf

Mass = 1.92 | 0.725 | 0.180
15,002 ° F | 8,020 ° F | 5,177 ° F
Luminosity = 16.63 | 0.190 | 0.004603

Habitable Zone
3.575 AU to 6.169 AU


Formalhaut Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
325,794 Years 505.25 Years 252.62 Years 126.31 Years
Asteroid Belt
Asteroid Belt
8-10 AU
Kuiper Belt
Kuiper Belt
133-150 AU
Dagon
Dagon - Freezing Super Jovian 177 AU
1,700 Years

Freezing

Super Jovian

2 (JM)









Vega

1 Star

1 Asteroid Belt

1 Kuiper Belt

25.3000

Light
Years
A0Va SubGiant
Vega - A0Va SubGiant

Age: 455 Million Years
Lifetime: 3 Billion Yrs
Destiny: Neutron Star

Mass = 2.135
16,823 ° F
Luminosity = 40.12

Habitable Zone
6.428 AU to 11.215 AU


Vega Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
328,298 Years 509.13 Years 254.56 Years 127.28 Years
Asteroid Belt
Asteroid Belt
11-14 AU

Kuiper Belt
Kuiper Belt
90-120 AU










Mu
Herculis

3 Stars

27.1100

Light
Years
G5IV Dwarf | M3.5V SubDwarf | M4V SubDwarf
Mu Herculis A - G5IV Dwarf Mu Herculis - M3.5V SubDwarf
Mu Herculis - M4V SubDwarf

Age: 7.8 Billion Yrs | ? | ?
Lifetime: 10 Billion Yrs | 10 Trillion Yrs | 10 Trillion Yrs
Destiny: White Dwarf | White Dwarf | White Dwarf

Mass = 1.11 | 0.440 | 0.32
9,548 ° F | 6,830 ° F | ? ° F
Luminosity = 2.54 | 0.087 | ?

Habitable Zone
1.535 AU to 2.721 AU


Mu Herculis Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
351,785 Years 545.55 Years 272.78 Years 136.39 Years





No Planets











Chara

1 Star

27.5300

Light
Years
G0V Dwarf
Chara - G0V Dwarf

Age: 5.3 Billion Yrs
Lifetime: 10 Billion Yrs
Destiny: White Dwarf

Mass = 1.025
9,715 ° F
Luminosity = 1.151

Habitable Zone
1.027 AU to 1.819 AU


Chara Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
357,235 Years 554.00 Years 277.00 Years 138.50 Years



No Planets











61 Virginis

1 Star

3 Planets

27.7880

Light
Years
G7V Dwarf
61 Virginis - G7V Dwarf

Age: 6.1 Billion Yrs
Lifetime: 10 Billion Yrs
Destiny: White Dwarf

Mass = 0.930
9,508 ° F
Luminosity = 0.8222

Habitable Zone
0.874 AU to 1.553 AU


61 Virginis Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
357,235 Years 554.00 Years 277.00 Years 138.50 Years
61 Virginis b
61 Virginis b - Extremely Hot Sub Neptunian
0.0502 AU
4.2150 Days

Extremely Hot
Sub Neptunian

5.1 (EM)
12,668 Miles
61 Virginis c
61 Virginis c - Extremely Hot Neptunian
0.2175 AU
38.021 Days

Extremely Hot
Neptunian

18.8 (EM)
61 Virginis d
61 Virginis d - Hot Neptunian
0.4760 AU
123.01 Days

Hot
Neptunian

23.7 (EM)









Chi Orionis

2 Stars

28.2600

Light
Years
G0V Dwarf | M6 SubDwarf
Chi Orionis A - G0V Dwarf Chi Orionis B - M6V SubDwarf

Age: 400 Million Yrs | ?
Lifetime: 10 Billion Yrs | 10 Trillion Yrs
Destiny: White Dwarf | White Dwarf

Mass = 0.979 | ?
10,259 ° F | ?
Luminosity = 1.081 | ?

Habitable Zone
0.853 AU to 1.496 AU


Chi Orionis Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
366,708 Years 568.70 Years 284.35 Years 142.17 Years



No Planets











Gliese 849

1 Star

2 Planets

28.6000

Light
Years
M3.5V SubDwarf
Gliese 849 - M3.5V SubDwarf

Age: ?
Lifetime: 10 Trillion Yrs
Destiny: White Dwarf

Mass = 0.360
6,022 ° F
Luminosity = 0.029

Habitable Zone
0.176 AU to 0.341 AU


Gliese 849 Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
371,120 Years 575.54 Years 287.77 Years 143.88 Years
Gliese 849 b
Gliese 849 b - Freezing Jovian
2.35 AU
5.178 Years

Freezing
Jovian

0.82 (JM)
Gliese 849 c
Gliese 849 c - Freezing Jovian
5.1182 AU
19 Years

Freezing
Jovian

0.77 (JM)










41 Arae

28.7000

Light
Years
G8V Dwarf | M0V SubDwarf
41 Arae A - G8V Dwarf 41 Arae B - M0V SubDwarf

41 Arae Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
372,418 Years 577.55 Years 288.77 Years 144.39 Years



No Planets











HR 7722

28.9600

Light
Years
K2V Dwarf
HR 7722 - K2V Dwarf

HR 7722 Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
375,791 Years 582.78 Years 291.39 Years 145.70 Years
HR 7722 b
HR 7722 b - Hot Neptunian
0.320 AU
74.72 Days


Hot
Neptunian

16.9 (EM)
27,713 Miles

HR 7722 c
HR 7722 c - Cold Neptunian
1.180 AU

Cold
Neptunian

24.0 (EM)










Alula Australis

29.0000

Light
Years
G0Ve Dwarf | G0Ve Dwarf
Alula Australis A - G0Ve Dwarf Alula Australis B - G0Ve Dwarf

Alula Australis Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
376,311 Years 583.59 Years 291.79 Years 145.90 Years



No Planets











Gliese 433

29.5000

Light
Years
M1.5V SubDwarf
Gliese 433 - M1.5V SubDwarf

Gliese 433 Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
382,799 Years 593.65 Years 296.82 Years 148.41 Years
Gliese 433 b
Gliese 433 b - Hot Sub Neptunian
0.054 AU
7 Days



Hot

Sub Neptunian

6.0 (EM)
Gliese 433 c
Gliese 433 c - Freezing Sub Neptunian
3.60 AU
10.11 Years

Freezing
Sub Neptunian

5.223 (EM)
Gliese 433 c
Gliese 433 d - Freezing Neptunian
3.60 AU
10.11 Years

Freezing
Neptunian

28.78 (EM)









Groombridge
1830

29.7000

Light
Years
G8Vlp Dwarf
Groombridge 1830 - G8Vlp  Dwarf

Groombridge 1830 Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
385,394 Years 597.67 Years 298.84 Years 149.42 Years



No Planets











Gliese 317

29.8025

Light
Years
M2.5V SubDwarf
Gliese 317 - M2.5V SubDwarf

Gliese 317 Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
386,724 Years 599.74 Years 299.87 Years 149.93 Years
Gliese 317 b
Gliese 317 b - Freezing Jovian
1.148 AU
1.89 Years

Freezing
Jovian

1.80 (JM)
Gliese 317 c
Gliese 317 c - Freezing Jovian
30 AU
19.45 Years

Freezing
Jovian

2.0 (JM)










Kappa Ceti

29.8100

Light
Years
G5Vv Dwarf
Kappa Ceti - G5V Dwarf

Kappa Ceti Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
386,821 Years 599.89 Years 299.94 Years 149.97 Years



No Planets











HD 102365

30.1400

Light
Years
G2V Dwarf | M4V SubDwarf
HD 102365 A - G2V Dwarf HD 102365 B - M4V SubDwarf

HD 102365 Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
391,103 Years 606.53 Years 303.26 Years 151.63 Years
HD 102365 b
HD 102365 b - Hot Neptunian
0.46 AU
122.1 Days

Hot
Neptunian

15.87 (EM)











Gliese 176

30.7240

Light
Years
M2.5V SubDwarf
Gliese 176 - M2.5V SubDwarf

Gliese 176 Travel Time
Chemical
Rocket
Fission
Rocket
Fusion
Rocket
Laser
Sail
398,682 Years 618.28 Years 309.14 Years 154.57 Years
Gliese 176 b
Gliese 176 - Hot SubNeptunian
0.066 AU
8.7836 Days

Hot
SubNeptunian

8.40 (EM)










Theoretical Earth-like Planet

© Copyright 2020
Milky Way Galaxy Star and Planet Atlas.
All Rights Reserved.

Miky Way Galaxy By the Numbers


400 Billion
Estimated Total Stars

3 Trillion
Estimated Total Planets

4,197
Total Planets Discovered

0
Truly Earth-Like Planets Discovered

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