🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628.5

Radius: 12.2

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.67 AU - 0.97 AU

Year: 487 Days

Day: 10.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,839,408 km

• M1: 151,991 km (0.042 R)
• M2: 603,927 km (0.1 R)
• M3: 1,127,370 km (0.062 R)
• M4: 1,777,971 km (0.053 R)
• M5: 2,470,908 km (0.039 R)
• M6: 2,865,098 km (0.119 R)
• M7: 3,313,294 km (0.082 R)
• M8: 3,731,120 km (0.092 R)
• M9: 4,225,841 km (0.116 R)
• M10: 4,688,846 km (0.115 R)
• M11: 5,201,668 km (0.107 R)
• M12: 5,717,481 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.1

Radius: 10.5

Gravity: 6.99 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.88 AU - 1.34 AU

Year: 767 Days

Day: 5.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,839,408 km

• M1: 131,048 km (0.099 R)
• M2: 541,095 km (0.113 R)
• M3: 1,266,346 km (0.119 R)
• M4: 1,739,225 km (0.095 R)
• M5: 2,224,670 km (0.045 R)
• M6: 2,681,243 km (0.069 R)
• M7: 3,057,780 km (0.067 R)
• M8: 3,539,635 km (0.041 R)
• M9: 3,964,044 km (0.096 R)
• M10: 4,605,221 km (0.078 R)
• M11: 5,407,813 km (0.039 R)
• M12: 6,882,699 km (0.081 R)
• M13: 8,583,477 km (0.113 R)
• M14: 8,923,064 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64

Radius: 14.3

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.8 AU - 2 AU

Year: 1718 Days

Day: 11.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 28,839,408 km

• M1: 184,454 km (0.049 R)
• M2: 666,159 km (0.085 R)
• M3: 1,535,622 km (0.105 R)
• M4: 2,059,215 km (0.042 R)
• M5: 2,744,523 km (0.094 R)
• M6: 3,865,759 km (0.115 R)
• M7: 4,311,261 km (0.098 R)
• M8: 4,760,204 km (0.061 R)
• M9: 5,717,930 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.4

Radius: 14.3

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.01 AU - 3.21 AU

Year: 2766 Days

Day: 7.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 28,839,408 km

• M1: 177,872 km (0.103 R)
• M2: 666,159 km (0.032 R)
• M3: 1,304,643 km (0.107 R)
• M4: 1,790,836 km (0.072 R)
• M5: 2,502,024 km (0.111 R)
• M6: 2,958,447 km (0.116 R)
• M7: 3,489,520 km (0.083 R)
• M8: 4,958,571 km (0.11 R)
• M9: 5,428,159 km (0.12 R)
• M10: 5,927,516 km (0.082 R)
• M11: 6,457,392 km (0.111 R)
• M12: 7,018,982 km (0.079 R)
• M13: 8,342,924 km (0.112 R)
• M14: 8,831,211 km (0.119 R)
• M15: 10,372,817 km (0.055 R)
• M16: 10,897,158 km (0.118 R)
• M17: 13,315,108 km (0.099 R)
• M18: 13,886,871 km (0.063 R)
• M19: 14,475,090 km (0.104 R)
• M20: 15,859,469 km (0.118 R)
• M21: 16,448,136 km (0.085 R)
• M22: 18,653,658 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.6

Radius: 14.9

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.53 AU - 3.13 AU

Year: 3123 Days

Day: 5.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 28,839,408 km

• M1: 185,352 km (0.078 R)
• M2: 799,601 km (0.071 R)
• M3: 1,467,705 km (0.06 R)
• M4: 2,200,734 km (0.1 R)
• M5: 2,827,998 km (0.037 R)
• M6: 3,704,492 km (0.041 R)
• M7: 4,428,546 km (0.114 R)
• M8: 4,895,441 km (0.117 R)
• M9: 5,438,331 km (0.068 R)
• M10: 7,103,954 km (0.095 R)
• M11: 7,637,420 km (0.1 R)
• M12: 8,458,413 km (0.073 R)
• M13: 9,369,015 km (0.058 R)
• M14: 10,077,511 km (0.082 R)
• M15: 11,675,067 km (0.102 R)
• M16: 12,306,370 km (0.111 R)
• M17: 13,597,100 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.6

Radius: 8.5

Gravity: 9.36 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 3.8 AU - 4.26 AU

Year: 5307 Days

Day: 10.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 28,839,408 km

• M1: 105,766 km (0.097 R)
• M2: 411,394 km (0.085 R)
• M3: 898,186 km (0.103 R)
• M4: 1,397,543 km (0.099 R)
• M5: 2,367,087 km (0.036 R)
• M6: 3,101,762 km (0.081 R)
• M7: 3,447,932 km (0.12 R)
• M8: 4,315,899 km (0.071 R)
• M9: 5,294,269 km (0.066 R)
• M10: 7,219,144 km (0.108 R)
• M11: 7,610,343 km (0.11 R)
• M12: 8,869,209 km (0.1 R)
• M13: 10,529,745 km (0.112 R)
• M14: 10,802,462 km (0.114 R)
• M15: 12,539,144 km (0.092 R)
• M16: 14,734,792 km (0.086 R)
• M17: 17,872,906 km (0.085 R)
• M18: 18,589,630 km (0.097 R)
• M19: 23,839,617 km (0.118 R)
• M20: 26,008,039 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.1

Radius: 10

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 4.41 AU - 5.35 AU

Year: 7072 Days

Day: 8.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 28,839,408 km

• M1: 129,701 km (0.093 R)
• M2: 1,103,135 km (0.117 R)
• M3: 1,757,476 km (0.118 R)
• M4: 2,387,283 km (0.089 R)
• M5: 4,347,165 km (0.111 R)
• M6: 5,229,642 km (0.118 R)
• M7: 5,870,968 km (0.073 R)
• M8: 6,293,582 km (0.091 R)
• M9: 6,947,924 km (0.096 R)
• M10: 7,877,225 km (0.032 R)
• M11: 10,537,524 km (0.113 R)
• M12: 10,871,427 km (0.112 R)
• M13: 13,521,404 km (0.11 R)
• M14: 14,728,210 km (0.071 R)
• M15: 19,987,173 km (0.118 R)
• M16: 23,516,336 km (0.088 R)
• M17: 23,923,392 km (0.116 R)
• M18: 24,501,139 km (0.093 R)
• M19: 25,003,788 km (0.11 R)
• M20: 27,530,646 km (0.029 R)
• M21: 32,479,493 km (0.116 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.2

Radius: 14.5

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 5.12 AU - 6.28 AU

Year: 8927 Days

Day: 9.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 28,839,408 km

• M1: 181,013 km (0.104 R)
• M2: 725,849 km (0.093 R)
• M3: 1,440,927 km (0.114 R)
• M4: 2,288,548 km (0.12 R)
• M5: 3,572,696 km (0.106 R)
• M6: 4,351,054 km (0.1 R)
• M7: 4,974,578 km (0.039 R)
• M8: 6,126,332 km (0.052 R)
• M9: 6,911,870 km (0.102 R)
• M10: 7,942,301 km (0.098 R)
• M11: 8,532,614 km (0.054 R)
• M12: 12,563,379 km (0.086 R)
• M13: 13,728,297 km (0.108 R)
• M14: 15,130,628 km (0.047 R)
• M15: 17,410,499 km (0.118 R)
• M16: 19,248,309 km (0.088 R)
• M17: 21,848,320 km (0.108 R)
• M18: 22,569,681 km (0.06 R)
• M19: 23,232,400 km (0.097 R)
• M20: 25,854,252 km (0.068 R)
• M21: 26,825,142 km (0.106 R)
• M22: 27,402,440 km (0.072 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 514 - 13,150 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit