🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.44 AU - 0.74 AU

Year: 293 Days

Day: 13.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 24.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 84,192,149 km

• M1: 385,813 km (0.111 R)
• M2: 596,297 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.1

Radius: 14.7

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.84 AU - 0.86 AU

Year: 506 Days

Day: 5.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 52.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 84,192,149 km

• M1: 184,005 km (0.067 R)
• M2: 798,553 km (0.105 R)
• M3: 1,398,291 km (0.073 R)
• M4: 1,902,436 km (0.119 R)
• M5: 2,373,520 km (0.114 R)
• M6: 2,874,523 km (0.117 R)
• M7: 3,885,805 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.9

Radius: 12.2

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 3.12 AU - 4 AU

Year: 4337 Days

Day: 11.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 84,192,149 km

• M1: 151,692 km (0.105 R)
• M2: 658,979 km (0.102 R)
• M3: 1,201,121 km (0.106 R)
• M4: 1,625,231 km (0.091 R)
• M5: 2,474,199 km (0.074 R)
• M6: 2,903,545 km (0.089 R)
• M7: 4,005,333 km (0.087 R)
• M8: 5,103,382 km (0.092 R)
• M9: 5,758,172 km (0.059 R)
• M10: 6,341,903 km (0.11 R)
• M11: 6,991,606 km (0.088 R)
• M12: 7,771,609 km (0.097 R)
• M13: 8,302,981 km (0.08 R)
• M14: 10,497,731 km (0.066 R)
• M15: 11,558,380 km (0.104 R)
• M16: 13,935,042 km (0.051 R)
• M17: 14,632,018 km (0.078 R)
• M18: 15,352,182 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.8

Radius: 11.8

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 3.57 AU - 4.25 AU

Year: 4992 Days

Day: 11.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 84,192,149 km

• M1: 147,504 km (0.066 R)
• M2: 658,081 km (0.113 R)
• M3: 1,030,281 km (0.074 R)
• M4: 1,538,165 km (0.068 R)
• M5: 2,079,261 km (0.079 R)
• M6: 2,557,824 km (0.114 R)
• M7: 3,364,007 km (0.1 R)
• M8: 4,028,371 km (0.112 R)
• M9: 4,651,596 km (0.117 R)
• M10: 5,255,523 km (0.099 R)
• M11: 6,430,315 km (0.041 R)
• M12: 7,560,228 km (0.073 R)
• M13: 8,135,731 km (0.118 R)
• M14: 10,167,718 km (0.047 R)
• M15: 11,650,533 km (0.092 R)
• M16: 12,517,751 km (0.084 R)
• M17: 14,380,843 km (0.061 R)
• M18: 16,961,407 km (0.06 R)
• M19: 18,075,163 km (0.039 R)
• M20: 18,974,695 km (0.07 R)
• M21: 19,435,456 km (0.096 R)
• M22: 22,651,810 km (0.115 R)
• M23: 23,395,312 km (0.042 R)
• M24: 24,386,099 km (0.082 R)
• M25: 25,643,768 km (0.11 R)
• M26: 28,117,518 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.2

Radius: 12.5

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 4.37 AU - 6.35 AU

Year: 8012 Days

Day: 9.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 84,192,149 km

• M1: 155,582 km (0.111 R)
• M2: 634,145 km (0.068 R)
• M3: 1,047,933 km (0.099 R)
• M4: 1,613,114 km (0.102 R)
• M5: 2,188,617 km (0.105 R)
• M6: 2,716,548 km (0.046 R)
• M7: 3,757,300 km (0.092 R)
• M8: 4,570,963 km (0.112 R)
• M9: 5,269,735 km (0.063 R)
• M10: 6,450,361 km (0.083 R)
• M11: 7,800,183 km (0.046 R)
• M12: 8,289,517 km (0.085 R)
• M13: 8,719,611 km (0.104 R)
• M14: 9,539,856 km (0.103 R)
• M15: 12,361,870 km (0.066 R)
• M16: 14,715,045 km (0.032 R)
• M17: 15,115,219 km (0.085 R)
• M18: 16,604,167 km (0.066 R)
• M19: 17,100,832 km (0.063 R)
• M20: 21,146,856 km (0.063 R)
• M21: 21,878,240 km (0.078 R)
• M22: 22,626,379 km (0.11 R)
• M23: 27,651,222 km (0.088 R)
• M24: 28,173,767 km (0.111 R)
• M25: 31,733,000 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 817.2

Radius: 3.6

Gravity: 63.06 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 10.18 AU - 10.4 AU

Year: 21313 Days

Day: 24.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 84,192,149 km

• M1: 55,950 km (0.107 R)
• M2: 256,411 km (0.106 R)
• M3: 990,488 km (0.076 R)
• M4: 1,150,856 km (0.076 R)
• M5: 2,075,820 km (0.071 R)
• M6: 2,339,561 km (0.106 R)
• M7: 5,759,817 km (0.078 R)
• M8: 12,360,823 km (0.116 R)
• M9: 13,221,460 km (0.108 R)
• M10: 15,061,214 km (0.117 R)
• M11: 17,064,629 km (0.109 R)
• M12: 17,591,812 km (0.12 R)
• M13: 21,085,521 km (0.066 R)
• M14: 28,050,050 km (0.105 R)
• M15: 28,293,296 km (0.065 R)
• M16: 30,802,800 km (0.085 R)
• M17: 32,779,586 km (0.088 R)
• M18: 37,865,166 km (0.047 R)
• M19: 44,764,171 km (0.119 R)
• M20: 46,102,324 km (0.047 R)
• M21: 65,142,991 km (0.086 R)
• M22: 71,735,919 km (0.072 R)
• M23: 75,427,546 km (0.103 R)
• M24: 79,973,227 km (0.117 R)
• M25: 82,936,312 km (0.117 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 523 - 12,695 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit