🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.5

Radius: 11.2

Gravity: 6.89 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.59 AU - 0.95 AU

Year: 443 Days

Day: 13.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,941,983 km

• M1: 139,276 km (0.098 R)
• M2: 576,849 km (0.093 R)
• M3: 1,042,248 km (0.079 R)
• M4: 1,517,371 km (0.112 R)
• M5: 1,890,767 km (0.099 R)
• M6: 2,440,390 km (0.099 R)
• M7: 2,882,302 km (0.089 R)
• M8: 3,389,589 km (0.109 R)
• M9: 3,996,806 km (0.047 R)
• M10: 4,907,558 km (0.062 R)
• M11: 5,278,710 km (0.111 R)
• M12: 6,224,767 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.8

Radius: 13.6

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.85 AU - 1.07 AU

Year: 617 Days

Day: 11.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,941,983 km

• M1: 169,195 km (0.094 R)
• M2: 791,822 km (0.115 R)
• M3: 1,237,773 km (0.071 R)
• M4: 1,667,717 km (0.08 R)
• M5: 2,352,576 km (0.118 R)
• M6: 3,016,641 km (0.074 R)
• M7: 3,483,536 km (0.117 R)
• M8: 4,851,609 km (0.088 R)
• M9: 5,321,645 km (0.094 R)
• M10: 7,407,189 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438

Radius: 9.9

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 3.74 AU - 4.16 AU

Year: 5150 Days

Day: 12.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 57,941,983 km

• M1: 123,269 km (0.052 R)
• M2: 506,688 km (0.111 R)
• M3: 879,785 km (0.076 R)
• M4: 1,226,553 km (0.112 R)
• M5: 2,121,896 km (0.098 R)
• M6: 2,847,446 km (0.107 R)
• M7: 5,222,611 km (0.108 R)
• M8: 5,602,291 km (0.112 R)
• M9: 6,326,045 km (0.118 R)
• M10: 7,854,337 km (0.109 R)
• M11: 8,172,980 km (0.079 R)
• M12: 8,798,599 km (0.101 R)
• M13: 9,298,256 km (0.106 R)
• M14: 9,695,288 km (0.071 R)
• M15: 10,523,612 km (0.043 R)
• M16: 11,398,460 km (0.072 R)
• M17: 12,655,381 km (0.078 R)
• M18: 13,242,703 km (0.111 R)
• M19: 15,060,018 km (0.12 R)
• M20: 16,284,027 km (0.117 R)
• M21: 19,375,019 km (0.107 R)
• M22: 20,089,498 km (0.111 R)
• M23: 23,124,540 km (0.074 R)
• M24: 24,600,173 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.1

Radius: 10.6

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 3.92 AU - 4.74 AU

Year: 5911 Days

Day: 9.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,941,983 km

• M1: 131,945 km (0.1 R)
• M2: 838,945 km (0.048 R)
• M3: 1,430,156 km (0.096 R)
• M4: 2,406,581 km (0.092 R)
• M5: 2,984,178 km (0.096 R)
• M6: 4,586,970 km (0.104 R)
• M7: 9,193,986 km (0.111 R)
• M8: 12,885,313 km (0.09 R)
• M9: 17,100,682 km (0.08 R)
• M10: 18,966,168 km (0.093 R)
• M11: 20,417,716 km (0.112 R)
• M12: 20,894,634 km (0.106 R)
• M13: 27,378,505 km (0.104 R)
• M14: 27,958,795 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427.6

Radius: 8.7

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 4.46 AU - 5.16 AU

Year: 6920 Days

Day: 5.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,941,983 km

• M1: 122,221 km (0.114 R)
• M2: 656,735 km (0.078 R)
• M3: 1,145,022 km (0.102 R)
• M4: 2,961,140 km (0.051 R)
• M5: 4,076,991 km (0.074 R)
• M6: 4,445,899 km (0.115 R)
• M7: 4,917,731 km (0.043 R)
• M8: 7,007,763 km (0.066 R)
• M9: 9,715,185 km (0.049 R)
• M10: 13,157,133 km (0.05 R)
• M11: 16,218,504 km (0.113 R)
• M12: 17,463,607 km (0.047 R)
• M13: 22,024,696 km (0.068 R)
• M14: 23,316,623 km (0.084 R)
• M15: 24,577,883 km (0.073 R)
• M16: 29,805,281 km (0.064 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 215.8

Radius: 4.8

Gravity: 9.37 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 9.07 AU - 10.23 AU

Year: 19665 Days

Day: 21.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,941,983 km

• M1: 59,839 km (0.113 R)
• M2: 315,352 km (0.12 R)
• M3: 1,345,932 km (0.038 R)
• M4: 1,597,855 km (0.106 R)
• M5: 1,831,228 km (0.106 R)
• M6: 2,328,042 km (0.095 R)
• M7: 2,977,746 km (0.116 R)
• M8: 4,535,359 km (0.037 R)
• M9: 5,069,423 km (0.105 R)
• M10: 5,402,578 km (0.1 R)
• M11: 5,750,243 km (0.109 R)
• M12: 8,567,171 km (0.067 R)
• M13: 15,855,878 km (0.115 R)
• M14: 16,423,453 km (0.047 R)
• M15: 20,529,615 km (0.106 R)
• M16: 22,329,726 km (0.045 R)
• M17: 41,057,584 km (0.077 R)
• M18: 46,440,714 km (0.101 R)
• M19: 49,225,778 km (0.049 R)
• M20: 49,825,964 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 257.3

Radius: 7.1

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 8.54 AU - 12.06 AU

Year: 21685 Days

Day: 24 Hours

Environment

Temp: -224 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,941,983 km

• M1: 88,562 km (0.104 R)
• M2: 472,729 km (0.113 R)
• M3: 2,505,465 km (0.106 R)
• M4: 3,931,582 km (0.1 R)
• M5: 5,016,465 km (0.086 R)
• M6: 12,336,439 km (0.117 R)
• M7: 13,611,312 km (0.067 R)
• M8: 14,971,755 km (0.08 R)
• M9: 22,779,866 km (0.112 R)
• M10: 28,396,369 km (0.113 R)
• M11: 35,743,270 km (0.064 R)
• M12: 39,112,064 km (0.099 R)
• M13: 40,599,067 km (0.107 R)
• M14: 41,010,910 km (0.04 R)
• M15: 49,534,099 km (0.107 R)
• M16: 51,594,062 km (0.036 R)
• M17: 53,710,572 km (0.083 R)
• M18: 54,706,595 km (0.107 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 384 - 16,489 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit