🌌 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: 4.27

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.58 AU - 0.6 AU

Year: 293 Days

Day: 29.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.6

Radius: 11.8

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.59 AU - 0.79 AU

Year: 370 Days

Day: 11.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,723,450 km

• M1: 147,204 km (0.077 R)
• M2: 379,231 km (0.047 R)
• M3: 740,210 km (0.06 R)
• M4: 1,096,702 km (0.084 R)
• M5: 1,536,669 km (0.084 R)
• M6: 1,761,964 km (0.105 R)
• M7: 2,071,631 km (0.068 R)
• M8: 2,383,842 km (0.097 R)
• M9: 2,647,882 km (0.072 R)
• M10: 2,913,119 km (0.084 R)
• M11: 3,350,544 km (0.03 R)
• M12: 3,657,518 km (0.119 R)
• M13: 4,230,478 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.1

Radius: 10.2

Gravity: 8.92 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.02 AU - 3.2 AU

Year: 3541 Days

Day: 6.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,723,450 km

• M1: 130,001 km (0.117 R)
• M2: 331,509 km (0.105 R)
• M3: 559,795 km (0.101 R)
• M4: 2,198,341 km (0.093 R)
• M5: 2,395,062 km (0.072 R)
• M6: 2,934,811 km (0.115 R)
• M7: 3,145,295 km (0.046 R)
• M8: 6,600,856 km (0.068 R)
• M9: 7,271,205 km (0.106 R)
• M10: 8,148,446 km (0.116 R)
• M11: 9,575,311 km (0.04 R)
• M12: 9,797,763 km (0.111 R)
• M13: 10,185,221 km (0.117 R)
• M14: 10,580,309 km (0.091 R)
• M15: 11,705,884 km (0.093 R)
• M16: 14,361,695 km (0.092 R)
• M17: 15,832,990 km (0.082 R)
• M18: 16,201,749 km (0.096 R)
• M19: 17,762,952 km (0.07 R)
• M20: 19,987,622 km (0.095 R)
• M21: 22,344,387 km (0.109 R)
• M22: 22,538,714 km (0.116 R)

Asteroid Belt

Center: 3.48 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.3

Radius: 8.1

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 3.37 AU - 4.33 AU

Year: 4878 Days

Day: 6.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 35,723,450 km

• M1: 100,829 km (0.083 R)
• M2: 292,165 km (0.097 R)
• M3: 984,952 km (0.118 R)
• M4: 1,301,202 km (0.108 R)
• M5: 1,458,280 km (0.118 R)
• M6: 2,230,953 km (0.08 R)
• M7: 2,708,619 km (0.086 R)
• M8: 3,119,714 km (0.059 R)
• M9: 4,414,035 km (0.079 R)
• M10: 4,956,626 km (0.111 R)
• M11: 5,305,040 km (0.118 R)
• M12: 5,607,676 km (0.078 R)
• M13: 6,057,816 km (0.108 R)
• M14: 6,443,031 km (0.103 R)
• M15: 6,755,690 km (0.103 R)
• M16: 8,717,367 km (0.027 R)
• M17: 9,831,273 km (0.103 R)
• M18: 12,347,958 km (0.1 R)
• M19: 13,103,128 km (0.118 R)
• M20: 13,399,631 km (0.102 R)
• M21: 13,911,405 km (0.081 R)
• M22: 14,838,014 km (0.083 R)
• M23: 15,794,842 km (0.085 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 551.7

Radius: 5.2

Gravity: 20.4 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 5.48 AU - 8.58 AU

Year: 12035 Days

Day: 19.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 35,723,450 km

• M1: 126,410 km (0.12 R)
• M2: 290,818 km (0.111 R)
• M3: 437,424 km (0.102 R)
• M4: 1,198,578 km (0.104 R)
• M5: 1,941,780 km (0.116 R)
• M6: 2,638,607 km (0.113 R)
• M7: 3,393,179 km (0.026 R)
• M8: 3,497,598 km (0.116 R)
• M9: 4,186,646 km (0.108 R)
• M10: 4,450,237 km (0.109 R)
• M11: 5,619,345 km (0.11 R)
• M12: 7,768,917 km (0.117 R)
• M13: 8,618,782 km (0.027 R)
• M14: 8,911,844 km (0.088 R)
• M15: 9,954,392 km (0.074 R)
• M16: 10,314,923 km (0.102 R)
• M17: 11,386,941 km (0.115 R)
• M18: 12,512,516 km (0.057 R)
• M19: 15,475,601 km (0.103 R)
• M20: 15,811,897 km (0.115 R)
• M21: 18,267,097 km (0.114 R)
• M22: 18,571,229 km (0.088 R)
• M23: 19,125,041 km (0.04 R)
• M24: 19,311,440 km (0.115 R)
• M25: 20,257,048 km (0.045 R)
• M26: 22,686,517 km (0.086 R)
• M27: 23,093,573 km (0.117 R)
• M28: 24,969,829 km (0.066 R)
• M29: 25,254,065 km (0.092 R)
• M30: 26,407,166 km (0.119 R)
• M31: 26,699,330 km (0.079 R)
• M32: 28,790,559 km (0.071 R)
• M33: 33,291,660 km (0.092 R)
• M34: 34,948,606 km (0.074 R)
• M35: 37,076,486 km (0.105 R)
• M36: 38,824,238 km (0.092 R)
• M37: 42,440,467 km (0.115 R)
• M38: 42,625,520 km (0.091 R)
• M39: 45,163,148 km (0.112 R)
• M40: 46,701,613 km (0.094 R)
• M41: 47,774,230 km (0.108 R)
• M42: 48,364,393 km (0.116 R)
• M43: 49,156,963 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 16.4

Radius: 4.9

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 5.88 AU - 8.86 AU

Year: 12919 Days

Day: 19.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,723,450 km

• M1: 113,994 km (0.113 R)
• M2: 371,900 km (0.093 R)
• M3: 549,623 km (0.119 R)
• M4: 714,031 km (0.092 R)
• M5: 1,992,943 km (0.028 R)
• M6: 2,320,113 km (0.114 R)
• M7: 2,968,321 km (0.12 R)
• M8: 11,038,528 km (0.089 R)
• M9: 14,795,080 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 118.1

Radius: 6.2

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 7.32 AU - 9.32 AU

Year: 15495 Days

Day: 18.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,723,450 km

• M1: 661,073 km (0.112 R)
• M2: 1,323,642 km (0.113 R)
• M3: 3,074,984 km (0.048 R)
• M4: 3,982,595 km (0.1 R)
• M5: 7,489,318 km (0.103 R)
• M6: 9,790,133 km (0.106 R)
• M7: 19,021,070 km (0.105 R)
• M8: 21,047,523 km (0.118 R)
• M9: 23,638,259 km (0.11 R)
• M10: 24,104,256 km (0.113 R)
• M11: 30,577,057 km (0.085 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: 257 - 12,209 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit