🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.7

Radius: 11.4

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.51 AU - 0.51 AU

Year: 247 Days

Day: 14.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 58,135,837 km

• M1: 141,819 km (0.094 R)
• M2: 813,812 km (0.08 R)
• M3: 1,401,134 km (0.109 R)
• M4: 1,939,387 km (0.102 R)
• M5: 2,345,246 km (0.113 R)
• M6: 2,798,976 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.6

Radius: 12.6

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.42 AU - 0.7 AU

Year: 284 Days

Day: 13.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,135,837 km

• M1: 156,779 km (0.031 R)
• M2: 722,109 km (0.107 R)
• M3: 1,120,338 km (0.12 R)
• M4: 1,576,462 km (0.109 R)
• M5: 2,443,681 km (0.095 R)
• M6: 2,917,458 km (0.071 R)
• M7: 3,376,723 km (0.114 R)
• M8: 3,802,030 km (0.095 R)
• M9: 4,237,958 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.2

Radius: 11.8

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.6 AU - 0.74 AU

Year: 372 Days

Day: 7.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 58,135,837 km

• M1: 147,952 km (0.07 R)
• M2: 545,135 km (0.075 R)
• M3: 1,288,337 km (0.064 R)
• M4: 1,698,534 km (0.094 R)
• M5: 2,285,407 km (0.1 R)
• M6: 2,986,123 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.3

Radius: 8.9

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.88 AU - 1.08 AU

Year: 658 Days

Day: 14.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 58,135,837 km

• M1: 110,852 km (0.111 R)
• M2: 794,963 km (0.113 R)
• M3: 1,101,489 km (0.084 R)
• M4: 1,971,550 km (0.063 R)
• M5: 3,386,597 km (0.054 R)
• M6: 4,744,796 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 251.5

Radius: 12.2

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.36 AU - 2.76 AU

Year: 2778 Days

Day: 8.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,135,837 km

• M1: 152,141 km (0.106 R)
• M2: 570,117 km (0.104 R)
• M3: 983,456 km (0.117 R)
• M4: 1,409,062 km (0.044 R)
• M5: 2,416,305 km (0.026 R)
• M6: 3,872,042 km (0.044 R)
• M7: 5,639,989 km (0.11 R)
• M8: 6,375,562 km (0.042 R)
• M9: 7,147,337 km (0.097 R)
• M10: 10,074,220 km (0.11 R)
• M11: 13,638,239 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.1

Radius: 12.6

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 3.12 AU - 3.68 AU

Year: 4252 Days

Day: 12.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,135,837 km

• M1: 156,928 km (0.05 R)
• M2: 618,886 km (0.056 R)
• M3: 1,563,597 km (0.063 R)
• M4: 2,474,050 km (0.072 R)
• M5: 3,605,907 km (0.09 R)
• M6: 4,487,936 km (0.076 R)
• M7: 7,085,105 km (0.047 R)
• M8: 9,172,593 km (0.1 R)
• M9: 10,922,141 km (0.055 R)
• M10: 11,642,155 km (0.086 R)
• M11: 12,112,940 km (0.102 R)
• M12: 14,302,304 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.7

Radius: 11.9

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.92 AU - 4.22 AU

Year: 4575 Days

Day: 12.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 58,135,837 km

• M1: 147,952 km (0.039 R)
• M2: 1,395,898 km (0.115 R)
• M3: 2,521,622 km (0.079 R)
• M4: 3,118,218 km (0.111 R)
• M5: 3,723,641 km (0.112 R)
• M6: 5,408,412 km (0.053 R)
• M7: 5,821,302 km (0.066 R)
• M8: 8,501,198 km (0.111 R)
• M9: 11,195,605 km (0.064 R)
• M10: 12,099,476 km (0.091 R)
• M11: 12,521,791 km (0.088 R)
• M12: 17,601,386 km (0.051 R)
• M13: 21,502,600 km (0.099 R)
• M14: 22,123,132 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 119.7

Radius: 4.9

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 5.38 AU - 7.12 AU

Year: 10598 Days

Day: 20.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,135,837 km

• M1: 65,823 km (0.119 R)
• M2: 417,079 km (0.081 R)
• M3: 724,951 km (0.062 R)
• M4: 929,751 km (0.076 R)
• M5: 1,514,978 km (0.112 R)
• M6: 1,976,487 km (0.11 R)
• M7: 3,879,522 km (0.108 R)
• M8: 4,037,048 km (0.082 R)
• M9: 6,215,941 km (0.072 R)
• M10: 6,400,844 km (0.104 R)
• M11: 9,883,333 km (0.111 R)
• M12: 11,187,527 km (0.113 R)
• M13: 12,118,176 km (0.097 R)
• M14: 13,048,973 km (0.097 R)
• M15: 13,454,832 km (0.11 R)
• M16: 16,358,976 km (0.092 R)
• M17: 17,863,332 km (0.12 R)
• M18: 18,363,587 km (0.105 R)
• M19: 18,681,034 km (0.085 R)
• M20: 20,730,974 km (0.103 R)
• M21: 23,146,531 km (0.116 R)
• M22: 27,440,588 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 549.2

Radius: 3.7

Gravity: 40.12 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 7.5 AU - 8.2 AU

Year: 14917 Days

Day: 15.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 58,135,837 km

• M1: 49,517 km (0.117 R)
• M2: 176,675 km (0.085 R)
• M3: 336,446 km (0.099 R)
• M4: 829,071 km (0.096 R)
• M5: 1,032,076 km (0.046 R)
• M6: 1,321,248 km (0.104 R)
• M7: 1,662,032 km (0.081 R)
• M8: 2,021,815 km (0.112 R)
• M9: 2,778,930 km (0.099 R)
• M10: 3,060,623 km (0.05 R)
• M11: 3,258,690 km (0.104 R)
• M12: 3,465,435 km (0.045 R)
• M13: 4,020,443 km (0.099 R)
• M14: 5,062,093 km (0.1 R)
• M15: 6,077,114 km (0.086 R)
• M16: 6,880,156 km (0.069 R)
• M17: 7,350,940 km (0.078 R)
• M18: 8,213,970 km (0.101 R)
• M19: 8,403,810 km (0.08 R)
• M20: 8,941,315 km (0.107 R)
• M21: 10,084,392 km (0.086 R)
• M22: 12,037,243 km (0.086 R)
• M23: 12,530,766 km (0.089 R)
• M24: 13,426,858 km (0.114 R)
• M25: 14,640,545 km (0.092 R)
• M26: 17,990,939 km (0.088 R)
• M27: 19,462,833 km (0.084 R)
• M28: 21,727,894 km (0.084 R)
• M29: 24,749,173 km (0.093 R)
• M30: 25,046,124 km (0.112 R)
• M31: 25,245,239 km (0.089 R)
• M32: 25,849,166 km (0.08 R)
• M33: 32,545,914 km (0.086 R)
• M34: 36,994,357 km (0.043 R)
• M35: 39,903,138 km (0.097 R)
• M36: 44,255,239 km (0.049 R)
• M37: 45,575,440 km (0.112 R)
• M38: 49,224,282 km (0.091 R)
• M39: 50,166,000 km (0.094 R)
• M40: 52,409,819 km (0.104 R)
• M41: 52,572,581 km (0.091 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 280 - 18,575 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit