🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.6

Radius: 9

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.71 AU - 0.87 AU

Year: 485 Days

Day: 6.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 23,629,911 km

• M1: 111,899 km (0.106 R)
• M2: 430,692 km (0.069 R)
• M3: 993,479 km (0.102 R)
• M4: 1,599,800 km (0.034 R)
• M5: 2,636,064 km (0.039 R)
• M6: 3,390,037 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.5

Radius: 10.8

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.78 AU - 1.04 AU

Year: 599 Days

Day: 13.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 23,629,911 km

• M1: 134,339 km (0.082 R)
• M2: 550,221 km (0.073 R)
• M3: 982,559 km (0.106 R)
• M4: 1,351,318 km (0.076 R)
• M5: 2,090,929 km (0.092 R)
• M6: 2,486,317 km (0.059 R)
• M7: 2,831,289 km (0.06 R)
• M8: 3,409,485 km (0.1 R)
• M9: 3,749,222 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.1

Radius: 9.5

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.07 AU - 1.11 AU

Year: 786 Days

Day: 13.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 23,629,911 km

• M1: 118,182 km (0.096 R)
• M2: 474,225 km (0.089 R)
• M3: 905,965 km (0.098 R)
• M4: 1,228,797 km (0.1 R)
• M5: 1,865,785 km (0.099 R)
• M6: 2,448,020 km (0.062 R)
• M7: 3,761,190 km (0.102 R)
• M8: 4,083,124 km (0.056 R)
• M9: 4,511,722 km (0.098 R)
• M10: 4,813,910 km (0.054 R)
• M11: 5,476,180 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.7

Radius: 8.9

Gravity: 8.25 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.85 AU - 2.69 AU

Year: 2361 Days

Day: 9.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 23,629,911 km

• M1: 110,852 km (0.037 R)
• M2: 414,835 km (0.095 R)
• M3: 784,192 km (0.117 R)
• M4: 1,476,232 km (0.083 R)
• M5: 2,218,387 km (0.117 R)
• M6: 2,572,036 km (0.068 R)
• M7: 2,900,404 km (0.094 R)
• M8: 4,077,888 km (0.105 R)
• M9: 4,611,654 km (0.077 R)
• M10: 5,214,533 km (0.097 R)
• M11: 5,718,977 km (0.093 R)
• M12: 6,686,726 km (0.073 R)
• M13: 7,370,388 km (0.119 R)
• M14: 8,194,373 km (0.098 R)
• M15: 8,645,111 km (0.095 R)
• M16: 9,044,538 km (0.112 R)
• M17: 10,503,117 km (0.086 R)
• M18: 11,989,372 km (0.072 R)
• M19: 12,782,988 km (0.037 R)
• M20: 13,127,363 km (0.094 R)
• M21: 14,895,909 km (0.102 R)
• M22: 16,869,254 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.1

Radius: 9.1

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.11 AU - 2.93 AU

Year: 2761 Days

Day: 9.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 23,629,911 km

• M1: 113,246 km (0.064 R)
• M2: 584,180 km (0.056 R)
• M3: 1,081,742 km (0.097 R)
• M4: 1,542,055 km (0.117 R)
• M5: 2,128,778 km (0.115 R)
• M6: 3,576,436 km (0.081 R)
• M7: 4,023,136 km (0.117 R)
• M8: 4,884,221 km (0.094 R)
• M9: 7,365,302 km (0.067 R)
• M10: 8,292,958 km (0.077 R)
• M11: 8,800,394 km (0.081 R)
• M12: 9,910,111 km (0.056 R)
• M13: 11,507,218 km (0.112 R)
• M14: 12,100,972 km (0.079 R)
• M15: 12,676,026 km (0.105 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 778.3

Radius: 7

Gravity: 15.88 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 4.57 AU - 6.67 AU

Year: 9196 Days

Day: 23.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 23,629,911 km

• M1: 88,263 km (0.067 R)
• M2: 327,320 km (0.036 R)
• M3: 603,627 km (0.073 R)
• M4: 995,873 km (0.108 R)
• M5: 1,439,880 km (0.094 R)
• M6: 2,128,778 km (0.072 R)
• M7: 2,517,583 km (0.114 R)
• M8: 2,909,230 km (0.085 R)
• M9: 3,293,696 km (0.068 R)
• M10: 7,942,151 km (0.102 R)
• M11: 10,698,492 km (0.032 R)
• M12: 16,211,921 km (0.112 R)
• M13: 17,635,943 km (0.085 R)
• M14: 19,846,102 km (0.067 R)
• M15: 21,058,892 km (0.055 R)
• M16: 22,664,975 km (0.113 R)
• M17: 31,177,094 km (0.102 R)
• M18: 37,575,395 km (0.045 R)
• M19: 39,051,776 km (0.066 R)
• M20: 42,911,252 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 359.8

Radius: 7.9

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 5.53 AU - 8.29 AU

Year: 12538 Days

Day: 22.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 23,629,911 km

• M1: 98,286 km (0.027 R)
• M2: 355,594 km (0.098 R)
• M3: 710,739 km (0.03 R)
• M4: 1,321,847 km (0.091 R)
• M5: 1,877,453 km (0.111 R)
• M6: 2,191,758 km (0.091 R)
• M7: 2,483,474 km (0.078 R)
• M8: 3,740,994 km (0.082 R)
• M9: 6,407,426 km (0.112 R)
• M10: 6,892,423 km (0.076 R)
• M11: 8,148,297 km (0.114 R)
• M12: 8,451,681 km (0.073 R)
• M13: 10,586,443 km (0.119 R)
• M14: 11,587,253 km (0.115 R)
• M15: 12,026,921 km (0.07 R)
• M16: 15,687,431 km (0.054 R)
• M17: 25,293,709 km (0.098 R)
• M18: 26,409,111 km (0.063 R)
• M19: 27,363,545 km (0.104 R)
• M20: 28,737,901 km (0.086 R)
• M21: 29,239,801 km (0.094 R)
• M22: 29,543,784 km (0.047 R)
• M23: 32,374,475 km (0.058 R)
• M24: 33,911,294 km (0.057 R)
• M25: 37,248,075 km (0.096 R)
• M26: 41,431,280 km (0.116 R)
• M27: 41,814,849 km (0.064 R)
• M28: 42,718,869 km (0.071 R)
• M29: 42,979,618 km (0.113 R)
• M30: 44,834,033 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 25.8

Radius: 6.6

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 8.36 AU - 9.12 AU

Year: 17835 Days

Day: 23.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 23,629,911 km

• M1: 212,728 km (0.092 R)
• M2: 770,130 km (0.104 R)
• M3: 1,284,597 km (0.115 R)
• M4: 1,915,451 km (0.099 R)
• M5: 5,748,747 km (0.096 R)
• M6: 8,021,288 km (0.065 R)
• M7: 9,470,293 km (0.076 R)
• M8: 11,736,252 km (0.113 R)
• M9: 18,779,619 km (0.037 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 434 - 17,262 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit