🌌 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 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.43 AU - 0.59 AU

Year: 235 Days

Day: 23.4 Hours

Environment

Temp: -127 °C

Axial Tilt: 129.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,826,935 km

• M1: 74,949 km (0.044 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.9

Radius: 8.3

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.71 AU - 0.97 AU

Year: 497 Days

Day: 5.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,826,935 km

• M1: 108,907 km (0.079 R)
• M2: 882,478 km (0.116 R)
• M3: 1,559,857 km (0.055 R)
• M4: 2,591,484 km (0.114 R)
• M5: 3,284,421 km (0.119 R)
• M6: 3,544,871 km (0.09 R)
• M7: 4,157,175 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 626.2

Radius: 8.1

Gravity: 9.54 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.26 AU - 1.7 AU

Year: 1163 Days

Day: 11.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,826,935 km

• M1: 100,679 km (0.117 R)
• M2: 371,302 km (0.079 R)
• M3: 793,018 km (0.054 R)
• M4: 1,233,434 km (0.09 R)
• M5: 1,897,799 km (0.115 R)
• M6: 3,200,497 km (0.087 R)
• M7: 4,165,104 km (0.091 R)
• M8: 4,959,020 km (0.08 R)
• M9: 5,291,426 km (0.06 R)
• M10: 6,678,797 km (0.093 R)
• M11: 7,481,838 km (0.103 R)
• M12: 7,789,412 km (0.069 R)
• M13: 10,122,091 km (0.109 R)
• M14: 10,754,890 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.4

Radius: 10.3

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.52 AU - 2.48 AU

Year: 1826 Days

Day: 6.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 68,826,935 km

• M1: 128,056 km (0.12 R)
• M2: 544,835 km (0.106 R)
• M3: 912,996 km (0.104 R)
• M4: 1,947,166 km (0.098 R)
• M5: 2,342,553 km (0.112 R)
• M6: 2,762,624 km (0.105 R)
• M7: 3,564,020 km (0.112 R)
• M8: 4,614,795 km (0.036 R)
• M9: 5,506,847 km (0.077 R)
• M10: 6,279,819 km (0.11 R)
• M11: 7,041,422 km (0.081 R)
• M12: 7,374,128 km (0.117 R)
• M13: 9,562,894 km (0.118 R)
• M14: 9,937,039 km (0.106 R)
• M15: 11,044,512 km (0.102 R)
• M16: 11,685,688 km (0.045 R)
• M17: 12,035,149 km (0.091 R)
• M18: 12,431,583 km (0.035 R)
• M19: 13,588,124 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.8

Radius: 10.9

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.83 AU - 2.17 AU

Year: 1826 Days

Day: 5.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,826,935 km

• M1: 135,536 km (0.111 R)
• M2: 493,075 km (0.031 R)
• M3: 917,633 km (0.104 R)
• M4: 1,711,848 km (0.077 R)
• M5: 2,246,511 km (0.109 R)
• M6: 2,626,340 km (0.047 R)
• M7: 3,035,790 km (0.096 R)
• M8: 4,284,184 km (0.112 R)
• M9: 4,967,248 km (0.116 R)
• M10: 5,680,082 km (0.089 R)
• M11: 6,688,521 km (0.069 R)
• M12: 7,138,362 km (0.1 R)
• M13: 8,888,507 km (0.098 R)
• M14: 9,758,269 km (0.12 R)
• M15: 10,652,116 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.1

Radius: 10.9

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 2.35 AU - 3.77 AU

Year: 3456 Days

Day: 7.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 68,826,935 km

• M1: 135,536 km (0.066 R)
• M2: 630,256 km (0.063 R)
• M3: 998,267 km (0.119 R)
• M4: 1,337,704 km (0.113 R)
• M5: 1,756,129 km (0.066 R)
• M6: 2,291,091 km (0.039 R)
• M7: 2,949,920 km (0.026 R)
• M8: 3,877,278 km (0.104 R)
• M9: 4,294,207 km (0.114 R)
• M10: 5,349,919 km (0.043 R)
• M11: 5,784,351 km (0.104 R)
• M12: 7,005,818 km (0.087 R)
• M13: 8,572,706 km (0.074 R)
• M14: 9,207,151 km (0.086 R)
• M15: 9,792,677 km (0.115 R)
• M16: 11,834,538 km (0.105 R)
• M17: 13,246,443 km (0.115 R)
• M18: 15,085,150 km (0.057 R)
• M19: 16,799,990 km (0.104 R)
• M20: 17,913,298 km (0.102 R)
• M21: 18,826,294 km (0.065 R)
• M22: 22,441,027 km (0.104 R)
• M23: 23,215,794 km (0.037 R)
• M24: 24,744,385 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 799.6

Radius: 6

Gravity: 22.21 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 6.02 AU - 7.36 AU

Year: 11173 Days

Day: 15.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 68,826,935 km

• M1: 74,649 km (0.096 R)
• M2: 288,724 km (0.103 R)
• M3: 769,980 km (0.081 R)
• M4: 1,265,897 km (0.054 R)
• M5: 1,738,626 km (0.103 R)
• M6: 2,421,242 km (0.062 R)
• M7: 2,779,080 km (0.106 R)
• M8: 3,444,491 km (0.097 R)
• M9: 4,389,202 km (0.031 R)
• M10: 4,697,224 km (0.096 R)
• M11: 5,019,607 km (0.077 R)
• M12: 5,495,777 km (0.067 R)
• M13: 6,303,905 km (0.119 R)
• M14: 7,704,889 km (0.063 R)
• M15: 8,431,186 km (0.078 R)
• M16: 9,054,112 km (0.069 R)
• M17: 13,070,516 km (0.076 R)
• M18: 14,977,589 km (0.102 R)
• M19: 16,177,813 km (0.076 R)
• M20: 19,415,260 km (0.097 R)
• M21: 20,245,229 km (0.109 R)
• M22: 21,710,092 km (0.051 R)
• M23: 22,513,582 km (0.118 R)
• M24: 23,896,465 km (0.073 R)
• M25: 26,025,542 km (0.065 R)
• M26: 26,526,545 km (0.076 R)
• M27: 26,728,801 km (0.062 R)
• M28: 27,238,780 km (0.115 R)
• M29: 28,068,151 km (0.079 R)
• M30: 28,383,354 km (0.102 R)
• M31: 35,563,603 km (0.087 R)
• M32: 43,583,844 km (0.087 R)
• M33: 51,778,067 km (0.044 R)
• M34: 52,729,509 km (0.077 R)
• M35: 53,692,770 km (0.06 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 624.7

Radius: 7.7

Gravity: 10.54 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 7.51 AU - 10.89 AU

Year: 18018 Days

Day: 19.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 68,826,935 km

• M1: 95,892 km (0.11 R)
• M2: 337,194 km (0.116 R)
• M3: 1,317,808 km (0.092 R)
• M4: 1,588,430 km (0.057 R)
• M5: 2,084,497 km (0.089 R)
• M6: 2,369,181 km (0.105 R)
• M7: 3,249,266 km (0.103 R)
• M8: 3,605,458 km (0.083 R)
• M9: 4,494,518 km (0.074 R)
• M10: 6,152,362 km (0.102 R)
• M11: 6,917,555 km (0.077 R)
• M12: 7,602,265 km (0.044 R)
• M13: 8,687,148 km (0.076 R)
• M14: 9,374,850 km (0.052 R)
• M15: 10,270,492 km (0.115 R)
• M16: 10,561,610 km (0.084 R)
• M17: 10,858,412 km (0.034 R)
• M18: 16,318,285 km (0.043 R)
• M19: 18,453,197 km (0.117 R)
• M20: 19,498,586 km (0.112 R)
• M21: 20,860,226 km (0.075 R)
• M22: 21,516,961 km (0.086 R)
• M23: 22,284,099 km (0.055 R)
• M24: 25,749,533 km (0.116 R)
• M25: 27,609,933 km (0.088 R)
• M26: 30,267,090 km (0.066 R)
• M27: 40,253,795 km (0.106 R)
• M28: 41,712,225 km (0.073 R)
• M29: 58,098,577 km (0.088 R)
• M30: 60,525,503 km (0.072 R)
• M31: 61,094,873 km (0.097 R)
• M32: 62,052,000 km (0.117 R)
• M33: 65,580,415 km (0.118 R)
• M34: 68,005,397 km (0.104 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: 468 - 19,295 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit