🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.7

Radius: 9.5

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.61 AU - 0.63 AU

Year: 337 Days

Day: 8.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,722,549 km

• M1: 118,182 km (0.079 R)
• M2: 433,235 km (0.109 R)
• M3: 760,705 km (0.113 R)
• M4: 1,172,249 km (0.101 R)
• M5: 1,478,925 km (0.115 R)
• M6: 1,794,127 km (0.068 R)
• M7: 2,125,337 km (0.118 R)
• M8: 2,690,817 km (0.118 R)
• M9: 3,445,089 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299

Radius: 8.3

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.12 AU - 1.3 AU

Year: 919 Days

Day: 7.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 173.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,722,549 km

• M1: 103,223 km (0.117 R)
• M2: 380,128 km (0.09 R)
• M3: 956,828 km (0.104 R)
• M4: 1,324,390 km (0.12 R)
• M5: 1,776,475 km (0.059 R)
• M6: 2,052,932 km (0.109 R)
• M7: 2,522,220 km (0.073 R)
• M8: 2,782,820 km (0.109 R)
• M9: 3,409,934 km (0.068 R)
• M10: 4,055,000 km (0.042 R)
• M11: 4,460,859 km (0.12 R)
• M12: 5,095,004 km (0.104 R)
• M13: 5,407,215 km (0.102 R)
• M14: 5,993,938 km (0.07 R)
• M15: 6,263,812 km (0.095 R)
• M16: 6,642,893 km (0.085 R)
• M17: 7,015,991 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.8

Radius: 9.6

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.68 AU - 1.96 AU

Year: 1695 Days

Day: 5 Hours

Environment

Temp: -188 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,722,549 km

• M1: 120,127 km (0.082 R)
• M2: 501,003 km (0.115 R)
• M3: 1,330,224 km (0.085 R)
• M4: 1,832,125 km (0.103 R)
• M5: 2,738,239 km (0.098 R)
• M6: 3,172,372 km (0.097 R)
• M7: 3,766,874 km (0.039 R)
• M8: 5,260,460 km (0.106 R)
• M9: 7,063,413 km (0.059 R)
• M10: 7,426,188 km (0.094 R)
• M11: 8,531,417 km (0.106 R)
• M12: 9,337,301 km (0.078 R)
• M13: 9,870,168 km (0.099 R)
• M14: 11,169,426 km (0.104 R)
• M15: 11,555,688 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.8

Radius: 12.3

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.6 AU - 3.62 AU

Year: 3786 Days

Day: 6.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,722,549 km

• M1: 153,039 km (0.052 R)
• M2: 586,573 km (0.058 R)
• M3: 1,171,800 km (0.101 R)
• M4: 2,188,916 km (0.112 R)
• M5: 2,648,929 km (0.076 R)
• M6: 4,247,832 km (0.095 R)
• M7: 8,231,174 km (0.113 R)
• M8: 9,238,417 km (0.074 R)
• M9: 9,913,552 km (0.1 R)
• M10: 11,009,506 km (0.078 R)
• M11: 14,997,486 km (0.12 R)
• M12: 19,924,192 km (0.107 R)
• M13: 20,648,994 km (0.081 R)
• M14: 21,596,846 km (0.049 R)
• M15: 23,579,467 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.5

Radius: 10.8

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.8 AU - 3.56 AU

Year: 3914 Days

Day: 10.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 55,722,549 km

• M1: 159,621 km (0.112 R)
• M2: 2,574,280 km (0.103 R)
• M3: 4,841,137 km (0.1 R)
• M4: 6,131,718 km (0.099 R)
• M5: 7,279,582 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.7

Radius: 12.6

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.36 AU - 3.84 AU

Year: 4715 Days

Day: 13.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,722,549 km

• M1: 156,779 km (0.059 R)
• M2: 659,427 km (0.103 R)
• M3: 1,086,380 km (0.102 R)
• M4: 1,751,342 km (0.117 R)
• M5: 2,443,980 km (0.045 R)
• M6: 3,331,395 km (0.08 R)
• M7: 3,881,317 km (0.073 R)
• M8: 5,014,670 km (0.119 R)
• M9: 5,472,889 km (0.118 R)
• M10: 6,241,822 km (0.071 R)
• M11: 8,131,542 km (0.059 R)
• M12: 10,540,068 km (0.075 R)
• M13: 12,404,057 km (0.091 R)
• M14: 13,438,526 km (0.112 R)
• M15: 14,026,596 km (0.098 R)
• M16: 14,888,878 km (0.096 R)
• M17: 17,747,244 km (0.093 R)
• M18: 18,395,751 km (0.058 R)
• M19: 23,038,222 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.3

Radius: 10.9

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 3.65 AU - 5.37 AU

Year: 6611 Days

Day: 12.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,722,549 km

• M1: 135,536 km (0.065 R)
• M2: 584,180 km (0.082 R)
• M3: 1,187,059 km (0.106 R)
• M4: 1,627,026 km (0.105 R)
• M5: 2,928,079 km (0.119 R)
• M6: 3,318,829 km (0.057 R)
• M7: 4,184,701 km (0.097 R)
• M8: 5,044,739 km (0.108 R)
• M9: 5,399,436 km (0.101 R)
• M10: 6,866,243 km (0.072 R)
• M11: 8,618,633 km (0.112 R)
• M12: 10,983,775 km (0.106 R)
• M13: 11,366,147 km (0.077 R)
• M14: 11,845,608 km (0.087 R)
• M15: 15,429,375 km (0.116 R)
• M16: 15,963,439 km (0.082 R)
• M17: 16,399,517 km (0.11 R)
• M18: 18,165,071 km (0.077 R)
• M19: 19,185,329 km (0.045 R)
• M20: 19,803,168 km (0.11 R)
• M21: 23,301,364 km (0.098 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.3

Radius: 10.7

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 5.04 AU - 6.02 AU

Year: 8976 Days

Day: 8.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,722,549 km

• M1: 133,591 km (0.104 R)
• M2: 476,320 km (0.115 R)
• M3: 857,196 km (0.09 R)
• M4: 1,348,475 km (0.079 R)
• M5: 3,609,497 km (0.072 R)
• M6: 4,459,064 km (0.111 R)
• M7: 4,909,204 km (0.088 R)
• M8: 5,508,493 km (0.108 R)
• M9: 6,418,048 km (0.093 R)
• M10: 7,135,220 km (0.095 R)
• M11: 10,179,986 km (0.103 R)
• M12: 10,697,594 km (0.077 R)
• M13: 11,388,886 km (0.087 R)
• M14: 11,946,886 km (0.081 R)
• M15: 13,074,555 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 148

Radius: 5.3

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 6.37 AU - 8.15 AU

Year: 13503 Days

Day: 15.1 Hours

Environment

Temp: -238 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 55,722,549 km

• M1: 65,973 km (0.086 R)
• M2: 247,435 km (0.058 R)
• M3: 465,399 km (0.119 R)
• M4: 756,217 km (0.042 R)
• M5: 957,127 km (0.098 R)
• M6: 1,258,716 km (0.055 R)
• M7: 2,178,444 km (0.103 R)
• M8: 4,319,639 km (0.066 R)
• M9: 4,663,714 km (0.12 R)
• M10: 5,527,193 km (0.094 R)
• M11: 5,774,478 km (0.05 R)
• M12: 7,641,310 km (0.085 R)
• M13: 8,184,051 km (0.108 R)
• M14: 10,240,722 km (0.108 R)
• M15: 11,487,321 km (0.119 R)
• M16: 11,687,633 km (0.025 R)
• M17: 12,302,779 km (0.1 R)
• M18: 18,089,823 km (0.112 R)
• M19: 20,557,291 km (0.088 R)
• M20: 20,778,695 km (0.109 R)
• M21: 22,685,919 km (0.101 R)
• M22: 23,722,482 km (0.108 R)
• M23: 24,047,559 km (0.086 R)
• M24: 24,790,162 km (0.069 R)
• M25: 26,494,680 km (0.089 R)
• M26: 27,643,592 km (0.107 R)
• M27: 30,230,289 km (0.097 R)
• M28: 30,516,619 km (0.104 R)
• M29: 31,778,477 km (0.088 R)
• M30: 32,472,163 km (0.112 R)
• M31: 33,175,871 km (0.119 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 510.5

Radius: 4.9

Gravity: 21.26 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 5.73 AU - 9.51 AU

Year: 14519 Days

Day: 15.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 55,722,549 km

• M1: 61,036 km (0.066 R)
• M2: 245,041 km (0.105 R)
• M3: 598,840 km (0.113 R)
• M4: 941,120 km (0.115 R)
• M5: 2,427,076 km (0.031 R)
• M6: 3,337,379 km (0.105 R)
• M7: 4,333,850 km (0.108 R)
• M8: 4,548,523 km (0.098 R)
• M9: 5,373,556 km (0.107 R)
• M10: 5,914,053 km (0.065 R)
• M11: 6,178,242 km (0.075 R)
• M12: 8,680,416 km (0.108 R)
• M13: 10,809,194 km (0.112 R)
• M14: 11,845,010 km (0.076 R)
• M15: 13,585,132 km (0.065 R)
• M16: 16,652,487 km (0.073 R)
• M17: 17,103,525 km (0.109 R)
• M18: 18,346,234 km (0.081 R)
• M19: 22,072,119 km (0.113 R)
• M20: 25,078,288 km (0.062 R)
• M21: 26,071,019 km (0.077 R)
• M22: 27,818,173 km (0.115 R)
• M23: 28,134,273 km (0.116 R)
• M24: 29,751,426 km (0.082 R)
• M25: 31,088,981 km (0.059 R)
• M26: 33,406,551 km (0.113 R)
• M27: 35,218,480 km (0.117 R)
• M28: 37,222,194 km (0.116 R)
• M29: 38,512,326 km (0.041 R)
• M30: 40,099,560 km (0.107 R)
• M31: 40,503,175 km (0.083 R)
• M32: 43,829,334 km (0.101 R)
• M33: 47,333,065 km (0.099 R)
• M34: 48,846,547 km (0.119 R)
• M35: 49,615,181 km (0.086 R)
• M36: 55,057,252 km (0.094 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 347 - 15,114 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit