🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.07

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.64 AU - 0.68 AU

Year: 352 Days

Day: 25.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 9.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,884,723 km

• M1: 260,599 km (0.066 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.8

Radius: 12

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.97 AU - 1.05 AU

Year: 666 Days

Day: 7.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 40,884,723 km

• M1: 149,598 km (0.117 R)
• M2: 602,730 km (0.032 R)
• M3: 1,467,106 km (0.12 R)
• M4: 1,865,934 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 575.2

Radius: 11

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.93 AU - 1.45 AU

Year: 852 Days

Day: 10 Hours

Environment

Temp: -174 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,884,723 km

• M1: 137,032 km (0.086 R)
• M2: 532,120 km (0.109 R)
• M3: 891,005 km (0.049 R)
• M4: 1,390,811 km (0.116 R)
• M5: 2,716,697 km (0.033 R)
• M6: 3,207,678 km (0.09 R)
• M7: 4,024,632 km (0.086 R)
• M8: 5,099,193 km (0.111 R)
• M9: 5,948,759 km (0.116 R)
• M10: 6,565,851 km (0.096 R)
• M11: 7,112,182 km (0.063 R)
• M12: 7,807,662 km (0.081 R)
• M13: 8,675,779 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687

Radius: 12.1

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.33 AU - 1.83 AU

Year: 1303 Days

Day: 5.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,884,723 km

• M1: 150,495 km (0.118 R)
• M2: 633,397 km (0.113 R)
• M3: 1,033,721 km (0.091 R)
• M4: 1,963,771 km (0.089 R)
• M5: 2,703,234 km (0.092 R)
• M6: 4,117,083 km (0.111 R)
• M7: 4,869,261 km (0.082 R)
• M8: 5,603,487 km (0.08 R)
• M9: 6,270,544 km (0.072 R)
• M10: 6,671,616 km (0.063 R)
• M11: 7,165,439 km (0.068 R)
• M12: 7,577,880 km (0.104 R)
• M13: 8,226,537 km (0.049 R)
• M14: 9,238,566 km (0.062 R)
• M15: 10,396,753 km (0.087 R)
• M16: 11,649,485 km (0.089 R)
• M17: 12,040,684 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.4

Radius: 11.9

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 4.21 AU - 4.45 AU

Year: 5911 Days

Day: 7.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,884,723 km

• M1: 147,952 km (0.096 R)
• M2: 612,902 km (0.1 R)
• M3: 1,072,318 km (0.076 R)
• M4: 1,619,995 km (0.026 R)
• M5: 2,417,202 km (0.117 R)
• M6: 2,848,343 km (0.109 R)
• M7: 3,938,912 km (0.069 R)
• M8: 4,436,026 km (0.118 R)
• M9: 5,059,400 km (0.118 R)
• M10: 7,998,549 km (0.056 R)
• M11: 8,799,048 km (0.08 R)
• M12: 9,433,941 km (0.104 R)
• M13: 12,596,889 km (0.115 R)
• M14: 13,569,275 km (0.081 R)
• M15: 14,130,716 km (0.12 R)
• M16: 15,360,410 km (0.091 R)
• M17: 19,406,883 km (0.111 R)
• M18: 21,750,782 km (0.064 R)
• M19: 23,228,510 km (0.1 R)
• M20: 25,021,889 km (0.082 R)
• M21: 27,613,972 km (0.079 R)
• M22: 29,159,767 km (0.099 R)
• M23: 32,622,359 km (0.1 R)
• M24: 34,039,948 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717.9

Radius: 10.1

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 4.48 AU - 4.98 AU

Year: 6748 Days

Day: 8.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 40,884,723 km

• M1: 125,662 km (0.103 R)
• M2: 501,901 km (0.091 R)
• M3: 836,252 km (0.11 R)
• M4: 1,467,256 km (0.1 R)
• M5: 1,881,941 km (0.117 R)
• M6: 2,374,417 km (0.1 R)
• M7: 3,032,199 km (0.114 R)
• M8: 3,807,116 km (0.065 R)
• M9: 4,254,414 km (0.078 R)
• M10: 4,708,743 km (0.072 R)
• M11: 5,225,005 km (0.042 R)
• M12: 6,037,022 km (0.104 R)
• M13: 6,611,927 km (0.12 R)
• M14: 7,223,034 km (0.066 R)
• M15: 8,894,641 km (0.093 R)
• M16: 9,775,473 km (0.039 R)
• M17: 10,473,347 km (0.114 R)
• M18: 11,812,846 km (0.06 R)
• M19: 13,375,097 km (0.118 R)
• M20: 18,185,267 km (0.099 R)
• M21: 21,704,856 km (0.101 R)
• M22: 22,571,028 km (0.097 R)
• M23: 26,533,426 km (0.038 R)
• M24: 26,890,666 km (0.114 R)
• M25: 30,642,132 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.2

Radius: 13.9

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 3.93 AU - 5.81 AU

Year: 7050 Days

Day: 6.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,884,723 km

• M1: 172,935 km (0.06 R)
• M2: 694,433 km (0.092 R)
• M3: 1,207,404 km (0.106 R)
• M4: 1,888,673 km (0.075 R)
• M5: 3,124,950 km (0.037 R)
• M6: 3,688,336 km (0.077 R)
• M7: 4,904,117 km (0.111 R)
• M8: 5,831,475 km (0.106 R)
• M9: 7,322,517 km (0.064 R)
• M10: 9,782,055 km (0.071 R)
• M11: 13,087,271 km (0.094 R)
• M12: 14,929,568 km (0.091 R)
• M13: 15,945,487 km (0.119 R)
• M14: 20,245,379 km (0.073 R)
• M15: 21,017,304 km (0.109 R)
• M16: 21,648,906 km (0.117 R)
• M17: 24,216,903 km (0.118 R)
• M18: 25,708,244 km (0.094 R)
• M19: 27,916,907 km (0.059 R)
• M20: 40,762,727 km (0.057 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 388 - 17,524 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit