🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.51 AU - 0.57 AU

Year: 256 Days

Day: 33.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 9.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.7

Radius: 11.1

Gravity: 7.78 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.62 AU - 1 AU

Year: 471 Days

Day: 11.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,149,495 km

• M1: 138,079 km (0.092 R)
• M2: 569,968 km (0.103 R)
• M3: 949,049 km (0.119 R)
• M4: 1,315,713 km (0.102 R)
• M5: 1,678,039 km (0.069 R)
• M6: 2,037,074 km (0.081 R)
• M7: 2,448,169 km (0.093 R)
• M8: 2,836,525 km (0.096 R)
• M9: 3,339,772 km (0.087 R)
• M10: 4,791,321 km (0.102 R)
• M11: 5,199,872 km (0.029 R)
• M12: 5,720,623 km (0.085 R)
• M13: 6,086,988 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.4

Radius: 14.4

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.78 AU - 1.88 AU

Year: 1598 Days

Day: 6.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,149,495 km

• M1: 179,667 km (0.082 R)
• M2: 702,512 km (0.098 R)
• M3: 1,199,476 km (0.082 R)
• M4: 1,764,058 km (0.11 R)
• M5: 2,305,752 km (0.111 R)
• M6: 3,433,570 km (0.091 R)
• M7: 4,328,016 km (0.08 R)
• M8: 5,155,591 km (0.041 R)
• M9: 5,710,450 km (0.111 R)
• M10: 6,993,700 km (0.052 R)
• M11: 7,788,813 km (0.099 R)
• M12: 8,341,876 km (0.106 R)
• M13: 9,109,463 km (0.107 R)
• M14: 10,058,512 km (0.044 R)
• M15: 12,308,165 km (0.045 R)
• M16: 12,979,710 km (0.065 R)
• M17: 13,592,463 km (0.033 R)
• M18: 14,612,870 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.2

Radius: 13.4

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.99 AU - 2.21 AU

Year: 1965 Days

Day: 6.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,149,495 km

• M1: 166,802 km (0.11 R)
• M2: 612,902 km (0.112 R)
• M3: 1,194,389 km (0.12 R)
• M4: 1,807,292 km (0.114 R)
• M5: 3,550,406 km (0.061 R)
• M6: 4,301,986 km (0.101 R)
• M7: 4,889,606 km (0.07 R)
• M8: 5,626,376 km (0.077 R)
• M9: 6,585,448 km (0.095 R)
• M10: 7,368,294 km (0.096 R)
• M11: 8,619,231 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.7

Radius: 10.9

Gravity: 7.37 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 4.13 AU - 4.21 AU

Year: 5498 Days

Day: 5.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 67,149,495 km

• M1: 135,536 km (0.063 R)
• M2: 797,506 km (0.082 R)
• M3: 1,296,714 km (0.039 R)
• M4: 1,639,443 km (0.111 R)
• M5: 2,311,736 km (0.087 R)
• M6: 2,900,703 km (0.073 R)
• M7: 4,430,939 km (0.066 R)
• M8: 5,703,718 km (0.103 R)
• M9: 6,145,630 km (0.108 R)
• M10: 6,508,704 km (0.111 R)
• M11: 6,956,451 km (0.095 R)
• M12: 7,610,193 km (0.109 R)
• M13: 10,225,463 km (0.095 R)
• M14: 10,736,789 km (0.086 R)
• M15: 12,270,317 km (0.083 R)
• M16: 13,008,732 km (0.11 R)
• M17: 13,832,567 km (0.103 R)
• M18: 14,343,294 km (0.066 R)
• M19: 14,749,153 km (0.097 R)
• M20: 16,199,355 km (0.069 R)
• M21: 18,618,353 km (0.099 R)
• M22: 23,195,599 km (0.056 R)
• M23: 24,079,423 km (0.048 R)
• M24: 26,778,019 km (0.108 R)
• M25: 34,086,174 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.9

Radius: 12.4

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 3.69 AU - 4.65 AU

Year: 5498 Days

Day: 5.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 67,149,495 km

• M1: 154,235 km (0.105 R)
• M2: 586,573 km (0.103 R)
• M3: 2,049,640 km (0.103 R)
• M4: 3,090,692 km (0.116 R)
• M5: 3,719,452 km (0.102 R)
• M6: 4,311,411 km (0.107 R)
• M7: 4,757,212 km (0.109 R)
• M8: 5,372,060 km (0.081 R)
• M9: 6,099,853 km (0.112 R)
• M10: 7,400,008 km (0.107 R)
• M11: 7,823,969 km (0.098 R)
• M12: 8,759,853 km (0.119 R)
• M13: 9,275,367 km (0.115 R)
• M14: 10,410,665 km (0.118 R)
• M15: 11,034,788 km (0.043 R)
• M16: 13,109,112 km (0.052 R)
• M17: 13,679,080 km (0.116 R)
• M18: 14,157,643 km (0.085 R)
• M19: 16,540,438 km (0.111 R)
• M20: 17,083,927 km (0.101 R)
• M21: 18,527,247 km (0.057 R)
• M22: 19,047,698 km (0.056 R)
• M23: 19,578,023 km (0.112 R)
• M24: 25,757,313 km (0.053 R)
• M25: 27,483,672 km (0.095 R)
• M26: 27,905,837 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509

Radius: 3.3

Gravity: 46.74 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 9.39 AU - 9.83 AU

Year: 19235 Days

Day: 17.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 67,149,495 km

• M1: 41,139 km (0.063 R)
• M2: 295,755 km (0.054 R)
• M3: 406,906 km (0.082 R)
• M4: 671,395 km (0.086 R)
• M5: 785,239 km (0.12 R)
• M6: 1,089,671 km (0.11 R)
• M7: 1,234,182 km (0.108 R)
• M8: 1,451,997 km (0.119 R)
• M9: 1,729,052 km (0.098 R)
• M10: 2,020,918 km (0.071 R)
• M11: 2,749,160 km (0.107 R)
• M12: 2,993,005 km (0.07 R)
• M13: 3,723,341 km (0.107 R)
• M14: 4,734,174 km (0.053 R)
• M15: 4,977,570 km (0.065 R)
• M16: 5,679,932 km (0.115 R)
• M17: 6,156,252 km (0.111 R)
• M18: 14,536,425 km (0.093 R)
• M19: 16,981,602 km (0.081 R)
• M20: 18,301,056 km (0.05 R)
• M21: 18,985,765 km (0.109 R)
• M22: 19,954,860 km (0.079 R)
• M23: 23,356,416 km (0.095 R)
• M24: 24,059,826 km (0.054 R)
• M25: 26,040,202 km (0.105 R)
• M26: 26,687,512 km (0.115 R)
• M27: 27,345,444 km (0.052 R)
• M28: 32,380,010 km (0.067 R)
• M29: 35,970,060 km (0.104 R)
• M30: 37,723,497 km (0.095 R)
• M31: 39,958,788 km (0.113 R)
• M32: 41,691,879 km (0.119 R)
• M33: 48,475,544 km (0.091 R)
• M34: 48,637,709 km (0.115 R)
• M35: 49,783,030 km (0.049 R)
• M36: 52,468,162 km (0.028 R)
• M37: 53,672,724 km (0.119 R)
• M38: 55,071,763 km (0.08 R)
• M39: 57,396,664 km (0.104 R)
• M40: 65,750,059 km (0.08 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 174 - 19,330 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit