🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.1

Radius: 0.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.54 AU - 0.62 AU

Year: 290 Days

Day: 43.3 Hours

Environment

Temp: -119 °C

Axial Tilt: 27.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,108,224 km

• M1: 89,160 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.1

Radius: 13.6

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.76 AU - 1.08 AU

Year: 579 Days

Day: 7.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,108,224 km

• M1: 169,345 km (0.04 R)
• M2: 837,748 km (0.09 R)
• M3: 1,564,046 km (0.072 R)
• M4: 2,527,456 km (0.074 R)
• M5: 3,264,525 km (0.083 R)
• M6: 4,155,829 km (0.1 R)
• M7: 4,707,097 km (0.067 R)
• M8: 5,152,300 km (0.118 R)
• M9: 6,640,500 km (0.12 R)
• M10: 7,484,531 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.5

Radius: 10.1

Gravity: 7.24 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.92 AU - 1.18 AU

Year: 706 Days

Day: 7.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,108,224 km

• M1: 127,308 km (0.036 R)
• M2: 565,181 km (0.044 R)
• M3: 930,499 km (0.105 R)
• M4: 1,294,919 km (0.096 R)
• M5: 1,780,963 km (0.061 R)
• M6: 2,365,142 km (0.054 R)
• M7: 2,748,562 km (0.069 R)
• M8: 3,342,316 km (0.056 R)
• M9: 3,670,085 km (0.109 R)
• M10: 4,049,465 km (0.109 R)
• M11: 4,407,004 km (0.111 R)
• M12: 4,768,582 km (0.063 R)
• M13: 5,311,921 km (0.09 R)
• M14: 6,274,883 km (0.088 R)
• M15: 6,733,699 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 850

Radius: 12.6

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.04 AU - 1.32 AU

Year: 841 Days

Day: 5.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,108,224 km

• M1: 156,779 km (0.11 R)
• M2: 581,038 km (0.099 R)
• M3: 996,920 km (0.095 R)
• M4: 1,775,428 km (0.108 R)
• M5: 2,175,303 km (0.052 R)
• M6: 3,109,242 km (0.084 R)
• M7: 4,099,281 km (0.034 R)
• M8: 4,546,878 km (0.093 R)
• M9: 5,462,566 km (0.113 R)
• M10: 5,985,411 km (0.038 R)
• M11: 8,033,256 km (0.099 R)
• M12: 8,764,790 km (0.076 R)
• M13: 9,597,302 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.3

Radius: 8.2

Gravity: 12.27 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.07 AU - 2.31 AU

Year: 2126 Days

Day: 14.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 114.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,108,224 km

• M1: 102,026 km (0.12 R)
• M2: 604,525 km (0.053 R)
• M3: 1,293,274 km (0.076 R)
• M4: 2,253,692 km (0.044 R)
• M5: 2,541,069 km (0.066 R)
• M6: 3,274,847 km (0.066 R)
• M7: 4,727,891 km (0.109 R)
• M8: 5,732,740 km (0.101 R)
• M9: 6,459,636 km (0.076 R)
• M10: 8,808,173 km (0.11 R)
• M11: 9,738,971 km (0.083 R)
• M12: 10,136,453 km (0.077 R)
• M13: 11,917,116 km (0.101 R)
• M14: 12,924,508 km (0.119 R)
• M15: 13,942,222 km (0.112 R)
• M16: 15,300,272 km (0.096 R)
• M17: 17,002,396 km (0.098 R)
• M18: 17,845,530 km (0.042 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.2

Radius: 11.8

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 4.24 AU - 4.8 AU

Year: 6304 Days

Day: 8.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,108,224 km

• M1: 149,598 km (0.082 R)
• M2: 611,706 km (0.093 R)
• M3: 1,876,256 km (0.084 R)
• M4: 2,307,996 km (0.084 R)
• M5: 2,715,800 km (0.114 R)
• M6: 3,105,951 km (0.116 R)
• M7: 4,239,753 km (0.06 R)
• M8: 5,060,447 km (0.119 R)
• M9: 5,582,245 km (0.119 R)
• M10: 6,244,963 km (0.1 R)
• M11: 7,045,461 km (0.107 R)
• M12: 7,485,728 km (0.097 R)
• M13: 8,006,777 km (0.054 R)
• M14: 8,683,857 km (0.1 R)
• M15: 10,412,461 km (0.077 R)
• M16: 10,830,138 km (0.108 R)
• M17: 14,445,619 km (0.077 R)
• M18: 15,351,883 km (0.108 R)
• M19: 16,245,132 km (0.031 R)
• M20: 17,383,572 km (0.071 R)
• M21: 18,080,847 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628.6

Radius: 14.7

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 5.53 AU - 5.59 AU

Year: 8600 Days

Day: 10.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 57,108,224 km

• M1: 182,809 km (0.115 R)
• M2: 830,268 km (0.085 R)
• M3: 1,292,825 km (0.107 R)
• M4: 1,965,716 km (0.116 R)
• M5: 2,520,874 km (0.116 R)
• M6: 3,659,014 km (0.098 R)
• M7: 4,821,240 km (0.055 R)
• M8: 5,331,818 km (0.052 R)
• M9: 5,812,176 km (0.087 R)
• M10: 7,237,395 km (0.07 R)
• M11: 8,709,588 km (0.108 R)
• M12: 9,333,262 km (0.11 R)
• M13: 10,130,618 km (0.067 R)
• M14: 10,770,598 km (0.102 R)
• M15: 11,542,523 km (0.099 R)
• M16: 12,023,181 km (0.119 R)
• M17: 13,370,908 km (0.112 R)
• M18: 14,384,882 km (0.12 R)
• M19: 15,385,543 km (0.116 R)
• M20: 15,968,526 km (0.097 R)
• M21: 17,595,702 km (0.098 R)
• M22: 19,107,986 km (0.098 R)
• M23: 21,019,548 km (0.095 R)
• M24: 22,638,197 km (0.062 R)
• M25: 23,139,799 km (0.059 R)
• M26: 23,734,151 km (0.112 R)
• M27: 25,488,784 km (0.059 R)
• M28: 26,674,796 km (0.036 R)
• M29: 27,422,786 km (0.094 R)
• M30: 30,555,515 km (0.094 R)
• M31: 35,130,816 km (0.041 R)
• M32: 35,690,910 km (0.116 R)
• M33: 38,226,295 km (0.091 R)

Asteroid Belt

Center: 6.15 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 6.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879.2

Radius: 7

Gravity: 17.94 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 6.66 AU - 6.82 AU

Year: 11479 Days

Day: 19.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 57,108,224 km

• M1: 87,515 km (0.091 R)
• M2: 338,540 km (0.113 R)
• M3: 808,277 km (0.049 R)
• M4: 1,852,321 km (0.088 R)
• M5: 2,288,847 km (0.106 R)
• M6: 2,725,374 km (0.1 R)
• M7: 3,628,048 km (0.089 R)
• M8: 4,878,387 km (0.119 R)
• M9: 7,921,058 km (0.118 R)
• M10: 9,835,013 km (0.082 R)
• M11: 10,591,529 km (0.084 R)
• M12: 10,983,924 km (0.11 R)
• M13: 15,818,928 km (0.112 R)
• M14: 17,937,383 km (0.114 R)
• M15: 22,913,457 km (0.08 R)
• M16: 25,216,965 km (0.091 R)
• M17: 26,526,844 km (0.102 R)
• M18: 28,414,769 km (0.106 R)
• M19: 33,883,768 km (0.118 R)
• M20: 34,613,058 km (0.119 R)
• M21: 39,344,090 km (0.056 R)
• M22: 42,492,378 km (0.114 R)
• M23: 42,773,921 km (0.09 R)
• M24: 43,340,448 km (0.118 R)
• M25: 45,804,624 km (0.116 R)
• M26: 46,845,825 km (0.037 R)
• M27: 47,296,863 km (0.068 R)
• M28: 50,535,806 km (0.085 R)
• M29: 53,754,853 km (0.093 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: 477 - 11,113 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit