🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.4

Radius: 12.9

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.65 AU - 0.85 AU

Year: 448 Days

Day: 6 Hours

Environment

Temp: -156 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 26,638,629 km

• M1: 160,519 km (0.09 R)
• M2: 648,656 km (0.099 R)
• M3: 1,076,656 km (0.075 R)
• M4: 1,932,655 km (0.055 R)
• M5: 2,535,983 km (0.064 R)
• M6: 3,018,735 km (0.047 R)
• M7: 3,552,201 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.6

Radius: 8.7

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.77 AU - 0.91 AU

Year: 531 Days

Day: 8.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 26,638,629 km

• M1: 108,159 km (0.085 R)
• M2: 405,111 km (0.109 R)
• M3: 727,046 km (0.064 R)
• M4: 1,110,315 km (0.032 R)
• M5: 1,626,278 km (0.068 R)
• M6: 1,902,436 km (0.076 R)
• M7: 2,605,397 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.3

Radius: 12.8

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.01 AU - 1.43 AU

Year: 930 Days

Day: 13.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 26,638,629 km

• M1: 159,172 km (0.089 R)
• M2: 773,421 km (0.107 R)
• M3: 1,205,609 km (0.098 R)
• M4: 1,617,602 km (0.12 R)
• M5: 2,082,253 km (0.103 R)
• M6: 2,845,800 km (0.109 R)
• M7: 3,287,712 km (0.061 R)
• M8: 3,841,524 km (0.045 R)
• M9: 5,025,142 km (0.116 R)
• M10: 5,503,706 km (0.117 R)
• M11: 6,121,844 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.6

Radius: 12.8

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.66 AU - 1.98 AU

Year: 1695 Days

Day: 14.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 26,638,629 km

• M1: 159,172 km (0.102 R)
• M2: 614,997 km (0.079 R)
• M3: 1,224,309 km (0.113 R)
• M4: 2,293,335 km (0.08 R)
• M5: 3,011,405 km (0.075 R)
• M6: 3,504,629 km (0.066 R)
• M7: 3,909,591 km (0.031 R)
• M8: 4,714,876 km (0.057 R)
• M9: 5,125,672 km (0.056 R)
• M10: 6,307,645 km (0.104 R)
• M11: 7,525,521 km (0.092 R)
• M12: 9,300,799 km (0.097 R)
• M13: 10,423,082 km (0.082 R)
• M14: 10,910,622 km (0.089 R)
• M15: 11,596,677 km (0.116 R)
• M16: 12,504,138 km (0.119 R)
• M17: 13,336,650 km (0.077 R)
• M18: 13,911,854 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.7

Radius: 11.5

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.77 AU - 2.65 AU

Year: 2268 Days

Day: 5.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 26,638,629 km

• M1: 143,315 km (0.116 R)
• M2: 657,183 km (0.095 R)
• M3: 1,139,786 km (0.038 R)
• M4: 1,502,112 km (0.104 R)
• M5: 1,888,972 km (0.085 R)
• M6: 2,644,292 km (0.059 R)
• M7: 3,016,641 km (0.084 R)
• M8: 3,798,140 km (0.085 R)
• M9: 4,256,059 km (0.063 R)
• M10: 7,853,439 km (0.06 R)
• M11: 8,754,916 km (0.096 R)
• M12: 9,166,460 km (0.114 R)
• M13: 10,096,959 km (0.109 R)
• M14: 11,722,788 km (0.083 R)
• M15: 12,184,298 km (0.043 R)
• M16: 14,239,773 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.7

Radius: 14.6

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 3.45 AU - 3.89 AU

Year: 4853 Days

Day: 8.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 26,638,629 km

• M1: 181,612 km (0.049 R)
• M2: 748,588 km (0.109 R)
• M3: 1,478,775 km (0.113 R)
• M4: 2,596,271 km (0.11 R)
• M5: 3,095,030 km (0.106 R)
• M6: 5,018,709 km (0.112 R)
• M7: 5,660,484 km (0.071 R)
• M8: 7,044,414 km (0.11 R)
• M9: 8,062,128 km (0.076 R)
• M10: 8,869,209 km (0.116 R)
• M11: 9,331,766 km (0.102 R)
• M12: 10,263,611 km (0.105 R)
• M13: 11,892,133 km (0.079 R)
• M14: 13,334,406 km (0.111 R)
• M15: 17,447,300 km (0.118 R)
• M16: 18,610,125 km (0.098 R)
• M17: 19,242,625 km (0.091 R)
• M18: 19,955,010 km (0.078 R)
• M19: 22,409,761 km (0.058 R)
• M20: 26,144,771 km (0.058 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.2

Radius: 11.7

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.24 AU - 4.16 AU

Year: 4913 Days

Day: 14.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 26,638,629 km

• M1: 145,559 km (0.06 R)
• M2: 694,284 km (0.081 R)
• M3: 1,062,145 km (0.103 R)
• M4: 1,875,808 km (0.088 R)
• M5: 2,318,318 km (0.108 R)
• M6: 2,691,565 km (0.032 R)
• M7: 4,270,421 km (0.093 R)
• M8: 4,709,491 km (0.079 R)
• M9: 12,708,489 km (0.041 R)
• M10: 15,577,177 km (0.108 R)
• M11: 17,344,826 km (0.097 R)
• M12: 23,746,867 km (0.118 R)
• M13: 24,355,281 km (0.037 R)
• M14: 24,740,795 km (0.037 R)
• M15: 28,141,753 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.3

Radius: 9.8

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 3.59 AU - 3.99 AU

Year: 5093 Days

Day: 6.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 26,638,629 km

• M1: 121,922 km (0.11 R)
• M2: 626,665 km (0.092 R)
• M3: 1,922,781 km (0.12 R)
• M4: 2,230,205 km (0.105 R)
• M5: 2,945,881 km (0.106 R)
• M6: 5,376,248 km (0.117 R)
• M7: 6,289,842 km (0.079 R)
• M8: 7,955,166 km (0.115 R)
• M9: 8,757,310 km (0.092 R)
• M10: 10,185,072 km (0.07 R)
• M11: 11,219,392 km (0.041 R)
• M12: 11,670,429 km (0.109 R)
• M13: 13,047,328 km (0.073 R)
• M14: 15,782,426 km (0.067 R)
• M15: 23,362,999 km (0.108 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: 181 - 19,150 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit