🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.52 AU - 0.6 AU

Year: 271 Days

Day: 23.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 50 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47.9

Radius: 13.5

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.75 AU - 0.99 AU

Year: 524 Days

Day: 10.2 Hours

Environment

Temp: -142 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,114,756 km

• M1: 168,447 km (0.047 R)
• M2: 763,248 km (0.062 R)
• M3: 1,190,799 km (0.106 R)
• M4: 1,631,514 km (0.076 R)
• M5: 2,138,053 km (0.117 R)
• M6: 2,612,428 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.4

Radius: 12.8

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.03 AU - 1.25 AU

Year: 786 Days

Day: 10.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,114,756 km

• M1: 159,172 km (0.099 R)
• M2: 584,180 km (0.09 R)
• M3: 1,002,755 km (0.116 R)
• M4: 1,585,887 km (0.114 R)
• M5: 2,142,690 km (0.104 R)
• M6: 3,424,744 km (0.044 R)
• M7: 3,984,988 km (0.096 R)
• M8: 4,622,275 km (0.059 R)
• M9: 5,290,828 km (0.113 R)
• M10: 5,886,676 km (0.028 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.4

Radius: 14

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.97 AU - 2.41 AU

Year: 2093 Days

Day: 7.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 43,114,756 km

• M1: 174,132 km (0.118 R)
• M2: 652,247 km (0.053 R)
• M3: 1,120,787 km (0.081 R)
• M4: 2,298,870 km (0.09 R)
• M5: 3,005,122 km (0.112 R)
• M6: 3,907,347 km (0.079 R)
• M7: 4,363,171 km (0.105 R)
• M8: 5,974,789 km (0.088 R)
• M9: 6,609,384 km (0.11 R)
• M10: 7,689,031 km (0.043 R)
• M11: 8,503,293 km (0.063 R)
• M12: 10,197,638 km (0.108 R)
• M13: 10,773,141 km (0.05 R)
• M14: 14,157,643 km (0.087 R)
• M15: 14,647,876 km (0.115 R)
• M16: 15,804,716 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 791.6

Radius: 11.8

Gravity: 5.69 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 3.52 AU - 3.76 AU

Year: 4484 Days

Day: 11.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 43,114,756 km

• M1: 148,251 km (0.077 R)
• M2: 583,282 km (0.114 R)
• M3: 1,299,258 km (0.086 R)
• M4: 1,668,315 km (0.086 R)
• M5: 2,123,542 km (0.1 R)
• M6: 2,730,610 km (0.045 R)
• M7: 3,471,119 km (0.108 R)
• M8: 3,856,035 km (0.109 R)
• M9: 4,389,650 km (0.057 R)
• M10: 5,241,012 km (0.093 R)
• M11: 5,779,415 km (0.09 R)
• M12: 6,543,710 km (0.071 R)
• M13: 7,478,398 km (0.106 R)
• M14: 9,779,063 km (0.077 R)
• M15: 10,420,988 km (0.062 R)
• M16: 12,715,669 km (0.111 R)
• M17: 14,222,419 km (0.093 R)
• M18: 15,903,002 km (0.105 R)
• M19: 18,927,123 km (0.118 R)
• M20: 19,992,409 km (0.082 R)
• M21: 21,027,028 km (0.086 R)
• M22: 23,731,458 km (0.052 R)
• M23: 25,127,655 km (0.111 R)
• M24: 25,765,391 km (0.084 R)
• M25: 26,824,693 km (0.105 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 761.6

Radius: 4.1

Gravity: 45.31 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 5.81 AU - 6.81 AU

Year: 10234 Days

Day: 21.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 43,114,756 km

• M1: 51,162 km (0.051 R)
• M2: 298,448 km (0.061 R)
• M3: 436,078 km (0.113 R)
• M4: 609,611 km (0.091 R)
• M5: 791,822 km (0.032 R)
• M6: 1,009,935 km (0.07 R)
• M7: 1,438,533 km (0.111 R)
• M8: 1,686,417 km (0.027 R)
• M9: 2,101,850 km (0.088 R)
• M10: 2,401,495 km (0.116 R)
• M11: 2,993,603 km (0.066 R)
• M12: 4,028,521 km (0.116 R)
• M13: 4,796,407 km (0.038 R)
• M14: 5,657,343 km (0.09 R)
• M15: 6,348,335 km (0.036 R)
• M16: 6,616,564 km (0.092 R)
• M17: 7,299,329 km (0.107 R)
• M18: 8,945,803 km (0.111 R)
• M19: 9,234,228 km (0.071 R)
• M20: 10,033,828 km (0.109 R)
• M21: 11,941,800 km (0.102 R)
• M22: 19,169,770 km (0.114 R)
• M23: 20,631,491 km (0.069 R)
• M24: 20,798,442 km (0.073 R)
• M25: 22,782,709 km (0.115 R)
• M26: 24,514,154 km (0.037 R)
• M27: 28,339,372 km (0.075 R)
• M28: 29,275,256 km (0.05 R)
• M29: 33,800,741 km (0.077 R)
• M30: 35,089,677 km (0.114 R)
• M31: 43,244,256 km (0.111 R)
• M32: 45,041,824 km (0.114 R)
• M33: 46,888,610 km (0.101 R)
• M34: 47,177,185 km (0.049 R)

Asteroid Belt

Center: 6.69 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 7.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 339.8

Radius: 7.7

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 6.62 AU - 7.5 AU

Year: 12112 Days

Day: 20.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 43,114,756 km

• M1: 95,743 km (0.116 R)
• M2: 647,011 km (0.09 R)
• M3: 971,040 km (0.057 R)
• M4: 1,304,344 km (0.111 R)
• M5: 2,512,646 km (0.085 R)
• M6: 3,989,775 km (0.119 R)
• M7: 4,794,163 km (0.096 R)
• M8: 5,313,417 km (0.077 R)
• M9: 8,062,577 km (0.091 R)
• M10: 8,445,997 km (0.033 R)
• M11: 8,796,804 km (0.11 R)
• M12: 10,249,549 km (0.066 R)
• M13: 11,110,634 km (0.1 R)
• M14: 12,240,098 km (0.074 R)
• M15: 14,351,073 km (0.03 R)
• M16: 16,354,039 km (0.106 R)
• M17: 18,244,358 km (0.065 R)
• M18: 19,506,665 km (0.083 R)
• M19: 24,251,610 km (0.08 R)
• M20: 24,961,153 km (0.113 R)
• M21: 27,553,833 km (0.114 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 411 - 18,782 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit