🌌 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: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.72

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.51 AU - 0.59 AU

Year: 268 Days

Day: 15 Hours

Environment

Temp: -114 °C

Axial Tilt: 0.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 918.5

Radius: 12.1

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.88 AU - 0.98 AU

Year: 588 Days

Day: 8 Hours

Environment

Temp: -160 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,575,282 km

• M1: 152,889 km (0.086 R)
• M2: 645,066 km (0.108 R)
• M3: 1,136,944 km (0.112 R)
• M4: 1,634,207 km (0.115 R)
• M5: 2,075,072 km (0.117 R)
• M6: 2,672,117 km (0.098 R)
• M7: 3,567,161 km (0.087 R)
• M8: 3,945,494 km (0.088 R)
• M9: 4,934,486 km (0.083 R)
• M10: 5,606,779 km (0.046 R)
• M11: 6,440,488 km (0.116 R)
• M12: 7,739,595 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.8

Radius: 9.9

Gravity: 6.62 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.97 AU - 1.25 AU

Year: 767 Days

Day: 14.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 32,575,282 km

• M1: 123,418 km (0.055 R)
• M2: 443,707 km (0.115 R)
• M3: 831,764 km (0.069 R)
• M4: 1,586,186 km (0.059 R)
• M5: 1,950,457 km (0.101 R)
• M6: 2,329,089 km (0.083 R)
• M7: 2,653,567 km (0.103 R)
• M8: 3,408,288 km (0.112 R)
• M9: 4,792,218 km (0.083 R)
• M10: 5,230,690 km (0.109 R)
• M11: 5,657,791 km (0.118 R)
• M12: 6,666,680 km (0.09 R)
• M13: 7,169,179 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.9

Radius: 10.6

Gravity: 8.23 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.27 AU - 1.37 AU

Year: 995 Days

Day: 12 Hours

Environment

Temp: -177 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 32,575,282 km

• M1: 132,095 km (0.111 R)
• M2: 546,930 km (0.084 R)
• M3: 1,057,208 km (0.113 R)
• M4: 2,536,133 km (0.074 R)
• M5: 2,997,044 km (0.093 R)
• M6: 3,334,836 km (0.091 R)
• M7: 3,873,687 km (0.068 R)
• M8: 4,258,752 km (0.056 R)
• M9: 4,837,098 km (0.086 R)
• M10: 5,612,164 km (0.069 R)
• M11: 7,333,138 km (0.113 R)
• M12: 7,951,426 km (0.085 R)
• M13: 8,632,246 km (0.078 R)
• M14: 10,203,921 km (0.089 R)
• M15: 10,909,275 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429

Radius: 8.3

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.16 AU - 2.72 AU

Year: 2500 Days

Day: 5.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 32,575,282 km

• M1: 104,569 km (0.099 R)
• M2: 580,440 km (0.039 R)
• M3: 896,091 km (0.079 R)
• M4: 1,362,388 km (0.105 R)
• M5: 1,687,763 km (0.078 R)
• M6: 2,017,626 km (0.096 R)
• M7: 2,483,773 km (0.052 R)
• M8: 2,779,379 km (0.116 R)
• M9: 3,544,422 km (0.055 R)
• M10: 4,128,004 km (0.083 R)
• M11: 4,503,793 km (0.096 R)
• M12: 4,816,603 km (0.052 R)
• M13: 5,143,773 km (0.117 R)
• M14: 6,215,492 km (0.105 R)
• M15: 6,551,190 km (0.118 R)
• M16: 7,008,361 km (0.065 R)
• M17: 7,315,485 km (0.082 R)
• M18: 8,077,088 km (0.068 R)
• M19: 8,352,797 km (0.055 R)
• M20: 9,518,763 km (0.052 R)
• M21: 10,000,468 km (0.075 R)
• M22: 10,606,938 km (0.108 R)
• M23: 11,814,791 km (0.104 R)
• M24: 12,290,662 km (0.062 R)
• M25: 14,456,689 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.4

Radius: 14.1

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 3.51 AU - 5.49 AU

Year: 6262 Days

Day: 13.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 32,575,282 km

• M1: 175,329 km (0.069 R)
• M2: 652,995 km (0.094 R)
• M3: 1,842,896 km (0.047 R)
• M4: 2,398,203 km (0.061 R)
• M5: 3,004,823 km (0.106 R)
• M6: 3,712,720 km (0.105 R)
• M7: 5,524,799 km (0.12 R)
• M8: 6,626,288 km (0.105 R)
• M9: 8,587,666 km (0.098 R)
• M10: 9,436,783 km (0.083 R)
• M11: 11,008,159 km (0.116 R)
• M12: 11,501,982 km (0.076 R)
• M13: 12,114,136 km (0.113 R)
• M14: 12,964,002 km (0.079 R)
• M15: 13,459,470 km (0.117 R)
• M16: 14,139,542 km (0.108 R)
• M17: 14,783,112 km (0.083 R)
• M18: 16,318,435 km (0.099 R)
• M19: 18,367,028 km (0.073 R)
• M20: 23,860,112 km (0.045 R)
• M21: 24,773,108 km (0.088 R)
• M22: 27,381,646 km (0.06 R)
• M23: 28,659,661 km (0.088 R)
• M24: 30,457,079 km (0.083 R)
• M25: 33,963,354 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 133.3

Radius: 7.4

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 6.99 AU - 7.43 AU

Year: 12700 Days

Day: 19.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 32,575,282 km

• M1: 108,010 km (0.094 R)
• M2: 581,487 km (0.117 R)
• M3: 1,916,947 km (0.062 R)
• M4: 2,916,111 km (0.118 R)
• M5: 3,274,548 km (0.028 R)
• M6: 5,235,477 km (0.119 R)
• M7: 7,537,938 km (0.115 R)
• M8: 7,946,639 km (0.066 R)
• M9: 10,126,579 km (0.072 R)
• M10: 12,780,595 km (0.077 R)
• M11: 18,598,456 km (0.112 R)
• M12: 25,634,642 km (0.079 R)
• M13: 30,199,472 km (0.097 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 383 - 12,957 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit