🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.65

Radius: 0.84

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.57 AU - 0.61 AU

Year: 297 Days

Day: 41.2 Hours

Environment

Temp: -128 °C

Axial Tilt: 17.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 28,515,085 km

• M1: 348,713 km (0.096 R)

Asteroid Belt

Center: 0.84 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.8

Radius: 8.1

Gravity: 10.15 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.06 AU - 1.12 AU

Year: 747 Days

Day: 9.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,515,085 km

• M1: 101,577 km (0.114 R)
• M2: 609,462 km (0.052 R)
• M3: 910,303 km (0.075 R)
• M4: 1,276,967 km (0.07 R)
• M5: 1,681,929 km (0.117 R)
• M6: 2,343,002 km (0.105 R)
• M7: 3,309,853 km (0.076 R)
• M8: 4,375,289 km (0.082 R)
• M9: 5,030,528 km (0.106 R)
• M10: 6,023,708 km (0.119 R)
• M11: 6,472,352 km (0.099 R)
• M12: 8,269,321 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.8

Radius: 14.4

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.3 AU - 1.5 AU

Year: 1087 Days

Day: 14.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 28,515,085 km

• M1: 180,565 km (0.103 R)
• M2: 671,545 km (0.099 R)
• M3: 1,451,698 km (0.117 R)
• M4: 3,367,298 km (0.057 R)
• M5: 3,920,511 km (0.037 R)
• M6: 4,414,633 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.3

Radius: 9.2

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.87 AU - 2.43 AU

Year: 2068 Days

Day: 13.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 28,515,085 km

• M1: 115,190 km (0.086 R)
• M2: 439,070 km (0.079 R)
• M3: 785,688 km (0.04 R)
• M4: 1,954,347 km (0.074 R)
• M5: 2,342,403 km (0.105 R)
• M6: 2,795,685 km (0.052 R)
• M7: 3,669,486 km (0.101 R)
• M8: 6,639,154 km (0.096 R)
• M9: 7,192,217 km (0.104 R)
• M10: 7,890,091 km (0.08 R)
• M11: 8,270,518 km (0.063 R)
• M12: 8,602,027 km (0.031 R)
• M13: 10,085,290 km (0.116 R)
• M14: 13,018,904 km (0.116 R)
• M15: 13,759,264 km (0.093 R)
• M16: 14,182,626 km (0.113 R)
• M17: 14,745,862 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718

Radius: 9.5

Gravity: 7.96 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.44 AU - 2.46 AU

Year: 2516 Days

Day: 13.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 28,515,085 km

• M1: 118,482 km (0.094 R)
• M2: 588,518 km (0.089 R)
• M3: 930,948 km (0.111 R)
• M4: 1,380,340 km (0.046 R)
• M5: 1,727,556 km (0.108 R)
• M6: 2,172,011 km (0.109 R)
• M7: 3,171,774 km (0.048 R)
• M8: 3,803,675 km (0.087 R)
• M9: 4,367,659 km (0.079 R)
• M10: 4,826,476 km (0.119 R)
• M11: 6,648,429 km (0.119 R)
• M12: 7,137,913 km (0.104 R)
• M13: 7,838,480 km (0.069 R)
• M14: 9,060,545 km (0.094 R)
• M15: 10,216,188 km (0.095 R)
• M16: 10,907,929 km (0.029 R)
• M17: 12,905,509 km (0.112 R)
• M18: 14,224,214 km (0.091 R)
• M19: 14,795,379 km (0.055 R)
• M20: 16,810,163 km (0.047 R)
• M21: 17,180,717 km (0.119 R)
• M22: 18,436,741 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.9

Radius: 8.5

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 2.72 AU - 3.46 AU

Year: 3563 Days

Day: 9.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 28,515,085 km

• M1: 105,766 km (0.067 R)
• M2: 389,702 km (0.094 R)
• M3: 699,220 km (0.114 R)
• M4: 1,708,856 km (0.086 R)
• M5: 2,378,157 km (0.113 R)
• M6: 3,379,565 km (0.068 R)
• M7: 4,071,306 km (0.114 R)
• M8: 4,369,006 km (0.058 R)
• M9: 4,986,247 km (0.093 R)
• M10: 5,374,453 km (0.103 R)
• M11: 5,832,073 km (0.055 R)
• M12: 6,963,781 km (0.104 R)
• M13: 7,275,393 km (0.05 R)
• M14: 7,896,374 km (0.092 R)
• M15: 8,298,194 km (0.083 R)
• M16: 11,621,959 km (0.101 R)
• M17: 14,793,883 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.1

Radius: 13.5

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 3.4 AU - 4.46 AU

Year: 5111 Days

Day: 7.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 28,515,085 km

• M1: 168,597 km (0.114 R)
• M2: 654,640 km (0.063 R)
• M3: 1,205,310 km (0.114 R)
• M4: 1,723,367 km (0.099 R)
• M5: 2,164,831 km (0.066 R)
• M6: 2,873,476 km (0.1 R)
• M7: 3,972,571 km (0.094 R)
• M8: 5,199,573 km (0.115 R)
• M9: 5,756,227 km (0.041 R)
• M10: 7,155,266 km (0.1 R)
• M11: 7,703,991 km (0.075 R)
• M12: 9,643,079 km (0.07 R)
• M13: 11,015,190 km (0.109 R)
• M14: 13,363,129 km (0.043 R)
• M15: 15,683,542 km (0.085 R)
• M16: 18,898,998 km (0.098 R)
• M17: 20,017,392 km (0.111 R)
• M18: 20,901,964 km (0.089 R)
• M19: 24,548,861 km (0.05 R)
• M20: 25,013,213 km (0.08 R)
• M21: 27,093,820 km (0.075 R)
• M22: 27,673,213 km (0.103 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 321 - 15,194 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit