🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.91

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.47 AU - 0.55 AU

Year: 239 Days

Day: 20.5 Hours

Environment

Temp: -117 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.3

Radius: 13.1

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.64 AU - 0.9 AU

Year: 443 Days

Day: 6 Hours

Environment

Temp: -139 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,462,983 km

• M1: 163,062 km (0.072 R)
• M2: 614,997 km (0.031 R)
• M3: 1,163,572 km (0.071 R)
• M4: 1,681,630 km (0.025 R)
• M5: 2,416,903 km (0.098 R)
• M6: 3,300,129 km (0.071 R)
• M7: 3,779,590 km (0.118 R)
• M8: 4,472,677 km (0.081 R)
• M9: 5,031,575 km (0.074 R)
• M10: 5,770,439 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 402.5

Radius: 11.4

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.34 AU - 1.86 AU

Year: 1328 Days

Day: 12 Hours

Environment

Temp: -173 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,462,983 km

• M1: 141,819 km (0.038 R)
• M2: 543,339 km (0.067 R)
• M3: 949,797 km (0.11 R)
• M4: 1,354,310 km (0.098 R)
• M5: 1,856,510 km (0.056 R)
• M6: 2,412,864 km (0.092 R)
• M7: 5,242,657 km (0.072 R)
• M8: 5,929,162 km (0.111 R)
• M9: 6,360,303 km (0.097 R)
• M10: 7,141,503 km (0.062 R)
• M11: 8,784,537 km (0.106 R)
• M12: 9,577,555 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.9

Radius: 12.9

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 3.09 AU - 4.03 AU

Year: 4406 Days

Day: 14.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,462,983 km

• M1: 160,519 km (0.03 R)
• M2: 742,604 km (0.043 R)
• M3: 1,185,563 km (0.107 R)
• M4: 1,890,618 km (0.086 R)
• M5: 2,630,379 km (0.077 R)
• M6: 3,598,577 km (0.081 R)
• M7: 5,537,365 km (0.111 R)
• M8: 6,750,006 km (0.105 R)
• M9: 7,982,692 km (0.096 R)
• M10: 9,781,457 km (0.098 R)
• M11: 11,547,310 km (0.081 R)
• M12: 14,835,322 km (0.045 R)
• M13: 15,525,716 km (0.118 R)
• M14: 16,057,536 km (0.086 R)
• M15: 17,220,360 km (0.075 R)
• M16: 19,102,152 km (0.095 R)
• M17: 19,850,740 km (0.066 R)
• M18: 25,978,119 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.1

Radius: 14.9

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 4.26 AU - 5.06 AU

Year: 6599 Days

Day: 7.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 40,462,983 km

• M1: 185,352 km (0.1 R)
• M2: 795,262 km (0.062 R)
• M3: 1,897,350 km (0.105 R)
• M4: 2,416,006 km (0.095 R)
• M5: 4,225,990 km (0.055 R)
• M6: 5,369,068 km (0.082 R)
• M7: 6,566,299 km (0.075 R)
• M8: 7,615,280 km (0.032 R)
• M9: 10,826,697 km (0.064 R)
• M10: 11,386,642 km (0.083 R)
• M11: 12,290,213 km (0.065 R)
• M12: 14,000,715 km (0.07 R)
• M13: 16,522,187 km (0.086 R)
• M14: 17,128,956 km (0.091 R)
• M15: 19,556,182 km (0.083 R)
• M16: 20,696,865 km (0.039 R)
• M17: 21,244,094 km (0.059 R)
• M18: 27,542,464 km (0.089 R)
• M19: 28,014,744 km (0.075 R)
• M20: 28,588,452 km (0.118 R)
• M21: 30,057,354 km (0.109 R)
• M22: 31,678,995 km (0.095 R)
• M23: 32,301,920 km (0.104 R)
• M24: 34,656,292 km (0.062 R)
• M25: 37,583,623 km (0.099 R)
• M26: 38,399,081 km (0.111 R)
• M27: 40,186,476 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.9

Radius: 9.1

Gravity: 9.45 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 4.35 AU - 5.69 AU

Year: 7378 Days

Day: 11.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 40,462,983 km

• M1: 113,395 km (0.073 R)
• M2: 677,230 km (0.052 R)
• M3: 1,248,394 km (0.115 R)
• M4: 1,731,296 km (0.106 R)
• M5: 2,387,881 km (0.115 R)
• M6: 2,764,269 km (0.095 R)
• M7: 3,518,692 km (0.084 R)
• M8: 8,971,833 km (0.046 R)
• M9: 10,124,036 km (0.065 R)
• M10: 11,738,945 km (0.115 R)
• M11: 13,635,846 km (0.104 R)
• M12: 14,110,370 km (0.092 R)
• M13: 15,858,122 km (0.086 R)
• M14: 17,956,382 km (0.072 R)
• M15: 20,309,706 km (0.107 R)
• M16: 21,085,371 km (0.114 R)
• M17: 23,700,641 km (0.096 R)
• M18: 25,263,041 km (0.108 R)
• M19: 25,708,843 km (0.075 R)
• M20: 29,075,992 km (0.081 R)
• M21: 30,260,657 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 397.9

Radius: 4.2

Gravity: 22.56 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 6.14 AU - 6.3 AU

Year: 10176 Days

Day: 15.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 40,462,983 km

• M1: 55,052 km (0.11 R)
• M2: 194,178 km (0.063 R)
• M3: 683,662 km (0.086 R)
• M4: 830,119 km (0.063 R)
• M5: 1,413,999 km (0.093 R)
• M6: 1,697,188 km (0.086 R)
• M7: 2,234,843 km (0.097 R)
• M8: 2,776,686 km (0.1 R)
• M9: 3,154,421 km (0.089 R)
• M10: 3,637,323 km (0.091 R)
• M11: 4,037,198 km (0.12 R)
• M12: 4,465,646 km (0.089 R)
• M13: 4,864,923 km (0.064 R)
• M14: 6,136,804 km (0.07 R)
• M15: 6,960,639 km (0.098 R)
• M16: 8,650,646 km (0.096 R)
• M17: 9,001,005 km (0.103 R)
• M18: 9,729,995 km (0.078 R)
• M19: 11,047,952 km (0.056 R)
• M20: 11,356,124 km (0.05 R)
• M21: 12,151,985 km (0.065 R)
• M22: 12,814,853 km (0.102 R)
• M23: 13,853,810 km (0.084 R)
• M24: 15,967,329 km (0.103 R)
• M25: 19,525,813 km (0.092 R)
• M26: 26,116,048 km (0.076 R)
• M27: 27,124,338 km (0.113 R)
• M28: 31,725,220 km (0.104 R)
• M29: 33,723,998 km (0.119 R)
• M30: 34,808,881 km (0.103 R)
• M31: 37,277,246 km (0.078 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: 171 - 15,817 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit