🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.6

Radius: 12.8

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.52 AU - 0.62 AU

Year: 297 Days

Day: 11.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,791,365 km

• M1: 159,172 km (0.104 R)
• M2: 671,545 km (0.076 R)
• M3: 1,071,570 km (0.04 R)
• M4: 1,651,261 km (0.063 R)
• M5: 2,069,387 km (0.107 R)
• M6: 2,909,679 km (0.079 R)
• M7: 3,476,505 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.6

Radius: 11.7

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.51 AU - 0.75 AU

Year: 345 Days

Day: 5.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,791,365 km

• M1: 146,756 km (0.096 R)
• M2: 604,675 km (0.066 R)
• M3: 1,126,921 km (0.047 R)
• M4: 1,611,319 km (0.059 R)
• M5: 2,131,171 km (0.091 R)
• M6: 2,615,270 km (0.091 R)
• M7: 3,172,223 km (0.032 R)
• M8: 3,657,818 km (0.045 R)
• M9: 4,318,591 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.9

Radius: 13.3

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.02 AU - 1.16 AU

Year: 786 Days

Day: 5.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,791,365 km

• M1: 169,046 km (0.105 R)
• M2: 826,827 km (0.114 R)
• M3: 1,582,446 km (0.085 R)
• M4: 2,047,696 km (0.119 R)
• M5: 2,538,227 km (0.11 R)
• M6: 3,197,355 km (0.07 R)
• M7: 3,617,725 km (0.096 R)
• M8: 6,776,484 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.5

Radius: 10

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.22 AU - 1.48 AU

Year: 1083 Days

Day: 7.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,791,365 km

• M1: 124,316 km (0.074 R)
• M2: 455,077 km (0.088 R)
• M3: 822,788 km (0.112 R)
• M4: 1,275,471 km (0.09 R)
• M5: 1,758,224 km (0.079 R)
• M6: 2,084,198 km (0.109 R)
• M7: 2,639,355 km (0.062 R)
• M8: 3,094,133 km (0.117 R)
• M9: 4,652,195 km (0.035 R)
• M10: 5,011,229 km (0.111 R)
• M11: 5,406,317 km (0.109 R)
• M12: 6,516,034 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.8

Radius: 10.4

Gravity: 6.13 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.51 AU - 1.85 AU

Year: 1503 Days

Day: 5 Hours

Environment

Temp: -197 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 21,791,365 km

• M1: 129,402 km (0.12 R)
• M2: 494,870 km (0.035 R)
• M3: 1,112,709 km (0.082 R)
• M4: 1,438,234 km (0.075 R)
• M5: 2,196,246 km (0.09 R)
• M6: 2,827,699 km (0.082 R)
• M7: 3,479,946 km (0.106 R)
• M8: 3,927,991 km (0.066 R)
• M9: 5,124,924 km (0.106 R)
• M10: 5,617,699 km (0.026 R)
• M11: 6,212,500 km (0.113 R)
• M12: 6,549,993 km (0.061 R)
• M13: 6,950,616 km (0.107 R)
• M14: 7,555,291 km (0.091 R)
• M15: 8,251,819 km (0.115 R)
• M16: 9,837,706 km (0.118 R)
• M17: 10,297,270 km (0.113 R)
• M18: 11,188,874 km (0.095 R)
• M19: 11,835,735 km (0.1 R)
• M20: 12,660,019 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.6

Radius: 14.2

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 2.07 AU - 3.35 AU

Year: 3079 Days

Day: 8.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,791,365 km

• M1: 176,675 km (0.117 R)
• M2: 640,279 km (0.09 R)
• M3: 1,122,134 km (0.117 R)
• M4: 1,630,766 km (0.114 R)
• M5: 2,093,921 km (0.078 R)
• M6: 2,570,091 km (0.106 R)
• M7: 3,259,588 km (0.104 R)
• M8: 4,154,183 km (0.085 R)
• M9: 5,281,553 km (0.052 R)
• M10: 6,691,363 km (0.056 R)
• M11: 7,141,653 km (0.097 R)
• M12: 7,612,138 km (0.047 R)
• M13: 8,580,784 km (0.053 R)
• M14: 12,115,184 km (0.119 R)
• M15: 15,987,225 km (0.067 R)
• M16: 16,469,080 km (0.102 R)
• M17: 18,435,694 km (0.061 R)
• M18: 19,688,277 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 75.7

Radius: 5

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 4.86 AU - 6.4 AU

Year: 9221 Days

Day: 16.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 21,791,365 km

• M1: 63,280 km (0.061 R)
• M2: 326,572 km (0.106 R)
• M3: 539,151 km (0.115 R)
• M4: 1,084,435 km (0.1 R)
• M5: 1,938,489 km (0.104 R)
• M6: 2,177,247 km (0.112 R)
• M7: 3,370,889 km (0.064 R)
• M8: 3,541,131 km (0.093 R)
• M9: 4,214,621 km (0.117 R)
• M10: 4,412,389 km (0.112 R)
• M11: 6,481,178 km (0.07 R)
• M12: 7,231,561 km (0.102 R)
• M13: 9,192,490 km (0.065 R)
• M14: 10,453,301 km (0.085 R)
• M15: 11,187,527 km (0.12 R)
• M16: 12,895,187 km (0.052 R)
• M17: 13,883,131 km (0.104 R)
• M18: 14,321,603 km (0.054 R)
• M19: 15,744,877 km (0.12 R)
• M20: 20,701,952 km (0.06 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 488 - 15,729 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit