🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.7

Radius: 9.6

Gravity: 9.73 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.58 AU - 0.62 AU

Year: 321 Days

Day: 5.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 12,108,472 km

• M1: 119,379 km (0.075 R)
• M2: 505,491 km (0.101 R)
• M3: 876,793 km (0.115 R)
• M4: 1,456,934 km (0.107 R)
• M5: 1,909,467 km (0.103 R)
• M6: 2,216,292 km (0.043 R)
• M7: 2,818,723 km (0.115 R)
• M8: 3,387,793 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.8

Radius: 11.2

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.76 AU - 0.84 AU

Year: 494 Days

Day: 9.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 12,108,472 km

• M1: 140,772 km (0.032 R)
• M2: 576,101 km (0.076 R)
• M3: 1,112,410 km (0.09 R)
• M4: 1,554,023 km (0.09 R)
• M5: 1,912,459 km (0.098 R)
• M6: 2,392,070 km (0.064 R)
• M7: 3,006,319 km (0.075 R)
• M8: 3,521,384 km (0.066 R)
• M9: 3,986,185 km (0.098 R)
• M10: 4,375,588 km (0.107 R)
• M11: 4,729,686 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.5

Radius: 9.4

Gravity: 8.24 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.91 AU - 0.99 AU

Year: 639 Days

Day: 10.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 12,108,472 km

• M1: 116,836 km (0.113 R)
• M2: 419,772 km (0.115 R)
• M3: 737,966 km (0.025 R)
• M4: 1,097,450 km (0.067 R)
• M5: 1,391,709 km (0.12 R)
• M6: 1,748,051 km (0.109 R)
• M7: 2,933,016 km (0.103 R)
• M8: 3,289,807 km (0.085 R)
• M9: 4,256,957 km (0.113 R)
• M10: 4,949,296 km (0.113 R)
• M11: 5,865,433 km (0.108 R)
• M12: 6,434,653 km (0.057 R)
• M13: 7,323,863 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.7

Radius: 12.5

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.05 AU - 1.13 AU

Year: 786 Days

Day: 7 Hours

Environment

Temp: -169 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 12,108,472 km

• M1: 155,432 km (0.076 R)
• M2: 746,493 km (0.116 R)
• M3: 1,212,192 km (0.054 R)
• M4: 1,714,242 km (0.093 R)
• M5: 2,165,280 km (0.114 R)
• M6: 2,566,950 km (0.112 R)
• M7: 2,993,005 km (0.107 R)
• M8: 4,037,198 km (0.062 R)
• M9: 4,901,425 km (0.026 R)
• M10: 7,065,657 km (0.082 R)
• M11: 7,936,616 km (0.084 R)
• M12: 9,124,273 km (0.091 R)
• M13: 9,545,541 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.5

Radius: 13.9

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.92 AU - 1.4 AU

Year: 862 Days

Day: 7.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 12,108,472 km

• M1: 172,935 km (0.052 R)
• M2: 608,863 km (0.087 R)
• M3: 1,469,500 km (0.078 R)
• M4: 2,020,918 km (0.096 R)
• M5: 2,727,618 km (0.106 R)
• M6: 3,270,060 km (0.088 R)
• M7: 4,105,714 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161

Radius: 11.4

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.44 AU - 3.76 AU

Year: 3768 Days

Day: 9.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 12,108,472 km

• M1: 143,016 km (0.111 R)
• M2: 526,285 km (0.08 R)
• M3: 1,127,669 km (0.07 R)
• M4: 1,708,856 km (0.079 R)
• M5: 2,230,055 km (0.112 R)
• M6: 2,671,519 km (0.102 R)
• M7: 3,250,014 km (0.097 R)
• M8: 5,521,807 km (0.094 R)
• M9: 5,992,143 km (0.08 R)
• M10: 6,879,707 km (0.05 R)
• M11: 7,481,090 km (0.084 R)
• M12: 9,042,593 km (0.103 R)
• M13: 10,454,498 km (0.095 R)
• M14: 11,436,608 km (0.034 R)
• M15: 11,892,283 km (0.098 R)
• M16: 12,479,155 km (0.095 R)
• M17: 14,886,783 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.3

Radius: 8.9

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 3.98 AU - 4.92 AU

Year: 6480 Days

Day: 9.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 12,108,472 km

• M1: 110,702 km (0.074 R)
• M2: 1,051,374 km (0.051 R)
• M3: 1,692,850 km (0.071 R)
• M4: 5,695,490 km (0.074 R)
• M5: 9,544,943 km (0.108 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 324 - 20,137 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit