🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.64

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.58 AU - 0.76 AU

Year: 360 Days

Day: 21.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 25.3 °

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: 760.2

Radius: 10.6

Gravity: 6.77 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.67 AU - 0.87 AU

Year: 443 Days

Day: 12.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 13,929,196 km

• M1: 131,796 km (0.072 R)
• M2: 468,241 km (0.118 R)
• M3: 821,592 km (0.078 R)
• M4: 1,217,427 km (0.074 R)
• M5: 1,546,992 km (0.114 R)
• M6: 2,290,942 km (0.055 R)
• M7: 3,413,075 km (0.106 R)
• M8: 3,828,509 km (0.112 R)
• M9: 4,165,702 km (0.113 R)
• M10: 5,547,987 km (0.102 R)
• M11: 5,892,810 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.3

Radius: 10

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.78 AU - 1.24 AU

Year: 666 Days

Day: 11.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 13,929,196 km

• M1: 124,316 km (0.077 R)
• M2: 920,326 km (0.082 R)
• M3: 1,238,521 km (0.093 R)
• M4: 1,665,473 km (0.076 R)
• M5: 2,230,953 km (0.055 R)
• M6: 2,600,759 km (0.104 R)
• M7: 3,032,349 km (0.103 R)
• M8: 3,364,606 km (0.104 R)
• M9: 3,685,792 km (0.112 R)
• M10: 4,470,882 km (0.09 R)
• M11: 4,889,008 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.4

Radius: 10.8

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.08 AU - 1.22 AU

Year: 809 Days

Day: 13.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 13,929,196 km

• M1: 134,339 km (0.098 R)
• M2: 522,097 km (0.084 R)
• M3: 960,718 km (0.118 R)
• M4: 1,547,590 km (0.045 R)
• M5: 1,967,511 km (0.076 R)
• M6: 2,494,544 km (0.072 R)
• M7: 4,659,226 km (0.091 R)
• M8: 6,361,201 km (0.073 R)
• M9: 6,933,712 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.1

Radius: 12.8

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.03 AU - 1.57 AU

Year: 972 Days

Day: 5.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 13,929,196 km

• M1: 159,471 km (0.088 R)
• M2: 742,005 km (0.102 R)
• M3: 1,154,148 km (0.089 R)
• M4: 1,982,471 km (0.111 R)
• M5: 2,541,518 km (0.091 R)
• M6: 3,376,574 km (0.111 R)
• M7: 4,710,239 km (0.106 R)
• M8: 5,992,292 km (0.047 R)
• M9: 7,596,729 km (0.104 R)
• M10: 8,805,779 km (0.055 R)
• M11: 9,265,195 km (0.09 R)
• M12: 11,001,278 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.3

Radius: 10.1

Gravity: 6.52 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.51 AU - 1.71 AU

Year: 1340 Days

Day: 6.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 13,929,196 km

• M1: 125,662 km (0.077 R)
• M2: 506,538 km (0.111 R)
• M3: 855,550 km (0.114 R)
• M4: 1,239,418 km (0.111 R)
• M5: 1,609,075 km (0.074 R)
• M6: 2,905,041 km (0.114 R)
• M7: 3,412,327 km (0.107 R)
• M8: 3,744,435 km (0.099 R)
• M9: 4,168,096 km (0.082 R)
• M10: 4,585,923 km (0.119 R)
• M11: 6,860,858 km (0.109 R)
• M12: 7,471,366 km (0.069 R)
• M13: 8,172,980 km (0.111 R)
• M14: 9,006,839 km (0.091 R)
• M15: 10,184,025 km (0.071 R)
• M16: 10,776,283 km (0.112 R)
• M17: 11,426,136 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.9

Radius: 14.6

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.47 AU - 2.39 AU

Year: 1759 Days

Day: 14.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 13,929,196 km

• M1: 181,761 km (0.115 R)
• M2: 638,035 km (0.102 R)
• M3: 1,265,748 km (0.112 R)
• M4: 1,761,066 km (0.108 R)
• M5: 3,122,257 km (0.117 R)
• M6: 3,682,800 km (0.12 R)
• M7: 4,310,363 km (0.066 R)
• M8: 5,101,287 km (0.089 R)
• M9: 5,925,123 km (0.079 R)
• M10: 7,689,630 km (0.085 R)
• M11: 8,375,686 km (0.115 R)
• M12: 8,964,652 km (0.048 R)
• M13: 9,841,296 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.8

Radius: 13.1

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.82 AU - 2.08 AU

Year: 1786 Days

Day: 11.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 13,929,196 km

• M1: 163,211 km (0.07 R)
• M2: 680,521 km (0.114 R)
• M3: 1,168,359 km (0.072 R)
• M4: 1,863,092 km (0.081 R)
• M5: 2,342,703 km (0.09 R)
• M6: 2,975,801 km (0.09 R)
• M7: 3,978,555 km (0.084 R)
• M8: 4,864,474 km (0.12 R)
• M9: 5,496,226 km (0.096 R)
• M10: 6,087,437 km (0.102 R)
• M11: 8,293,108 km (0.051 R)
• M12: 9,544,195 km (0.116 R)
• M13: 10,165,175 km (0.056 R)
• M14: 12,610,801 km (0.12 R)
• M15: 13,764,650 km (0.091 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 539 - 12,755 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit