🌌 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: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.64 AU - 0.7 AU

Year: 354 Days

Day: 40.2 Hours

Environment

Temp: -138 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 9,749,863 km

• M1: 44,281 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.4

Radius: 12.3

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.83 AU - 0.91 AU

Year: 524 Days

Day: 13.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 9,749,863 km

• M1: 153,039 km (0.111 R)
• M2: 730,486 km (0.105 R)
• M3: 1,118,394 km (0.096 R)
• M4: 1,843,794 km (0.119 R)
• M5: 2,405,384 km (0.116 R)
• M6: 2,930,622 km (0.115 R)
• M7: 3,392,581 km (0.097 R)
• M8: 3,807,864 km (0.104 R)
• M9: 4,330,709 km (0.087 R)
• M10: 5,080,044 km (0.089 R)
• M11: 5,608,723 km (0.104 R)
• M12: 6,155,204 km (0.117 R)
• M13: 6,578,267 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823.6

Radius: 9.9

Gravity: 8.4 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.42 AU - 2.08 AU

Year: 1495 Days

Day: 12.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 9,749,863 km

• M1: 123,418 km (0.116 R)
• M2: 629,957 km (0.074 R)
• M3: 973,882 km (0.045 R)
• M4: 1,385,725 km (0.111 R)
• M5: 1,956,142 km (0.09 R)
• M6: 2,503,969 km (0.04 R)
• M7: 5,217,076 km (0.119 R)
• M8: 6,008,150 km (0.099 R)
• M9: 6,321,707 km (0.086 R)
• M10: 7,328,500 km (0.099 R)
• M11: 7,970,425 km (0.119 R)
• M12: 8,558,793 km (0.081 R)
• M13: 9,334,608 km (0.108 R)
• M14: 11,719,497 km (0.074 R)
• M15: 12,912,989 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.9

Radius: 13

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.73 AU - 2.39 AU

Year: 1909 Days

Day: 6.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 172 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 9,749,863 km

• M1: 161,715 km (0.112 R)
• M2: 594,951 km (0.103 R)
• M3: 1,215,632 km (0.059 R)
• M4: 2,137,754 km (0.086 R)
• M5: 2,607,790 km (0.043 R)
• M6: 4,340,433 km (0.073 R)
• M7: 5,123,428 km (0.05 R)
• M8: 6,044,652 km (0.101 R)
• M9: 7,021,974 km (0.119 R)
• M10: 7,794,348 km (0.118 R)
• M11: 8,301,784 km (0.087 R)
• M12: 10,795,431 km (0.06 R)
• M13: 11,935,068 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.3

Radius: 9.4

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.22 AU - 3.26 AU

Year: 2928 Days

Day: 12.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 9,749,863 km

• M1: 116,986 km (0.049 R)
• M2: 417,079 km (0.109 R)
• M3: 1,718,281 km (0.09 R)
• M4: 2,480,183 km (0.12 R)
• M5: 3,024,570 km (0.072 R)
• M6: 3,499,842 km (0.101 R)
• M7: 4,095,541 km (0.115 R)
• M8: 5,666,169 km (0.101 R)
• M9: 6,812,687 km (0.081 R)
• M10: 8,221,899 km (0.1 R)
• M11: 10,244,911 km (0.104 R)
• M12: 10,549,193 km (0.046 R)
• M13: 10,999,183 km (0.116 R)
• M14: 11,389,933 km (0.062 R)
• M15: 12,426,347 km (0.118 R)
• M16: 12,928,547 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.1

Radius: 10.9

Gravity: 7.95 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 3.92 AU - 4.44 AU

Year: 5518 Days

Day: 10.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 9,749,863 km

• M1: 136,882 km (0.117 R)
• M2: 476,320 km (0.116 R)
• M3: 1,130,362 km (0.111 R)
• M4: 1,480,121 km (0.056 R)
• M5: 1,860,399 km (0.111 R)
• M6: 2,407,329 km (0.043 R)
• M7: 2,747,514 km (0.112 R)
• M8: 3,708,232 km (0.048 R)
• M9: 4,394,886 km (0.047 R)
• M10: 6,183,628 km (0.063 R)
• M11: 6,899,155 km (0.114 R)
• M12: 12,613,943 km (0.108 R)
• M13: 16,526,376 km (0.107 R)
• M14: 18,241,216 km (0.119 R)
• M15: 18,722,473 km (0.056 R)
• M16: 19,141,646 km (0.103 R)
• M17: 19,998,991 km (0.049 R)
• M18: 21,944,063 km (0.115 R)
• M19: 22,962,525 km (0.095 R)
• M20: 24,424,396 km (0.091 R)
• M21: 30,508,691 km (0.079 R)
• M22: 34,626,970 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.4

Radius: 12.3

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 3.45 AU - 4.99 AU

Year: 5597 Days

Day: 11.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 74.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 9,749,863 km

• M1: 153,487 km (0.116 R)
• M2: 731,085 km (0.044 R)
• M3: 1,758,373 km (0.052 R)
• M4: 2,288,698 km (0.116 R)
• M5: 3,224,133 km (0.105 R)
• M6: 3,840,477 km (0.09 R)
• M7: 5,178,031 km (0.03 R)
• M8: 8,777,057 km (0.042 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 256 - 13,775 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit