🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.08

Radius: 1.03

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.52 AU - 0.6 AU

Year: 271 Days

Day: 31 Hours

Environment

Temp: -119 °C

Axial Tilt: 13.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.22

Radius: 0.55

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.53 AU - 0.59 AU

Year: 271 Days

Day: 39.5 Hours

Environment

Temp: -132 °C

Axial Tilt: 2.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 15,799,406 km

• M1: 189,092 km (0.106 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.65

Radius: 1.22

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.63 AU - 0.67 AU

Year: 338 Days

Day: 14.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 20.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 15,799,406 km

• M1: 28,424 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45

Radius: 9.4

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.69 AU - 0.81 AU

Year: 419 Days

Day: 11.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 15,799,406 km

• M1: 117,285 km (0.049 R)
• M2: 445,203 km (0.078 R)
• M3: 804,986 km (0.053 R)
• M4: 1,189,752 km (0.086 R)
• M5: 1,675,047 km (0.069 R)
• M6: 2,217,040 km (0.034 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.8

Radius: 14

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.82 AU - 1.04 AU

Year: 579 Days

Day: 9 Hours

Environment

Temp: -149 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 15,799,406 km

• M1: 174,132 km (0.12 R)
• M2: 664,663 km (0.105 R)
• M3: 1,108,520 km (0.067 R)
• M4: 1,817,614 km (0.109 R)
• M5: 2,340,309 km (0.115 R)
• M6: 2,872,728 km (0.045 R)
• M7: 3,409,485 km (0.108 R)
• M8: 3,900,615 km (0.089 R)
• M9: 4,454,426 km (0.106 R)
• M10: 4,912,046 km (0.082 R)
• M11: 5,595,260 km (0.109 R)
• M12: 6,380,050 km (0.113 R)

Asteroid Belt

Center: 1.3 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47.2

Radius: 13.7

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.3 AU - 2.02 AU

Year: 1381 Days

Day: 10.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 15,799,406 km

• M1: 171,140 km (0.116 R)
• M2: 658,380 km (0.104 R)
• M3: 1,245,851 km (0.078 R)
• M4: 1,803,103 km (0.1 R)
• M5: 2,262,369 km (0.1 R)
• M6: 3,191,970 km (0.108 R)
• M7: 3,935,621 km (0.05 R)
• M8: 4,777,857 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.8

Radius: 14.7

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.62 AU - 2.04 AU

Year: 1598 Days

Day: 15 Hours

Environment

Temp: -179 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 15,799,406 km

• M1: 182,809 km (0.115 R)
• M2: 684,709 km (0.116 R)
• M3: 1,386,473 km (0.114 R)
• M4: 1,871,170 km (0.114 R)
• M5: 3,076,031 km (0.076 R)
• M6: 4,011,766 km (0.117 R)
• M7: 6,001,268 km (0.067 R)
• M8: 7,049,949 km (0.046 R)
• M9: 9,054,411 km (0.077 R)
• M10: 10,363,093 km (0.039 R)
• M11: 12,064,769 km (0.106 R)
• M12: 13,105,521 km (0.113 R)
• M13: 13,860,542 km (0.106 R)
• M14: 14,957,244 km (0.118 R)
• M15: 15,596,176 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.7

Radius: 11.6

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.88 AU - 1.92 AU

Year: 1691 Days

Day: 9.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 15,799,406 km

• M1: 146,456 km (0.083 R)
• M2: 846,874 km (0.094 R)
• M3: 1,225,655 km (0.114 R)
• M4: 1,754,783 km (0.027 R)
• M5: 2,521,323 km (0.039 R)
• M6: 3,555,193 km (0.073 R)
• M7: 4,493,471 km (0.106 R)
• M8: 4,994,175 km (0.047 R)
• M9: 6,967,820 km (0.063 R)
• M10: 7,427,235 km (0.119 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.4

Radius: 14.9

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.92 AU - 2.36 AU

Year: 2021 Days

Day: 13.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 15,799,406 km

• M1: 185,501 km (0.093 R)
• M2: 677,978 km (0.111 R)
• M3: 1,261,409 km (0.069 R)
• M4: 2,044,853 km (0.082 R)
• M5: 2,536,282 km (0.082 R)
• M6: 3,001,532 km (0.073 R)
• M7: 3,799,636 km (0.104 R)
• M8: 4,553,011 km (0.065 R)
• M9: 6,772,445 km (0.085 R)
• M10: 7,509,813 km (0.073 R)
• M11: 9,308,279 km (0.115 R)
• M12: 12,185,943 km (0.047 R)
• M13: 12,785,232 km (0.104 R)
• M14: 14,926,277 km (0.081 R)
• M15: 15,473,805 km (0.055 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: 246 - 14,572 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit