🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.7

Radius: 8.8

Gravity: 7.05 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.68 AU - 0.72 AU

Year: 378 Days

Day: 9.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,367,403 km

• M1: 110,104 km (0.116 R)
• M2: 485,295 km (0.073 R)
• M3: 782,247 km (0.087 R)
• M4: 1,242,859 km (0.12 R)
• M5: 1,676,394 km (0.031 R)
• M6: 1,983,219 km (0.078 R)
• M7: 2,442,036 km (0.079 R)
• M8: 3,084,858 km (0.1 R)
• M9: 4,254,863 km (0.053 R)
• M10: 4,788,927 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.3

Radius: 13

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.69 AU - 0.79 AU

Year: 411 Days

Day: 6.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,367,403 km

• M1: 162,164 km (0.118 R)
• M2: 578,645 km (0.052 R)
• M3: 1,020,856 km (0.086 R)
• M4: 1,522,607 km (0.12 R)
• M5: 2,189,514 km (0.107 R)
• M6: 3,333,938 km (0.101 R)
• M7: 3,777,346 km (0.107 R)
• M8: 4,287,475 km (0.059 R)
• M9: 5,054,762 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358

Radius: 13.6

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.95 AU - 0.99 AU

Year: 617 Days

Day: 9.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,367,403 km

• M1: 169,195 km (0.061 R)
• M2: 661,372 km (0.098 R)
• M3: 1,091,616 km (0.075 R)
• M4: 1,585,737 km (0.119 R)
• M5: 2,383,244 km (0.094 R)
• M6: 3,146,193 km (0.027 R)
• M7: 3,629,095 km (0.035 R)
• M8: 4,454,277 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.4

Radius: 14.1

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.08 AU - 1.2 AU

Year: 786 Days

Day: 10.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,367,403 km

• M1: 175,329 km (0.054 R)
• M2: 630,555 km (0.066 R)
• M3: 1,132,007 km (0.101 R)
• M4: 1,628,672 km (0.09 R)
• M5: 2,585,201 km (0.06 R)
• M6: 3,146,642 km (0.071 R)
• M7: 3,732,168 km (0.083 R)
• M8: 4,950,493 km (0.044 R)
• M9: 5,393,003 km (0.096 R)
• M10: 6,156,401 km (0.049 R)
• M11: 6,711,559 km (0.058 R)
• M12: 7,549,756 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.1

Radius: 13.1

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.3 AU - 2.52 AU

Year: 2416 Days

Day: 12.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 32,367,403 km

• M1: 163,211 km (0.106 R)
• M2: 590,164 km (0.099 R)
• M3: 1,272,629 km (0.09 R)
• M4: 2,899,506 km (0.062 R)
• M5: 3,613,537 km (0.119 R)
• M6: 4,075,046 km (0.106 R)
• M7: 4,751,827 km (0.066 R)
• M8: 5,372,060 km (0.06 R)
• M9: 6,674,758 km (0.05 R)
• M10: 7,083,310 km (0.104 R)
• M11: 9,009,981 km (0.071 R)
• M12: 9,995,681 km (0.079 R)
• M13: 12,638,776 km (0.089 R)
• M14: 13,587,825 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785

Radius: 12.7

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 2.04 AU - 2.92 AU

Year: 2522 Days

Day: 14.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,367,403 km

• M1: 157,975 km (0.093 R)
• M2: 584,628 km (0.061 R)
• M3: 1,239,269 km (0.098 R)
• M4: 1,650,663 km (0.103 R)
• M5: 2,207,017 km (0.088 R)
• M6: 2,808,401 km (0.067 R)
• M7: 3,571,948 km (0.081 R)
• M8: 4,114,241 km (0.1 R)
• M9: 4,710,987 km (0.111 R)
• M10: 5,537,664 km (0.036 R)
• M11: 6,078,760 km (0.063 R)
• M12: 7,029,604 km (0.117 R)
• M13: 11,433,616 km (0.116 R)
• M14: 12,616,636 km (0.103 R)
• M15: 14,160,934 km (0.118 R)
• M16: 15,126,290 km (0.08 R)
• M17: 16,761,544 km (0.1 R)
• M18: 18,398,893 km (0.12 R)
• M19: 19,783,720 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.5

Radius: 14

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.89 AU - 3.97 AU

Year: 5030 Days

Day: 7.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,367,403 km

• M1: 174,132 km (0.082 R)
• M2: 636,090 km (0.083 R)
• M3: 1,180,327 km (0.098 R)
• M4: 1,791,584 km (0.111 R)
• M5: 2,559,171 km (0.032 R)
• M6: 3,127,343 km (0.09 R)
• M7: 5,271,679 km (0.075 R)
• M8: 6,073,524 km (0.115 R)
• M9: 6,520,672 km (0.084 R)
• M10: 7,024,069 km (0.03 R)
• M11: 11,263,822 km (0.107 R)
• M12: 13,864,581 km (0.073 R)
• M13: 14,418,093 km (0.078 R)
• M14: 15,569,249 km (0.044 R)
• M15: 16,228,227 km (0.107 R)
• M16: 17,346,322 km (0.102 R)
• M17: 18,120,042 km (0.075 R)
• M18: 20,154,872 km (0.083 R)
• M19: 24,755,306 km (0.079 R)
• M20: 27,256,134 km (0.105 R)
• M21: 30,567,034 km (0.078 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 222 - 10,821 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit