🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.51 AU - 0.73 AU

Year: 310 Days

Day: 42.4 Hours

Environment

Temp: -130 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.9

Radius: 12.3

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.69 AU - 0.73 AU

Year: 380 Days

Day: 6.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 53,052,122 km

• M1: 153,487 km (0.09 R)
• M2: 542,741 km (0.094 R)
• M3: 963,111 km (0.106 R)
• M4: 1,587,084 km (0.063 R)
• M5: 2,075,670 km (0.08 R)
• M6: 2,486,317 km (0.05 R)
• M7: 2,896,215 km (0.069 R)
• M8: 3,290,704 km (0.079 R)
• M9: 3,743,388 km (0.037 R)

Asteroid Belt

Center: 1.1 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.5

Radius: 12.7

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.42 AU - 1.54 AU

Year: 1145 Days

Day: 9.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 53,052,122 km

• M1: 157,975 km (0.112 R)
• M2: 594,801 km (0.104 R)
• M3: 1,090,120 km (0.073 R)
• M4: 1,542,803 km (0.114 R)
• M5: 2,524,913 km (0.067 R)
• M6: 3,522,282 km (0.101 R)
• M7: 4,277,602 km (0.101 R)
• M8: 5,153,647 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790

Radius: 12.3

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 2.07 AU - 2.25 AU

Year: 2018 Days

Day: 8.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,052,122 km

• M1: 153,039 km (0.104 R)
• M2: 611,257 km (0.101 R)
• M3: 1,035,516 km (0.047 R)
• M4: 1,564,046 km (0.114 R)
• M5: 1,978,731 km (0.086 R)
• M6: 2,912,820 km (0.099 R)
• M7: 3,745,931 km (0.095 R)
• M8: 4,140,719 km (0.109 R)
• M9: 5,194,487 km (0.104 R)
• M10: 5,858,552 km (0.032 R)
• M11: 6,314,676 km (0.104 R)
• M12: 7,015,691 km (0.102 R)
• M13: 7,443,392 km (0.086 R)
• M14: 7,888,445 km (0.083 R)
• M15: 8,319,736 km (0.08 R)
• M16: 8,799,347 km (0.028 R)
• M17: 9,570,823 km (0.106 R)
• M18: 11,364,202 km (0.098 R)
• M19: 11,756,298 km (0.09 R)
• M20: 13,942,372 km (0.059 R)
• M21: 14,851,329 km (0.104 R)
• M22: 16,486,583 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.4

Radius: 12.6

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.72 AU - 2.78 AU

Year: 2146 Days

Day: 12.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 53,052,122 km

• M1: 156,779 km (0.058 R)
• M2: 594,652 km (0.072 R)
• M3: 1,027,737 km (0.106 R)
• M4: 1,450,351 km (0.042 R)
• M5: 1,923,829 km (0.05 R)
• M6: 2,420,942 km (0.118 R)
• M7: 2,972,958 km (0.083 R)
• M8: 3,660,660 km (0.116 R)
• M9: 4,677,327 km (0.086 R)
• M10: 5,218,273 km (0.08 R)
• M11: 5,657,193 km (0.04 R)
• M12: 6,662,640 km (0.116 R)
• M13: 8,022,335 km (0.062 R)
• M14: 8,929,048 km (0.069 R)
• M15: 9,491,686 km (0.119 R)
• M16: 13,040,746 km (0.119 R)
• M17: 13,592,911 km (0.078 R)
• M18: 14,383,087 km (0.031 R)
• M19: 15,157,256 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.5

Radius: 8

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 3.59 AU - 4.55 AU

Year: 5221 Days

Day: 12.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,052,122 km

• M1: 101,577 km (0.117 R)
• M2: 359,334 km (0.093 R)
• M3: 736,919 km (0.104 R)
• M4: 1,359,845 km (0.054 R)
• M5: 2,525,212 km (0.099 R)
• M6: 3,291,752 km (0.067 R)
• M7: 4,049,315 km (0.119 R)
• M8: 5,198,975 km (0.085 R)
• M9: 5,737,228 km (0.044 R)
• M10: 8,520,347 km (0.102 R)
• M11: 9,306,932 km (0.098 R)
• M12: 9,938,086 km (0.073 R)
• M13: 11,417,908 km (0.076 R)
• M14: 13,529,183 km (0.114 R)
• M15: 14,546,299 km (0.08 R)
• M16: 14,914,010 km (0.1 R)
• M17: 15,287,855 km (0.097 R)
• M18: 15,832,840 km (0.066 R)
• M19: 21,201,160 km (0.094 R)
• M20: 21,878,838 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.9

Radius: 11.4

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 4.32 AU - 4.74 AU

Year: 6130 Days

Day: 7.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 53,052,122 km

• M1: 142,417 km (0.079 R)
• M2: 608,714 km (0.029 R)
• M3: 1,022,651 km (0.082 R)
• M4: 1,921,585 km (0.048 R)
• M5: 2,600,609 km (0.081 R)
• M6: 3,245,825 km (0.087 R)
• M7: 4,236,163 km (0.118 R)
• M8: 5,047,582 km (0.117 R)
• M9: 6,406,379 km (0.091 R)
• M10: 7,438,904 km (0.074 R)
• M11: 8,699,266 km (0.113 R)
• M12: 9,745,254 km (0.107 R)
• M13: 10,321,206 km (0.094 R)
• M14: 12,960,711 km (0.074 R)
• M15: 14,493,191 km (0.057 R)
• M16: 16,021,184 km (0.117 R)
• M17: 16,824,225 km (0.025 R)
• M18: 18,712,300 km (0.088 R)
• M19: 19,672,718 km (0.094 R)
• M20: 20,521,836 km (0.065 R)
• M21: 21,840,990 km (0.118 R)
• M22: 22,368,921 km (0.105 R)
• M23: 28,216,103 km (0.105 R)
• M24: 28,842,619 km (0.089 R)
• M25: 30,777,967 km (0.097 R)
• M26: 31,441,882 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 747

Radius: 3.6

Gravity: 57.64 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 5.87 AU - 7.63 AU

Year: 11150 Days

Day: 16.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 53,052,122 km

• M1: 44,879 km (0.099 R)
• M2: 169,494 km (0.093 R)
• M3: 319,242 km (0.109 R)
• M4: 475,272 km (0.054 R)
• M5: 786,735 km (0.107 R)
• M6: 1,171,351 km (0.107 R)
• M7: 1,337,555 km (0.084 R)
• M8: 1,670,260 km (0.101 R)
• M9: 2,664,936 km (0.071 R)
• M10: 3,540,084 km (0.076 R)
• M11: 3,751,765 km (0.045 R)
• M12: 3,888,497 km (0.097 R)
• M13: 4,288,672 km (0.112 R)
• M14: 4,560,192 km (0.118 R)
• M15: 5,654,201 km (0.065 R)
• M16: 5,834,018 km (0.069 R)
• M17: 6,670,719 km (0.084 R)
• M18: 8,437,918 km (0.107 R)
• M19: 9,254,274 km (0.11 R)
• M20: 10,440,735 km (0.12 R)
• M21: 12,017,347 km (0.102 R)
• M22: 12,924,059 km (0.106 R)
• M23: 15,987,375 km (0.091 R)
• M24: 19,339,115 km (0.104 R)
• M25: 21,611,806 km (0.092 R)
• M26: 22,051,325 km (0.101 R)
• M27: 23,962,587 km (0.079 R)
• M28: 25,393,491 km (0.097 R)
• M29: 25,686,403 km (0.107 R)
• M30: 27,799,772 km (0.082 R)
• M31: 35,799,668 km (0.094 R)
• M32: 43,234,084 km (0.032 R)
• M33: 44,920,351 km (0.105 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 293 - 17,643 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit