🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.4 AU - 0.64 AU

Year: 131 Days

Day: 24.9 Hours

Environment

Temp: 271 °C

Axial Tilt: 49.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.64 AU - 0.7 AU

Year: 191 Days

Day: 34.2 Hours

Environment

Temp: 180 °C

Axial Tilt: 1.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.73

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.94 AU - 1.38 AU

Year: 435 Days

Day: 13.1 Hours

Environment

Temp: 36 °C

Axial Tilt: 6.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 2.58 AU - 3.28 AU

Year: 1747 Days

Day: 45.3 Hours

Environment

Temp: -84 °C

Axial Tilt: 32.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.17 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446.8

Radius: 9.9

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 6.8 AU - 8 AU

Year: 7010 Days

Day: 14.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 55,778,749 km

• M1: 123,119 km (0.096 R)
• M2: 541,843 km (0.093 R)
• M3: 962,064 km (0.086 R)
• M4: 1,453,493 km (0.069 R)
• M5: 2,359,158 km (0.105 R)
• M6: 3,451,672 km (0.064 R)
• M7: 4,015,356 km (0.049 R)
• M8: 4,961,114 km (0.03 R)
• M9: 5,471,991 km (0.114 R)
• M10: 6,303,755 km (0.101 R)
• M11: 7,253,103 km (0.033 R)
• M12: 7,651,183 km (0.075 R)
• M13: 10,129,571 km (0.109 R)
• M14: 11,574,836 km (0.115 R)
• M15: 12,628,903 km (0.068 R)
• M16: 13,582,439 km (0.091 R)
• M17: 15,218,442 km (0.06 R)
• M18: 16,236,455 km (0.118 R)
• M19: 17,620,385 km (0.112 R)
• M20: 21,422,116 km (0.108 R)
• M21: 23,240,328 km (0.098 R)
• M22: 23,947,926 km (0.11 R)
• M23: 24,508,170 km (0.068 R)
• M24: 25,738,164 km (0.1 R)
• M25: 27,267,802 km (0.104 R)
• M26: 28,409,683 km (0.097 R)
• M27: 29,400,619 km (0.082 R)
• M28: 30,601,142 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.9

Radius: 14.8

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 7.69 AU - 7.97 AU

Year: 7630 Days

Day: 6.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,778,749 km

• M1: 184,005 km (0.064 R)
• M2: 816,954 km (0.114 R)
• M3: 1,452,147 km (0.104 R)
• M4: 2,540,621 km (0.078 R)
• M5: 3,234,755 km (0.077 R)
• M6: 4,214,172 km (0.107 R)
• M7: 4,876,442 km (0.106 R)
• M8: 5,579,253 km (0.104 R)
• M9: 6,348,934 km (0.12 R)
• M10: 7,705,936 km (0.092 R)
• M11: 10,458,537 km (0.065 R)
• M12: 11,866,103 km (0.111 R)
• M13: 13,396,489 km (0.115 R)
• M14: 17,577,750 km (0.075 R)
• M15: 18,139,490 km (0.085 R)
• M16: 19,037,077 km (0.096 R)
• M17: 21,694,234 km (0.071 R)
• M18: 24,205,085 km (0.11 R)
• M19: 24,745,133 km (0.114 R)
• M20: 28,241,086 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.3

Radius: 9.9

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 7.99 AU - 8.39 AU

Year: 8162 Days

Day: 14 Hours

Environment

Temp: -162 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 55,778,749 km

• M1: 124,765 km (0.099 R)
• M2: 482,304 km (0.065 R)
• M3: 1,127,220 km (0.096 R)
• M4: 1,531,733 km (0.09 R)
• M5: 2,112,472 km (0.071 R)
• M6: 2,976,100 km (0.076 R)
• M7: 4,374,092 km (0.107 R)
• M8: 4,761,999 km (0.109 R)
• M9: 5,607,227 km (0.084 R)
• M10: 6,099,554 km (0.051 R)
• M11: 6,408,623 km (0.107 R)
• M12: 6,800,570 km (0.118 R)
• M13: 7,515,498 km (0.106 R)
• M14: 8,962,558 km (0.068 R)
• M15: 12,182,652 km (0.093 R)
• M16: 14,409,865 km (0.077 R)
• M17: 15,651,528 km (0.106 R)
• M18: 17,166,056 km (0.097 R)
• M19: 17,576,703 km (0.117 R)
• M20: 18,064,092 km (0.106 R)
• M21: 19,506,366 km (0.078 R)
• M22: 23,529,651 km (0.095 R)
• M23: 27,048,342 km (0.056 R)
• M24: 27,418,447 km (0.117 R)
• M25: 31,409,270 km (0.075 R)
• M26: 35,439,287 km (0.11 R)
• M27: 38,737,471 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.4

Radius: 14.8

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 8.93 AU - 11.03 AU

Year: 10980 Days

Day: 12.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 55,778,749 km

• M1: 184,604 km (0.055 R)
• M2: 842,984 km (0.104 R)
• M3: 1,340,247 km (0.107 R)
• M4: 2,022,862 km (0.092 R)
• M5: 3,307,459 km (0.065 R)
• M6: 4,215,369 km (0.107 R)
• M7: 5,773,730 km (0.107 R)
• M8: 6,605,344 km (0.098 R)
• M9: 7,259,237 km (0.112 R)
• M10: 9,484,206 km (0.053 R)
• M11: 10,371,770 km (0.075 R)
• M12: 13,052,863 km (0.11 R)
• M13: 13,822,245 km (0.032 R)
• M14: 17,819,500 km (0.07 R)
• M15: 20,934,726 km (0.073 R)
• M16: 22,803,802 km (0.112 R)
• M17: 23,920,700 km (0.105 R)
• M18: 25,269,324 km (0.093 R)
• M19: 26,263,402 km (0.095 R)
• M20: 29,293,806 km (0.066 R)
• M21: 30,169,253 km (0.119 R)
• M22: 31,972,356 km (0.072 R)
• M23: 35,668,920 km (0.102 R)
• M24: 37,555,947 km (0.063 R)
• M25: 43,193,244 km (0.081 R)
• M26: 52,349,381 km (0.085 R)
• M27: 52,830,338 km (0.028 R)

Kuiper Belt

Range: 31.5 - 60.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 322 - 20,276 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit