🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.64 AU - 0.66 AU

Year: 200 Days

Day: 12.2 Hours

Environment

Temp: 176 °C

Axial Tilt: 38.2 °

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: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.51 AU - 0.83 AU

Year: 209 Days

Day: 34.5 Hours

Environment

Temp: 150 °C

Axial Tilt: 25.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 63,351,752 km

• M1: 68,217 km (0.102 R)

Planet 3 - Terrestrial

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 3.41 AU - 4.77 AU

Year: 3150 Days

Day: 35.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 63,351,752 km

• M1: 246,986 km (0.05 R)
• M2: 1,758,523 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.3

Radius: 10.2

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 4.36 AU - 4.38 AU

Year: 3479 Days

Day: 11.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,351,752 km

• M1: 126,859 km (0.083 R)
• M2: 528,978 km (0.071 R)
• M3: 853,007 km (0.085 R)
• M4: 1,292,077 km (0.107 R)
• M5: 1,775,727 km (0.065 R)
• M6: 2,230,205 km (0.115 R)
• M7: 2,611,081 km (0.076 R)
• M8: 5,726,307 km (0.1 R)
• M9: 6,750,903 km (0.106 R)
• M10: 7,198,799 km (0.116 R)
• M11: 8,785,285 km (0.106 R)
• M12: 9,351,961 km (0.072 R)
• M13: 9,976,233 km (0.104 R)
• M14: 10,315,820 km (0.035 R)
• M15: 11,454,859 km (0.111 R)
• M16: 12,208,084 km (0.095 R)
• M17: 14,108,126 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.1

Radius: 10.4

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 4.82 AU - 6.54 AU

Year: 5155 Days

Day: 13.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 63,351,752 km

• M1: 130,300 km (0.055 R)
• M2: 539,300 km (0.103 R)
• M3: 1,050,626 km (0.04 R)
• M4: 1,522,607 km (0.1 R)
• M5: 1,987,408 km (0.114 R)
• M6: 3,340,072 km (0.107 R)
• M7: 3,823,572 km (0.079 R)
• M8: 4,625,716 km (0.059 R)
• M9: 5,463,913 km (0.088 R)
• M10: 5,881,590 km (0.111 R)
• M11: 6,753,596 km (0.086 R)
• M12: 7,740,044 km (0.094 R)
• M13: 8,459,909 km (0.084 R)
• M14: 11,792,800 km (0.099 R)
• M15: 12,450,432 km (0.041 R)
• M16: 14,019,714 km (0.088 R)
• M17: 16,870,451 km (0.069 R)
• M18: 17,652,549 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.1

Radius: 12.7

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 5.15 AU - 6.85 AU

Year: 5597 Days

Day: 9.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 63,351,752 km

• M1: 167,849 km (0.105 R)
• M2: 600,037 km (0.082 R)
• M3: 1,343,538 km (0.083 R)
• M4: 1,759,271 km (0.062 R)
• M5: 2,441,587 km (0.118 R)
• M6: 2,893,073 km (0.093 R)
• M7: 5,051,621 km (0.108 R)
• M8: 6,242,869 km (0.074 R)
• M9: 7,305,911 km (0.106 R)
• M10: 8,486,089 km (0.063 R)
• M11: 9,034,365 km (0.102 R)
• M12: 9,642,630 km (0.05 R)
• M13: 10,050,583 km (0.067 R)
• M14: 11,263,074 km (0.093 R)
• M15: 11,799,682 km (0.103 R)
• M16: 12,439,961 km (0.055 R)
• M17: 13,604,730 km (0.077 R)
• M18: 14,261,315 km (0.034 R)
• M19: 14,791,938 km (0.108 R)
• M20: 15,335,727 km (0.062 R)
• M21: 17,426,357 km (0.057 R)
• M22: 18,313,622 km (0.104 R)
• M23: 19,879,014 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.1

Radius: 15

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 8.08 AU - 8.52 AU

Year: 9106 Days

Day: 5.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,351,752 km

• M1: 186,997 km (0.105 R)
• M2: 1,177,634 km (0.095 R)
• M3: 1,853,817 km (0.094 R)
• M4: 4,638,880 km (0.074 R)
• M5: 5,117,743 km (0.076 R)
• M6: 5,662,728 km (0.111 R)
• M7: 7,217,499 km (0.099 R)
• M8: 7,822,173 km (0.11 R)
• M9: 8,636,584 km (0.042 R)
• M10: 10,485,464 km (0.064 R)
• M11: 12,758,604 km (0.117 R)
• M12: 14,890,523 km (0.098 R)
• M13: 17,250,579 km (0.047 R)
• M14: 19,387,435 km (0.066 R)
• M15: 20,085,160 km (0.079 R)
• M16: 21,695,581 km (0.099 R)
• M17: 29,612,151 km (0.075 R)
• M18: 30,124,224 km (0.077 R)
• M19: 34,548,731 km (0.103 R)
• M20: 37,808,169 km (0.113 R)
• M21: 40,008,604 km (0.105 R)
• M22: 42,164,160 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 682.7

Radius: 3.6

Gravity: 52.68 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 11.67 AU - 11.71 AU

Year: 15220 Days

Day: 16 Hours

Environment

Temp: -192 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 63,351,752 km

• M1: 165,455 km (0.076 R)
• M2: 1,222,963 km (0.055 R)
• M3: 2,712,808 km (0.116 R)
• M4: 2,829,494 km (0.067 R)
• M5: 5,043,094 km (0.068 R)
• M6: 5,968,805 km (0.104 R)
• M7: 6,328,140 km (0.048 R)
• M8: 6,958,844 km (0.108 R)
• M9: 7,538,536 km (0.054 R)
• M10: 12,205,989 km (0.087 R)
• M11: 13,447,353 km (0.072 R)
• M12: 15,574,934 km (0.065 R)
• M13: 17,998,269 km (0.099 R)
• M14: 18,830,482 km (0.1 R)
• M15: 22,227,700 km (0.087 R)
• M16: 25,802,491 km (0.11 R)
• M17: 26,859,400 km (0.114 R)
• M18: 27,182,083 km (0.081 R)
• M19: 35,206,213 km (0.083 R)
• M20: 40,452,162 km (0.111 R)
• M21: 41,445,791 km (0.118 R)
• M22: 46,503,844 km (0.053 R)
• M23: 57,644,847 km (0.09 R)
• M24: 58,002,236 km (0.102 R)
• M25: 59,264,692 km (0.081 R)
• M26: 59,628,814 km (0.045 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 188 - 19,407 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit