🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.01

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.48 AU - 0.58 AU

Year: 249 Days

Day: 23 Hours

Environment

Temp: -119 °C

Axial Tilt: 5.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 42,394,212 km

• M1: 36,203 km (0.09 R)
• M2: 333,304 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603

Radius: 12.2

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.78 AU - 1.08 AU

Year: 579 Days

Day: 6.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,394,212 km

• M1: 151,692 km (0.079 R)
• M2: 642,822 km (0.118 R)
• M3: 1,043,744 km (0.108 R)
• M4: 1,648,120 km (0.117 R)
• M5: 2,041,263 km (0.111 R)
• M6: 2,589,090 km (0.092 R)
• M7: 3,126,895 km (0.071 R)
• M8: 3,805,321 km (0.105 R)
• M9: 4,194,425 km (0.081 R)
• M10: 4,781,148 km (0.119 R)
• M11: 5,218,871 km (0.04 R)
• M12: 5,683,522 km (0.107 R)
• M13: 6,326,793 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.2

Radius: 10.2

Gravity: 6.01 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.09 AU - 1.63 AU

Year: 1024 Days

Day: 12.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,394,212 km

• M1: 132,993 km (0.092 R)
• M2: 774,917 km (0.077 R)
• M3: 1,375,552 km (0.079 R)
• M4: 1,997,880 km (0.096 R)
• M5: 3,176,711 km (0.063 R)
• M6: 3,544,572 km (0.059 R)
• M7: 3,925,149 km (0.098 R)
• M8: 4,805,084 km (0.112 R)
• M9: 6,320,809 km (0.099 R)
• M10: 6,813,734 km (0.092 R)
• M11: 7,332,091 km (0.073 R)
• M12: 9,673,298 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.3

Radius: 8.2

Gravity: 8.05 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.13 AU - 1.73 AU

Year: 1104 Days

Day: 11 Hours

Environment

Temp: -186 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,394,212 km

• M1: 102,026 km (0.091 R)
• M2: 374,593 km (0.078 R)
• M3: 1,022,053 km (0.042 R)
• M4: 1,379,292 km (0.061 R)
• M5: 1,791,135 km (0.118 R)
• M6: 2,371,425 km (0.063 R)
• M7: 2,773,844 km (0.091 R)
• M8: 3,071,394 km (0.082 R)
• M9: 3,476,954 km (0.093 R)
• M10: 3,917,968 km (0.083 R)
• M11: 4,226,888 km (0.111 R)
• M12: 4,675,831 km (0.092 R)
• M13: 4,949,146 km (0.047 R)
• M14: 5,213,785 km (0.09 R)
• M15: 5,938,287 km (0.066 R)
• M16: 7,462,839 km (0.103 R)
• M17: 7,862,415 km (0.105 R)
• M18: 9,692,895 km (0.075 R)
• M19: 10,108,478 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943.4

Radius: 10.1

Gravity: 9.25 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 2.4 AU - 3.22 AU

Year: 3041 Days

Day: 11.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 42,394,212 km

• M1: 125,662 km (0.028 R)
• M2: 754,123 km (0.105 R)
• M3: 1,581,997 km (0.063 R)
• M4: 1,993,541 km (0.105 R)
• M5: 2,400,597 km (0.071 R)
• M6: 3,017,987 km (0.12 R)
• M7: 3,617,277 km (0.072 R)
• M8: 4,009,522 km (0.112 R)
• M9: 4,978,468 km (0.077 R)
• M10: 6,011,441 km (0.114 R)
• M11: 6,837,071 km (0.073 R)
• M12: 7,736,454 km (0.109 R)
• M13: 8,676,677 km (0.102 R)
• M14: 10,006,602 km (0.031 R)
• M15: 10,328,835 km (0.044 R)
• M16: 10,699,539 km (0.092 R)
• M17: 12,410,041 km (0.077 R)
• M18: 13,306,282 km (0.07 R)
• M19: 13,795,018 km (0.054 R)
• M20: 15,333,333 km (0.101 R)
• M21: 15,708,076 km (0.117 R)
• M22: 16,309,459 km (0.063 R)
• M23: 18,206,061 km (0.119 R)
• M24: 18,992,048 km (0.115 R)
• M25: 22,159,035 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.9

Radius: 12.7

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.61 AU - 3.03 AU

Year: 3058 Days

Day: 5 Hours

Environment

Temp: -198 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,394,212 km

• M1: 157,975 km (0.091 R)
• M2: 791,971 km (0.062 R)
• M3: 1,828,984 km (0.109 R)
• M4: 2,348,537 km (0.08 R)
• M5: 3,105,353 km (0.034 R)
• M6: 3,551,453 km (0.117 R)
• M7: 4,810,320 km (0.112 R)
• M8: 5,675,743 km (0.115 R)
• M9: 6,946,727 km (0.095 R)
• M10: 8,052,704 km (0.118 R)
• M11: 9,085,827 km (0.091 R)
• M12: 10,861,404 km (0.085 R)
• M13: 11,285,663 km (0.088 R)
• M14: 12,394,632 km (0.115 R)
• M15: 13,046,729 km (0.105 R)
• M16: 14,067,585 km (0.079 R)
• M17: 14,777,278 km (0.103 R)
• M18: 23,666,533 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.8

Radius: 11.4

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 3.04 AU - 4.96 AU

Year: 5165 Days

Day: 10.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,394,212 km

• M1: 142,268 km (0.118 R)
• M2: 707,748 km (0.11 R)
• M3: 1,935,946 km (0.093 R)
• M4: 3,500,141 km (0.115 R)
• M5: 5,619,644 km (0.067 R)
• M6: 8,768,380 km (0.116 R)
• M7: 9,170,349 km (0.118 R)
• M8: 11,070,990 km (0.053 R)
• M9: 15,214,851 km (0.076 R)
• M10: 17,230,683 km (0.085 R)
• M11: 20,040,280 km (0.074 R)
• M12: 21,323,680 km (0.069 R)
• M13: 21,918,781 km (0.112 R)
• M14: 23,350,432 km (0.077 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.6

Radius: 13.3

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 4.74 AU - 5.76 AU

Year: 7767 Days

Day: 13.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 42,394,212 km

• M1: 165,904 km (0.106 R)
• M2: 665,860 km (0.077 R)
• M3: 1,153,250 km (0.109 R)
• M4: 1,641,986 km (0.075 R)
• M5: 2,168,720 km (0.101 R)
• M6: 2,632,025 km (0.086 R)
• M7: 3,075,882 km (0.105 R)
• M8: 3,886,702 km (0.1 R)
• M9: 4,691,090 km (0.078 R)
• M10: 5,444,016 km (0.084 R)
• M11: 6,103,144 km (0.119 R)
• M12: 7,581,470 km (0.103 R)
• M13: 9,656,543 km (0.063 R)
• M14: 10,624,291 km (0.118 R)
• M15: 12,809,467 km (0.065 R)
• M16: 15,215,749 km (0.102 R)
• M17: 16,525,778 km (0.078 R)
• M18: 19,594,927 km (0.101 R)
• M19: 20,985,888 km (0.091 R)
• M20: 25,644,217 km (0.109 R)
• M21: 26,099,144 km (0.087 R)
• M22: 27,496,537 km (0.059 R)
• M23: 28,165,390 km (0.1 R)
• M24: 29,835,201 km (0.093 R)
• M25: 32,834,489 km (0.057 R)
• M26: 33,587,564 km (0.088 R)
• M27: 34,352,009 km (0.093 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 243 - 19,479 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit