🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.4

Radius: 8.9

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.59 AU - 0.91 AU

Year: 441 Days

Day: 10.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 29,885,979 km

• M1: 114,143 km (0.113 R)
• M2: 436,227 km (0.054 R)
• M3: 861,085 km (0.06 R)
• M4: 1,201,271 km (0.113 R)
• M5: 2,064,600 km (0.093 R)
• M6: 2,436,351 km (0.105 R)
• M7: 2,862,555 km (0.057 R)
• M8: 3,624,158 km (0.104 R)
• M9: 4,339,086 km (0.088 R)
• M10: 4,751,677 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.3

Radius: 11.9

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.69 AU - 0.93 AU

Year: 494 Days

Day: 7.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 29,885,979 km

• M1: 147,952 km (0.081 R)
• M2: 678,127 km (0.098 R)
• M3: 1,172,548 km (0.104 R)
• M4: 1,664,276 km (0.111 R)
• M5: 3,194,812 km (0.109 R)
• M6: 4,278,798 km (0.102 R)
• M7: 4,729,088 km (0.12 R)
• M8: 5,102,783 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.3

Radius: 8.6

Gravity: 11.32 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.32 AU - 1.9 AU

Year: 1386 Days

Day: 5.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,885,979 km

• M1: 106,962 km (0.108 R)
• M2: 493,224 km (0.086 R)
• M3: 914,641 km (0.111 R)
• M4: 1,258,866 km (0.064 R)
• M5: 1,660,387 km (0.08 R)
• M6: 2,931,969 km (0.111 R)
• M7: 3,352,039 km (0.047 R)
• M8: 4,183,804 km (0.115 R)
• M9: 5,125,821 km (0.098 R)
• M10: 5,403,774 km (0.114 R)
• M11: 6,131,418 km (0.114 R)
• M12: 7,864,360 km (0.085 R)
• M13: 8,206,191 km (0.075 R)
• M14: 8,587,516 km (0.094 R)
• M15: 9,011,477 km (0.055 R)
• M16: 11,308,253 km (0.104 R)
• M17: 11,817,933 km (0.096 R)
• M18: 12,342,872 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.6

Radius: 13.7

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.31 AU - 1.91 AU

Year: 1386 Days

Day: 5.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 29,885,979 km

• M1: 170,392 km (0.081 R)
• M2: 701,315 km (0.101 R)
• M3: 1,482,664 km (0.117 R)
• M4: 2,185,625 km (0.103 R)
• M5: 2,708,619 km (0.119 R)
• M6: 5,531,232 km (0.083 R)
• M7: 6,272,489 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.3

Radius: 14.1

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.13 AU - 3.07 AU

Year: 2843 Days

Day: 14.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 29,885,979 km

• M1: 175,329 km (0.076 R)
• M2: 781,649 km (0.104 R)
• M3: 1,310,029 km (0.066 R)
• M4: 1,793,828 km (0.105 R)
• M5: 2,782,969 km (0.063 R)
• M6: 3,448,081 km (0.105 R)
• M7: 5,771,187 km (0.117 R)
• M8: 7,011,802 km (0.071 R)
• M9: 7,679,008 km (0.091 R)
• M10: 9,860,594 km (0.042 R)
• M11: 11,628,691 km (0.11 R)
• M12: 12,113,239 km (0.074 R)
• M13: 14,946,473 km (0.097 R)
• M14: 16,216,409 km (0.098 R)
• M15: 18,431,954 km (0.093 R)
• M16: 20,016,943 km (0.055 R)
• M17: 20,971,677 km (0.105 R)
• M18: 21,690,943 km (0.06 R)
• M19: 22,157,240 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628.9

Radius: 12

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.58 AU - 2.94 AU

Year: 3110 Days

Day: 12.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 29,885,979 km

• M1: 149,299 km (0.106 R)
• M2: 775,815 km (0.029 R)
• M3: 1,399,189 km (0.055 R)
• M4: 2,033,185 km (0.104 R)
• M5: 2,497,686 km (0.091 R)
• M6: 2,933,165 km (0.101 R)
• M7: 3,456,010 km (0.064 R)
• M8: 4,378,879 km (0.116 R)
• M9: 4,922,069 km (0.097 R)
• M10: 5,954,145 km (0.116 R)
• M11: 6,450,660 km (0.088 R)
• M12: 6,944,782 km (0.075 R)
• M13: 7,717,455 km (0.085 R)
• M14: 8,174,776 km (0.119 R)
• M15: 8,581,083 km (0.058 R)
• M16: 9,957,683 km (0.088 R)
• M17: 11,560,475 km (0.039 R)
• M18: 12,203,745 km (0.031 R)
• M19: 13,750,587 km (0.092 R)
• M20: 15,271,399 km (0.054 R)
• M21: 21,193,979 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.8

Radius: 13.8

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 3.59 AU - 4.03 AU

Year: 5044 Days

Day: 7.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,885,979 km

• M1: 171,589 km (0.052 R)
• M2: 689,347 km (0.118 R)
• M3: 1,520,214 km (0.114 R)
• M4: 4,268,326 km (0.1 R)
• M5: 4,906,661 km (0.052 R)
• M6: 5,367,123 km (0.065 R)
• M7: 6,615,966 km (0.105 R)
• M8: 7,147,487 km (0.095 R)
• M9: 7,843,566 km (0.074 R)
• M10: 9,103,778 km (0.1 R)
• M11: 9,723,263 km (0.109 R)
• M12: 10,789,597 km (0.11 R)
• M13: 13,846,629 km (0.103 R)
• M14: 14,304,249 km (0.09 R)
• M15: 15,737,696 km (0.116 R)
• M16: 17,617,393 km (0.118 R)
• M17: 20,156,069 km (0.091 R)
• M18: 22,859,303 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.6

Radius: 11.4

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 4.45 AU - 5.61 AU

Year: 7651 Days

Day: 12.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 29,885,979 km

• M1: 145,260 km (0.117 R)
• M2: 1,342,042 km (0.083 R)
• M3: 1,799,812 km (0.116 R)
• M4: 2,283,163 km (0.09 R)
• M5: 3,093,983 km (0.033 R)
• M6: 6,761,225 km (0.062 R)
• M7: 9,330,270 km (0.098 R)
• M8: 9,744,057 km (0.1 R)
• M9: 10,170,112 km (0.112 R)
• M10: 10,787,502 km (0.097 R)
• M11: 11,523,674 km (0.103 R)
• M12: 13,562,842 km (0.111 R)
• M13: 17,960,870 km (0.1 R)
• M14: 20,689,236 km (0.083 R)
• M15: 23,682,989 km (0.108 R)
• M16: 26,129,961 km (0.085 R)
• M17: 27,541,118 km (0.113 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 355 - 11,667 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit