🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.2

Radius: 10

Gravity: 9.83 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.58 AU - 0.6 AU

Year: 302 Days

Day: 10.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,302,912 km

• M1: 124,465 km (0.105 R)
• M2: 493,075 km (0.091 R)
• M3: 878,289 km (0.071 R)
• M4: 1,309,879 km (0.106 R)
• M5: 1,980,825 km (0.063 R)
• M6: 2,746,617 km (0.111 R)
• M7: 3,485,331 km (0.077 R)
• M8: 4,501,550 km (0.115 R)
• M9: 4,929,998 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536

Radius: 14.3

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.55 AU - 0.79 AU

Year: 366 Days

Day: 6.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 34,302,912 km

• M1: 182,210 km (0.111 R)
• M2: 916,137 km (0.118 R)
• M3: 1,441,824 km (0.105 R)
• M4: 2,116,511 km (0.112 R)
• M5: 2,587,445 km (0.101 R)
• M6: 3,505,527 km (0.096 R)
• M7: 4,300,191 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209.4

Radius: 10.7

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.96 AU - 1.38 AU

Year: 844 Days

Day: 13.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 34,302,912 km

• M1: 154,385 km (0.102 R)
• M2: 717,172 km (0.111 R)
• M3: 1,413,700 km (0.06 R)
• M4: 1,779,616 km (0.074 R)
• M5: 2,112,920 km (0.104 R)
• M6: 2,478,687 km (0.045 R)
• M7: 2,930,173 km (0.103 R)
• M8: 3,352,039 km (0.065 R)
• M9: 4,081,479 km (0.105 R)
• M10: 4,491,526 km (0.108 R)
• M11: 5,118,342 km (0.086 R)
• M12: 6,212,500 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.1

Radius: 12.4

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.43 AU - 1.85 AU

Year: 1401 Days

Day: 5.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,302,912 km

• M1: 154,235 km (0.101 R)
• M2: 681,717 km (0.098 R)
• M3: 1,197,232 km (0.099 R)
• M4: 1,621,791 km (0.093 R)
• M5: 2,205,821 km (0.119 R)
• M6: 2,843,108 km (0.112 R)
• M7: 3,502,535 km (0.119 R)
• M8: 4,564,381 km (0.048 R)
• M9: 5,761,313 km (0.103 R)
• M10: 7,078,672 km (0.106 R)
• M11: 8,322,279 km (0.053 R)
• M12: 8,889,105 km (0.08 R)
• M13: 9,804,046 km (0.118 R)
• M14: 11,784,123 km (0.057 R)
• M15: 13,244,199 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.2

Radius: 14.9

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.72 AU - 2.74 AU

Year: 2221 Days

Day: 13.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,302,912 km

• M1: 185,352 km (0.088 R)
• M2: 659,876 km (0.092 R)
• M3: 1,786,947 km (0.081 R)
• M4: 2,483,175 km (0.105 R)
• M5: 2,991,060 km (0.106 R)
• M6: 6,205,170 km (0.115 R)
• M7: 6,695,253 km (0.116 R)
• M8: 7,722,840 km (0.109 R)
• M9: 8,486,687 km (0.097 R)
• M10: 9,654,598 km (0.102 R)
• M11: 11,604,307 km (0.058 R)
• M12: 12,737,062 km (0.056 R)
• M13: 13,308,077 km (0.103 R)
• M14: 13,804,742 km (0.032 R)
• M15: 15,124,794 km (0.104 R)
• M16: 15,966,581 km (0.035 R)
• M17: 17,852,112 km (0.118 R)
• M18: 18,568,237 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.2

Radius: 11.9

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.06 AU - 2.78 AU

Year: 2510 Days

Day: 5.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,302,912 km

• M1: 148,102 km (0.117 R)
• M2: 523,742 km (0.073 R)
• M3: 983,905 km (0.074 R)
• M4: 1,728,005 km (0.049 R)
• M5: 2,136,557 km (0.079 R)
• M6: 2,927,481 km (0.079 R)
• M7: 3,706,138 km (0.103 R)
• M8: 4,637,085 km (0.111 R)
• M9: 5,291,576 km (0.072 R)
• M10: 5,805,594 km (0.101 R)
• M11: 8,400,968 km (0.085 R)
• M12: 9,374,999 km (0.109 R)
• M13: 9,747,348 km (0.087 R)
• M14: 10,161,735 km (0.097 R)
• M15: 11,724,135 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970

Radius: 8.2

Gravity: 14.43 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.45 AU - 3.79 AU

Year: 3675 Days

Day: 5.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,302,912 km

• M1: 122,072 km (0.11 R)
• M2: 449,990 km (0.083 R)
• M3: 752,477 km (0.104 R)
• M4: 1,037,760 km (0.11 R)
• M5: 2,111,424 km (0.079 R)
• M6: 2,710,863 km (0.056 R)
• M7: 3,358,921 km (0.055 R)
• M8: 3,794,849 km (0.092 R)
• M9: 5,781,659 km (0.059 R)
• M10: 8,791,568 km (0.092 R)
• M11: 9,499,016 km (0.085 R)
• M12: 10,717,790 km (0.111 R)
• M13: 11,756,149 km (0.043 R)
• M14: 12,761,446 km (0.058 R)
• M15: 17,299,199 km (0.075 R)
• M16: 19,827,552 km (0.104 R)
• M17: 24,827,412 km (0.092 R)
• M18: 25,369,405 km (0.098 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.2

Radius: 13.5

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.7 AU - 4.4 AU

Year: 4460 Days

Day: 13.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,302,912 km

• M1: 171,439 km (0.115 R)
• M2: 658,530 km (0.094 R)
• M3: 1,330,972 km (0.106 R)
• M4: 1,862,793 km (0.106 R)
• M5: 3,427,586 km (0.106 R)
• M6: 4,518,753 km (0.049 R)
• M7: 4,999,860 km (0.05 R)
• M8: 6,814,033 km (0.082 R)
• M9: 8,419,817 km (0.118 R)
• M10: 11,056,180 km (0.051 R)
• M11: 11,887,496 km (0.054 R)
• M12: 12,809,766 km (0.077 R)
• M13: 18,341,597 km (0.12 R)
• M14: 19,972,961 km (0.12 R)
• M15: 20,514,954 km (0.107 R)
• M16: 21,416,581 km (0.117 R)
• M17: 21,912,947 km (0.036 R)
• M18: 25,684,758 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 164.6

Radius: 5

Gravity: 6.58 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 5.29 AU - 8.72 AU

Year: 12350 Days

Day: 22.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,302,912 km

• M1: 64,477 km (0.101 R)
• M2: 1,727,257 km (0.074 R)
• M3: 2,156,453 km (0.096 R)
• M4: 2,474,199 km (0.04 R)
• M5: 4,684,807 km (0.11 R)
• M6: 6,952,411 km (0.12 R)
• M7: 7,384,450 km (0.092 R)
• M8: 14,334,767 km (0.094 R)
• M9: 14,915,805 km (0.059 R)
• M10: 15,212,009 km (0.089 R)
• M11: 17,990,790 km (0.093 R)
• M12: 21,463,554 km (0.105 R)
• M13: 24,038,433 km (0.062 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 253 - 11,766 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit