🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.8

Radius: 14.7

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.68 AU - 0.7 AU

Year: 382 Days

Day: 13.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,642,128 km

• M1: 182,809 km (0.083 R)
• M2: 781,948 km (0.081 R)
• M3: 1,397,693 km (0.107 R)
• M4: 1,938,489 km (0.105 R)
• M5: 2,433,209 km (0.069 R)
• M6: 3,023,523 km (0.096 R)
• M7: 3,624,008 km (0.041 R)
• M8: 4,169,143 km (0.108 R)
• M9: 4,886,764 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.6

Radius: 9.6

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.01 AU - 1.29 AU

Year: 822 Days

Day: 5.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,642,128 km

• M1: 120,576 km (0.104 R)
• M2: 503,098 km (0.114 R)
• M3: 946,506 km (0.104 R)
• M4: 1,305,840 km (0.058 R)
• M5: 1,706,313 km (0.069 R)
• M6: 2,461,932 km (0.084 R)
• M7: 3,123,005 km (0.095 R)
• M8: 3,650,487 km (0.059 R)
• M9: 4,038,843 km (0.116 R)
• M10: 4,399,374 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.9

Radius: 10

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.25 AU - 1.57 AU

Year: 1116 Days

Day: 10 Hours

Environment

Temp: -197 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 47,642,128 km

• M1: 144,661 km (0.097 R)
• M2: 1,422,526 km (0.075 R)
• M3: 2,344,498 km (0.088 R)
• M4: 2,773,993 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208

Radius: 9.5

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.5 AU - 1.88 AU

Year: 1465 Days

Day: 10.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,642,128 km

• M1: 118,332 km (0.054 R)
• M2: 438,621 km (0.111 R)
• M3: 754,272 km (0.113 R)
• M4: 1,382,135 km (0.106 R)
• M5: 1,754,334 km (0.088 R)
• M6: 2,533,440 km (0.083 R)
• M7: 3,109,841 km (0.053 R)
• M8: 4,457,867 km (0.072 R)
• M9: 4,936,431 km (0.117 R)
• M10: 5,243,555 km (0.076 R)
• M11: 5,718,379 km (0.107 R)
• M12: 7,202,090 km (0.053 R)
• M13: 7,789,561 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.3

Radius: 14

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.53 AU - 1.93 AU

Year: 1517 Days

Day: 14.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,642,128 km

• M1: 175,478 km (0.026 R)
• M2: 713,731 km (0.102 R)
• M3: 1,212,042 km (0.082 R)
• M4: 1,735,335 km (0.05 R)
• M5: 2,351,679 km (0.104 R)
• M6: 3,169,231 km (0.091 R)
• M7: 4,564,829 km (0.083 R)
• M8: 5,538,113 km (0.105 R)
• M9: 6,314,975 km (0.096 R)
• M10: 7,868,698 km (0.107 R)
• M11: 9,978,328 km (0.113 R)
• M12: 10,461,379 km (0.088 R)
• M13: 11,898,117 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388.4

Radius: 9.9

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.47 AU - 2.49 AU

Year: 2604 Days

Day: 10.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 47,642,128 km

• M1: 123,119 km (0.078 R)
• M2: 514,766 km (0.099 R)
• M3: 866,022 km (0.071 R)
• M4: 1,237,922 km (0.062 R)
• M5: 1,675,795 km (0.065 R)
• M6: 2,341,955 km (0.099 R)
• M7: 2,794,488 km (0.103 R)
• M8: 3,112,384 km (0.117 R)
• M9: 3,731,868 km (0.062 R)
• M10: 5,127,317 km (0.104 R)
• M11: 5,513,280 km (0.075 R)
• M12: 5,992,143 km (0.077 R)
• M13: 7,283,472 km (0.087 R)
• M14: 7,801,529 km (0.086 R)
• M15: 8,190,783 km (0.082 R)
• M16: 8,499,104 km (0.106 R)
• M17: 9,237,818 km (0.102 R)
• M18: 9,776,520 km (0.102 R)
• M19: 10,123,737 km (0.101 R)
• M20: 10,479,181 km (0.071 R)
• M21: 11,480,589 km (0.031 R)
• M22: 12,262,687 km (0.091 R)
• M23: 14,020,312 km (0.084 R)
• M24: 14,913,861 km (0.1 R)
• M25: 15,749,963 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.1

Radius: 8.3

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 4.19 AU - 6.39 AU

Year: 8114 Days

Day: 14.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,642,128 km

• M1: 103,671 km (0.06 R)
• M2: 1,019,509 km (0.103 R)
• M3: 1,510,789 km (0.104 R)
• M4: 2,411,667 km (0.095 R)
• M5: 4,358,534 km (0.058 R)
• M6: 4,864,474 km (0.096 R)
• M7: 5,362,036 km (0.105 R)
• M8: 6,565,701 km (0.051 R)
• M9: 10,058,213 km (0.054 R)
• M10: 10,828,343 km (0.112 R)
• M11: 11,441,096 km (0.108 R)
• M12: 14,579,360 km (0.069 R)
• M13: 15,565,060 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 297.3

Radius: 4.8

Gravity: 12.9 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 7.32 AU - 10.34 AU

Year: 17497 Days

Day: 23.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 47,642,128 km

• M1: 59,839 km (0.079 R)
• M2: 283,488 km (0.027 R)
• M3: 540,198 km (0.085 R)
• M4: 742,753 km (0.117 R)
• M5: 1,154,447 km (0.093 R)
• M6: 2,515,488 km (0.114 R)
• M7: 2,835,478 km (0.108 R)
• M8: 3,086,952 km (0.078 R)
• M9: 3,987,382 km (0.119 R)
• M10: 4,244,690 km (0.071 R)
• M11: 6,252,293 km (0.06 R)
• M12: 7,083,160 km (0.109 R)
• M13: 7,940,505 km (0.064 R)
• M14: 9,402,974 km (0.107 R)
• M15: 10,014,381 km (0.071 R)
• M16: 10,706,121 km (0.101 R)
• M17: 14,118,449 km (0.114 R)
• M18: 16,756,906 km (0.09 R)
• M19: 21,130,998 km (0.119 R)
• M20: 27,314,028 km (0.076 R)
• M21: 28,032,995 km (0.111 R)
• M22: 28,870,145 km (0.084 R)
• M23: 31,705,623 km (0.089 R)
• M24: 37,922,611 km (0.11 R)
• M25: 38,431,992 km (0.045 R)
• M26: 48,547,052 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 149.9

Radius: 7.8

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 7.97 AU - 12.09 AU

Year: 21183 Days

Day: 21 Hours

Environment

Temp: -227 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,642,128 km

• M1: 98,286 km (0.099 R)
• M2: 3,772,709 km (0.071 R)
• M3: 4,458,465 km (0.104 R)
• M4: 5,487,699 km (0.079 R)
• M5: 5,898,644 km (0.118 R)
• M6: 6,937,751 km (0.085 R)
• M7: 7,418,558 km (0.097 R)
• M8: 8,313,154 km (0.081 R)
• M9: 16,827,965 km (0.088 R)
• M10: 18,821,806 km (0.098 R)
• M11: 28,377,968 km (0.087 R)
• M12: 31,730,606 km (0.044 R)
• M13: 37,971,380 km (0.119 R)
• M14: 43,624,534 km (0.094 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 397 - 12,761 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit