🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.7

Radius: 11.6

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.38 AU - 0.64 AU

Year: 247 Days

Day: 7.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 51,777,437 km

• M1: 144,212 km (0.029 R)
• M2: 764,146 km (0.092 R)
• M3: 1,146,069 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.2

Radius: 13.6

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.6 AU - 1 AU

Year: 485 Days

Day: 9.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,777,437 km

• M1: 169,195 km (0.094 R)
• M2: 614,398 km (0.104 R)
• M3: 1,133,952 km (0.056 R)
• M4: 1,561,652 km (0.075 R)
• M5: 3,019,932 km (0.041 R)
• M6: 3,691,627 km (0.1 R)
• M7: 4,135,484 km (0.037 R)
• M8: 4,599,536 km (0.113 R)
• M9: 5,081,989 km (0.083 R)
• M10: 5,687,412 km (0.026 R)
• M11: 7,002,228 km (0.034 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400

Radius: 14.5

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.7 AU - 1.12 AU

Year: 589 Days

Day: 9.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,777,437 km

• M1: 199,414 km (0.045 R)
• M2: 712,834 km (0.114 R)
• M3: 1,322,296 km (0.08 R)
• M4: 1,863,989 km (0.088 R)
• M5: 2,961,439 km (0.054 R)
• M6: 4,108,107 km (0.116 R)
• M7: 4,599,087 km (0.027 R)
• M8: 5,304,441 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388.2

Radius: 10.9

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.75 AU - 1.07 AU

Year: 589 Days

Day: 12.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,777,437 km

• M1: 135,536 km (0.092 R)
• M2: 489,035 km (0.065 R)
• M3: 851,511 km (0.108 R)
• M4: 1,199,476 km (0.112 R)
• M5: 1,724,714 km (0.09 R)
• M6: 2,080,009 km (0.116 R)
• M7: 2,446,524 km (0.088 R)
• M8: 4,901,125 km (0.103 R)
• M9: 5,829,081 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 918.4

Radius: 13.3

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 3.23 AU - 3.43 AU

Year: 4122 Days

Day: 8.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,777,437 km

• M1: 165,455 km (0.107 R)
• M2: 625,618 km (0.048 R)
• M3: 1,402,630 km (0.039 R)
• M4: 1,986,660 km (0.083 R)
• M5: 2,661,795 km (0.078 R)
• M6: 3,168,034 km (0.089 R)
• M7: 3,610,844 km (0.051 R)
• M8: 4,281,641 km (0.08 R)
• M9: 5,276,915 km (0.057 R)
• M10: 5,903,431 km (0.104 R)
• M11: 6,389,774 km (0.06 R)
• M12: 7,305,612 km (0.085 R)
• M13: 7,759,791 km (0.064 R)
• M14: 9,196,828 km (0.071 R)
• M15: 10,984,224 km (0.095 R)
• M16: 11,581,718 km (0.109 R)
• M17: 12,993,024 km (0.12 R)
• M18: 14,900,995 km (0.057 R)
• M19: 15,806,361 km (0.1 R)
• M20: 16,449,782 km (0.118 R)
• M21: 17,416,932 km (0.113 R)
• M22: 19,865,849 km (0.111 R)
• M23: 22,389,865 km (0.095 R)
• M24: 23,351,629 km (0.106 R)
• M25: 24,186,834 km (0.1 R)
• M26: 28,924,150 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 537.4

Radius: 11.4

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 4.19 AU - 5.89 AU

Year: 7674 Days

Day: 12.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 51,777,437 km

• M1: 142,118 km (0.119 R)
• M2: 503,546 km (0.047 R)
• M3: 876,494 km (0.054 R)
• M4: 1,644,529 km (0.098 R)
• M5: 3,243,581 km (0.075 R)
• M6: 4,301,238 km (0.087 R)
• M7: 5,154,694 km (0.072 R)
• M8: 5,637,446 km (0.115 R)
• M9: 6,150,417 km (0.12 R)
• M10: 7,196,256 km (0.114 R)
• M11: 7,917,617 km (0.087 R)
• M12: 8,854,698 km (0.07 R)
• M13: 10,326,292 km (0.057 R)
• M14: 10,948,619 km (0.05 R)
• M15: 13,298,054 km (0.035 R)
• M16: 16,538,942 km (0.061 R)
• M17: 17,794,667 km (0.108 R)
• M18: 18,689,711 km (0.102 R)
• M19: 20,346,657 km (0.075 R)
• M20: 21,020,894 km (0.08 R)
• M21: 21,865,225 km (0.088 R)
• M22: 23,539,524 km (0.09 R)
• M23: 24,199,400 km (0.046 R)
• M24: 25,297,898 km (0.044 R)
• M25: 25,903,021 km (0.118 R)
• M26: 27,594,225 km (0.071 R)
• M27: 28,235,401 km (0.106 R)
• M28: 35,205,316 km (0.094 R)
• M29: 37,056,141 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 801.9

Radius: 7.6

Gravity: 13.88 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 5.77 AU - 6.31 AU

Year: 10068 Days

Day: 21.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 51,777,437 km

• M1: 94,546 km (0.089 R)
• M2: 481,705 km (0.079 R)
• M3: 768,783 km (0.073 R)
• M4: 1,147,864 km (0.038 R)
• M5: 1,408,165 km (0.094 R)
• M6: 2,156,453 km (0.059 R)
• M7: 2,457,743 km (0.098 R)
• M8: 4,010,420 km (0.113 R)
• M9: 5,057,006 km (0.101 R)
• M10: 5,523,004 km (0.111 R)
• M11: 6,200,832 km (0.105 R)
• M12: 6,502,271 km (0.053 R)
• M13: 6,853,228 km (0.059 R)
• M14: 7,299,179 km (0.106 R)
• M15: 7,550,354 km (0.115 R)
• M16: 8,753,719 km (0.062 R)
• M17: 10,028,592 km (0.12 R)
• M18: 10,497,432 km (0.102 R)
• M19: 11,200,393 km (0.115 R)
• M20: 12,699,662 km (0.119 R)
• M21: 13,310,471 km (0.031 R)
• M22: 14,524,756 km (0.066 R)
• M23: 15,534,392 km (0.056 R)
• M24: 16,091,495 km (0.11 R)
• M25: 17,393,894 km (0.097 R)
• M26: 21,038,846 km (0.102 R)
• M27: 23,399,501 km (0.091 R)
• M28: 24,410,034 km (0.066 R)
• M29: 31,201,329 km (0.034 R)
• M30: 31,976,096 km (0.082 R)
• M31: 37,638,824 km (0.076 R)
• M32: 48,648,928 km (0.062 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 245

Radius: 4.8

Gravity: 10.63 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 8.16 AU - 10.14 AU

Year: 18773 Days

Day: 24.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 51,777,437 km

• M1: 59,690 km (0.073 R)
• M2: 748,139 km (0.099 R)
• M3: 1,256,921 km (0.076 R)
• M4: 1,512,734 km (0.096 R)
• M5: 2,574,579 km (0.116 R)
• M6: 3,344,859 km (0.082 R)
• M7: 3,702,996 km (0.094 R)
• M8: 4,200,409 km (0.114 R)
• M9: 6,070,083 km (0.074 R)
• M10: 6,720,236 km (0.11 R)
• M11: 13,053,312 km (0.086 R)
• M12: 13,872,959 km (0.111 R)
• M13: 16,036,144 km (0.069 R)
• M14: 16,975,618 km (0.058 R)
• M15: 18,963,924 km (0.107 R)
• M16: 19,443,834 km (0.064 R)
• M17: 26,738,226 km (0.048 R)
• M18: 28,471,018 km (0.116 R)
• M19: 34,351,411 km (0.099 R)
• M20: 38,904,273 km (0.119 R)
• M21: 43,152,852 km (0.117 R)
• M22: 44,541,420 km (0.09 R)
• M23: 49,635,526 km (0.084 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 16,882 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit