🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.6 AU - 0.7 AU

Year: 333 Days

Day: 24.3 Hours

Environment

Temp: -127 °C

Axial Tilt: 4.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,144,014 km

• M1: 421,118 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.4

Radius: 10

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.78 AU - 1.06 AU

Year: 561 Days

Day: 12.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,144,014 km

• M1: 124,316 km (0.099 R)
• M2: 445,054 km (0.106 R)
• M3: 791,672 km (0.091 R)
• M4: 1,206,656 km (0.114 R)
• M5: 1,779,317 km (0.075 R)
• M6: 2,436,949 km (0.089 R)
• M7: 2,832,336 km (0.11 R)
• M8: 3,196,159 km (0.081 R)
• M9: 3,660,062 km (0.061 R)
• M10: 4,168,395 km (0.099 R)
• M11: 4,546,429 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.2

Radius: 12.5

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.81 AU - 1.35 AU

Year: 714 Days

Day: 12.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,144,014 km

• M1: 155,432 km (0.119 R)
• M2: 548,575 km (0.118 R)
• M3: 970,441 km (0.116 R)
• M4: 1,504,655 km (0.091 R)
• M5: 2,262,668 km (0.12 R)
• M6: 2,996,745 km (0.114 R)
• M7: 3,488,024 km (0.116 R)
• M8: 5,061,644 km (0.072 R)
• M9: 5,781,808 km (0.078 R)
• M10: 6,217,437 km (0.082 R)
• M11: 6,674,907 km (0.043 R)
• M12: 7,426,487 km (0.042 R)
• M13: 8,406,952 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.1

Radius: 10.7

Gravity: 7.94 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1 AU - 1.3 AU

Year: 784 Days

Day: 6.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,144,014 km

• M1: 133,142 km (0.096 R)
• M2: 481,406 km (0.077 R)
• M3: 895,044 km (0.073 R)
• M4: 1,795,474 km (0.062 R)
• M5: 2,188,766 km (0.114 R)
• M6: 2,686,778 km (0.117 R)
• M7: 3,611,741 km (0.119 R)
• M8: 4,068,314 km (0.027 R)
• M9: 5,399,586 km (0.116 R)
• M10: 7,862,415 km (0.117 R)
• M11: 8,215,616 km (0.047 R)
• M12: 8,605,767 km (0.047 R)
• M13: 8,953,881 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.2

Radius: 9.6

Gravity: 8.7 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.16 AU - 1.76 AU

Year: 1122 Days

Day: 7.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 60,144,014 km

• M1: 119,379 km (0.114 R)
• M2: 657,632 km (0.107 R)
• M3: 993,479 km (0.118 R)
• M4: 1,296,415 km (0.102 R)
• M5: 1,773,782 km (0.059 R)
• M6: 2,412,415 km (0.117 R)
• M7: 2,759,482 km (0.063 R)
• M8: 3,069,599 km (0.073 R)
• M9: 3,633,433 km (0.052 R)
• M10: 3,973,768 km (0.119 R)
• M11: 4,890,354 km (0.117 R)
• M12: 7,778,790 km (0.111 R)
• M13: 8,100,126 km (0.101 R)
• M14: 9,235,873 km (0.078 R)
• M15: 10,123,587 km (0.077 R)
• M16: 11,167,780 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.7

Radius: 12.3

Gravity: 5.99 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 5.78 AU - 5.86 AU

Year: 8927 Days

Day: 8.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 60,144,014 km

• M1: 153,039 km (0.042 R)
• M2: 547,977 km (0.073 R)
• M3: 1,175,690 km (0.117 R)
• M4: 1,717,084 km (0.027 R)
• M5: 2,403,589 km (0.093 R)
• M6: 2,822,014 km (0.109 R)
• M7: 3,456,608 km (0.086 R)
• M8: 6,016,826 km (0.078 R)
• M9: 7,685,291 km (0.1 R)
• M10: 11,578,127 km (0.066 R)
• M11: 13,947,309 km (0.037 R)
• M12: 15,312,838 km (0.044 R)
• M13: 15,718,847 km (0.091 R)
• M14: 16,201,749 km (0.081 R)
• M15: 21,421,218 km (0.103 R)
• M16: 26,387,868 km (0.114 R)
• M17: 27,070,483 km (0.065 R)
• M18: 27,664,985 km (0.096 R)
• M19: 30,555,066 km (0.078 R)
• M20: 31,525,358 km (0.09 R)
• M21: 36,326,402 km (0.119 R)
• M22: 42,518,856 km (0.073 R)
• M23: 43,053,370 km (0.104 R)
• M24: 43,592,520 km (0.102 R)
• M25: 47,780,064 km (0.106 R)
• M26: 48,357,960 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 895.2

Radius: 5.1

Gravity: 34.42 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 5.81 AU - 7.69 AU

Year: 11150 Days

Day: 18.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,144,014 km

• M1: 63,878 km (0.117 R)
• M2: 249,679 km (0.07 R)
• M3: 562,638 km (0.079 R)
• M4: 861,235 km (0.078 R)
• M5: 1,183,618 km (0.119 R)
• M6: 2,256,235 km (0.101 R)
• M7: 4,323,678 km (0.062 R)
• M8: 4,858,191 km (0.043 R)
• M9: 19,370,082 km (0.081 R)
• M10: 20,551,755 km (0.107 R)
• M11: 21,072,655 km (0.114 R)
• M12: 24,870,048 km (0.094 R)
• M13: 26,774,877 km (0.063 R)
• M14: 28,132,777 km (0.104 R)
• M15: 37,385,256 km (0.108 R)
• M16: 39,344,539 km (0.051 R)
• M17: 41,646,701 km (0.057 R)
• M18: 50,645,312 km (0.097 R)
• M19: 54,019,941 km (0.025 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 594.1

Radius: 4.2

Gravity: 33.68 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 6.07 AU - 9.81 AU

Year: 14225 Days

Day: 19.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 60,144,014 km

• M1: 52,359 km (0.103 R)
• M2: 235,766 km (0.044 R)
• M3: 372,499 km (0.061 R)
• M4: 764,296 km (0.079 R)
• M5: 901,776 km (0.095 R)
• M6: 1,032,824 km (0.093 R)
• M7: 1,347,727 km (0.102 R)
• M8: 2,090,630 km (0.12 R)
• M9: 2,363,048 km (0.067 R)
• M10: 2,680,495 km (0.114 R)
• M11: 3,749,222 km (0.086 R)
• M12: 4,240,950 km (0.048 R)
• M13: 4,581,285 km (0.102 R)
• M14: 4,939,572 km (0.112 R)
• M15: 7,316,383 km (0.077 R)
• M16: 7,491,861 km (0.116 R)
• M17: 7,714,912 km (0.091 R)
• M18: 9,610,766 km (0.102 R)
• M19: 12,529,719 km (0.043 R)
• M20: 15,124,345 km (0.039 R)
• M21: 15,916,316 km (0.085 R)
• M22: 17,897,141 km (0.068 R)
• M23: 19,360,807 km (0.063 R)
• M24: 20,902,562 km (0.054 R)
• M25: 21,434,084 km (0.076 R)
• M26: 23,650,825 km (0.112 R)
• M27: 23,938,202 km (0.075 R)
• M28: 29,407,201 km (0.083 R)
• M29: 32,136,315 km (0.076 R)
• M30: 36,157,656 km (0.085 R)
• M31: 37,569,112 km (0.11 R)
• M32: 37,960,310 km (0.109 R)
• M33: 44,887,439 km (0.119 R)
• M34: 46,516,860 km (0.104 R)
• M35: 57,472,510 km (0.088 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 648.9

Radius: 4.4

Gravity: 33.52 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 6.05 AU - 9.99 AU

Year: 14441 Days

Day: 21.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,144,014 km

• M1: 64,177 km (0.072 R)
• M2: 291,716 km (0.099 R)
• M3: 766,988 km (0.103 R)
• M4: 1,520,214 km (0.083 R)
• M5: 3,758,048 km (0.097 R)
• M6: 4,765,889 km (0.106 R)
• M7: 5,103,831 km (0.074 R)
• M8: 6,253,640 km (0.119 R)
• M9: 6,453,951 km (0.087 R)
• M10: 13,896,146 km (0.101 R)
• M11: 14,237,529 km (0.11 R)
• M12: 17,487,692 km (0.077 R)
• M13: 22,858,854 km (0.081 R)
• M14: 26,641,286 km (0.105 R)
• M15: 31,167,819 km (0.092 R)
• M16: 37,349,203 km (0.11 R)
• M17: 37,612,046 km (0.074 R)
• M18: 42,415,783 km (0.084 R)
• M19: 42,989,491 km (0.057 R)
• M20: 55,920,582 km (0.104 R)
• M21: 58,182,801 km (0.094 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 477 - 14,019 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit