🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.55 AU - 0.59 AU

Year: 274 Days

Day: 41.7 Hours

Environment

Temp: -132 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,899,431 km

• M1: 613,650 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.4

Radius: 14.7

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.67 AU - 1.09 AU

Year: 525 Days

Day: 6.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,899,431 km

• M1: 193,280 km (0.103 R)
• M2: 662,868 km (0.051 R)
• M3: 1,403,527 km (0.036 R)
• M4: 2,086,741 km (0.115 R)
• M5: 2,909,978 km (0.113 R)
• M6: 4,078,038 km (0.109 R)
• M7: 4,948,847 km (0.101 R)
• M8: 6,494,044 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.1

Radius: 9.7

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.87 AU - 1.05 AU

Year: 598 Days

Day: 5.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,899,431 km

• M1: 120,875 km (0.053 R)
• M2: 493,972 km (0.051 R)
• M3: 940,821 km (0.092 R)
• M4: 1,330,972 km (0.1 R)
• M5: 1,843,943 km (0.1 R)
• M6: 2,164,681 km (0.103 R)
• M7: 2,581,610 km (0.117 R)
• M8: 3,040,726 km (0.105 R)
• M9: 3,444,192 km (0.077 R)
• M10: 3,766,725 km (0.12 R)
• M11: 4,095,990 km (0.09 R)
• M12: 4,633,644 km (0.037 R)
• M13: 5,611,117 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.8

Radius: 9.7

Gravity: 9.47 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.15 AU - 1.29 AU

Year: 857 Days

Day: 6.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 94.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,899,431 km

• M1: 120,725 km (0.072 R)
• M2: 605,273 km (0.083 R)
• M3: 1,105,079 km (0.117 R)
• M4: 1,445,564 km (0.097 R)
• M5: 2,931,221 km (0.066 R)
• M6: 3,279,933 km (0.107 R)
• M7: 5,865,733 km (0.088 R)
• M8: 8,359,978 km (0.094 R)
• M9: 8,899,428 km (0.071 R)
• M10: 10,108,029 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.2

Radius: 10.3

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.99 AU - 3.17 AU

Year: 2635 Days

Day: 10.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,899,431 km

• M1: 128,355 km (0.088 R)
• M2: 541,245 km (0.109 R)
• M3: 899,682 km (0.037 R)
• M4: 1,276,369 km (0.098 R)
• M5: 1,811,630 km (0.05 R)
• M6: 2,361,103 km (0.116 R)
• M7: 3,383,156 km (0.118 R)
• M8: 3,957,312 km (0.086 R)
• M9: 6,402,190 km (0.077 R)
• M10: 6,872,676 km (0.056 R)
• M11: 8,120,172 km (0.082 R)
• M12: 9,117,990 km (0.091 R)
• M13: 13,051,666 km (0.086 R)
• M14: 13,938,333 km (0.036 R)
• M15: 15,273,943 km (0.031 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.1

Radius: 14.8

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 4.18 AU - 6.22 AU

Year: 7539 Days

Day: 5.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,899,431 km

• M1: 188,045 km (0.101 R)
• M2: 680,521 km (0.106 R)
• M3: 1,284,896 km (0.075 R)
• M4: 2,389,976 km (0.032 R)
• M5: 3,060,024 km (0.062 R)
• M6: 4,179,465 km (0.118 R)
• M7: 5,412,750 km (0.115 R)
• M8: 8,869,359 km (0.108 R)
• M9: 9,654,747 km (0.106 R)
• M10: 10,667,076 km (0.107 R)
• M11: 12,241,743 km (0.114 R)
• M12: 13,857,849 km (0.109 R)
• M13: 17,766,542 km (0.102 R)
• M14: 19,083,004 km (0.052 R)
• M15: 22,809,935 km (0.103 R)
• M16: 27,424,880 km (0.074 R)
• M17: 28,647,095 km (0.052 R)
• M18: 30,179,575 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.1

Radius: 12.6

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 5 AU - 5.98 AU

Year: 8179 Days

Day: 6.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,899,431 km

• M1: 156,779 km (0.087 R)
• M2: 1,322,894 km (0.084 R)
• M3: 3,282,476 km (0.092 R)
• M4: 6,903,942 km (0.116 R)
• M5: 7,416,763 km (0.096 R)
• M6: 8,970,786 km (0.114 R)
• M7: 11,421,648 km (0.096 R)
• M8: 14,606,437 km (0.103 R)
• M9: 16,402,509 km (0.101 R)
• M10: 21,158,524 km (0.073 R)
• M11: 21,821,692 km (0.088 R)
• M12: 23,805,808 km (0.105 R)
• M13: 25,907,359 km (0.099 R)
• M14: 28,229,417 km (0.115 R)
• M15: 29,033,356 km (0.073 R)
• M16: 30,687,011 km (0.1 R)
• M17: 38,911,603 km (0.1 R)
• M18: 39,407,370 km (0.105 R)
• M19: 41,175,916 km (0.108 R)
• M20: 42,340,386 km (0.108 R)
• M21: 44,464,676 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 347.4

Radius: 5.5

Gravity: 11.48 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 7.35 AU - 9.41 AU

Year: 15424 Days

Day: 24.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,899,431 km

• M1: 68,516 km (0.094 R)
• M2: 391,049 km (0.111 R)
• M3: 648,806 km (0.115 R)
• M4: 1,071,420 km (0.118 R)
• M5: 1,850,226 km (0.098 R)
• M6: 2,755,742 km (0.061 R)
• M7: 3,091,290 km (0.112 R)
• M8: 3,843,917 km (0.061 R)
• M9: 4,774,266 km (0.074 R)
• M10: 5,258,515 km (0.082 R)
• M11: 7,784,774 km (0.072 R)
• M12: 11,692,420 km (0.11 R)
• M13: 13,178,376 km (0.105 R)
• M14: 13,870,415 km (0.113 R)
• M15: 18,307,638 km (0.08 R)
• M16: 19,248,160 km (0.077 R)
• M17: 26,454,588 km (0.045 R)
• M18: 29,312,207 km (0.032 R)
• M19: 30,597,402 km (0.049 R)
• M20: 32,256,293 km (0.116 R)
• M21: 40,794,591 km (0.036 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 839.7

Radius: 5

Gravity: 33.59 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 9.41 AU - 9.41 AU

Year: 18353 Days

Day: 21.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 76,899,431 km

• M1: 62,233 km (0.057 R)
• M2: 301,290 km (0.091 R)
• M3: 804,687 km (0.116 R)
• M4: 1,916,798 km (0.094 R)
• M5: 2,627,537 km (0.095 R)
• M6: 2,976,848 km (0.113 R)
• M7: 3,272,603 km (0.052 R)
• M8: 4,179,316 km (0.069 R)
• M9: 4,906,361 km (0.11 R)
• M10: 5,166,512 km (0.07 R)
• M11: 5,396,743 km (0.086 R)
• M12: 5,593,764 km (0.101 R)
• M13: 8,401,416 km (0.113 R)
• M14: 10,803,958 km (0.1 R)
• M15: 11,566,309 km (0.077 R)
• M16: 13,126,914 km (0.081 R)
• M17: 15,131,675 km (0.053 R)
• M18: 21,066,372 km (0.105 R)
• M19: 24,436,064 km (0.099 R)
• M20: 32,868,447 km (0.1 R)
• M21: 33,526,229 km (0.101 R)
• M22: 34,327,326 km (0.08 R)
• M23: 38,961,868 km (0.088 R)
• M24: 47,751,192 km (0.079 R)
• M25: 48,425,280 km (0.047 R)
• M26: 49,965,090 km (0.097 R)
• M27: 54,779,748 km (0.068 R)
• M28: 67,830,667 km (0.12 R)
• M29: 68,682,178 km (0.076 R)
• M30: 70,406,592 km (0.068 R)
• M31: 72,824,393 km (0.061 R)
• M32: 75,524,635 km (0.083 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: 550 - 12,598 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit