🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.3

Radius: 8.3

Gravity: 9.67 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.7 AU - 0.8 AU

Year: 426 Days

Day: 10.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,751,989 km

• M1: 104,270 km (0.077 R)
• M2: 459,265 km (0.101 R)
• M3: 926,609 km (0.112 R)
• M4: 1,242,410 km (0.079 R)
• M5: 1,580,950 km (0.034 R)
• M6: 2,114,267 km (0.083 R)
• M7: 2,803,614 km (0.106 R)
• M8: 4,169,143 km (0.096 R)
• M9: 4,491,227 km (0.103 R)
• M10: 5,059,550 km (0.1 R)
• M11: 5,377,595 km (0.072 R)
• M12: 5,658,240 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.8

Radius: 12.9

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.66 AU - 1.02 AU

Year: 505 Days

Day: 5.6 Hours

Environment

Temp: -152 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,751,989 km

• M1: 160,519 km (0.07 R)
• M2: 658,679 km (0.064 R)
• M3: 1,233,734 km (0.032 R)
• M4: 1,656,796 km (0.109 R)
• M5: 2,171,563 km (0.082 R)
• M6: 2,573,233 km (0.035 R)
• M7: 3,051,647 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.2

Radius: 13.3

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.07 AU - 1.51 AU

Year: 961 Days

Day: 7.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,751,989 km

• M1: 165,455 km (0.092 R)
• M2: 594,502 km (0.114 R)
• M3: 1,127,220 km (0.094 R)
• M4: 1,806,095 km (0.12 R)
• M5: 2,261,770 km (0.102 R)
• M6: 2,698,596 km (0.119 R)
• M7: 3,425,791 km (0.088 R)
• M8: 3,928,889 km (0.077 R)
• M9: 4,902,023 km (0.102 R)
• M10: 6,155,803 km (0.086 R)
• M11: 7,205,381 km (0.1 R)
• M12: 9,402,376 km (0.073 R)
• M13: 9,832,170 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.5

Radius: 13.5

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 3.71 AU - 4.23 AU

Year: 5189 Days

Day: 6.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 58,751,989 km

• M1: 167,849 km (0.038 R)
• M2: 699,819 km (0.111 R)
• M3: 1,374,954 km (0.073 R)
• M4: 1,867,729 km (0.113 R)
• M5: 2,953,212 km (0.081 R)
• M6: 3,507,472 km (0.109 R)
• M7: 4,446,647 km (0.113 R)
• M8: 5,821,003 km (0.114 R)
• M9: 6,337,265 km (0.053 R)
• M10: 7,330,894 km (0.085 R)
• M11: 8,037,594 km (0.113 R)
• M12: 8,533,811 km (0.104 R)
• M13: 9,705,760 km (0.101 R)
• M14: 10,187,166 km (0.117 R)
• M15: 10,853,924 km (0.109 R)
• M16: 11,329,196 km (0.059 R)
• M17: 13,469,044 km (0.028 R)
• M18: 15,430,272 km (0.096 R)
• M19: 18,413,703 km (0.107 R)
• M20: 19,912,524 km (0.083 R)
• M21: 23,365,841 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.9

Radius: 10.9

Gravity: 8.3 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 4.27 AU - 5.65 AU

Year: 7247 Days

Day: 12.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 58,751,989 km

• M1: 137,032 km (0.08 R)
• M2: 900,579 km (0.06 R)
• M3: 1,310,777 km (0.103 R)
• M4: 2,033,933 km (0.11 R)
• M5: 3,644,653 km (0.042 R)
• M6: 4,262,642 km (0.087 R)
• M7: 7,616,776 km (0.087 R)
• M8: 9,396,841 km (0.087 R)
• M9: 11,123,200 km (0.046 R)
• M10: 15,001,226 km (0.096 R)
• M11: 15,780,032 km (0.107 R)
• M12: 21,030,319 km (0.098 R)
• M13: 26,490,492 km (0.111 R)
• M14: 28,111,385 km (0.057 R)
• M15: 30,101,934 km (0.111 R)
• M16: 34,139,580 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 321.8

Radius: 6.3

Gravity: 8.11 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 9.34 AU - 10.76 AU

Year: 20901 Days

Day: 17.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 58,751,989 km

• M1: 79,137 km (0.094 R)
• M2: 322,832 km (0.094 R)
• M3: 657,931 km (0.099 R)
• M4: 1,017,565 km (0.064 R)
• M5: 1,236,277 km (0.074 R)
• M6: 1,471,893 km (0.093 R)
• M7: 1,925,923 km (0.114 R)
• M8: 2,664,338 km (0.075 R)
• M9: 3,442,845 km (0.08 R)
• M10: 4,030,466 km (0.113 R)
• M11: 4,948,847 km (0.093 R)
• M12: 5,331,369 km (0.091 R)
• M13: 9,926,118 km (0.085 R)
• M14: 11,050,496 km (0.114 R)
• M15: 12,763,840 km (0.092 R)
• M16: 14,159,887 km (0.118 R)
• M17: 18,049,133 km (0.067 R)
• M18: 19,122,198 km (0.118 R)
• M19: 19,631,579 km (0.114 R)
• M20: 21,394,739 km (0.066 R)
• M21: 21,851,462 km (0.076 R)
• M22: 23,069,488 km (0.063 R)
• M23: 25,537,853 km (0.098 R)
• M24: 27,742,925 km (0.116 R)
• M25: 30,644,974 km (0.106 R)
• M26: 32,049,997 km (0.047 R)
• M27: 34,988,249 km (0.081 R)
• M28: 35,622,245 km (0.116 R)
• M29: 38,101,082 km (0.109 R)
• M30: 38,502,752 km (0.096 R)
• M31: 41,252,959 km (0.117 R)
• M32: 42,532,171 km (0.059 R)
• M33: 44,131,222 km (0.11 R)
• M34: 47,449,004 km (0.065 R)
• M35: 49,010,506 km (0.104 R)
• M36: 54,915,733 km (0.112 R)
• M37: 57,862,063 km (0.085 R)
• M38: 60,185,168 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 270.6

Radius: 4.8

Gravity: 11.74 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 9.67 AU - 10.87 AU

Year: 21591 Days

Day: 23.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 58,751,989 km

• M1: 62,233 km (0.065 R)
• M2: 261,796 km (0.036 R)
• M3: 437,424 km (0.075 R)
• M4: 651,200 km (0.06 R)
• M5: 1,021,454 km (0.105 R)
• M6: 2,019,272 km (0.075 R)
• M7: 4,501,998 km (0.062 R)
• M8: 4,726,096 km (0.093 R)
• M9: 5,624,880 km (0.073 R)
• M10: 6,349,831 km (0.108 R)
• M11: 7,618,571 km (0.108 R)
• M12: 7,799,584 km (0.058 R)
• M13: 12,236,807 km (0.027 R)
• M14: 12,928,398 km (0.086 R)
• M15: 13,251,080 km (0.116 R)
• M16: 14,457,737 km (0.103 R)
• M17: 15,373,575 km (0.042 R)
• M18: 15,808,905 km (0.062 R)
• M19: 16,252,612 km (0.105 R)
• M20: 16,477,457 km (0.085 R)
• M21: 22,704,918 km (0.041 R)
• M22: 23,650,975 km (0.082 R)
• M23: 23,843,208 km (0.106 R)
• M24: 31,366,784 km (0.12 R)
• M25: 31,949,468 km (0.064 R)
• M26: 34,722,713 km (0.074 R)
• M27: 37,001,986 km (0.084 R)
• M28: 42,561,791 km (0.112 R)
• M29: 52,475,193 km (0.09 R)
• M30: 54,626,710 km (0.109 R)
• M31: 55,979,523 km (0.077 R)
• M32: 56,664,382 km (0.076 R)
• M33: 58,050,556 km (0.079 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: 511 - 20,487 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit