🌌 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: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.5

Radius: 9

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.4 AU - 0.64 AU

Year: 259 Days

Day: 11.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,056,720 km

• M1: 111,899 km (0.092 R)
• M2: 402,867 km (0.11 R)
• M3: 968,048 km (0.057 R)
• M4: 1,313,769 km (0.107 R)
• M5: 1,951,953 km (0.077 R)
• M6: 2,324,153 km (0.107 R)
• M7: 2,626,490 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.5

Radius: 13.5

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.53 AU - 0.65 AU

Year: 313 Days

Day: 12.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,056,720 km

• M1: 167,849 km (0.04 R)
• M2: 629,657 km (0.046 R)
• M3: 1,171,501 km (0.103 R)
• M4: 1,595,312 km (0.097 R)
• M5: 2,408,526 km (0.114 R)
• M6: 2,857,619 km (0.089 R)
• M7: 3,503,732 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.3

Radius: 12.9

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.56 AU - 0.76 AU

Year: 370 Days

Day: 10.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 67,056,720 km

• M1: 160,369 km (0.117 R)
• M2: 593,904 km (0.094 R)
• M3: 1,032,973 km (0.076 R)
• M4: 1,563,447 km (0.084 R)
• M5: 2,344,199 km (0.041 R)
• M6: 2,814,684 km (0.042 R)
• M7: 3,225,330 km (0.073 R)
• M8: 3,749,371 km (0.06 R)
• M9: 4,262,492 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.4

Radius: 8.7

Gravity: 8.45 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.61 AU - 0.77 AU

Year: 396 Days

Day: 6.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 72.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,056,720 km

• M1: 108,159 km (0.068 R)
• M2: 384,766 km (0.115 R)
• M3: 658,081 km (0.064 R)
• M4: 1,044,343 km (0.09 R)
• M5: 1,342,192 km (0.107 R)
• M6: 1,654,702 km (0.103 R)
• M7: 1,976,188 km (0.119 R)
• M8: 2,736,444 km (0.079 R)
• M9: 4,382,170 km (0.115 R)
• M10: 5,280,655 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.8

Radius: 13.4

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 3.07 AU - 3.59 AU

Year: 4194 Days

Day: 7.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,056,720 km

• M1: 166,652 km (0.119 R)
• M2: 629,807 km (0.087 R)
• M3: 1,102,237 km (0.114 R)
• M4: 2,970,565 km (0.111 R)
• M5: 4,284,333 km (0.087 R)
• M6: 4,750,929 km (0.052 R)
• M7: 7,517,742 km (0.041 R)
• M8: 8,923,363 km (0.088 R)
• M9: 10,128,374 km (0.106 R)
• M10: 15,502,827 km (0.082 R)
• M11: 15,994,556 km (0.032 R)
• M12: 16,440,357 km (0.1 R)
• M13: 18,126,624 km (0.073 R)
• M14: 23,018,774 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915

Radius: 13.7

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 2.93 AU - 4.17 AU

Year: 4617 Days

Day: 13.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 67,056,720 km

• M1: 170,392 km (0.095 R)
• M2: 603,927 km (0.082 R)
• M3: 1,034,170 km (0.111 R)
• M4: 1,515,127 km (0.109 R)
• M5: 2,578,020 km (0.116 R)
• M6: 3,303,570 km (0.088 R)
• M7: 4,355,243 km (0.109 R)
• M8: 6,009,346 km (0.089 R)
• M9: 9,902,182 km (0.071 R)
• M10: 11,876,725 km (0.039 R)
• M11: 12,471,974 km (0.098 R)
• M12: 12,931,240 km (0.105 R)
• M13: 14,657,001 km (0.08 R)
• M14: 16,409,839 km (0.118 R)
• M15: 18,693,451 km (0.119 R)
• M16: 21,616,743 km (0.097 R)
• M17: 22,655,550 km (0.095 R)
• M18: 23,494,794 km (0.111 R)
• M19: 24,196,857 km (0.114 R)
• M20: 25,561,040 km (0.092 R)
• M21: 27,659,599 km (0.105 R)
• M22: 29,061,481 km (0.041 R)
• M23: 29,870,656 km (0.101 R)
• M24: 30,694,790 km (0.059 R)
• M25: 31,534,034 km (0.094 R)

Asteroid Belt

Center: 6.63 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 431.3

Radius: 7.1

Gravity: 8.56 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 8.26 AU - 11.14 AU

Year: 20853 Days

Day: 20.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,056,720 km

• M1: 88,263 km (0.084 R)
• M2: 318,793 km (0.057 R)
• M3: 1,590,076 km (0.075 R)
• M4: 3,880,270 km (0.068 R)
• M5: 4,504,093 km (0.094 R)
• M6: 5,638,793 km (0.083 R)
• M7: 5,949,956 km (0.09 R)
• M8: 6,396,506 km (0.062 R)
• M9: 7,220,192 km (0.116 R)
• M10: 7,870,942 km (0.086 R)
• M11: 12,039,038 km (0.049 R)
• M12: 22,279,910 km (0.066 R)
• M13: 23,058,417 km (0.117 R)
• M14: 25,502,996 km (0.046 R)
• M15: 25,820,293 km (0.108 R)
• M16: 27,891,027 km (0.1 R)
• M17: 31,140,592 km (0.098 R)
• M18: 31,746,164 km (0.106 R)
• M19: 47,777,970 km (0.1 R)
• M20: 57,686,884 km (0.114 R)
• M21: 61,967,776 km (0.113 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 16,461 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit