🌌 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: 782.8

Radius: 10.4

Gravity: 7.24 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.5 AU - 0.54 AU

Year: 254 Days

Day: 8.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,894,628 km

• M1: 129,402 km (0.058 R)
• M2: 480,209 km (0.109 R)
• M3: 1,037,461 km (0.067 R)
• M4: 1,540,858 km (0.111 R)
• M5: 1,960,480 km (0.087 R)
• M6: 2,330,884 km (0.114 R)
• M7: 2,775,788 km (0.056 R)
• M8: 3,392,730 km (0.061 R)
• M9: 3,734,262 km (0.039 R)
• M10: 4,221,502 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501

Radius: 12

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.52 AU - 0.54 AU

Year: 262 Days

Day: 14.6 Hours

Environment

Temp: -146 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,894,628 km

• M1: 149,448 km (0.046 R)
• M2: 541,245 km (0.086 R)
• M3: 1,016,667 km (0.111 R)
• M4: 1,520,064 km (0.059 R)
• M5: 2,064,301 km (0.044 R)
• M6: 2,710,265 km (0.109 R)
• M7: 3,602,167 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.5

Radius: 8.4

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.08 AU - 1.24 AU

Year: 847 Days

Day: 5.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 21,894,628 km

• M1: 110,403 km (0.115 R)
• M2: 468,241 km (0.063 R)
• M3: 1,060,499 km (0.049 R)
• M4: 1,850,825 km (0.112 R)
• M5: 3,182,396 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.6

Radius: 10.7

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.37 AU - 1.81 AU

Year: 1360 Days

Day: 13.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,894,628 km

• M1: 133,142 km (0.099 R)
• M2: 534,663 km (0.119 R)
• M3: 940,223 km (0.104 R)
• M4: 1,282,353 km (0.078 R)
• M5: 2,454,751 km (0.076 R)
• M6: 2,793,441 km (0.097 R)
• M7: 3,275,146 km (0.083 R)
• M8: 3,641,960 km (0.091 R)
• M9: 4,151,491 km (0.12 R)
• M10: 4,546,878 km (0.07 R)
• M11: 6,078,909 km (0.065 R)
• M12: 6,891,675 km (0.07 R)
• M13: 9,530,731 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.8

Radius: 8.6

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.2 AU - 2.34 AU

Year: 2320 Days

Day: 5.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,894,628 km

• M1: 106,962 km (0.093 R)
• M2: 777,610 km (0.098 R)
• M3: 1,101,938 km (0.11 R)
• M4: 1,626,727 km (0.093 R)
• M5: 1,957,787 km (0.051 R)
• M6: 2,226,615 km (0.102 R)
• M7: 2,637,111 km (0.084 R)
• M8: 3,308,357 km (0.105 R)
• M9: 3,965,391 km (0.115 R)
• M10: 4,456,221 km (0.075 R)
• M11: 4,785,636 km (0.049 R)
• M12: 5,493,683 km (0.108 R)
• M13: 5,987,804 km (0.088 R)
• M14: 6,293,582 km (0.094 R)
• M15: 8,038,342 km (0.098 R)
• M16: 8,765,089 km (0.065 R)
• M17: 9,887,671 km (0.059 R)
• M18: 11,783,675 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.5

Radius: 13

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.97 AU - 3.89 AU

Year: 4309 Days

Day: 8 Hours

Environment

Temp: -207 °C

Axial Tilt: 151.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 21,894,628 km

• M1: 161,715 km (0.071 R)
• M2: 613,501 km (0.049 R)
• M3: 1,365,081 km (0.091 R)
• M4: 1,980,526 km (0.117 R)
• M5: 2,484,521 km (0.088 R)
• M6: 2,931,370 km (0.115 R)
• M7: 3,776,598 km (0.096 R)
• M8: 4,234,218 km (0.112 R)
• M9: 5,476,030 km (0.072 R)
• M10: 6,035,975 km (0.109 R)
• M11: 7,403,449 km (0.107 R)
• M12: 8,231,623 km (0.042 R)
• M13: 9,909,513 km (0.04 R)
• M14: 11,133,672 km (0.114 R)
• M15: 16,761,843 km (0.092 R)
• M16: 17,525,241 km (0.032 R)
• M17: 18,311,677 km (0.114 R)
• M18: 18,807,145 km (0.108 R)
• M19: 20,020,085 km (0.03 R)
• M20: 21,216,568 km (0.089 R)
• M21: 22,319,554 km (0.093 R)
• M22: 23,315,875 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 724

Radius: 6.6

Gravity: 16.62 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 6.46 AU - 10.22 AU

Year: 16336 Days

Day: 24.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 21,894,628 km

• M1: 82,129 km (0.1 R)
• M2: 735,722 km (0.088 R)
• M3: 1,101,340 km (0.066 R)
• M4: 1,599,052 km (0.119 R)
• M5: 3,108,345 km (0.108 R)
• M6: 4,002,641 km (0.044 R)
• M7: 4,542,390 km (0.056 R)
• M8: 4,986,845 km (0.11 R)
• M9: 5,844,041 km (0.051 R)
• M10: 6,580,511 km (0.098 R)
• M11: 7,562,771 km (0.038 R)
• M12: 12,941,413 km (0.027 R)
• M13: 13,279,803 km (0.114 R)
• M14: 13,903,776 km (0.114 R)
• M15: 22,594,215 km (0.105 R)
• M16: 27,492,199 km (0.071 R)
• M17: 28,732,814 km (0.058 R)
• M18: 29,308,916 km (0.067 R)
• M19: 34,069,419 km (0.029 R)
• M20: 36,834,586 km (0.072 R)
• M21: 37,651,241 km (0.113 R)
• M22: 39,603,792 km (0.114 R)
• M23: 52,754,044 km (0.115 R)
• M24: 53,617,522 km (0.1 R)
• M25: 59,927,411 km (0.048 R)
• M26: 61,435,956 km (0.091 R)
• M27: 64,136,796 km (0.03 R)
• M28: 64,528,892 km (0.12 R)
• M29: 65,715,053 km (0.094 R)
• M30: 66,113,582 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 17.7

Radius: 3.3

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 7.8 AU - 10.78 AU

Year: 19205 Days

Day: 17.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,894,628 km

• M1: 46,525 km (0.107 R)
• M2: 229,334 km (0.064 R)
• M3: 382,522 km (0.045 R)
• M4: 1,060,649 km (0.034 R)
• M5: 1,902,586 km (0.09 R)
• M6: 2,612,128 km (0.106 R)
• M7: 4,130,996 km (0.079 R)
• M8: 5,025,890 km (0.076 R)
• M9: 5,583,890 km (0.12 R)
• M10: 5,850,773 km (0.067 R)
• M11: 8,968,692 km (0.095 R)
• M12: 9,824,840 km (0.054 R)
• M13: 10,095,911 km (0.066 R)
• M14: 13,556,858 km (0.091 R)
• M15: 14,781,915 km (0.098 R)
• M16: 17,562,491 km (0.104 R)
• M17: 21,374,394 km (0.032 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 177 - 14,934 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit