🌌 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: 435.9

Radius: 12.1

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.41 AU - 0.63 AU

Year: 250 Days

Day: 7.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,971,470 km

• M1: 150,645 km (0.105 R)
• M2: 533,167 km (0.094 R)
• M3: 978,370 km (0.085 R)
• M4: 1,405,023 km (0.098 R)
• M5: 1,937,442 km (0.088 R)
• M6: 2,442,634 km (0.106 R)
• M7: 2,847,745 km (0.066 R)
• M8: 3,307,609 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441

Radius: 13.4

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.43 AU - 0.65 AU

Year: 265 Days

Day: 6.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 65,971,470 km

• M1: 166,652 km (0.098 R)
• M2: 683,064 km (0.094 R)
• M3: 1,116,898 km (0.073 R)
• M4: 1,831,676 km (0.11 R)
• M5: 2,573,981 km (0.097 R)
• M6: 3,622,961 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.3

Radius: 8.5

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.74 AU - 1 AU

Year: 541 Days

Day: 14.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,971,470 km

• M1: 105,766 km (0.076 R)
• M2: 401,072 km (0.108 R)
• M3: 671,545 km (0.101 R)
• M4: 1,061,247 km (0.099 R)
• M5: 1,413,101 km (0.111 R)
• M6: 1,799,962 km (0.12 R)
• M7: 2,416,305 km (0.087 R)
• M8: 2,703,383 km (0.054 R)
• M9: 3,314,490 km (0.087 R)
• M10: 3,590,349 km (0.077 R)
• M11: 4,290,168 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.7

Radius: 14.8

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.06 AU - 1.16 AU

Year: 780 Days

Day: 12.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 65,971,470 km

• M1: 185,801 km (0.106 R)
• M2: 766,988 km (0.106 R)
• M3: 1,271,133 km (0.076 R)
• M4: 1,839,007 km (0.076 R)
• M5: 2,734,051 km (0.027 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710

Radius: 14.8

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.17 AU - 1.45 AU

Year: 1000 Days

Day: 10.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,971,470 km

• M1: 184,005 km (0.055 R)
• M2: 738,565 km (0.085 R)
• M3: 1,475,035 km (0.069 R)
• M4: 1,967,661 km (0.115 R)
• M5: 2,800,173 km (0.045 R)
• M6: 3,811,903 km (0.113 R)
• M7: 4,834,405 km (0.081 R)
• M8: 5,599,448 km (0.098 R)
• M9: 6,805,207 km (0.101 R)
• M10: 7,421,251 km (0.051 R)
• M11: 7,971,173 km (0.061 R)
• M12: 9,582,492 km (0.112 R)
• M13: 10,084,841 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.3

Radius: 12.4

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.29 AU - 2.11 AU

Year: 1478 Days

Day: 11.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,971,470 km

• M1: 154,235 km (0.075 R)
• M2: 556,354 km (0.091 R)
• M3: 960,718 km (0.107 R)
• M4: 1,434,943 km (0.067 R)
• M5: 2,023,012 km (0.075 R)
• M6: 3,310,002 km (0.087 R)
• M7: 4,095,691 km (0.104 R)
• M8: 6,533,687 km (0.09 R)
• M9: 7,107,993 km (0.119 R)
• M10: 8,102,669 km (0.107 R)
• M11: 10,268,099 km (0.055 R)
• M12: 10,669,171 km (0.049 R)
• M13: 11,862,363 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.4

Radius: 14.5

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 2.43 AU - 3.43 AU

Year: 3344 Days

Day: 7.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 65,971,470 km

• M1: 180,415 km (0.106 R)
• M2: 678,576 km (0.101 R)
• M3: 1,673,402 km (0.093 R)
• M4: 2,156,902 km (0.109 R)
• M5: 2,642,048 km (0.086 R)
• M6: 3,182,994 km (0.108 R)
• M7: 5,970,152 km (0.111 R)
• M8: 7,308,155 km (0.049 R)
• M9: 8,837,943 km (0.118 R)
• M10: 9,491,686 km (0.116 R)
• M11: 10,572,381 km (0.102 R)
• M12: 11,225,974 km (0.101 R)
• M13: 11,949,878 km (0.1 R)
• M14: 12,569,213 km (0.055 R)
• M15: 13,349,964 km (0.064 R)
• M16: 14,260,567 km (0.1 R)
• M17: 15,469,766 km (0.061 R)
• M18: 16,313,199 km (0.109 R)
• M19: 18,091,768 km (0.073 R)
• M20: 18,790,989 km (0.078 R)
• M21: 19,568,897 km (0.044 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.5

Radius: 13.5

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 4.94 AU - 5.32 AU

Year: 7748 Days

Day: 12.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,971,470 km

• M1: 167,849 km (0.064 R)
• M2: 597,943 km (0.068 R)
• M3: 2,158,548 km (0.11 R)
• M4: 2,968,620 km (0.087 R)
• M5: 4,287,774 km (0.103 R)
• M6: 5,079,745 km (0.103 R)
• M7: 8,400,519 km (0.11 R)
• M8: 9,426,910 km (0.032 R)
• M9: 10,306,695 km (0.118 R)
• M10: 13,009,779 km (0.085 R)
• M11: 16,588,758 km (0.109 R)
• M12: 18,201,872 km (0.11 R)
• M13: 20,923,656 km (0.115 R)
• M14: 21,737,917 km (0.083 R)
• M15: 27,074,971 km (0.057 R)
• M16: 31,754,093 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 492.9

Radius: 5.7

Gravity: 15.17 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 8.49 AU - 10.19 AU

Year: 19035 Days

Day: 24.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 65,971,470 km

• M1: 71,957 km (0.053 R)
• M2: 345,870 km (0.093 R)
• M3: 574,755 km (0.079 R)
• M4: 883,226 km (0.105 R)
• M5: 1,100,592 km (0.105 R)
• M6: 1,779,915 km (0.07 R)
• M7: 2,150,320 km (0.044 R)
• M8: 2,593,129 km (0.106 R)
• M9: 4,040,489 km (0.076 R)
• M10: 5,839,104 km (0.119 R)
• M11: 6,116,159 km (0.114 R)
• M12: 6,402,041 km (0.117 R)
• M13: 6,825,852 km (0.115 R)
• M14: 8,259,149 km (0.115 R)
• M15: 9,337,002 km (0.101 R)
• M16: 10,738,734 km (0.095 R)
• M17: 11,644,100 km (0.106 R)
• M18: 11,831,097 km (0.105 R)
• M19: 12,404,057 km (0.109 R)
• M20: 13,674,442 km (0.089 R)
• M21: 14,448,162 km (0.039 R)
• M22: 15,325,255 km (0.086 R)
• M23: 17,104,572 km (0.044 R)
• M24: 18,931,012 km (0.111 R)
• M25: 19,450,865 km (0.047 R)
• M26: 20,428,636 km (0.116 R)
• M27: 23,458,741 km (0.074 R)
• M28: 24,565,766 km (0.109 R)
• M29: 25,497,162 km (0.097 R)
• M30: 25,707,347 km (0.116 R)
• M31: 26,667,316 km (0.114 R)
• M32: 32,685,938 km (0.082 R)
• M33: 34,576,855 km (0.071 R)
• M34: 36,141,200 km (0.113 R)
• M35: 38,575,157 km (0.051 R)
• M36: 46,060,586 km (0.088 R)
• M37: 47,158,036 km (0.118 R)
• M38: 52,567,196 km (0.117 R)
• M39: 57,469,219 km (0.103 R)
• M40: 57,830,647 km (0.037 R)
• M41: 59,291,321 km (0.101 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 185 - 16,194 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit