🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.7

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.54 AU - 0.64 AU

Year: 189 Days

Day: 39.2 Hours

Environment

Temp: 92 °C

Axial Tilt: 121.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.71 AU - 0.81 AU

Year: 276 Days

Day: 16.8 Hours

Environment

Temp: 4 °C

Axial Tilt: 22.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 36,493,675 km

• M1: 71,358 km (0.089 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.2 AU - 1.24 AU

Year: 561 Days

Day: 30.8 Hours

Environment

Temp: -63 °C

Axial Tilt: 27.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 36,493,675 km

• M1: 159,172 km (0.111 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.31 AU - 1.33 AU

Year: 631 Days

Day: 27 Hours

Environment

Temp: -70 °C

Axial Tilt: 48.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 36,493,675 km

• M1: 186,848 km (0.116 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.82 AU - 2.16 AU

Year: 1168 Days

Day: 47.5 Hours

Environment

Temp: -106 °C

Axial Tilt: 8.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 36,493,675 km

• M1: 556,055 km (0.064 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.51 AU - 3.27 AU

Year: 2045 Days

Day: 19.5 Hours

Environment

Temp: -132 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.3

Radius: 11

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 5.15 AU - 5.15 AU

Year: 4865 Days

Day: 11.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 36,493,675 km

• M1: 233,223 km (0.083 R)
• M2: 305,778 km (0.032 R)
• M3: 517,758 km (0.058 R)
• M4: 731,234 km (0.07 R)
• M5: 974,331 km (0.066 R)
• M6: 1,098,796 km (0.085 R)
• M7: 1,199,476 km (0.097 R)
• M8: 1,379,741 km (0.08 R)
• M9: 1,886,728 km (0.052 R)
• M10: 2,062,356 km (0.119 R)
• M11: 2,224,969 km (0.119 R)
• M12: 2,317,271 km (0.099 R)
• M13: 2,778,032 km (0.087 R)
• M14: 2,877,814 km (0.096 R)
• M15: 2,998,989 km (0.117 R)
• M16: 3,225,629 km (0.07 R)
• M17: 3,608,899 km (0.092 R)
• M18: 3,717,956 km (0.066 R)
• M19: 3,872,490 km (0.049 R)
• M20: 4,142,515 km (0.072 R)
• M21: 4,748,536 km (0.063 R)
• M22: 4,820,343 km (0.095 R)
• M23: 5,135,396 km (0.106 R)
• M24: 5,258,515 km (0.115 R)
• M25: 5,785,847 km (0.112 R)
• M26: 5,862,591 km (0.064 R)
• M27: 5,991,245 km (0.081 R)
• M28: 6,303,905 km (0.097 R)
• M29: 6,783,067 km (0.062 R)
• M30: 6,972,458 km (0.117 R)
• M31: 7,579,526 km (0.064 R)
• M32: 7,974,614 km (0.073 R)
• M33: 8,434,478 km (0.105 R)
• M34: 9,110,660 km (0.081 R)
• M35: 9,410,155 km (0.082 R)
• M36: 9,561,099 km (0.08 R)
• M37: 9,804,196 km (0.106 R)
• M38: 10,546,051 km (0.039 R)
• M39: 11,466,527 km (0.072 R)
• M40: 11,887,645 km (0.076 R)
• M41: 12,478,856 km (0.118 R)
• M42: 13,214,578 km (0.077 R)
• M43: 13,553,717 km (0.048 R)
• M44: 14,067,735 km (0.04 R)
• M45: 14,763,066 km (0.026 R)
• M46: 14,938,694 km (0.118 R)
• M47: 15,009,005 km (0.09 R)
• M48: 15,220,985 km (0.116 R)
• M49: 15,291,894 km (0.106 R)
• M50: 15,398,408 km (0.108 R)
• M51: 16,042,726 km (0.073 R)
• M52: 16,477,158 km (0.092 R)
• M53: 16,805,526 km (0.079 R)
• M54: 17,025,584 km (0.084 R)
• M55: 17,099,186 km (0.045 R)
• M56: 17,691,743 km (0.088 R)
• M57: 17,803,643 km (0.12 R)
• M58: 18,328,731 km (0.102 R)
• M59: 18,517,524 km (0.071 R)
• M60: 18,820,908 km (0.064 R)
• M61: 19,011,346 km (0.075 R)
• M62: 19,509,507 km (0.037 R)
• M63: 19,625,146 km (0.086 R)
• M64: 20,089,797 km (0.09 R)
• M65: 20,323,469 km (0.046 R)
• M66: 21,386,063 km (0.11 R)
• M67: 21,744,350 km (0.091 R)
• M68: 22,104,581 km (0.114 R)
• M69: 22,265,249 km (0.099 R)
• M70: 22,507,149 km (0.065 R)
• M71: 22,790,338 km (0.106 R)
• M72: 24,100,217 km (0.105 R)
• M73: 24,390,138 km (0.081 R)
• M74: 25,560,741 km (0.099 R)
• M75: 26,110,513 km (0.104 R)
• M76: 27,566,848 km (0.086 R)
• M77: 27,913,317 km (0.049 R)
• M78: 28,174,216 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 83.2

Radius: 7.1

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 9.6 AU - 16 AU

Year: 19062 Days

Day: 21.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (61)

Outer Limit: 36,493,675 km

• M1: 691,591 km (0.078 R)
• M2: 1,154,297 km (0.09 R)
• M3: 1,362,537 km (0.064 R)
• M4: 1,755,531 km (0.119 R)
• M5: 2,374,717 km (0.063 R)
• M6: 2,730,610 km (0.108 R)
• M7: 3,368,944 km (0.114 R)
• M8: 3,442,696 km (0.116 R)
• M9: 3,742,939 km (0.087 R)
• M10: 4,341,929 km (0.049 R)
• M11: 4,503,195 km (0.104 R)
• M12: 5,366,973 km (0.097 R)
• M13: 5,598,252 km (0.079 R)
• M14: 5,891,763 km (0.027 R)
• M15: 6,100,302 km (0.097 R)
• M16: 6,160,291 km (0.117 R)
• M17: 6,616,714 km (0.12 R)
• M18: 6,926,980 km (0.112 R)
• M19: 7,273,897 km (0.12 R)
• M20: 7,529,859 km (0.116 R)
• M21: 8,481,900 km (0.077 R)
• M22: 8,717,367 km (0.104 R)
• M23: 8,989,186 km (0.117 R)
• M24: 9,229,291 km (0.112 R)
• M25: 9,332,813 km (0.097 R)
• M26: 9,402,077 km (0.099 R)
• M27: 9,750,789 km (0.097 R)
• M28: 9,891,561 km (0.093 R)
• M29: 10,246,257 km (0.092 R)
• M30: 12,232,917 km (0.03 R)
• M31: 12,346,761 km (0.076 R)
• M32: 12,422,757 km (0.068 R)
• M33: 12,498,902 km (0.071 R)
• M34: 12,613,644 km (0.047 R)
• M35: 13,075,602 km (0.103 R)
• M36: 13,778,861 km (0.1 R)
• M37: 14,655,206 km (0.067 R)
• M38: 14,978,188 km (0.11 R)
• M39: 15,059,419 km (0.111 R)
• M40: 15,508,362 km (0.099 R)
• M41: 16,628,701 km (0.104 R)
• M42: 16,712,775 km (0.099 R)
• M43: 17,990,191 km (0.109 R)
• M44: 18,902,888 km (0.042 R)
• M45: 20,637,625 km (0.105 R)
• M46: 21,045,129 km (0.033 R)
• M47: 21,776,064 km (0.109 R)
• M48: 22,422,477 km (0.078 R)
• M49: 23,451,112 km (0.115 R)
• M50: 23,734,301 km (0.119 R)
• M51: 24,399,413 km (0.066 R)
• M52: 24,447,134 km (0.088 R)
• M53: 25,360,280 km (0.077 R)
• M54: 25,942,664 km (0.072 R)
• M55: 27,219,781 km (0.04 R)
• M56: 28,215,954 km (0.052 R)
• M57: 29,376,235 km (0.101 R)
• M58: 29,477,961 km (0.112 R)
• M59: 30,552,224 km (0.103 R)
• M60: 35,244,959 km (0.074 R)
• M61: 35,406,974 km (0.081 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 205 - 17,013 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit