🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.39

Radius: 0.69

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.57 AU - 0.87 AU

Year: 261 Days

Day: 28.7 Hours

Environment

Temp: -7 °C

Axial Tilt: 18 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 76,774,603 km

• M1: 92,601 km (0.088 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.8 AU - 1.16 AU

Year: 415 Days

Day: 44.8 Hours

Environment

Temp: -40 °C

Axial Tilt: 26.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,774,603 km

• M1: 997,219 km (0.11 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.95 AU - 1.47 AU

Year: 569 Days

Day: 28.1 Hours

Environment

Temp: -79 °C

Axial Tilt: 117.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.17

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.78 AU - 2.14 AU

Year: 1173 Days

Day: 45.7 Hours

Environment

Temp: -114 °C

Axial Tilt: 20.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.4

Radius: 13.9

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.98 AU - 5.12 AU

Year: 4149 Days

Day: 7.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 76,774,603 km

• M1: 175,478 km (0.04 R)
• M2: 692,937 km (0.093 R)
• M3: 1,131,409 km (0.106 R)
• M4: 1,829,133 km (0.079 R)
• M5: 2,698,746 km (0.055 R)
• M6: 3,489,221 km (0.071 R)
• M7: 5,504,753 km (0.094 R)
• M8: 8,582,280 km (0.106 R)
• M9: 9,615,852 km (0.115 R)
• M10: 10,248,801 km (0.069 R)
• M11: 10,999,782 km (0.096 R)
• M12: 12,761,446 km (0.062 R)
• M13: 14,107,229 km (0.118 R)
• M14: 15,318,224 km (0.116 R)
• M15: 16,537,895 km (0.066 R)
• M16: 18,327,235 km (0.101 R)
• M17: 19,301,865 km (0.091 R)
• M18: 20,585,714 km (0.111 R)
• M19: 21,567,675 km (0.1 R)
• M20: 23,700,791 km (0.11 R)
• M21: 25,172,385 km (0.106 R)
• M22: 27,200,633 km (0.09 R)
• M23: 28,041,672 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699

Radius: 14.9

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 3.93 AU - 5.35 AU

Year: 4273 Days

Day: 11.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,774,603 km

• M1: 187,745 km (0.069 R)
• M2: 674,238 km (0.088 R)
• M3: 1,153,549 km (0.095 R)
• M4: 2,408,077 km (0.089 R)
• M5: 3,604,561 km (0.045 R)
• M6: 4,395,784 km (0.095 R)
• M7: 6,540,868 km (0.081 R)
• M8: 7,481,539 km (0.102 R)
• M9: 9,551,674 km (0.078 R)
• M10: 10,418,893 km (0.052 R)
• M11: 12,598,684 km (0.06 R)
• M12: 13,138,283 km (0.085 R)
• M13: 17,061,039 km (0.097 R)
• M14: 22,769,245 km (0.069 R)
• M15: 23,350,732 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.1

Radius: 10.1

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 5.57 AU - 8.67 AU

Year: 8122 Days

Day: 5 Hours

Environment

Temp: -178 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 76,774,603 km

• M1: 125,812 km (0.089 R)
• M2: 553,213 km (0.112 R)
• M3: 872,904 km (0.088 R)
• M4: 1,265,897 km (0.083 R)
• M5: 2,012,091 km (0.086 R)
• M6: 2,352,726 km (0.114 R)
• M7: 2,867,791 km (0.113 R)
• M8: 5,106,075 km (0.099 R)
• M9: 6,004,859 km (0.11 R)
• M10: 12,948,593 km (0.104 R)
• M11: 14,851,777 km (0.079 R)
• M12: 15,650,480 km (0.104 R)
• M13: 18,149,214 km (0.062 R)
• M14: 20,751,319 km (0.078 R)
• M15: 25,020,244 km (0.106 R)
• M16: 25,624,619 km (0.054 R)
• M17: 26,594,013 km (0.119 R)
• M18: 27,405,133 km (0.081 R)
• M19: 27,862,753 km (0.094 R)
• M20: 32,519,884 km (0.093 R)
• M21: 33,343,421 km (0.104 R)
• M22: 36,445,632 km (0.081 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.2

Radius: 11.5

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 6.98 AU - 11.38 AU

Year: 11890 Days

Day: 14.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,774,603 km

• M1: 183,557 km (0.068 R)
• M2: 880,383 km (0.114 R)
• M3: 2,749,758 km (0.119 R)
• M4: 3,176,412 km (0.077 R)
• M5: 5,066,281 km (0.066 R)
• M6: 5,612,763 km (0.116 R)
• M7: 7,492,011 km (0.104 R)
• M8: 10,990,357 km (0.074 R)
• M9: 12,790,319 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 852.4

Radius: 6.3

Gravity: 21.48 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 11.28 AU - 13.08 AU

Year: 18172 Days

Day: 19.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 76,774,603 km

• M1: 85,271 km (0.094 R)
• M2: 358,436 km (0.095 R)
• M3: 1,036,115 km (0.083 R)
• M4: 1,234,033 km (0.114 R)
• M5: 2,067,443 km (0.109 R)
• M6: 3,451,971 km (0.119 R)
• M7: 3,931,881 km (0.104 R)
• M8: 5,842,246 km (0.056 R)
• M9: 12,493,816 km (0.094 R)
• M10: 13,332,162 km (0.042 R)
• M11: 14,659,095 km (0.107 R)
• M12: 17,918,534 km (0.091 R)
• M13: 18,983,371 km (0.047 R)
• M14: 23,042,560 km (0.08 R)
• M15: 23,981,885 km (0.099 R)
• M16: 26,724,912 km (0.097 R)
• M17: 27,067,491 km (0.079 R)
• M18: 32,824,466 km (0.068 R)
• M19: 34,685,014 km (0.096 R)
• M20: 35,229,251 km (0.046 R)
• M21: 36,195,504 km (0.108 R)
• M22: 37,463,496 km (0.082 R)
• M23: 38,760,808 km (0.115 R)
• M24: 40,237,040 km (0.082 R)
• M25: 43,932,257 km (0.056 R)
• M26: 47,345,931 km (0.034 R)
• M27: 62,368,399 km (0.092 R)
• M28: 65,008,652 km (0.049 R)
• M29: 68,359,196 km (0.107 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 310 - 17,022 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit