🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.2

Radius: 12.9

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.43 AU - 0.67 AU

Year: 277 Days

Day: 9.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,548,000 km

• M1: 160,519 km (0.108 R)
• M2: 578,944 km (0.07 R)
• M3: 1,044,193 km (0.081 R)
• M4: 1,591,871 km (0.107 R)
• M5: 2,030,342 km (0.113 R)
• M6: 2,471,955 km (0.03 R)
• M7: 3,389,439 km (0.109 R)
• M8: 3,803,675 km (0.09 R)
• M9: 4,366,463 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.1

Radius: 12.5

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.87 AU - 0.93 AU

Year: 579 Days

Day: 10.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,548,000 km

• M1: 155,432 km (0.118 R)
• M2: 588,518 km (0.081 R)
• M3: 1,071,869 km (0.1 R)
• M4: 1,562,699 km (0.087 R)
• M5: 2,115,463 km (0.075 R)
• M6: 2,554,683 km (0.109 R)
• M7: 3,329,151 km (0.047 R)
• M8: 3,916,323 km (0.098 R)
• M9: 4,504,392 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.8

Radius: 10.2

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.88 AU - 1.02 AU

Year: 628 Days

Day: 9.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,548,000 km

• M1: 127,158 km (0.112 R)
• M2: 482,004 km (0.029 R)
• M3: 980,764 km (0.083 R)
• M4: 1,306,139 km (0.06 R)
• M5: 1,995,037 km (0.09 R)
• M6: 2,623,947 km (0.118 R)
• M7: 3,073,638 km (0.113 R)
• M8: 3,789,314 km (0.119 R)
• M9: 4,503,345 km (0.093 R)
• M10: 6,140,993 km (0.104 R)
• M11: 7,125,795 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.7

Radius: 10.1

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.97 AU - 1.53 AU

Year: 948 Days

Day: 12.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,548,000 km

• M1: 127,009 km (0.077 R)
• M2: 519,703 km (0.12 R)
• M3: 1,011,431 km (0.08 R)
• M4: 2,285,855 km (0.028 R)
• M5: 3,418,760 km (0.112 R)
• M6: 3,772,410 km (0.1 R)
• M7: 6,613,423 km (0.114 R)
• M8: 7,071,192 km (0.119 R)
• M9: 8,127,353 km (0.066 R)
• M10: 8,924,261 km (0.088 R)
• M11: 9,341,938 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930

Radius: 11.3

Gravity: 7.28 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.04 AU - 1.58 AU

Year: 1017 Days

Day: 6.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 52,548,000 km

• M1: 140,622 km (0.12 R)
• M2: 669,002 km (0.067 R)
• M3: 1,602,941 km (0.12 R)
• M4: 2,030,641 km (0.064 R)
• M5: 2,427,525 km (0.094 R)
• M6: 2,823,660 km (0.113 R)
• M7: 3,685,044 km (0.118 R)
• M8: 4,807,028 km (0.089 R)
• M9: 6,011,142 km (0.116 R)
• M10: 6,554,780 km (0.118 R)
• M11: 6,983,827 km (0.115 R)
• M12: 7,898,618 km (0.098 R)
• M13: 9,035,562 km (0.091 R)
• M14: 10,630,724 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503.3

Radius: 10.6

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 2.5 AU - 2.86 AU

Year: 2976 Days

Day: 8.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 114.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,548,000 km

• M1: 131,796 km (0.106 R)
• M2: 638,484 km (0.086 R)
• M3: 1,267,543 km (0.105 R)
• M4: 1,707,809 km (0.117 R)
• M5: 2,145,233 km (0.067 R)
• M6: 3,163,546 km (0.099 R)
• M7: 3,603,514 km (0.114 R)
• M8: 4,585,474 km (0.106 R)
• M9: 6,259,025 km (0.074 R)
• M10: 7,703,393 km (0.093 R)
• M11: 9,113,502 km (0.1 R)
• M12: 9,643,827 km (0.114 R)
• M13: 11,520,682 km (0.063 R)
• M14: 11,931,926 km (0.107 R)
• M15: 12,352,745 km (0.103 R)
• M16: 14,751,397 km (0.071 R)
• M17: 16,341,323 km (0.114 R)
• M18: 17,660,627 km (0.097 R)
• M19: 18,653,658 km (0.079 R)
• M20: 19,049,643 km (0.044 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 472.1

Radius: 4.3

Gravity: 25.53 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 4.96 AU - 7.7 AU

Year: 10802 Days

Day: 20.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 52,548,000 km

• M1: 53,556 km (0.111 R)
• M2: 260,899 km (0.06 R)
• M3: 534,064 km (0.052 R)
• M4: 757,414 km (0.077 R)
• M5: 1,567,636 km (0.097 R)
• M6: 1,945,969 km (0.049 R)
• M7: 2,218,387 km (0.111 R)
• M8: 2,776,536 km (0.098 R)
• M9: 3,794,400 km (0.066 R)
• M10: 4,386,958 km (0.109 R)
• M11: 4,855,049 km (0.106 R)
• M12: 7,260,284 km (0.119 R)
• M13: 8,168,792 km (0.107 R)
• M14: 8,695,077 km (0.052 R)
• M15: 8,920,820 km (0.096 R)
• M16: 9,718,027 km (0.102 R)
• M17: 9,912,205 km (0.067 R)
• M18: 11,833,940 km (0.075 R)
• M19: 12,111,294 km (0.045 R)
• M20: 15,193,459 km (0.111 R)
• M21: 17,301,592 km (0.038 R)
• M22: 17,803,194 km (0.094 R)
• M23: 22,338,852 km (0.105 R)
• M24: 22,507,598 km (0.117 R)
• M25: 22,933,503 km (0.115 R)
• M26: 28,967,683 km (0.099 R)
• M27: 30,808,335 km (0.118 R)
• M28: 31,227,808 km (0.116 R)
• M29: 33,382,017 km (0.056 R)
• M30: 34,834,014 km (0.089 R)
• M31: 35,748,206 km (0.111 R)
• M32: 36,327,749 km (0.105 R)
• M33: 37,149,490 km (0.115 R)
• M34: 38,465,652 km (0.108 R)
• M35: 38,708,299 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 506.4

Radius: 3.9

Gravity: 33.29 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 6.15 AU - 8.43 AU

Year: 13350 Days

Day: 23.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 52,548,000 km

• M1: 59,839 km (0.118 R)
• M2: 211,831 km (0.089 R)
• M3: 386,262 km (0.117 R)
• M4: 534,663 km (0.117 R)
• M5: 1,140,385 km (0.094 R)
• M6: 1,834,070 km (0.035 R)
• M7: 3,910,339 km (0.098 R)
• M8: 4,490,180 km (0.118 R)
• M9: 5,499,218 km (0.096 R)
• M10: 6,769,752 km (0.114 R)
• M11: 7,430,377 km (0.11 R)
• M12: 8,087,710 km (0.083 R)
• M13: 8,640,923 km (0.043 R)
• M14: 9,218,969 km (0.076 R)
• M15: 10,996,042 km (0.092 R)
• M16: 11,559,278 km (0.044 R)
• M17: 12,379,822 km (0.065 R)
• M18: 12,927,350 km (0.11 R)
• M19: 14,399,693 km (0.052 R)
• M20: 17,672,744 km (0.066 R)
• M21: 17,978,822 km (0.106 R)
• M22: 18,288,340 km (0.093 R)
• M23: 22,108,321 km (0.097 R)
• M24: 22,642,685 km (0.076 R)
• M25: 25,058,242 km (0.064 R)
• M26: 27,845,699 km (0.104 R)
• M27: 28,156,114 km (0.069 R)
• M28: 37,686,247 km (0.116 R)
• M29: 40,530,551 km (0.086 R)
• M30: 46,787,632 km (0.072 R)
• M31: 50,680,617 km (0.053 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: 218 - 16,193 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit