🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.57 AU - 0.65 AU

Year: 303 Days

Day: 25.2 Hours

Environment

Temp: -133 °C

Axial Tilt: 34.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.51 AU - 0.83 AU

Year: 349 Days

Day: 27.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 13.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 7,936,836 km

• M1: 284,236 km (0.063 R)
• M2: 403,166 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.4

Radius: 8

Gravity: 12.35 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.6 AU - 0.76 AU

Year: 357 Days

Day: 7.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 7,936,836 km

• M1: 99,632 km (0.081 R)
• M2: 155,731 km (0.12 R)
• M3: 222,751 km (0.086 R)
• M4: 281,394 km (0.12 R)
• M5: 333,005 km (0.119 R)
• M6: 391,647 km (0.065 R)
• M7: 474,225 km (0.117 R)
• M8: 524,939 km (0.085 R)
• M9: 610,359 km (0.093 R)
• M10: 689,197 km (0.071 R)
• M11: 755,768 km (0.102 R)
• M12: 837,150 km (0.079 R)
• M13: 925,861 km (0.089 R)
• M14: 1,067,381 km (0.096 R)
• M15: 1,122,283 km (0.081 R)
• M16: 1,206,507 km (0.109 R)
• M17: 1,356,853 km (0.104 R)
• M18: 1,462,170 km (0.108 R)
• M19: 1,601,744 km (0.098 R)
• M20: 1,708,108 km (0.081 R)
• M21: 1,984,117 km (0.11 R)
• M22: 2,144,934 km (0.041 R)
• M23: 2,221,080 km (0.082 R)
• M24: 2,400,298 km (0.093 R)
• M25: 2,455,051 km (0.094 R)
• M26: 2,510,252 km (0.056 R)
• M27: 2,565,753 km (0.074 R)
• M28: 2,627,986 km (0.113 R)
• M29: 2,747,664 km (0.09 R)
• M30: 2,830,541 km (0.074 R)
• M31: 2,888,436 km (0.11 R)
• M32: 3,190,623 km (0.116 R)
• M33: 3,379,565 km (0.12 R)
• M34: 3,489,221 km (0.071 R)
• M35: 3,565,216 km (0.101 R)
• M36: 3,627,898 km (0.099 R)
• M37: 3,683,848 km (0.094 R)
• M38: 4,142,365 km (0.113 R)
• M39: 4,596,245 km (0.096 R)
• M40: 4,687,350 km (0.091 R)
• M41: 4,848,317 km (0.115 R)
• M42: 5,018,859 km (0.084 R)
• M43: 5,089,320 km (0.09 R)
• M44: 5,183,566 km (0.084 R)
• M45: 5,238,917 km (0.105 R)
• M46: 5,318,204 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.3

Radius: 10.5

Gravity: 8.86 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.8 AU - 0.88 AU

Year: 489 Days

Day: 5.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (49)

Outer Limit: 7,936,836 km

• M1: 160,369 km (0.087 R)
• M2: 227,090 km (0.086 R)
• M3: 328,367 km (0.107 R)
• M4: 432,637 km (0.067 R)
• M5: 509,830 km (0.081 R)
• M6: 579,991 km (0.102 R)
• M7: 717,621 km (0.11 R)
• M8: 822,489 km (0.083 R)
• M9: 902,225 km (0.086 R)
• M10: 984,803 km (0.114 R)
• M11: 1,119,441 km (0.096 R)
• M12: 1,191,996 km (0.114 R)
• M13: 1,353,861 km (0.039 R)
• M14: 1,468,154 km (0.089 R)
• M15: 1,535,772 km (0.114 R)
• M16: 1,910,215 km (0.066 R)
• M17: 1,998,179 km (0.114 R)
• M18: 2,157,052 km (0.078 R)
• M19: 2,248,755 km (0.098 R)
• M20: 2,458,192 km (0.082 R)
• M21: 2,554,234 km (0.07 R)
• M22: 2,880,806 km (0.097 R)
• M23: 3,005,870 km (0.079 R)
• M24: 3,076,929 km (0.108 R)
• M25: 3,350,843 km (0.118 R)
• M26: 3,499,094 km (0.11 R)
• M27: 3,599,026 km (0.067 R)
• M28: 3,733,963 km (0.099 R)
• M29: 3,896,426 km (0.087 R)
• M30: 4,069,960 km (0.115 R)
• M31: 4,148,798 km (0.064 R)
• M32: 4,254,863 km (0.093 R)
• M33: 4,326,071 km (0.065 R)
• M34: 4,487,787 km (0.072 R)
• M35: 4,734,174 km (0.111 R)
• M36: 4,826,476 km (0.101 R)
• M37: 4,947,501 km (0.067 R)
• M38: 5,268,837 km (0.095 R)
• M39: 5,412,750 km (0.101 R)
• M40: 5,665,271 km (0.036 R)
• M41: 5,951,602 km (0.066 R)
• M42: 6,061,556 km (0.045 R)
• M43: 6,151,913 km (0.098 R)
• M44: 6,232,696 km (0.072 R)
• M45: 6,415,654 km (0.115 R)
• M46: 6,548,796 km (0.116 R)
• M47: 6,703,780 km (0.11 R)
• M48: 6,891,226 km (0.051 R)
• M49: 7,143,897 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.3

Radius: 15

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.75 AU - 0.97 AU

Year: 507 Days

Day: 7.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 7,936,836 km

• M1: 187,895 km (0.079 R)
• M2: 315,203 km (0.05 R)
• M3: 411,993 km (0.105 R)
• M4: 512,672 km (0.109 R)
• M5: 701,165 km (0.118 R)
• M6: 909,705 km (0.085 R)
• M7: 1,091,466 km (0.056 R)
• M8: 1,201,720 km (0.114 R)
• M9: 1,323,792 km (0.096 R)
• M10: 1,438,533 km (0.073 R)
• M11: 1,589,178 km (0.093 R)
• M12: 1,691,354 km (0.085 R)
• M13: 1,889,720 km (0.112 R)
• M14: 2,033,933 km (0.043 R)
• M15: 2,150,170 km (0.116 R)
• M16: 2,250,401 km (0.08 R)
• M17: 2,375,614 km (0.098 R)
• M18: 2,546,455 km (0.032 R)
• M19: 2,672,416 km (0.055 R)
• M20: 2,780,725 km (0.118 R)
• M21: 2,885,444 km (0.113 R)
• M22: 3,052,844 km (0.102 R)
• M23: 3,228,920 km (0.118 R)
• M24: 3,328,702 km (0.064 R)
• M25: 3,424,295 km (0.059 R)
• M26: 3,634,630 km (0.119 R)
• M27: 3,860,523 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.5

Radius: 10.2

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 2.06 AU - 2.38 AU

Year: 2103 Days

Day: 12.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (62)

Outer Limit: 7,936,836 km

• M1: 241,750 km (0.088 R)
• M2: 373,995 km (0.036 R)
• M3: 529,576 km (0.097 R)
• M4: 605,572 km (0.044 R)
• M5: 866,620 km (0.113 R)
• M6: 958,922 km (0.047 R)
• M7: 1,063,491 km (0.095 R)
• M8: 1,303,895 km (0.115 R)
• M9: 1,401,283 km (0.077 R)
• M10: 1,480,869 km (0.08 R)
• M11: 1,562,101 km (0.079 R)
• M12: 1,739,823 km (0.062 R)
• M13: 1,869,375 km (0.069 R)
• M14: 1,935,497 km (0.068 R)
• M15: 2,024,807 km (0.119 R)
• M16: 2,149,871 km (0.034 R)
• M17: 2,219,284 km (0.053 R)
• M18: 2,553,037 km (0.06 R)
• M19: 2,738,539 km (0.112 R)
• M20: 2,839,218 km (0.026 R)
• M21: 3,201,694 km (0.12 R)
• M22: 3,294,744 km (0.091 R)
• M23: 3,415,619 km (0.091 R)
• M24: 3,565,366 km (0.045 R)
• M25: 3,675,769 km (0.08 R)
• M26: 3,745,332 km (0.088 R)
• M27: 4,244,391 km (0.096 R)
• M28: 4,628,857 km (0.114 R)
• M29: 5,102,035 km (0.112 R)
• M30: 5,415,593 km (0.067 R)
• M31: 5,670,956 km (0.052 R)
• M32: 5,751,589 km (0.112 R)
• M33: 6,160,440 km (0.058 R)
• M34: 6,243,318 km (0.082 R)
• M35: 6,309,889 km (0.082 R)
• M36: 6,885,691 km (0.11 R)
• M37: 7,092,884 km (0.07 R)
• M38: 8,105,362 km (0.115 R)
• M39: 8,251,071 km (0.1 R)
• M40: 8,656,331 km (0.086 R)
• M41: 8,749,381 km (0.046 R)
• M42: 8,898,829 km (0.068 R)
• M43: 9,162,570 km (0.045 R)
• M44: 9,524,597 km (0.102 R)
• M45: 9,736,428 km (0.066 R)
• M46: 9,871,963 km (0.069 R)
• M47: 10,008,098 km (0.079 R)
• M48: 10,479,929 km (0.09 R)
• M49: 10,838,515 km (0.071 R)
• M50: 10,978,988 km (0.114 R)
• M51: 11,100,012 km (0.098 R)
• M52: 11,241,682 km (0.069 R)
• M53: 11,424,640 km (0.06 R)
• M54: 11,567,805 km (0.082 R)
• M55: 11,876,276 km (0.038 R)
• M56: 12,042,030 km (0.111 R)
• M57: 12,417,521 km (0.103 R)
• M58: 12,585,818 km (0.098 R)
• M59: 13,308,975 km (0.078 R)
• M60: 13,697,181 km (0.103 R)
• M61: 14,330,728 km (0.105 R)
• M62: 14,839,959 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22

Radius: 9.4

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.99 AU - 3.55 AU

Year: 3760 Days

Day: 12.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 7,936,836 km

• M1: 124,765 km (0.078 R)
• M2: 201,658 km (0.101 R)
• M3: 353,201 km (0.075 R)
• M4: 631,453 km (0.086 R)
• M5: 704,157 km (0.107 R)
• M6: 780,003 km (0.091 R)
• M7: 864,077 km (0.115 R)
• M8: 1,007,691 km (0.071 R)
• M9: 1,177,634 km (0.099 R)
• M10: 1,244,654 km (0.073 R)
• M11: 1,440,627 km (0.083 R)
• M12: 1,519,166 km (0.099 R)
• M13: 1,606,083 km (0.09 R)
• M14: 1,694,645 km (0.057 R)
• M15: 1,876,855 km (0.118 R)
• M16: 1,970,503 km (0.103 R)
• M17: 2,080,458 km (0.057 R)
• M18: 2,477,490 km (0.053 R)
• M19: 2,548,699 km (0.053 R)
• M20: 3,358,921 km (0.037 R)
• M21: 3,446,735 km (0.08 R)
• M22: 3,796,794 km (0.055 R)
• M23: 4,073,849 km (0.111 R)
• M24: 4,243,344 km (0.101 R)
• M25: 4,405,508 km (0.093 R)
• M26: 5,135,246 km (0.103 R)
• M27: 5,257,168 km (0.107 R)
• M28: 5,524,649 km (0.097 R)
• M29: 5,618,298 km (0.047 R)
• M30: 6,105,089 km (0.071 R)
• M31: 6,212,650 km (0.108 R)
• M32: 6,860,558 km (0.092 R)
• M33: 7,051,296 km (0.093 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: 351 - 19,380 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit