🌌 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 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.44

Radius: 0.72

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.43 AU - 0.69 AU

Year: 275 Days

Day: 47.2 Hours

Environment

Temp: -131 °C

Axial Tilt: 44 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932.7

Radius: 14.2

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.78 AU - 1 AU

Year: 551 Days

Day: 13.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,141,372 km

• M1: 176,525 km (0.025 R)
• M2: 618,886 km (0.076 R)
• M3: 1,202,916 km (0.12 R)
• M4: 1,657,993 km (0.064 R)
• M5: 2,249,802 km (0.043 R)
• M6: 2,854,776 km (0.065 R)
• M7: 3,593,790 km (0.066 R)
• M8: 4,081,927 km (0.088 R)
• M9: 4,630,353 km (0.05 R)
• M10: 6,143,237 km (0.097 R)
• M11: 6,598,912 km (0.11 R)
• M12: 7,098,569 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728

Radius: 12

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.99 AU - 1.99 AU

Year: 1842 Days

Day: 12.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 79 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,141,372 km

• M1: 151,393 km (0.108 R)
• M2: 1,405,023 km (0.086 R)
• M3: 2,510,701 km (0.046 R)
• M4: 3,370,440 km (0.072 R)
• M5: 4,658,328 km (0.107 R)
• M6: 6,582,456 km (0.064 R)
• M7: 7,034,241 km (0.102 R)
• M8: 7,620,815 km (0.101 R)
• M9: 9,313,066 km (0.108 R)
• M10: 13,343,232 km (0.086 R)
• M11: 14,463,721 km (0.098 R)
• M12: 15,692,667 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.3

Radius: 12.1

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.42 AU - 3.96 AU

Year: 3738 Days

Day: 5.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 75,141,372 km

• M1: 150,495 km (0.106 R)
• M2: 544,536 km (0.047 R)
• M3: 1,132,306 km (0.06 R)
• M4: 1,966,015 km (0.045 R)
• M5: 4,220,605 km (0.109 R)
• M6: 7,666,741 km (0.119 R)
• M7: 8,531,866 km (0.08 R)
• M8: 9,970,100 km (0.104 R)
• M9: 11,830,499 km (0.103 R)
• M10: 14,366,482 km (0.065 R)
• M11: 16,172,577 km (0.092 R)
• M12: 17,015,561 km (0.1 R)
• M13: 17,593,757 km (0.07 R)
• M14: 23,191,111 km (0.076 R)
• M15: 24,408,538 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.6

Radius: 13.5

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 3.74 AU - 4.76 AU

Year: 5748 Days

Day: 9.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 75,141,372 km

• M1: 167,998 km (0.045 R)
• M2: 600,486 km (0.057 R)
• M3: 1,096,104 km (0.092 R)
• M4: 1,886,280 km (0.058 R)
• M5: 2,363,048 km (0.059 R)
• M6: 2,975,651 km (0.091 R)
• M7: 4,047,370 km (0.091 R)
• M8: 5,530,334 km (0.083 R)
• M9: 6,302,409 km (0.097 R)
• M10: 10,129,122 km (0.031 R)
• M11: 14,782,663 km (0.039 R)
• M12: 16,151,933 km (0.04 R)
• M13: 17,917,337 km (0.06 R)
• M14: 21,828,872 km (0.096 R)
• M15: 23,526,509 km (0.055 R)
• M16: 24,915,376 km (0.093 R)
• M17: 27,602,453 km (0.087 R)
• M18: 28,367,646 km (0.088 R)
• M19: 29,234,416 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.7

Radius: 8.4

Gravity: 12.59 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 4.05 AU - 6.09 AU

Year: 7489 Days

Day: 7.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 75,141,372 km

• M1: 104,419 km (0.107 R)
• M2: 376,837 km (0.033 R)
• M3: 809,175 km (0.114 R)
• M4: 1,197,381 km (0.053 R)
• M5: 1,650,065 km (0.06 R)
• M6: 2,044,853 km (0.072 R)
• M7: 2,483,025 km (0.081 R)
• M8: 3,090,393 km (0.075 R)
• M9: 4,373,195 km (0.045 R)
• M10: 4,801,643 km (0.118 R)
• M11: 5,978,978 km (0.083 R)
• M12: 6,876,715 km (0.108 R)
• M13: 8,195,719 km (0.051 R)
• M14: 8,670,693 km (0.099 R)
• M15: 9,255,471 km (0.084 R)
• M16: 11,220,887 km (0.102 R)
• M17: 14,294,525 km (0.072 R)
• M18: 14,730,154 km (0.103 R)
• M19: 15,562,666 km (0.083 R)
• M20: 16,157,168 km (0.079 R)
• M21: 17,745,150 km (0.11 R)
• M22: 19,892,478 km (0.077 R)
• M23: 20,592,596 km (0.091 R)
• M24: 20,908,995 km (0.073 R)
• M25: 25,961,364 km (0.111 R)
• M26: 28,621,065 km (0.103 R)
• M27: 29,015,405 km (0.089 R)
• M28: 33,485,239 km (0.094 R)
• M29: 35,259,171 km (0.119 R)
• M30: 36,514,596 km (0.093 R)
• M31: 37,446,142 km (0.099 R)
• M32: 40,335,924 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 143.6

Radius: 7

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 6.05 AU - 8.11 AU

Year: 12358 Days

Day: 21.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,141,372 km

• M1: 96,042 km (0.117 R)
• M2: 550,520 km (0.106 R)
• M3: 789,727 km (0.109 R)
• M4: 1,080,396 km (0.041 R)
• M5: 1,924,427 km (0.086 R)
• M6: 2,969,069 km (0.119 R)
• M7: 3,229,070 km (0.092 R)
• M8: 3,614,285 km (0.066 R)
• M9: 3,911,236 km (0.064 R)
• M10: 4,175,127 km (0.059 R)
• M11: 5,954,444 km (0.082 R)
• M12: 6,207,713 km (0.076 R)
• M13: 7,257,741 km (0.097 R)
• M14: 7,620,366 km (0.114 R)
• M15: 12,141,962 km (0.047 R)
• M16: 15,134,368 km (0.065 R)
• M17: 19,126,985 km (0.095 R)
• M18: 28,931,480 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 521.3

Radius: 4.9

Gravity: 21.71 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 6.86 AU - 10.14 AU

Year: 16257 Days

Day: 15.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 75,141,372 km

• M1: 226,790 km (0.04 R)
• M2: 722,259 km (0.074 R)
• M3: 907,012 km (0.1 R)
• M4: 1,086,978 km (0.109 R)
• M5: 1,644,380 km (0.117 R)
• M6: 2,630,379 km (0.098 R)
• M7: 2,811,094 km (0.041 R)
• M8: 3,871,593 km (0.086 R)
• M9: 4,166,151 km (0.069 R)
• M10: 4,507,234 km (0.072 R)
• M11: 6,216,988 km (0.079 R)
• M12: 9,213,284 km (0.099 R)
• M13: 9,953,644 km (0.118 R)
• M14: 13,646,019 km (0.098 R)
• M15: 16,204,890 km (0.08 R)
• M16: 16,583,822 km (0.118 R)
• M17: 18,650,367 km (0.101 R)
• M18: 19,234,696 km (0.063 R)
• M19: 24,853,442 km (0.036 R)
• M20: 31,124,435 km (0.088 R)
• M21: 35,377,054 km (0.116 R)
• M22: 37,972,727 km (0.066 R)
• M23: 38,372,751 km (0.12 R)
• M24: 41,816,046 km (0.065 R)
• M25: 54,040,884 km (0.07 R)
• M26: 54,886,112 km (0.079 R)
• M27: 56,602,748 km (0.069 R)
• M28: 58,354,988 km (0.113 R)
• M29: 59,423,416 km (0.108 R)
• M30: 59,782,600 km (0.048 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 827.3

Radius: 5

Gravity: 33.09 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 8.25 AU - 9.85 AU

Year: 17860 Days

Day: 18 Hours

Environment

Temp: -233 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 75,141,372 km

• M1: 65,075 km (0.073 R)
• M2: 471,532 km (0.09 R)
• M3: 818,749 km (0.104 R)
• M4: 1,087,128 km (0.088 R)
• M5: 1,855,612 km (0.085 R)
• M6: 2,109,629 km (0.105 R)
• M7: 2,364,394 km (0.046 R)
• M8: 3,199,150 km (0.102 R)
• M9: 3,364,755 km (0.102 R)
• M10: 4,085,069 km (0.118 R)
• M11: 5,351,116 km (0.118 R)
• M12: 5,664,523 km (0.094 R)
• M13: 10,558,169 km (0.117 R)
• M14: 10,988,562 km (0.118 R)
• M15: 12,759,053 km (0.107 R)
• M16: 13,893,304 km (0.076 R)
• M17: 16,360,472 km (0.109 R)
• M18: 18,657,248 km (0.051 R)
• M19: 18,925,028 km (0.103 R)
• M20: 19,559,772 km (0.053 R)
• M21: 22,341,245 km (0.07 R)
• M22: 23,461,733 km (0.1 R)
• M23: 27,736,492 km (0.076 R)
• M24: 28,437,059 km (0.052 R)
• M25: 29,509,975 km (0.046 R)
• M26: 30,982,168 km (0.118 R)
• M27: 36,519,683 km (0.054 R)
• M28: 47,484,309 km (0.118 R)
• M29: 49,843,767 km (0.109 R)
• M30: 53,348,246 km (0.103 R)
• M31: 53,527,764 km (0.104 R)
• M32: 54,068,410 km (0.091 R)
• M33: 57,955,412 km (0.114 R)
• M34: 63,020,796 km (0.075 R)
• M35: 66,487,427 km (0.055 R)
• M36: 66,695,219 km (0.086 R)
• M37: 66,903,459 km (0.054 R)
• M38: 74,020,877 km (0.095 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 534 - 15,358 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit