🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.8

Radius: 12.8

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.67 AU - 0.67 AU

Year: 372 Days

Day: 6 Hours

Environment

Temp: -164 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 77,476,715 km

• M1: 159,172 km (0.047 R)
• M2: 582,833 km (0.088 R)
• M3: 1,024,446 km (0.059 R)
• M4: 1,610,571 km (0.103 R)
• M5: 2,097,661 km (0.079 R)
• M6: 2,647,434 km (0.066 R)
• M7: 3,240,888 km (0.09 R)
• M8: 3,910,189 km (0.045 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.6

Radius: 10.6

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.12 AU - 1.68 AU

Year: 1124 Days

Day: 5.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 77,476,715 km

• M1: 193,280 km (0.112 R)
• M2: 920,775 km (0.113 R)
• M3: 1,253,032 km (0.092 R)
• M4: 2,037,523 km (0.036 R)
• M5: 2,462,830 km (0.11 R)
• M6: 3,089,046 km (0.103 R)
• M7: 3,818,486 km (0.117 R)
• M8: 4,203,700 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.3

Radius: 11.8

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.29 AU - 1.81 AU

Year: 1309 Days

Day: 7.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,476,715 km

• M1: 146,905 km (0.102 R)
• M2: 572,661 km (0.11 R)
• M3: 1,276,219 km (0.101 R)
• M4: 2,007,753 km (0.083 R)
• M5: 2,855,823 km (0.106 R)
• M6: 3,470,970 km (0.049 R)
• M7: 4,492,274 km (0.113 R)
• M8: 5,198,975 km (0.09 R)
• M9: 5,800,807 km (0.108 R)
• M10: 6,365,090 km (0.109 R)
• M11: 7,010,156 km (0.117 R)
• M12: 8,231,174 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.8

Radius: 13.9

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.24 AU - 3.24 AU

Year: 3076 Days

Day: 10.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 77,476,715 km

• M1: 173,085 km (0.095 R)
• M2: 711,487 km (0.116 R)
• M3: 1,148,762 km (0.062 R)
• M4: 1,822,850 km (0.06 R)
• M5: 2,396,857 km (0.114 R)
• M6: 3,055,537 km (0.115 R)
• M7: 3,553,398 km (0.101 R)
• M8: 4,127,106 km (0.104 R)
• M9: 4,931,045 km (0.069 R)
• M10: 5,514,626 km (0.105 R)
• M11: 8,823,881 km (0.067 R)
• M12: 9,532,975 km (0.102 R)
• M13: 10,119,548 km (0.074 R)
• M14: 10,605,891 km (0.065 R)
• M15: 12,944,405 km (0.116 R)
• M16: 16,424,500 km (0.119 R)
• M17: 17,211,684 km (0.082 R)
• M18: 17,730,938 km (0.106 R)
• M19: 19,787,460 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.6

Radius: 15

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 2.97 AU - 4.11 AU

Year: 4517 Days

Day: 11.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 77,476,715 km

• M1: 186,549 km (0.117 R)
• M2: 667,655 km (0.081 R)
• M3: 1,177,485 km (0.053 R)
• M4: 1,816,567 km (0.079 R)
• M5: 3,439,853 km (0.038 R)
• M6: 4,550,767 km (0.097 R)
• M7: 5,546,341 km (0.085 R)
• M8: 6,811,041 km (0.116 R)
• M9: 8,005,580 km (0.115 R)
• M10: 9,741,813 km (0.105 R)
• M11: 10,244,612 km (0.04 R)
• M12: 13,791,577 km (0.108 R)
• M13: 15,416,061 km (0.073 R)
• M14: 16,042,576 km (0.102 R)
• M15: 16,804,927 km (0.105 R)
• M16: 18,913,509 km (0.035 R)
• M17: 19,500,082 km (0.115 R)
• M18: 20,985,141 km (0.065 R)
• M19: 21,897,388 km (0.11 R)
• M20: 26,779,216 km (0.081 R)
• M21: 27,852,730 km (0.048 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.9

Radius: 9.8

Gravity: 9.02 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 3.07 AU - 4.07 AU

Year: 4575 Days

Day: 9.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 77,476,715 km

• M1: 122,221 km (0.106 R)
• M2: 685,757 km (0.059 R)
• M3: 1,447,359 km (0.092 R)
• M4: 2,157,949 km (0.107 R)
• M5: 2,592,980 km (0.109 R)
• M6: 3,406,643 km (0.077 R)
• M7: 4,789,077 km (0.049 R)
• M8: 6,842,158 km (0.114 R)
• M9: 7,462,091 km (0.104 R)
• M10: 10,146,924 km (0.098 R)
• M11: 11,609,692 km (0.088 R)
• M12: 14,169,162 km (0.12 R)
• M13: 15,005,115 km (0.112 R)
• M14: 15,814,739 km (0.028 R)
• M15: 16,714,121 km (0.07 R)
• M16: 18,483,565 km (0.062 R)
• M17: 20,514,506 km (0.041 R)
• M18: 21,875,248 km (0.074 R)
• M19: 28,442,894 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.1

Radius: 10.2

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 4.17 AU - 4.35 AU

Year: 5964 Days

Day: 5.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 77,476,715 km

• M1: 126,859 km (0.083 R)
• M2: 450,888 km (0.112 R)
• M3: 934,687 km (0.11 R)
• M4: 2,100,653 km (0.085 R)
• M5: 2,768,907 km (0.089 R)
• M6: 3,282,925 km (0.108 R)
• M7: 3,633,283 km (0.071 R)
• M8: 4,228,384 km (0.055 R)
• M9: 4,596,843 km (0.104 R)
• M10: 5,640,289 km (0.102 R)
• M11: 6,803,711 km (0.036 R)
• M12: 7,343,909 km (0.06 R)
• M13: 8,120,172 km (0.107 R)
• M14: 8,913,041 km (0.11 R)
• M15: 11,381,556 km (0.105 R)
• M16: 15,971,817 km (0.11 R)
• M17: 16,585,467 km (0.104 R)
• M18: 17,389,107 km (0.115 R)
• M19: 19,260,875 km (0.039 R)
• M20: 19,638,161 km (0.093 R)
• M21: 22,626,528 km (0.052 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 287

Radius: 3.6

Gravity: 22.15 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 5.98 AU - 7.76 AU

Year: 12213 Days

Day: 21.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 77,476,715 km

• M1: 44,730 km (0.103 R)
• M2: 159,471 km (0.116 R)
• M3: 739,612 km (0.112 R)
• M4: 1,095,655 km (0.1 R)
• M5: 2,051,735 km (0.112 R)
• M6: 2,804,661 km (0.116 R)
• M7: 5,009,733 km (0.057 R)
• M8: 8,452,130 km (0.054 R)
• M9: 9,020,303 km (0.043 R)
• M10: 9,474,332 km (0.118 R)
• M11: 10,086,936 km (0.045 R)
• M12: 10,526,305 km (0.118 R)
• M13: 11,390,980 km (0.039 R)
• M14: 13,492,681 km (0.095 R)
• M15: 15,580,169 km (0.108 R)
• M16: 27,374,914 km (0.096 R)
• M17: 27,751,751 km (0.12 R)
• M18: 29,392,541 km (0.05 R)
• M19: 32,443,739 km (0.078 R)
• M20: 35,253,337 km (0.115 R)
• M21: 39,405,126 km (0.058 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 825.4

Radius: 6.9

Gravity: 17.34 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 5.79 AU - 8.09 AU

Year: 12400 Days

Day: 22.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 77,476,715 km

• M1: 87,216 km (0.057 R)
• M2: 345,122 km (0.116 R)
• M3: 570,417 km (0.052 R)
• M4: 1,026,541 km (0.089 R)
• M5: 1,308,383 km (0.087 R)
• M6: 1,610,421 km (0.11 R)
• M7: 2,437,398 km (0.076 R)
• M8: 2,760,530 km (0.111 R)
• M9: 3,736,356 km (0.032 R)
• M10: 4,694,830 km (0.111 R)
• M11: 5,770,588 km (0.106 R)
• M12: 6,189,163 km (0.067 R)
• M13: 6,425,977 km (0.104 R)
• M14: 8,887,460 km (0.111 R)
• M15: 9,497,670 km (0.052 R)
• M16: 11,496,596 km (0.115 R)
• M17: 11,794,745 km (0.099 R)
• M18: 16,081,472 km (0.029 R)
• M19: 17,140,774 km (0.098 R)
• M20: 23,907,535 km (0.071 R)
• M21: 29,623,670 km (0.063 R)
• M22: 34,433,391 km (0.03 R)
• M23: 36,829,051 km (0.094 R)
• M24: 38,397,884 km (0.095 R)
• M25: 38,930,602 km (0.091 R)
• M26: 42,230,881 km (0.028 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 859.7

Radius: 7.1

Gravity: 17.05 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 8.27 AU - 9.75 AU

Year: 18343 Days

Day: 16.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 77,476,715 km

• M1: 88,562 km (0.053 R)
• M2: 329,115 km (0.111 R)
• M3: 570,417 km (0.037 R)
• M4: 1,226,403 km (0.115 R)
• M5: 1,464,264 km (0.081 R)
• M6: 1,956,291 km (0.092 R)
• M7: 3,023,822 km (0.113 R)
• M8: 3,945,045 km (0.077 R)
• M9: 4,368,407 km (0.106 R)
• M10: 4,857,742 km (0.105 R)
• M11: 5,699,828 km (0.083 R)
• M12: 8,329,909 km (0.069 R)
• M13: 9,304,838 km (0.099 R)
• M14: 10,782,416 km (0.106 R)
• M15: 12,546,923 km (0.048 R)
• M16: 14,120,543 km (0.076 R)
• M17: 14,800,615 km (0.083 R)
• M18: 17,310,718 km (0.102 R)
• M19: 17,827,279 km (0.064 R)
• M20: 20,951,182 km (0.11 R)
• M21: 23,888,835 km (0.07 R)
• M22: 31,194,298 km (0.089 R)
• M23: 32,476,052 km (0.114 R)
• M24: 33,129,944 km (0.076 R)
• M25: 38,534,317 km (0.07 R)
• M26: 41,674,376 km (0.097 R)
• M27: 42,446,301 km (0.109 R)
• M28: 43,385,327 km (0.119 R)
• M29: 48,288,547 km (0.111 R)
• M30: 58,984,645 km (0.072 R)
• M31: 64,160,881 km (0.118 R)
• M32: 67,069,812 km (0.084 R)
• M33: 70,500,390 km (0.094 R)
• M34: 72,037,359 km (0.103 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: 286 - 11,142 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit