🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.5

Radius: 12.1

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.98 AU - 1.04 AU

Year: 701 Days

Day: 10.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 73,216,771 km

• M1: 159,172 km (0.116 R)
• M2: 547,379 km (0.114 R)
• M3: 1,616,704 km (0.027 R)
• M4: 2,012,989 km (0.106 R)
• M5: 2,989,265 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446.2

Radius: 9.1

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.14 AU - 1.3 AU

Year: 930 Days

Day: 11 Hours

Environment

Temp: -193 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,216,771 km

• M1: 113,246 km (0.06 R)
• M2: 461,809 km (0.108 R)
• M3: 750,233 km (0.099 R)
• M4: 1,109,418 km (0.114 R)
• M5: 1,460,674 km (0.113 R)
• M6: 1,755,381 km (0.11 R)
• M7: 2,424,682 km (0.1 R)
• M8: 2,866,146 km (0.118 R)
• M9: 3,579,428 km (0.118 R)
• M10: 4,092,100 km (0.07 R)
• M11: 4,390,398 km (0.089 R)
• M12: 5,119,688 km (0.07 R)
• M13: 5,751,739 km (0.07 R)
• M14: 6,127,080 km (0.104 R)
• M15: 6,645,885 km (0.108 R)
• M16: 7,015,093 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.9

Radius: 9.1

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 2.33 AU - 2.71 AU

Year: 2761 Days

Day: 8.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 73,216,771 km

• M1: 114,592 km (0.093 R)
• M2: 1,202,468 km (0.079 R)
• M3: 1,675,347 km (0.096 R)
• M4: 2,259,227 km (0.109 R)
• M5: 3,214,260 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.4

Radius: 14

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 3.01 AU - 4.23 AU

Year: 4754 Days

Day: 11.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 73,216,771 km

• M1: 174,730 km (0.097 R)
• M2: 848,968 km (0.041 R)
• M3: 3,230,566 km (0.08 R)
• M4: 3,898,820 km (0.053 R)
• M5: 4,453,080 km (0.118 R)
• M6: 4,923,266 km (0.119 R)
• M7: 6,057,667 km (0.11 R)
• M8: 6,906,335 km (0.034 R)
• M9: 7,431,125 km (0.094 R)
• M10: 8,561,187 km (0.113 R)
• M11: 9,418,233 km (0.066 R)
• M12: 9,977,131 km (0.079 R)
• M13: 11,114,075 km (0.093 R)
• M14: 12,488,281 km (0.114 R)
• M15: 14,083,443 km (0.076 R)
• M16: 16,294,200 km (0.082 R)
• M17: 16,975,170 km (0.089 R)
• M18: 17,999,616 km (0.096 R)
• M19: 21,174,980 km (0.105 R)
• M20: 22,818,462 km (0.096 R)
• M21: 24,545,570 km (0.094 R)
• M22: 29,061,930 km (0.105 R)
• M23: 30,156,537 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.4

Radius: 13.4

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 3.71 AU - 4.85 AU

Year: 6112 Days

Day: 11.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 73,216,771 km

• M1: 166,652 km (0.086 R)
• M2: 673,340 km (0.073 R)
• M3: 1,345,483 km (0.105 R)
• M4: 1,848,581 km (0.061 R)
• M5: 2,656,260 km (0.095 R)
• M6: 3,081,118 km (0.056 R)
• M7: 3,642,409 km (0.096 R)
• M8: 4,271,468 km (0.082 R)
• M9: 5,717,182 km (0.094 R)
• M10: 6,365,838 km (0.09 R)
• M11: 7,772,058 km (0.079 R)
• M12: 8,203,947 km (0.099 R)
• M13: 13,175,982 km (0.066 R)
• M14: 16,131,438 km (0.057 R)
• M15: 18,377,500 km (0.083 R)
• M16: 21,202,357 km (0.086 R)
• M17: 23,239,281 km (0.062 R)
• M18: 25,232,523 km (0.113 R)
• M19: 25,921,571 km (0.107 R)
• M20: 29,556,799 km (0.078 R)
• M21: 31,397,152 km (0.057 R)
• M22: 35,950,762 km (0.049 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 600.7

Radius: 6.9

Gravity: 12.62 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 5.12 AU - 6.78 AU

Year: 10018 Days

Day: 16.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 73,216,771 km

• M1: 86,019 km (0.039 R)
• M2: 425,756 km (0.081 R)
• M3: 776,712 km (0.093 R)
• M4: 2,446,075 km (0.093 R)
• M5: 2,743,326 km (0.064 R)
• M6: 3,912,134 km (0.072 R)
• M7: 4,519,651 km (0.061 R)
• M8: 5,990,647 km (0.093 R)
• M9: 6,911,721 km (0.044 R)
• M10: 12,793,760 km (0.072 R)
• M11: 15,017,233 km (0.067 R)
• M12: 15,477,545 km (0.095 R)
• M13: 21,927,607 km (0.083 R)
• M14: 25,737,566 km (0.109 R)
• M15: 26,396,843 km (0.069 R)
• M16: 29,452,679 km (0.086 R)
• M17: 37,323,322 km (0.056 R)
• M18: 38,289,425 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 186.7

Radius: 6.7

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 4.78 AU - 7.73 AU

Year: 10785 Days

Day: 23.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 73,216,771 km

• M1: 83,326 km (0.101 R)
• M2: 421,118 km (0.106 R)
• M3: 630,256 km (0.066 R)
• M4: 854,054 km (0.088 R)
• M5: 1,092,663 km (0.074 R)
• M6: 1,579,155 km (0.072 R)
• M7: 1,872,217 km (0.059 R)
• M8: 5,626,526 km (0.11 R)
• M9: 5,994,536 km (0.057 R)
• M10: 6,915,910 km (0.116 R)
• M11: 7,266,866 km (0.044 R)
• M12: 7,666,592 km (0.104 R)
• M13: 10,886,387 km (0.086 R)
• M14: 11,604,307 km (0.091 R)
• M15: 12,100,074 km (0.077 R)
• M16: 13,187,202 km (0.071 R)
• M17: 14,507,702 km (0.071 R)
• M18: 17,280,798 km (0.111 R)
• M19: 19,199,690 km (0.116 R)
• M20: 19,963,387 km (0.04 R)
• M21: 21,037,051 km (0.061 R)
• M22: 21,329,814 km (0.107 R)
• M23: 23,299,120 km (0.117 R)
• M24: 24,894,282 km (0.12 R)
• M25: 27,247,607 km (0.049 R)
• M26: 29,653,739 km (0.11 R)
• M27: 30,767,046 km (0.106 R)
• M28: 31,620,203 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 918.9

Radius: 4.9

Gravity: 38.27 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 6.41 AU - 7.49 AU

Year: 12647 Days

Day: 17 Hours

Environment

Temp: -223 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 73,216,771 km

• M1: 109,057 km (0.068 R)
• M2: 299,944 km (0.094 R)
• M3: 458,368 km (0.103 R)
• M4: 773,870 km (0.091 R)
• M5: 1,109,268 km (0.058 R)
• M6: 1,745,209 km (0.061 R)
• M7: 2,488,411 km (0.069 R)
• M8: 2,731,807 km (0.074 R)
• M9: 3,867,404 km (0.086 R)
• M10: 4,103,320 km (0.071 R)
• M11: 4,539,398 km (0.096 R)
• M12: 4,768,731 km (0.035 R)
• M13: 5,726,606 km (0.116 R)
• M14: 7,063,563 km (0.082 R)
• M15: 8,998,162 km (0.108 R)
• M16: 15,067,348 km (0.109 R)
• M17: 15,578,075 km (0.1 R)
• M18: 16,711,129 km (0.098 R)
• M19: 21,518,906 km (0.047 R)
• M20: 22,731,546 km (0.12 R)
• M21: 23,694,657 km (0.117 R)
• M22: 24,285,569 km (0.077 R)
• M23: 24,584,615 km (0.096 R)
• M24: 24,785,375 km (0.068 R)
• M25: 26,116,946 km (0.09 R)
• M26: 27,280,219 km (0.061 R)
• M27: 28,588,303 km (0.056 R)
• M28: 30,977,081 km (0.105 R)
• M29: 31,328,786 km (0.114 R)
• M30: 32,762,532 km (0.031 R)
• M31: 37,193,172 km (0.12 R)
• M32: 39,071,822 km (0.067 R)
• M33: 43,748,401 km (0.118 R)
• M34: 44,339,462 km (0.09 R)
• M35: 45,537,442 km (0.066 R)
• M36: 46,296,951 km (0.057 R)
• M37: 49,579,726 km (0.059 R)
• M38: 55,562,444 km (0.114 R)
• M39: 58,547,670 km (0.108 R)
• M40: 60,170,657 km (0.103 R)
• M41: 60,535,227 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 698.2

Radius: 4.2

Gravity: 39.58 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 6.86 AU - 11.18 AU

Year: 18699 Days

Day: 18.6 Hours

Environment

Temp: -241 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 73,216,771 km

• M1: 55,950 km (0.083 R)
• M2: 314,305 km (0.056 R)
• M3: 457,919 km (0.069 R)
• M4: 637,586 km (0.08 R)
• M5: 954,135 km (0.102 R)
• M6: 1,540,858 km (0.113 R)
• M7: 3,056,584 km (0.102 R)
• M8: 4,805,383 km (0.039 R)
• M9: 7,551,850 km (0.078 R)
• M10: 13,178,376 km (0.094 R)
• M11: 13,961,520 km (0.104 R)
• M12: 15,386,440 km (0.115 R)
• M13: 19,593,731 km (0.078 R)
• M14: 23,159,097 km (0.083 R)
• M15: 27,360,703 km (0.05 R)
• M16: 28,049,152 km (0.09 R)
• M17: 32,679,505 km (0.112 R)
• M18: 34,373,552 km (0.085 R)
• M19: 34,506,245 km (0.043 R)
• M20: 35,309,585 km (0.091 R)
• M21: 37,512,414 km (0.118 R)
• M22: 39,079,003 km (0.086 R)
• M23: 39,368,475 km (0.115 R)
• M24: 42,647,361 km (0.113 R)
• M25: 44,667,979 km (0.067 R)
• M26: 49,572,695 km (0.062 R)
• M27: 51,111,160 km (0.064 R)
• M28: 54,463,050 km (0.074 R)
• M29: 58,902,666 km (0.062 R)
• M30: 63,178,771 km (0.061 R)
• M31: 63,577,449 km (0.103 R)
• M32: 67,656,983 km (0.112 R)
• M33: 68,493,385 km (0.117 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 20,015 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit