🌌 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 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.7

Radius: 13.9

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.54 AU - 0.7 AU

Year: 326 Days

Day: 6.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 67,569,533 km

• M1: 172,935 km (0.067 R)
• M2: 898,036 km (0.099 R)
• M3: 1,347,278 km (0.078 R)
• M4: 1,794,426 km (0.092 R)
• M5: 2,582,658 km (0.104 R)
• M6: 3,367,298 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.8

Radius: 11.2

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.9 AU - 1.16 AU

Year: 697 Days

Day: 5.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,569,533 km

• M1: 143,614 km (0.051 R)
• M2: 543,339 km (0.112 R)
• M3: 957,726 km (0.107 R)
• M4: 1,361,939 km (0.109 R)
• M5: 1,730,099 km (0.097 R)
• M6: 2,174,704 km (0.093 R)
• M7: 2,622,002 km (0.103 R)
• M8: 3,213,362 km (0.082 R)
• M9: 3,756,851 km (0.085 R)
• M10: 4,435,278 km (0.068 R)
• M11: 4,867,616 km (0.12 R)
• M12: 5,926,320 km (0.042 R)
• M13: 6,549,245 km (0.048 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.9

Radius: 10.2

Gravity: 7.78 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.91 AU - 2.15 AU

Year: 1929 Days

Day: 7.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,569,533 km

• M1: 126,859 km (0.107 R)
• M2: 603,328 km (0.109 R)
• M3: 1,388,867 km (0.058 R)
• M4: 1,708,707 km (0.105 R)
• M5: 2,669,574 km (0.079 R)
• M6: 3,664,250 km (0.078 R)
• M7: 4,246,485 km (0.059 R)
• M8: 4,824,232 km (0.071 R)
• M9: 5,200,172 km (0.09 R)
• M10: 6,526,357 km (0.104 R)
• M11: 7,211,365 km (0.118 R)
• M12: 7,943,797 km (0.094 R)
• M13: 9,385,920 km (0.076 R)
• M14: 10,080,054 km (0.098 R)
• M15: 10,957,894 km (0.082 R)
• M16: 11,299,875 km (0.109 R)
• M17: 13,941,774 km (0.101 R)
• M18: 14,984,172 km (0.079 R)
• M19: 16,719,058 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.3

Radius: 9

Gravity: 8.6 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.76 AU - 5.74 AU

Year: 6904 Days

Day: 11 Hours

Environment

Temp: -224 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 67,569,533 km

• M1: 116,836 km (0.026 R)
• M2: 506,090 km (0.08 R)
• M3: 1,307,635 km (0.107 R)
• M4: 1,600,248 km (0.104 R)
• M5: 2,698,746 km (0.038 R)
• M6: 3,670,833 km (0.076 R)
• M7: 4,527,729 km (0.04 R)
• M8: 5,605,432 km (0.072 R)
• M9: 6,424,929 km (0.071 R)
• M10: 7,247,418 km (0.04 R)
• M11: 8,715,422 km (0.084 R)
• M12: 9,813,471 km (0.063 R)
• M13: 10,467,213 km (0.098 R)
• M14: 11,299,875 km (0.082 R)
• M15: 13,488,941 km (0.1 R)
• M16: 14,893,964 km (0.028 R)
• M17: 15,757,293 km (0.108 R)
• M18: 17,718,970 km (0.095 R)
• M19: 18,199,030 km (0.065 R)
• M20: 19,185,478 km (0.096 R)
• M21: 21,963,511 km (0.031 R)
• M22: 22,919,142 km (0.088 R)
• M23: 23,407,280 km (0.041 R)
• M24: 24,152,427 km (0.079 R)
• M25: 25,429,394 km (0.118 R)
• M26: 29,148,846 km (0.085 R)
• M27: 30,205,156 km (0.038 R)
• M28: 30,890,614 km (0.068 R)
• M29: 31,286,899 km (0.074 R)
• M30: 35,330,380 km (0.032 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.6

Radius: 14.6

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 4.73 AU - 5.71 AU

Year: 7953 Days

Day: 9.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 67,569,533 km

• M1: 181,612 km (0.112 R)
• M2: 748,887 km (0.1 R)
• M3: 1,446,312 km (0.072 R)
• M4: 1,960,929 km (0.068 R)
• M5: 2,599,113 km (0.033 R)
• M6: 3,106,849 km (0.116 R)
• M7: 4,033,458 km (0.057 R)
• M8: 4,604,922 km (0.103 R)
• M9: 5,580,300 km (0.071 R)
• M10: 6,912,768 km (0.064 R)
• M11: 7,816,938 km (0.078 R)
• M12: 13,210,988 km (0.095 R)
• M13: 13,865,329 km (0.097 R)
• M14: 14,416,747 km (0.112 R)
• M15: 18,110,917 km (0.105 R)
• M16: 19,521,924 km (0.107 R)
• M17: 22,228,000 km (0.095 R)
• M18: 24,459,551 km (0.117 R)
• M19: 25,265,884 km (0.101 R)
• M20: 26,742,863 km (0.093 R)
• M21: 30,275,617 km (0.102 R)
• M22: 31,729,858 km (0.092 R)
• M23: 32,581,519 km (0.109 R)
• M24: 34,108,464 km (0.074 R)
• M25: 37,777,352 km (0.109 R)
• M26: 43,111,264 km (0.049 R)
• M27: 43,762,314 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 164.2

Radius: 7.8

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 5.84 AU - 7.96 AU

Year: 12087 Days

Day: 17.1 Hours

Environment

Temp: -240 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,569,533 km

• M1: 96,939 km (0.093 R)
• M2: 752,776 km (0.045 R)
• M3: 1,931,009 km (0.101 R)
• M4: 2,850,887 km (0.119 R)
• M5: 3,187,332 km (0.082 R)
• M6: 6,335,919 km (0.07 R)
• M7: 12,566,670 km (0.115 R)
• M8: 16,706,791 km (0.116 R)
• M9: 29,255,210 km (0.038 R)
• M10: 31,901,447 km (0.1 R)
• M11: 32,390,333 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 402.9

Radius: 6.4

Gravity: 9.84 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 6.41 AU - 7.51 AU

Year: 12245 Days

Day: 23.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 67,569,533 km

• M1: 80,184 km (0.098 R)
• M2: 504,594 km (0.059 R)
• M3: 721,810 km (0.076 R)
• M4: 1,013,226 km (0.097 R)
• M5: 1,394,402 km (0.065 R)
• M6: 1,996,832 km (0.094 R)
• M7: 2,657,606 km (0.111 R)
• M8: 3,082,913 km (0.072 R)
• M9: 3,577,184 km (0.104 R)
• M10: 3,988,279 km (0.061 R)
• M11: 4,430,491 km (0.079 R)
• M12: 5,477,975 km (0.048 R)
• M13: 6,059,611 km (0.103 R)
• M14: 8,802,937 km (0.083 R)
• M15: 9,032,420 km (0.1 R)
• M16: 10,040,560 km (0.12 R)
• M17: 10,291,286 km (0.084 R)
• M18: 13,092,506 km (0.066 R)
• M19: 13,452,289 km (0.062 R)
• M20: 13,880,289 km (0.104 R)
• M21: 14,254,433 km (0.095 R)
• M22: 14,892,917 km (0.094 R)
• M23: 15,219,190 km (0.095 R)
• M24: 16,158,066 km (0.055 R)
• M25: 18,598,306 km (0.116 R)
• M26: 20,381,812 km (0.119 R)
• M27: 23,485,220 km (0.051 R)
• M28: 25,565,079 km (0.081 R)
• M29: 26,127,268 km (0.079 R)
• M30: 27,179,240 km (0.09 R)
• M31: 28,759,443 km (0.047 R)
• M32: 29,265,532 km (0.103 R)
• M33: 29,880,679 km (0.115 R)
• M34: 31,456,243 km (0.057 R)
• M35: 35,346,386 km (0.086 R)
• M36: 39,669,915 km (0.1 R)
• M37: 43,664,776 km (0.116 R)
• M38: 44,602,605 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 667.2

Radius: 3.3

Gravity: 61.27 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 8.35 AU - 9.99 AU

Year: 18518 Days

Day: 21.5 Hours

Environment

Temp: -240 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,569,533 km

• M1: 40,990 km (0.112 R)
• M2: 1,200,673 km (0.083 R)
• M3: 3,085,007 km (0.11 R)
• M4: 3,757,151 km (0.103 R)
• M5: 4,159,419 km (0.109 R)
• M6: 4,454,277 km (0.073 R)
• M7: 4,797,903 km (0.039 R)
• M8: 6,786,208 km (0.118 R)
• M9: 9,994,035 km (0.073 R)
• M10: 12,019,890 km (0.06 R)
• M11: 12,282,733 km (0.069 R)
• M12: 14,973,251 km (0.118 R)
• M13: 16,294,649 km (0.117 R)
• M14: 24,183,992 km (0.115 R)
• M15: 26,657,443 km (0.065 R)
• M16: 31,974,301 km (0.104 R)
• M17: 37,396,177 km (0.117 R)
• M18: 54,717,516 km (0.039 R)
• M19: 55,438,577 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 432.8

Radius: 4.4

Gravity: 22.36 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 9.87 AU - 10.11 AU

Year: 21056 Days

Day: 16.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,569,533 km

• M1: 58,194 km (0.078 R)
• M2: 260,599 km (0.097 R)
• M3: 876,195 km (0.102 R)
• M4: 1,023,549 km (0.1 R)
• M5: 2,225,867 km (0.064 R)
• M6: 2,684,983 km (0.103 R)
• M7: 3,075,283 km (0.104 R)
• M8: 3,474,560 km (0.06 R)
• M9: 4,880,182 km (0.096 R)
• M10: 5,573,867 km (0.1 R)
• M11: 9,169,601 km (0.107 R)
• M12: 10,568,192 km (0.113 R)
• M13: 13,710,346 km (0.098 R)
• M14: 19,999,141 km (0.049 R)
• M15: 21,850,415 km (0.05 R)
• M16: 22,719,578 km (0.076 R)
• M17: 25,996,669 km (0.066 R)
• M18: 31,239,177 km (0.074 R)
• M19: 43,751,244 km (0.048 R)
• M20: 48,782,519 km (0.115 R)
• M21: 50,597,141 km (0.109 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 510 - 17,821 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit