🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.8

Radius: 14.1

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.64 AU - 0.76 AU

Year: 412 Days

Day: 14.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 158.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 67,953,063 km

• M1: 175,329 km (0.075 R)
• M2: 761,004 km (0.118 R)
• M3: 1,282,353 km (0.065 R)
• M4: 1,764,357 km (0.099 R)
• M5: 2,387,881 km (0.026 R)
• M6: 3,556,091 km (0.055 R)
• M7: 4,591,159 km (0.117 R)
• M8: 5,513,430 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.2

Radius: 9.1

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.93 AU - 1.23 AU

Year: 789 Days

Day: 7.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 67,953,063 km

• M1: 116,088 km (0.06 R)
• M2: 1,095,655 km (0.119 R)
• M3: 1,640,041 km (0.098 R)
• M4: 1,923,081 km (0.096 R)
• M5: 2,229,756 km (0.109 R)
• M6: 2,707,871 km (0.082 R)
• M7: 3,429,082 km (0.086 R)
• M8: 3,732,467 km (0.064 R)
• M9: 4,393,241 km (0.07 R)
• M10: 4,864,923 km (0.082 R)
• M11: 5,352,761 km (0.104 R)
• M12: 5,909,714 km (0.054 R)
• M13: 6,269,946 km (0.1 R)
• M14: 6,644,838 km (0.059 R)
• M15: 7,055,484 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.1

Radius: 14.6

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.41 AU - 1.45 AU

Year: 1202 Days

Day: 5.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,953,063 km

• M1: 181,612 km (0.05 R)
• M2: 713,283 km (0.033 R)
• M3: 1,699,881 km (0.091 R)
• M4: 2,274,336 km (0.08 R)
• M5: 3,170,128 km (0.063 R)
• M6: 3,630,292 km (0.111 R)
• M7: 5,942,177 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.7

Radius: 10.4

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.77 AU - 4.19 AU

Year: 4563 Days

Day: 7.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,953,063 km

• M1: 129,402 km (0.088 R)
• M2: 891,903 km (0.105 R)
• M3: 1,233,734 km (0.12 R)
• M4: 1,849,030 km (0.057 R)
• M5: 2,312,633 km (0.119 R)
• M6: 4,923,715 km (0.07 R)
• M7: 7,512,655 km (0.087 R)
• M8: 7,936,167 km (0.084 R)
• M9: 8,471,727 km (0.095 R)
• M10: 9,372,007 km (0.113 R)
• M11: 10,783,314 km (0.073 R)
• M12: 12,290,063 km (0.119 R)
• M13: 15,667,684 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693

Radius: 8.9

Gravity: 8.75 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 4.12 AU - 5.02 AU

Year: 6867 Days

Day: 5.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 67,953,063 km

• M1: 110,702 km (0.105 R)
• M2: 413,937 km (0.092 R)
• M3: 1,089,072 km (0.106 R)
• M4: 1,502,112 km (0.111 R)
• M5: 1,838,558 km (0.094 R)
• M6: 2,127,581 km (0.096 R)
• M7: 2,518,630 km (0.103 R)
• M8: 2,977,446 km (0.117 R)
• M9: 3,423,697 km (0.104 R)
• M10: 4,292,412 km (0.078 R)
• M11: 4,722,805 km (0.068 R)
• M12: 5,093,508 km (0.107 R)
• M13: 6,122,592 km (0.105 R)
• M14: 7,062,964 km (0.107 R)
• M15: 8,257,802 km (0.067 R)
• M16: 11,241,981 km (0.104 R)
• M17: 11,904,550 km (0.111 R)
• M18: 12,272,112 km (0.049 R)
• M19: 13,991,141 km (0.076 R)
• M20: 14,697,841 km (0.037 R)
• M21: 15,120,904 km (0.087 R)
• M22: 15,865,004 km (0.104 R)
• M23: 19,591,337 km (0.12 R)
• M24: 20,776,302 km (0.119 R)
• M25: 22,722,121 km (0.099 R)
• M26: 24,363,958 km (0.09 R)
• M27: 24,786,572 km (0.075 R)
• M28: 25,128,104 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 528

Radius: 3.4

Gravity: 45.67 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 6.66 AU - 7.48 AU

Year: 13214 Days

Day: 18.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 67,953,063 km

• M1: 42,785 km (0.106 R)
• M2: 172,337 km (0.103 R)
• M3: 491,279 km (0.117 R)
• M4: 628,760 km (0.075 R)
• M5: 1,048,831 km (0.109 R)
• M6: 1,166,265 km (0.119 R)
• M7: 1,292,376 km (0.031 R)
• M8: 1,399,787 km (0.11 R)
• M9: 1,679,386 km (0.071 R)
• M10: 2,388,180 km (0.099 R)
• M11: 2,921,048 km (0.036 R)
• M12: 3,083,511 km (0.044 R)
• M13: 3,876,679 km (0.108 R)
• M14: 5,462,716 km (0.032 R)
• M15: 6,225,515 km (0.093 R)
• M16: 8,602,476 km (0.106 R)
• M17: 9,279,257 km (0.069 R)
• M18: 10,413,358 km (0.095 R)
• M19: 11,013,545 km (0.115 R)
• M20: 13,076,799 km (0.111 R)
• M21: 13,774,972 km (0.073 R)
• M22: 13,969,599 km (0.12 R)
• M23: 15,245,070 km (0.101 R)
• M24: 15,875,625 km (0.115 R)
• M25: 16,964,698 km (0.074 R)
• M26: 18,729,803 km (0.099 R)
• M27: 19,452,510 km (0.063 R)
• M28: 21,995,973 km (0.098 R)
• M29: 22,619,796 km (0.12 R)
• M30: 24,562,026 km (0.045 R)
• M31: 27,627,735 km (0.12 R)
• M32: 34,148,556 km (0.119 R)
• M33: 35,467,860 km (0.097 R)
• M34: 39,238,026 km (0.055 R)
• M35: 41,623,513 km (0.111 R)
• M36: 45,811,206 km (0.071 R)
• M37: 46,244,891 km (0.101 R)
• M38: 46,390,001 km (0.067 R)
• M39: 51,041,447 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 882.3

Radius: 3.1

Gravity: 91.81 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 6.36 AU - 8.94 AU

Year: 14873 Days

Day: 21.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 67,953,063 km

• M1: 39,195 km (0.092 R)
• M2: 141,819 km (0.079 R)
• M3: 258,655 km (0.102 R)
• M4: 421,567 km (0.116 R)
• M5: 519,254 km (0.118 R)
• M6: 1,086,978 km (0.028 R)
• M7: 1,835,865 km (0.114 R)
• M8: 2,523,866 km (0.108 R)
• M9: 4,685,106 km (0.069 R)
• M10: 5,142,427 km (0.12 R)
• M11: 6,063,650 km (0.107 R)
• M12: 6,779,327 km (0.11 R)
• M13: 10,972,106 km (0.092 R)
• M14: 11,215,053 km (0.043 R)
• M15: 12,222,894 km (0.086 R)
• M16: 12,682,159 km (0.115 R)
• M17: 14,708,014 km (0.112 R)
• M18: 16,539,840 km (0.079 R)
• M19: 17,592,710 km (0.101 R)
• M20: 18,262,459 km (0.051 R)
• M21: 19,920,901 km (0.083 R)
• M22: 21,018,351 km (0.097 R)
• M23: 21,772,175 km (0.102 R)
• M24: 22,252,234 km (0.118 R)
• M25: 24,551,853 km (0.052 R)
• M26: 30,563,144 km (0.045 R)
• M27: 33,016,998 km (0.105 R)
• M28: 34,162,918 km (0.074 R)
• M29: 40,004,864 km (0.077 R)
• M30: 40,869,540 km (0.112 R)
• M31: 47,754,931 km (0.03 R)
• M32: 48,239,629 km (0.112 R)
• M33: 49,054,787 km (0.035 R)
• M34: 50,712,481 km (0.062 R)
• M35: 52,750,453 km (0.107 R)
• M36: 53,268,361 km (0.103 R)
• M37: 53,789,710 km (0.072 R)
• M38: 56,087,982 km (0.111 R)
• M39: 61,258,682 km (0.099 R)
• M40: 62,214,164 km (0.077 R)
• M41: 65,537,331 km (0.091 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 180 - 12,824 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit