🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.3

Radius: 8.3

Gravity: 11.21 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.52 AU - 0.68 AU

Year: 310 Days

Day: 12.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,475,505 km

• M1: 103,223 km (0.115 R)
• M2: 404,812 km (0.118 R)
• M3: 731,234 km (0.077 R)
• M4: 1,058,106 km (0.046 R)
• M5: 1,445,115 km (0.106 R)
• M6: 2,048,144 km (0.098 R)
• M7: 2,346,443 km (0.077 R)
• M8: 2,908,781 km (0.11 R)
• M9: 3,500,590 km (0.082 R)
• M10: 4,652,793 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.5

Radius: 10.4

Gravity: 5.95 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.59 AU - 0.75 AU

Year: 366 Days

Day: 12.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,475,505 km

• M1: 129,402 km (0.114 R)
• M2: 469,289 km (0.095 R)
• M3: 830,268 km (0.108 R)
• M4: 1,240,466 km (0.11 R)
• M5: 1,786,049 km (0.071 R)
• M6: 2,164,532 km (0.062 R)
• M7: 2,513,244 km (0.114 R)
• M8: 3,086,354 km (0.105 R)
• M9: 4,398,626 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.9

Radius: 10.6

Gravity: 7.96 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 2.21 AU - 2.8 AU

Year: 2636 Days

Day: 11 Hours

Environment

Temp: -215 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 76,475,505 km

• M1: 132,095 km (0.077 R)
• M2: 562,488 km (0.078 R)
• M3: 907,909 km (0.111 R)
• M4: 1,242,560 km (0.069 R)
• M5: 1,672,654 km (0.078 R)
• M6: 2,311,586 km (0.12 R)
• M7: 2,791,047 km (0.083 R)
• M8: 3,141,106 km (0.085 R)
• M9: 3,830,304 km (0.091 R)
• M10: 4,594,749 km (0.049 R)
• M11: 5,848,080 km (0.111 R)
• M12: 7,285,566 km (0.047 R)
• M13: 7,695,165 km (0.114 R)
• M14: 8,254,063 km (0.051 R)
• M15: 8,734,421 km (0.063 R)
• M16: 9,160,925 km (0.097 R)
• M17: 10,055,670 km (0.105 R)
• M18: 10,764,315 km (0.102 R)
• M19: 12,325,219 km (0.079 R)
• M20: 13,792,325 km (0.103 R)
• M21: 14,469,704 km (0.064 R)
• M22: 15,372,827 km (0.119 R)
• M23: 15,734,106 km (0.084 R)
• M24: 18,949,113 km (0.11 R)
• M25: 20,029,809 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619

Radius: 12.6

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 3.45 AU - 3.91 AU

Year: 4708 Days

Day: 13 Hours

Environment

Temp: -226 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,475,505 km

• M1: 165,904 km (0.113 R)
• M2: 571,913 km (0.068 R)
• M3: 1,003,652 km (0.114 R)
• M4: 2,581,162 km (0.102 R)
• M5: 3,684,596 km (0.076 R)
• M6: 4,771,125 km (0.114 R)
• M7: 6,271,143 km (0.113 R)
• M8: 8,174,028 km (0.104 R)
• M9: 9,198,773 km (0.111 R)
• M10: 11,457,103 km (0.113 R)
• M11: 12,063,273 km (0.061 R)
• M12: 18,080,698 km (0.115 R)
• M13: 19,290,795 km (0.111 R)
• M14: 22,013,925 km (0.119 R)
• M15: 25,372,996 km (0.028 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.4

Radius: 13.2

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 4.88 AU - 4.88 AU

Year: 7189 Days

Day: 7.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,475,505 km

• M1: 165,605 km (0.101 R)
• M2: 2,537,479 km (0.108 R)
• M3: 2,981,486 km (0.047 R)
• M4: 3,599,774 km (0.027 R)
• M5: 5,042,795 km (0.06 R)
• M6: 5,554,569 km (0.078 R)
• M7: 7,201,641 km (0.05 R)
• M8: 7,642,806 km (0.088 R)
• M9: 8,692,384 km (0.098 R)
• M10: 9,510,984 km (0.072 R)
• M11: 18,076,509 km (0.071 R)
• M12: 24,027,961 km (0.108 R)
• M13: 25,717,370 km (0.048 R)
• M14: 27,238,930 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 575.6

Radius: 14.6

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 4.97 AU - 6.31 AU

Year: 8932 Days

Day: 8.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,475,505 km

• M1: 208,091 km (0.094 R)
• M2: 716,723 km (0.037 R)
• M3: 1,474,736 km (0.11 R)
• M4: 2,146,580 km (0.114 R)
• M5: 3,410,682 km (0.117 R)
• M6: 4,142,066 km (0.055 R)
• M7: 4,658,029 km (0.102 R)
• M8: 6,364,941 km (0.092 R)
• M9: 7,131,031 km (0.061 R)
• M10: 9,615,852 km (0.095 R)
• M11: 11,182,590 km (0.075 R)
• M12: 13,027,581 km (0.055 R)
• M13: 14,325,043 km (0.099 R)
• M14: 20,387,048 km (0.088 R)
• M15: 25,383,168 km (0.084 R)
• M16: 29,528,525 km (0.053 R)
• M17: 33,240,048 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 918.6

Radius: 5.5

Gravity: 30.37 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 5.86 AU - 7.3 AU

Year: 11256 Days

Day: 18.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 76,475,505 km

• M1: 70,012 km (0.08 R)
• M2: 249,828 km (0.079 R)
• M3: 518,656 km (0.094 R)
• M4: 848,220 km (0.115 R)
• M5: 1,192,893 km (0.053 R)
• M6: 1,476,082 km (0.111 R)
• M7: 1,786,797 km (0.063 R)
• M8: 2,823,510 km (0.089 R)
• M9: 3,328,403 km (0.071 R)
• M10: 4,453,828 km (0.076 R)
• M11: 6,465,470 km (0.116 R)
• M12: 7,469,422 km (0.111 R)
• M13: 8,382,118 km (0.062 R)
• M14: 8,718,414 km (0.069 R)
• M15: 9,624,828 km (0.114 R)
• M16: 10,317,316 km (0.088 R)
• M17: 13,749,241 km (0.112 R)
• M18: 14,695,597 km (0.119 R)
• M19: 17,404,216 km (0.08 R)
• M20: 17,872,757 km (0.086 R)
• M21: 21,658,481 km (0.113 R)
• M22: 22,566,689 km (0.104 R)
• M23: 23,689,870 km (0.089 R)
• M24: 24,265,223 km (0.094 R)
• M25: 25,945,806 km (0.111 R)
• M26: 27,491,900 km (0.085 R)
• M27: 28,880,617 km (0.059 R)
• M28: 33,446,194 km (0.115 R)
• M29: 35,648,873 km (0.106 R)
• M30: 37,816,247 km (0.076 R)
• M31: 48,584,751 km (0.09 R)
• M32: 49,202,141 km (0.079 R)
• M33: 56,342,298 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 527.2

Radius: 5.9

Gravity: 15.15 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 6.77 AU - 10.35 AU

Year: 16701 Days

Day: 19 Hours

Environment

Temp: -224 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 76,475,505 km

• M1: 83,027 km (0.11 R)
• M2: 277,654 km (0.081 R)
• M3: 844,630 km (0.069 R)
• M4: 1,121,685 km (0.084 R)
• M5: 1,626,877 km (0.071 R)
• M6: 1,842,896 km (0.08 R)
• M7: 2,676,156 km (0.094 R)
• M8: 4,747,788 km (0.083 R)
• M9: 6,203,225 km (0.058 R)
• M10: 7,473,610 km (0.063 R)
• M11: 9,372,456 km (0.085 R)
• M12: 9,637,095 km (0.106 R)
• M13: 10,348,732 km (0.098 R)
• M14: 11,450,819 km (0.098 R)
• M15: 13,413,543 km (0.102 R)
• M16: 21,530,574 km (0.12 R)
• M17: 22,648,220 km (0.097 R)
• M18: 23,608,638 km (0.099 R)
• M19: 24,396,421 km (0.075 R)
• M20: 25,816,853 km (0.049 R)
• M21: 27,077,663 km (0.11 R)
• M22: 32,171,172 km (0.051 R)
• M23: 34,500,859 km (0.084 R)
• M24: 37,468,731 km (0.098 R)
• M25: 37,868,008 km (0.072 R)
• M26: 42,017,704 km (0.09 R)
• M27: 44,201,832 km (0.111 R)
• M28: 44,647,634 km (0.053 R)
• M29: 55,056,804 km (0.039 R)
• M30: 59,095,497 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 593

Radius: 7.9

Gravity: 9.5 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 8.38 AU - 11.98 AU

Year: 21660 Days

Day: 15.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 76,475,505 km

• M1: 98,286 km (0.083 R)
• M2: 382,671 km (0.106 R)
• M3: 673,340 km (0.116 R)
• M4: 1,140,983 km (0.068 R)
• M5: 1,535,772 km (0.067 R)
• M6: 1,847,833 km (0.06 R)
• M7: 2,531,196 km (0.113 R)
• M8: 2,868,090 km (0.068 R)
• M9: 4,663,863 km (0.04 R)
• M10: 5,756,825 km (0.116 R)
• M11: 6,965,726 km (0.092 R)
• M12: 8,387,504 km (0.097 R)
• M13: 9,028,979 km (0.094 R)
• M14: 12,598,684 km (0.048 R)
• M15: 13,155,188 km (0.044 R)
• M16: 15,546,510 km (0.039 R)
• M17: 21,365,119 km (0.078 R)
• M18: 36,903,700 km (0.104 R)
• M19: 38,910,855 km (0.114 R)
• M20: 42,210,236 km (0.093 R)
• M21: 46,344,373 km (0.065 R)
• M22: 57,653,972 km (0.118 R)
• M23: 58,799,892 km (0.059 R)
• M24: 66,412,778 km (0.119 R)
• M25: 66,830,754 km (0.119 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: 352 - 16,098 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit