🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.6 AU - 0.72 AU

Year: 346 Days

Day: 25.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 11.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,353,905 km

• M1: 70,461 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.3

Radius: 9.9

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.67 AU - 0.83 AU

Year: 419 Days

Day: 6.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,353,905 km

• M1: 123,269 km (0.081 R)
• M2: 469,737 km (0.026 R)
• M3: 834,756 km (0.032 R)
• M4: 1,154,596 km (0.102 R)
• M5: 1,901,389 km (0.12 R)
• M6: 2,271,943 km (0.061 R)
• M7: 3,064,512 km (0.081 R)
• M8: 3,546,068 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.3

Radius: 13.3

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.72 AU - 0.84 AU

Year: 445 Days

Day: 14.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,353,905 km

• M1: 165,455 km (0.09 R)
• M2: 681,119 km (0.038 R)
• M3: 1,200,822 km (0.055 R)
• M4: 1,660,536 km (0.098 R)
• M5: 2,275,832 km (0.102 R)
• M6: 2,831,588 km (0.113 R)
• M7: 3,428,185 km (0.079 R)
• M8: 3,875,931 km (0.096 R)
• M9: 4,629,306 km (0.071 R)
• M10: 5,444,315 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.6

Radius: 11.6

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.88 AU - 2.26 AU

Year: 1923 Days

Day: 15 Hours

Environment

Temp: -187 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,353,905 km

• M1: 148,999 km (0.083 R)
• M2: 823,686 km (0.116 R)
• M3: 2,133,116 km (0.08 R)
• M4: 3,483,686 km (0.071 R)
• M5: 3,849,452 km (0.078 R)
• M6: 4,371,250 km (0.12 R)
• M7: 5,758,920 km (0.032 R)
• M8: 6,177,494 km (0.102 R)
• M9: 11,378,564 km (0.093 R)
• M10: 12,610,652 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 284.8

Radius: 11.7

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.82 AU - 2.36 AU

Year: 1951 Days

Day: 10.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,353,905 km

• M1: 147,803 km (0.09 R)
• M2: 572,810 km (0.108 R)
• M3: 1,207,255 km (0.1 R)
• M4: 1,613,862 km (0.108 R)
• M5: 2,080,607 km (0.084 R)
• M6: 2,465,074 km (0.086 R)
• M7: 4,017,152 km (0.117 R)
• M8: 4,454,725 km (0.064 R)
• M9: 7,141,653 km (0.05 R)
• M10: 8,082,474 km (0.07 R)
• M11: 10,051,331 km (0.101 R)
• M12: 10,862,002 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.5

Radius: 14.2

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 2.36 AU - 3.74 AU

Year: 3439 Days

Day: 11.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,353,905 km

• M1: 176,525 km (0.046 R)
• M2: 714,180 km (0.097 R)
• M3: 1,649,466 km (0.115 R)
• M4: 2,120,101 km (0.115 R)
• M5: 2,584,303 km (0.071 R)
• M6: 3,439,853 km (0.09 R)
• M7: 6,878,061 km (0.095 R)
• M8: 7,635,475 km (0.109 R)
• M9: 8,123,164 km (0.092 R)
• M10: 9,008,185 km (0.085 R)
• M11: 12,238,901 km (0.1 R)
• M12: 13,153,991 km (0.05 R)
• M13: 14,166,170 km (0.082 R)
• M14: 14,958,889 km (0.096 R)
• M15: 17,515,367 km (0.084 R)
• M16: 18,740,275 km (0.085 R)
• M17: 20,417,117 km (0.065 R)
• M18: 21,497,663 km (0.096 R)
• M19: 22,403,328 km (0.08 R)
• M20: 23,406,980 km (0.1 R)
• M21: 25,044,329 km (0.111 R)
• M22: 26,047,233 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 942.8

Radius: 5.2

Gravity: 34.87 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 6.93 AU - 8.19 AU

Year: 13421 Days

Day: 20.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 57,353,905 km

• M1: 66,272 km (0.087 R)
• M2: 242,498 km (0.046 R)
• M3: 468,391 km (0.116 R)
• M4: 812,765 km (0.113 R)
• M5: 1,041,351 km (0.06 R)
• M6: 1,745,508 km (0.106 R)
• M7: 2,129,226 km (0.109 R)
• M8: 2,414,958 km (0.111 R)
• M9: 3,998,601 km (0.088 R)
• M10: 6,209,808 km (0.113 R)
• M11: 8,263,487 km (0.084 R)
• M12: 8,561,037 km (0.044 R)
• M13: 10,156,947 km (0.065 R)
• M14: 11,941,201 km (0.053 R)
• M15: 13,443,014 km (0.054 R)
• M16: 15,811,597 km (0.104 R)
• M17: 16,347,457 km (0.066 R)
• M18: 18,612,668 km (0.09 R)
• M19: 19,296,480 km (0.066 R)
• M20: 19,470,013 km (0.114 R)
• M21: 19,644,594 km (0.088 R)
• M22: 22,485,607 km (0.103 R)
• M23: 22,677,691 km (0.11 R)
• M24: 25,693,584 km (0.051 R)
• M25: 28,739,845 km (0.114 R)
• M26: 38,204,155 km (0.049 R)
• M27: 47,468,751 km (0.095 R)
• M28: 50,696,175 km (0.064 R)
• M29: 51,358,744 km (0.115 R)
• M30: 56,868,583 km (0.102 R)
• M31: 57,583,811 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 95.1

Radius: 7

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 7.23 AU - 9.37 AU

Year: 15439 Days

Day: 22.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,353,905 km

• M1: 116,238 km (0.108 R)
• M2: 544,237 km (0.087 R)
• M3: 860,637 km (0.12 R)
• M4: 1,308,084 km (0.103 R)
• M5: 2,753,050 km (0.066 R)
• M6: 4,049,315 km (0.114 R)
• M7: 5,618,896 km (0.103 R)
• M8: 8,083,072 km (0.106 R)
• M9: 8,960,464 km (0.112 R)
• M10: 10,622,945 km (0.109 R)
• M11: 14,037,666 km (0.078 R)
• M12: 14,432,006 km (0.102 R)
• M13: 20,394,977 km (0.073 R)
• M14: 20,973,921 km (0.065 R)
• M15: 21,341,183 km (0.073 R)
• M16: 23,008,452 km (0.093 R)
• M17: 23,635,566 km (0.114 R)
• M18: 29,803,187 km (0.069 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 332.1

Radius: 6

Gravity: 9.23 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 7.94 AU - 9.94 AU

Year: 17259 Days

Day: 23.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,353,905 km

• M1: 86,318 km (0.1 R)
• M2: 2,054,577 km (0.091 R)
• M3: 2,578,020 km (0.109 R)
• M4: 3,020,082 km (0.09 R)
• M5: 4,228,085 km (0.08 R)
• M6: 4,558,995 km (0.053 R)
• M7: 4,972,184 km (0.065 R)
• M8: 5,983,765 km (0.063 R)
• M9: 7,770,413 km (0.104 R)
• M10: 8,084,119 km (0.074 R)
• M11: 9,125,620 km (0.067 R)
• M12: 9,374,251 km (0.117 R)
• M13: 16,129,942 km (0.097 R)
• M14: 25,553,560 km (0.117 R)
• M15: 27,260,472 km (0.086 R)
• M16: 29,797,652 km (0.067 R)
• M17: 31,687,223 km (0.078 R)
• M18: 32,951,624 km (0.11 R)
• M19: 38,217,319 km (0.057 R)
• M20: 43,594,764 km (0.113 R)
• M21: 45,157,464 km (0.034 R)
• M22: 49,302,821 km (0.081 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 256.1

Radius: 3.7

Gravity: 18.71 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 7.95 AU - 12.69 AU

Year: 21406 Days

Day: 24.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 57,353,905 km

• M1: 48,919 km (0.094 R)
• M2: 183,856 km (0.08 R)
• M3: 322,683 km (0.109 R)
• M4: 470,934 km (0.103 R)
• M5: 716,275 km (0.081 R)
• M6: 1,640,191 km (0.066 R)
• M7: 2,031,539 km (0.073 R)
• M8: 3,165,790 km (0.098 R)
• M9: 3,471,718 km (0.101 R)
• M10: 4,763,196 km (0.106 R)
• M11: 5,479,920 km (0.117 R)
• M12: 5,770,887 km (0.066 R)
• M13: 8,723,501 km (0.108 R)
• M14: 9,120,234 km (0.041 R)
• M15: 9,528,636 km (0.073 R)
• M16: 10,547,697 km (0.067 R)
• M17: 11,285,364 km (0.105 R)
• M18: 12,548,718 km (0.101 R)
• M19: 14,375,607 km (0.116 R)
• M20: 23,174,505 km (0.036 R)
• M21: 24,126,247 km (0.104 R)
• M22: 28,193,813 km (0.09 R)
• M23: 29,497,858 km (0.051 R)
• M24: 32,459,896 km (0.091 R)
• M25: 34,622,782 km (0.078 R)
• M26: 40,039,122 km (0.105 R)
• M27: 40,174,508 km (0.118 R)
• M28: 42,242,699 km (0.062 R)
• M29: 43,660,139 km (0.111 R)
• M30: 50,432,135 km (0.083 R)
• M31: 52,026,549 km (0.107 R)
• M32: 57,353,879 km (0.08 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: 293 - 10,841 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit