🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.5

Radius: 12.3

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.58 AU - 0.84 AU

Year: 380 Days

Day: 9.7 Hours

Environment

Temp: -133 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,425,475 km

• M1: 153,039 km (0.075 R)
• M2: 725,400 km (0.084 R)
• M3: 1,166,714 km (0.065 R)
• M4: 1,672,953 km (0.039 R)
• M5: 2,076,867 km (0.075 R)
• M6: 2,802,866 km (0.108 R)
• M7: 3,324,513 km (0.077 R)
• M8: 3,787,968 km (0.109 R)
• M9: 4,831,712 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.5

Radius: 11.4

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.74 AU - 0.88 AU

Year: 464 Days

Day: 7.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,425,475 km

• M1: 141,819 km (0.112 R)
• M2: 511,326 km (0.062 R)
• M3: 940,372 km (0.05 R)
• M4: 1,382,584 km (0.044 R)
• M5: 1,860,100 km (0.108 R)
• M6: 2,298,422 km (0.077 R)
• M7: 2,733,153 km (0.119 R)
• M8: 3,142,752 km (0.101 R)
• M9: 3,783,031 km (0.056 R)
• M10: 4,479,409 km (0.093 R)
• M11: 5,099,642 km (0.046 R)
• M12: 5,521,957 km (0.065 R)
• M13: 6,003,063 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.8

Radius: 9.1

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.21 AU - 1.51 AU

Year: 1008 Days

Day: 6.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,425,475 km

• M1: 113,246 km (0.026 R)
• M2: 432,787 km (0.081 R)
• M3: 819,348 km (0.116 R)
• M4: 1,390,512 km (0.068 R)
• M5: 1,947,914 km (0.088 R)
• M6: 2,299,618 km (0.094 R)
• M7: 2,682,140 km (0.106 R)
• M8: 3,382,707 km (0.067 R)
• M9: 3,879,522 km (0.1 R)
• M10: 5,457,031 km (0.098 R)
• M11: 7,353,783 km (0.041 R)
• M12: 8,139,022 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.1

Radius: 8.4

Gravity: 8.8 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.93 AU - 2.01 AU

Year: 1758 Days

Day: 5.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,425,475 km

• M1: 104,569 km (0.104 R)
• M2: 392,096 km (0.094 R)
• M3: 687,701 km (0.08 R)
• M4: 1,294,321 km (0.112 R)
• M5: 1,933,104 km (0.043 R)
• M6: 2,220,182 km (0.118 R)
• M7: 2,670,322 km (0.091 R)
• M8: 2,954,109 km (0.119 R)
• M9: 3,633,583 km (0.057 R)
• M10: 4,298,096 km (0.097 R)
• M11: 5,041,299 km (0.039 R)
• M12: 5,343,935 km (0.039 R)
• M13: 6,276,079 km (0.059 R)
• M14: 7,123,701 km (0.09 R)
• M15: 7,729,722 km (0.104 R)
• M16: 11,844,262 km (0.091 R)
• M17: 13,460,966 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 451.8

Radius: 10.4

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.74 AU - 2.3 AU

Year: 1825 Days

Day: 6.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 39,425,475 km

• M1: 129,402 km (0.094 R)
• M2: 484,847 km (0.109 R)
• M3: 830,567 km (0.117 R)
• M4: 1,332,917 km (0.101 R)
• M5: 2,540,321 km (0.054 R)
• M6: 2,958,597 km (0.061 R)
• M7: 3,550,107 km (0.12 R)
• M8: 5,196,581 km (0.096 R)
• M9: 5,672,003 km (0.117 R)
• M10: 6,810,593 km (0.083 R)
• M11: 7,327,603 km (0.094 R)
• M12: 8,646,159 km (0.113 R)
• M13: 9,598,499 km (0.114 R)
• M14: 11,602,063 km (0.106 R)
• M15: 12,265,230 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.4

Radius: 12.8

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 4.23 AU - 5.61 AU

Year: 6939 Days

Day: 13.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 39,425,475 km

• M1: 159,322 km (0.05 R)
• M2: 622,178 km (0.092 R)
• M3: 1,037,162 km (0.084 R)
• M4: 2,343,600 km (0.064 R)
• M5: 4,303,632 km (0.114 R)
• M6: 5,473,337 km (0.046 R)
• M7: 5,996,631 km (0.096 R)
• M8: 7,690,527 km (0.11 R)
• M9: 8,648,253 km (0.109 R)
• M10: 9,872,113 km (0.105 R)
• M11: 12,218,705 km (0.08 R)
• M12: 12,774,312 km (0.056 R)
• M13: 13,876,698 km (0.08 R)
• M14: 14,543,157 km (0.098 R)
• M15: 16,270,115 km (0.102 R)
• M16: 20,358,475 km (0.029 R)
• M17: 21,860,886 km (0.101 R)
• M18: 22,515,228 km (0.089 R)
• M19: 23,014,436 km (0.118 R)
• M20: 29,695,626 km (0.098 R)
• M21: 30,195,732 km (0.12 R)
• M22: 30,803,249 km (0.036 R)
• M23: 37,916,927 km (0.106 R)
• M24: 39,822,205 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 16.9

Radius: 4

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 6.96 AU - 7.42 AU

Year: 12258 Days

Day: 24.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,425,475 km

• M1: 52,210 km (0.091 R)
• M2: 1,662,032 km (0.102 R)
• M3: 2,329,089 km (0.118 R)
• M4: 3,439,853 km (0.091 R)
• M5: 3,666,195 km (0.105 R)
• M6: 8,055,397 km (0.089 R)
• M7: 13,115,245 km (0.1 R)
• M8: 14,190,256 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 773.2

Radius: 7.2

Gravity: 14.92 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 6.52 AU - 8.12 AU

Year: 12592 Days

Day: 22.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 39,425,475 km

• M1: 93,499 km (0.075 R)
• M2: 411,693 km (0.105 R)
• M3: 760,256 km (0.091 R)
• M4: 1,008,439 km (0.096 R)
• M5: 1,378,844 km (0.108 R)
• M6: 2,393,566 km (0.117 R)
• M7: 4,065,173 km (0.111 R)
• M8: 5,635,501 km (0.115 R)
• M9: 7,842,968 km (0.106 R)
• M10: 9,087,771 km (0.096 R)
• M11: 9,704,563 km (0.118 R)
• M12: 11,485,676 km (0.106 R)
• M13: 11,722,788 km (0.09 R)
• M14: 11,963,043 km (0.117 R)
• M15: 14,481,223 km (0.115 R)
• M16: 15,250,755 km (0.043 R)
• M17: 17,177,725 km (0.027 R)
• M18: 17,880,985 km (0.052 R)
• M19: 21,868,516 km (0.069 R)
• M20: 24,213,463 km (0.061 R)
• M21: 24,701,750 km (0.037 R)
• M22: 26,617,500 km (0.115 R)
• M23: 28,847,705 km (0.071 R)
• M24: 29,176,222 km (0.083 R)
• M25: 30,514,974 km (0.03 R)
• M26: 30,856,057 km (0.064 R)
• M27: 31,429,914 km (0.037 R)
• M28: 35,523,510 km (0.071 R)
• M29: 35,774,835 km (0.118 R)
• M30: 42,027,727 km (0.066 R)
• M31: 42,449,892 km (0.099 R)
• M32: 44,022,165 km (0.074 R)
• M33: 44,603,353 km (0.059 R)
• M34: 45,189,777 km (0.084 R)
• M35: 46,228,136 km (0.107 R)
• M36: 52,144,582 km (0.1 R)
• M37: 58,197,012 km (0.052 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 685.4

Radius: 3.6

Gravity: 52.89 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 6.78 AU - 8.38 AU

Year: 13269 Days

Day: 23.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 70.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 39,425,475 km

• M1: 52,060 km (0.092 R)
• M2: 239,955 km (0.094 R)
• M3: 441,463 km (0.103 R)
• M4: 635,791 km (0.119 R)
• M5: 992,731 km (0.075 R)
• M6: 2,030,492 km (0.111 R)
• M7: 3,046,710 km (0.074 R)
• M8: 3,269,312 km (0.083 R)
• M9: 3,555,941 km (0.105 R)
• M10: 3,887,450 km (0.032 R)
• M11: 4,031,513 km (0.104 R)
• M12: 4,149,396 km (0.054 R)
• M13: 4,676,130 km (0.046 R)
• M14: 6,050,486 km (0.067 R)
• M15: 6,322,904 km (0.118 R)
• M16: 6,767,359 km (0.034 R)
• M17: 7,538,985 km (0.046 R)
• M18: 7,854,337 km (0.116 R)
• M19: 9,255,022 km (0.059 R)
• M20: 9,933,747 km (0.072 R)
• M21: 11,214,904 km (0.056 R)
• M22: 11,625,699 km (0.078 R)
• M23: 15,137,809 km (0.089 R)
• M24: 15,494,899 km (0.081 R)
• M25: 16,449,483 km (0.11 R)
• M26: 17,132,995 km (0.117 R)
• M27: 17,520,753 km (0.071 R)
• M28: 17,677,532 km (0.102 R)
• M29: 18,073,368 km (0.118 R)
• M30: 18,556,269 km (0.096 R)
• M31: 22,919,740 km (0.08 R)
• M32: 25,237,759 km (0.115 R)
• M33: 28,241,385 km (0.07 R)
• M34: 31,590,433 km (0.101 R)
• M35: 32,055,981 km (0.034 R)
• M36: 48,398,053 km (0.099 R)
• M37: 49,797,242 km (0.071 R)
• M38: 53,990,470 km (0.108 R)
• M39: 55,495,125 km (0.049 R)
• M40: 56,342,896 km (0.077 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 117.6

Radius: 6.2

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 9.04 AU - 9.54 AU

Year: 18003 Days

Day: 24.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 39,425,475 km

• M1: 77,043 km (0.118 R)
• M2: 322,234 km (0.061 R)
• M3: 721,959 km (0.079 R)
• M4: 940,821 km (0.111 R)
• M5: 1,260,661 km (0.071 R)
• M6: 2,576,524 km (0.089 R)
• M7: 4,214,770 km (0.107 R)
• M8: 4,538,351 km (0.112 R)
• M9: 5,420,529 km (0.087 R)
• M10: 6,307,495 km (0.117 R)
• M11: 7,211,814 km (0.119 R)
• M12: 7,834,141 km (0.093 R)
• M13: 8,076,490 km (0.03 R)
• M14: 8,661,567 km (0.06 R)
• M15: 10,057,315 km (0.091 R)
• M16: 10,343,795 km (0.074 R)
• M17: 10,734,246 km (0.062 R)
• M18: 12,232,468 km (0.103 R)
• M19: 13,059,745 km (0.115 R)
• M20: 14,100,946 km (0.077 R)
• M21: 16,412,981 km (0.104 R)
• M22: 17,831,767 km (0.051 R)
• M23: 22,985,114 km (0.112 R)
• M24: 25,279,946 km (0.118 R)
• M25: 28,192,168 km (0.056 R)
• M26: 30,319,300 km (0.08 R)
• M27: 32,654,971 km (0.108 R)
• M28: 33,920,120 km (0.087 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 363 - 18,493 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit