🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.6

Radius: 9

Gravity: 8.95 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.7 AU - 0.76 AU

Year: 409 Days

Day: 6 Hours

Environment

Temp: -149 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,078,788 km

• M1: 112,498 km (0.108 R)
• M2: 395,387 km (0.111 R)
• M3: 694,882 km (0.095 R)
• M4: 992,582 km (0.12 R)
• M5: 1,473,988 km (0.056 R)
• M6: 1,964,070 km (0.119 R)
• M7: 2,261,321 km (0.048 R)
• M8: 2,678,101 km (0.06 R)
• M9: 2,991,209 km (0.083 R)
• M10: 3,679,060 km (0.066 R)
• M11: 4,583,978 km (0.083 R)
• M12: 4,926,707 km (0.112 R)
• M13: 5,481,116 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.7

Radius: 15

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.68 AU - 1.06 AU

Year: 532 Days

Day: 8.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 144.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,078,788 km

• M1: 186,698 km (0.07 R)
• M2: 716,574 km (0.099 R)
• M3: 1,223,262 km (0.066 R)
• M4: 1,752,838 km (0.085 R)
• M5: 2,671,968 km (0.05 R)
• M6: 3,908,244 km (0.119 R)
• M7: 4,878,087 km (0.065 R)
• M8: 5,747,101 km (0.087 R)
• M9: 6,324,549 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.9

Radius: 11.2

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.06 AU - 1.44 AU

Year: 917 Days

Day: 12.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,078,788 km

• M1: 143,464 km (0.025 R)
• M2: 497,114 km (0.111 R)
• M3: 1,577,958 km (0.086 R)
• M4: 2,066,545 km (0.111 R)
• M5: 2,509,055 km (0.068 R)
• M6: 2,866,744 km (0.099 R)
• M7: 4,262,791 km (0.087 R)
• M8: 5,111,161 km (0.07 R)
• M9: 5,947,712 km (0.115 R)
• M10: 6,633,170 km (0.071 R)
• M11: 7,393,875 km (0.113 R)
• M12: 8,013,958 km (0.091 R)
• M13: 8,463,350 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.1

Radius: 9.8

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.3 AU - 1.38 AU

Year: 1018 Days

Day: 9.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,078,788 km

• M1: 121,922 km (0.104 R)
• M2: 468,989 km (0.114 R)
• M3: 933,042 km (0.092 R)
• M4: 1,258,716 km (0.101 R)
• M5: 1,623,735 km (0.099 R)
• M6: 2,095,417 km (0.085 R)
• M7: 2,732,256 km (0.096 R)
• M8: 3,132,430 km (0.109 R)
• M9: 3,519,140 km (0.052 R)
• M10: 3,868,003 km (0.107 R)
• M11: 4,181,260 km (0.115 R)
• M12: 4,620,181 km (0.109 R)
• M13: 5,106,374 km (0.052 R)
• M14: 5,537,216 km (0.096 R)
• M15: 5,936,492 km (0.041 R)
• M16: 6,316,022 km (0.104 R)
• M17: 6,915,610 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.1

Radius: 8.3

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.79 AU - 1.89 AU

Year: 1637 Days

Day: 7.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,078,788 km

• M1: 103,372 km (0.05 R)
• M2: 657,333 km (0.095 R)
• M3: 1,360,742 km (0.077 R)
• M4: 2,896,664 km (0.038 R)
• M5: 4,766,487 km (0.053 R)
• M6: 5,269,735 km (0.072 R)
• M7: 5,725,859 km (0.096 R)
• M8: 7,206,129 km (0.076 R)
• M9: 8,412,786 km (0.092 R)
• M10: 9,488,245 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 337.9

Radius: 7.4

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 6.33 AU - 7.97 AU

Year: 12542 Days

Day: 21 Hours

Environment

Temp: -215 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 60,078,788 km

• M1: 92,003 km (0.103 R)
• M2: 361,428 km (0.108 R)
• M3: 669,750 km (0.102 R)
• M4: 1,046,587 km (0.094 R)
• M5: 1,278,763 km (0.114 R)
• M6: 1,804,450 km (0.047 R)
• M7: 2,177,098 km (0.046 R)
• M8: 3,562,374 km (0.071 R)
• M9: 4,773,070 km (0.066 R)
• M10: 5,752,786 km (0.046 R)
• M11: 6,598,912 km (0.059 R)
• M12: 8,318,090 km (0.027 R)
• M13: 9,873,908 km (0.105 R)
• M14: 13,670,253 km (0.116 R)
• M15: 14,406,275 km (0.06 R)
• M16: 16,703,949 km (0.066 R)
• M17: 17,831,318 km (0.096 R)
• M18: 18,709,607 km (0.109 R)
• M19: 20,950,733 km (0.059 R)
• M20: 21,435,729 km (0.057 R)
• M21: 22,936,046 km (0.052 R)
• M22: 23,886,442 km (0.082 R)
• M23: 24,150,183 km (0.063 R)
• M24: 24,863,017 km (0.076 R)
• M25: 26,237,223 km (0.068 R)
• M26: 31,815,428 km (0.063 R)
• M27: 32,134,819 km (0.106 R)
• M28: 36,483,480 km (0.086 R)
• M29: 40,581,414 km (0.108 R)
• M30: 40,957,204 km (0.103 R)
• M31: 42,098,038 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 982.2

Radius: 7.6

Gravity: 17 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 5.61 AU - 9.27 AU

Year: 13313 Days

Day: 17.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 60,078,788 km

• M1: 109,356 km (0.117 R)
• M2: 617,091 km (0.102 R)
• M3: 858,542 km (0.085 R)
• M4: 1,102,836 km (0.084 R)
• M5: 2,275,234 km (0.071 R)
• M6: 4,899,181 km (0.07 R)
• M7: 6,006,803 km (0.066 R)
• M8: 7,778,940 km (0.106 R)
• M9: 8,556,549 km (0.087 R)
• M10: 9,120,533 km (0.093 R)
• M11: 10,209,007 km (0.063 R)
• M12: 13,992,188 km (0.06 R)
• M13: 14,344,341 km (0.079 R)
• M14: 15,066,301 km (0.097 R)
• M15: 15,661,251 km (0.116 R)
• M16: 16,117,525 km (0.1 R)
• M17: 16,977,114 km (0.115 R)
• M18: 19,827,253 km (0.096 R)
• M19: 20,182,249 km (0.069 R)
• M20: 26,029,282 km (0.063 R)
• M21: 28,880,168 km (0.051 R)
• M22: 29,336,442 km (0.102 R)
• M23: 32,298,031 km (0.053 R)
• M24: 33,913,987 km (0.12 R)
• M25: 36,107,840 km (0.113 R)
• M26: 37,172,229 km (0.052 R)
• M27: 39,223,963 km (0.085 R)
• M28: 42,075,598 km (0.099 R)
• M29: 44,001,521 km (0.117 R)
• M30: 49,152,774 km (0.11 R)
• M31: 52,801,765 km (0.053 R)
• M32: 53,312,941 km (0.092 R)
• M33: 60,076,411 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296.9

Radius: 7.5

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 8.99 AU - 10.57 AU

Year: 20064 Days

Day: 18 Hours

Environment

Temp: -222 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 60,078,788 km

• M1: 110,553 km (0.093 R)
• M2: 446,400 km (0.086 R)
• M3: 940,522 km (0.045 R)
• M4: 1,202,168 km (0.051 R)
• M5: 2,052,782 km (0.118 R)
• M6: 2,337,766 km (0.027 R)
• M7: 4,006,081 km (0.102 R)
• M8: 4,240,800 km (0.075 R)
• M9: 5,204,510 km (0.104 R)
• M10: 6,074,721 km (0.113 R)
• M11: 6,464,722 km (0.058 R)
• M12: 7,468,973 km (0.097 R)
• M13: 8,429,990 km (0.12 R)
• M14: 8,670,393 km (0.093 R)
• M15: 15,266,911 km (0.096 R)
• M16: 16,208,929 km (0.051 R)
• M17: 18,773,635 km (0.092 R)
• M18: 22,139,138 km (0.049 R)
• M19: 23,533,989 km (0.041 R)
• M20: 24,789,414 km (0.1 R)
• M21: 25,886,116 km (0.07 R)
• M22: 26,190,847 km (0.098 R)
• M23: 27,538,574 km (0.093 R)
• M24: 31,396,255 km (0.067 R)
• M25: 34,607,523 km (0.083 R)
• M26: 34,977,329 km (0.066 R)
• M27: 36,102,604 km (0.07 R)
• M28: 38,954,388 km (0.094 R)
• M29: 50,272,664 km (0.074 R)
• M30: 50,747,188 km (0.079 R)
• M31: 52,674,607 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 249.5

Radius: 7.4

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 8.16 AU - 13.42 AU

Year: 23251 Days

Day: 19.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 60,078,788 km

• M1: 249,679 km (0.072 R)
• M2: 624,122 km (0.064 R)
• M3: 1,195,736 km (0.032 R)
• M4: 1,777,372 km (0.066 R)
• M5: 2,867,492 km (0.079 R)
• M6: 4,076,991 km (0.076 R)
• M7: 4,729,537 km (0.082 R)
• M8: 6,399,947 km (0.048 R)
• M9: 8,143,360 km (0.118 R)
• M10: 8,673,535 km (0.108 R)
• M11: 10,796,927 km (0.095 R)
• M12: 11,201,141 km (0.085 R)
• M13: 11,735,803 km (0.114 R)
• M14: 13,441,817 km (0.093 R)
• M15: 13,707,952 km (0.057 R)
• M16: 14,388,622 km (0.117 R)
• M17: 15,891,034 km (0.118 R)
• M18: 16,718,460 km (0.057 R)
• M19: 17,337,944 km (0.112 R)
• M20: 17,892,504 km (0.039 R)
• M21: 18,133,805 km (0.088 R)
• M22: 23,910,676 km (0.085 R)
• M23: 29,443,853 km (0.12 R)
• M24: 29,893,095 km (0.082 R)
• M25: 30,346,826 km (0.11 R)
• M26: 31,152,111 km (0.103 R)
• M27: 32,805,167 km (0.088 R)
• M28: 36,542,721 km (0.067 R)
• M29: 38,647,712 km (0.067 R)
• M30: 41,813,203 km (0.094 R)
• M31: 44,407,978 km (0.117 R)
• M32: 46,045,477 km (0.088 R)
• M33: 46,650,899 km (0.032 R)
• M34: 48,032,136 km (0.111 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 264 - 17,492 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit