🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.4

Radius: 9.2

Gravity: 10.37 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.42 AU - 0.64 AU

Year: 257 Days

Day: 12.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,637,624 km

• M1: 116,088 km (0.088 R)
• M2: 663,915 km (0.119 R)
• M3: 1,103,583 km (0.117 R)
• M4: 1,517,371 km (0.098 R)
• M5: 1,921,136 km (0.059 R)
• M6: 2,820,817 km (0.077 R)
• M7: 3,190,324 km (0.107 R)
• M8: 3,799,487 km (0.087 R)
• M9: 4,353,747 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.5

Radius: 8.8

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.6 AU - 0.72 AU

Year: 358 Days

Day: 7.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 57,637,624 km

• M1: 109,506 km (0.105 R)
• M2: 483,500 km (0.078 R)
• M3: 892,501 km (0.093 R)
• M4: 1,764,956 km (0.101 R)
• M5: 3,172,821 km (0.112 R)
• M6: 3,985,287 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.7

Radius: 10.3

Gravity: 9.22 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.59 AU - 0.81 AU

Year: 391 Days

Day: 6.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,637,624 km

• M1: 128,056 km (0.113 R)
• M2: 456,722 km (0.1 R)
• M3: 788,381 km (0.104 R)
• M4: 1,145,920 km (0.059 R)
• M5: 1,482,066 km (0.086 R)
• M6: 2,066,545 km (0.031 R)
• M7: 2,613,624 km (0.111 R)
• M8: 2,938,401 km (0.027 R)
• M9: 4,120,823 km (0.086 R)
• M10: 4,504,691 km (0.092 R)
• M11: 4,881,229 km (0.052 R)
• M12: 5,595,559 km (0.1 R)
• M13: 6,139,646 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90

Radius: 12.6

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.97 AU - 1.11 AU

Year: 707 Days

Day: 13.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 57,637,624 km

• M1: 156,629 km (0.118 R)
• M2: 923,168 km (0.091 R)
• M3: 1,462,768 km (0.111 R)
• M4: 2,089,433 km (0.102 R)
• M5: 2,880,657 km (0.071 R)
• M6: 3,351,591 km (0.081 R)
• M7: 3,805,919 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.9

Radius: 14.3

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.36 AU - 1.68 AU

Year: 1250 Days

Day: 11.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,637,624 km

• M1: 178,021 km (0.105 R)
• M2: 1,047,035 km (0.115 R)
• M3: 1,788,443 km (0.117 R)
• M4: 2,468,066 km (0.102 R)
• M5: 4,334,150 km (0.102 R)
• M6: 4,897,685 km (0.117 R)
• M7: 5,468,999 km (0.061 R)
• M8: 6,040,762 km (0.091 R)
• M9: 6,605,494 km (0.103 R)
• M10: 8,432,383 km (0.07 R)
• M11: 8,880,429 km (0.041 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 542.4

Radius: 11.7

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 2.59 AU - 3.83 AU

Year: 3835 Days

Day: 11.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,637,624 km

• M1: 146,008 km (0.1 R)
• M2: 531,222 km (0.077 R)
• M3: 1,027,887 km (0.044 R)
• M4: 2,181,586 km (0.078 R)
• M5: 2,899,057 km (0.12 R)
• M6: 3,727,680 km (0.099 R)
• M7: 4,341,181 km (0.108 R)
• M8: 5,373,855 km (0.065 R)
• M9: 6,215,193 km (0.106 R)
• M10: 9,648,763 km (0.102 R)
• M11: 10,117,304 km (0.078 R)
• M12: 10,973,901 km (0.097 R)
• M13: 12,055,943 km (0.053 R)
• M14: 12,646,106 km (0.101 R)
• M15: 13,398,733 km (0.118 R)
• M16: 13,835,110 km (0.073 R)
• M17: 14,890,374 km (0.097 R)
• M18: 17,331,063 km (0.113 R)
• M19: 17,733,481 km (0.105 R)
• M20: 20,662,607 km (0.068 R)
• M21: 22,991,996 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.7

Radius: 12.9

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.76 AU - 4.08 AU

Year: 5176 Days

Day: 12.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,637,624 km

• M1: 160,369 km (0.054 R)
• M2: 585,077 km (0.067 R)
• M3: 1,390,811 km (0.113 R)
• M4: 1,993,092 km (0.082 R)
• M5: 2,444,280 km (0.072 R)
• M6: 3,153,673 km (0.118 R)
• M7: 4,496,164 km (0.12 R)
• M8: 4,931,045 km (0.109 R)
• M9: 5,507,296 km (0.099 R)
• M10: 6,632,422 km (0.092 R)
• M11: 8,200,506 km (0.108 R)
• M12: 9,791,031 km (0.043 R)
• M13: 12,154,977 km (0.098 R)
• M14: 12,851,504 km (0.097 R)
• M15: 16,802,085 km (0.032 R)
• M16: 17,982,861 km (0.057 R)
• M17: 18,691,356 km (0.065 R)
• M18: 19,218,390 km (0.053 R)
• M19: 20,027,265 km (0.111 R)
• M20: 20,929,191 km (0.093 R)
• M21: 22,222,315 km (0.095 R)
• M22: 22,664,975 km (0.07 R)
• M23: 23,188,867 km (0.03 R)
• M24: 23,951,367 km (0.102 R)
• M25: 24,809,311 km (0.087 R)
• M26: 28,969,628 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 427

Radius: 3.2

Gravity: 41.7 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 7.55 AU - 9.57 AU

Year: 16701 Days

Day: 24.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 57,637,624 km

• M1: 39,793 km (0.111 R)
• M2: 187,895 km (0.116 R)
• M3: 343,178 km (0.104 R)
• M4: 473,477 km (0.052 R)
• M5: 620,233 km (0.1 R)
• M6: 749,785 km (0.102 R)
• M7: 961,466 km (0.107 R)
• M8: 1,075,609 km (0.116 R)
• M9: 1,304,194 km (0.095 R)
• M10: 1,564,046 km (0.102 R)
• M11: 1,706,313 km (0.037 R)
• M12: 1,857,258 km (0.115 R)
• M13: 2,090,929 km (0.117 R)
• M14: 2,343,750 km (0.077 R)
• M15: 3,509,267 km (0.077 R)
• M16: 4,748,236 km (0.089 R)
• M17: 5,429,655 km (0.08 R)
• M18: 7,068,051 km (0.095 R)
• M19: 7,501,884 km (0.062 R)
• M20: 7,680,205 km (0.108 R)
• M21: 8,663,362 km (0.082 R)
• M22: 8,909,301 km (0.047 R)
• M23: 9,261,455 km (0.097 R)
• M24: 9,833,218 km (0.086 R)
• M25: 11,512,005 km (0.089 R)
• M26: 12,794,507 km (0.106 R)
• M27: 13,242,404 km (0.105 R)
• M28: 14,237,229 km (0.044 R)
• M29: 16,004,130 km (0.095 R)
• M30: 16,749,875 km (0.068 R)
• M31: 17,518,659 km (0.037 R)
• M32: 21,270,424 km (0.099 R)
• M33: 21,627,813 km (0.109 R)
• M34: 22,080,047 km (0.107 R)
• M35: 22,262,706 km (0.073 R)
• M36: 24,048,456 km (0.11 R)
• M37: 25,624,470 km (0.047 R)
• M38: 27,583,753 km (0.079 R)
• M39: 41,749,325 km (0.058 R)
• M40: 44,163,236 km (0.103 R)
• M41: 50,206,541 km (0.118 R)
• M42: 51,638,343 km (0.11 R)
• M43: 54,583,027 km (0.097 R)
• M44: 55,588,923 km (0.104 R)
• M45: 56,777,927 km (0.102 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 185 - 13,176 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit