🌌 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: 252.7

Radius: 8.8

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.66 AU - 0.8 AU

Year: 416 Days

Day: 14.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,139,456 km

• M1: 109,506 km (0.101 R)
• M2: 487,839 km (0.097 R)
• M3: 807,380 km (0.036 R)
• M4: 1,133,204 km (0.114 R)
• M5: 1,893,909 km (0.095 R)
• M6: 2,276,281 km (0.078 R)
• M7: 2,763,970 km (0.11 R)
• M8: 4,090,754 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.2

Radius: 8.1

Gravity: 13.43 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.39 AU - 2.17 AU

Year: 1584 Days

Day: 5.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,139,456 km

• M1: 100,979 km (0.102 R)
• M2: 370,255 km (0.106 R)
• M3: 932,444 km (0.099 R)
• M4: 1,808,788 km (0.109 R)
• M5: 2,147,178 km (0.114 R)
• M6: 2,527,606 km (0.081 R)
• M7: 3,166,688 km (0.091 R)
• M8: 3,748,474 km (0.039 R)
• M9: 4,439,018 km (0.115 R)
• M10: 4,762,747 km (0.06 R)
• M11: 5,145,718 km (0.095 R)
• M12: 7,075,231 km (0.061 R)
• M13: 7,803,923 km (0.074 R)
• M14: 8,097,134 km (0.079 R)
• M15: 9,085,228 km (0.095 R)
• M16: 9,475,828 km (0.109 R)
• M17: 10,360,550 km (0.117 R)
• M18: 12,933,783 km (0.094 R)
• M19: 13,303,589 km (0.098 R)
• M20: 14,943,182 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404

Radius: 12.8

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.73 AU - 2.07 AU

Year: 1746 Days

Day: 13.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,139,456 km

• M1: 161,865 km (0.119 R)
• M2: 894,745 km (0.092 R)
• M3: 1,582,596 km (0.069 R)
• M4: 2,348,537 km (0.058 R)
• M5: 2,932,417 km (0.065 R)
• M6: 3,425,043 km (0.12 R)
• M7: 5,042,795 km (0.114 R)
• M8: 5,559,805 km (0.088 R)
• M9: 6,066,343 km (0.1 R)
• M10: 7,801,379 km (0.08 R)
• M11: 11,095,824 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668

Radius: 12.9

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 2.34 AU - 2.88 AU

Year: 2812 Days

Day: 15 Hours

Environment

Temp: -211 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,139,456 km

• M1: 161,117 km (0.112 R)
• M2: 781,050 km (0.075 R)
• M3: 1,342,641 km (0.116 R)
• M4: 1,992,644 km (0.062 R)
• M5: 2,570,989 km (0.027 R)
• M6: 5,054,762 km (0.026 R)
• M7: 5,466,456 km (0.099 R)
• M8: 6,330,234 km (0.098 R)
• M9: 6,896,761 km (0.098 R)
• M10: 7,810,056 km (0.043 R)
• M11: 9,989,099 km (0.08 R)
• M12: 11,037,181 km (0.077 R)
• M13: 11,443,489 km (0.06 R)
• M14: 13,079,641 km (0.101 R)
• M15: 14,001,014 km (0.118 R)
• M16: 14,574,273 km (0.118 R)
• M17: 15,564,611 km (0.042 R)
• M18: 17,404,964 km (0.07 R)
• M19: 18,576,615 km (0.071 R)
• M20: 19,622,005 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.6

Radius: 10.6

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 3.13 AU - 3.45 AU

Year: 3979 Days

Day: 11.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,139,456 km

• M1: 131,796 km (0.08 R)
• M2: 650,152 km (0.1 R)
• M3: 1,009,486 km (0.111 R)
• M4: 1,346,082 km (0.103 R)
• M5: 1,811,630 km (0.082 R)
• M6: 2,395,660 km (0.088 R)
• M7: 3,210,969 km (0.071 R)
• M8: 3,691,926 km (0.074 R)
• M9: 4,375,139 km (0.091 R)
• M10: 5,032,024 km (0.069 R)
• M11: 5,992,741 km (0.077 R)
• M12: 8,095,339 km (0.118 R)
• M13: 8,894,192 km (0.088 R)
• M14: 10,224,715 km (0.059 R)
• M15: 10,864,994 km (0.069 R)
• M16: 11,531,752 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.8

Radius: 10.7

Gravity: 6.99 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 3.09 AU - 3.97 AU

Year: 4423 Days

Day: 9.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 49,139,456 km

• M1: 147,952 km (0.105 R)
• M2: 645,664 km (0.066 R)
• M3: 1,035,965 km (0.119 R)
• M4: 1,985,762 km (0.093 R)
• M5: 2,435,902 km (0.076 R)
• M6: 2,826,502 km (0.095 R)
• M7: 4,210,432 km (0.104 R)
• M8: 4,776,959 km (0.11 R)
• M9: 5,648,965 km (0.107 R)
• M10: 6,062,454 km (0.106 R)
• M11: 7,017,187 km (0.053 R)
• M12: 7,495,751 km (0.081 R)
• M13: 8,983,951 km (0.109 R)
• M14: 10,440,286 km (0.083 R)
• M15: 12,437,567 km (0.041 R)
• M16: 12,987,040 km (0.096 R)
• M17: 13,396,639 km (0.108 R)
• M18: 15,066,151 km (0.057 R)
• M19: 17,358,439 km (0.054 R)
• M20: 20,144,849 km (0.081 R)
• M21: 21,967,400 km (0.052 R)
• M22: 22,696,690 km (0.117 R)
• M23: 25,616,391 km (0.098 R)
• M24: 26,588,030 km (0.081 R)
• M25: 28,006,517 km (0.046 R)
• M26: 28,777,544 km (0.093 R)

Asteroid Belt

Center: 4.49 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.4

Radius: 11.2

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 5.36 AU - 5.54 AU

Year: 8484 Days

Day: 7.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,139,456 km

• M1: 153,936 km (0.059 R)
• M2: 677,529 km (0.098 R)
• M3: 1,869,225 km (0.078 R)
• M4: 3,028,160 km (0.027 R)
• M5: 10,035,025 km (0.084 R)
• M6: 11,388,587 km (0.071 R)
• M7: 11,991,167 km (0.111 R)
• M8: 13,565,086 km (0.058 R)
• M9: 14,832,928 km (0.106 R)
• M10: 19,894,722 km (0.068 R)
• M11: 20,769,121 km (0.08 R)
• M12: 22,450,452 km (0.099 R)
• M13: 24,372,485 km (0.108 R)
• M14: 26,401,631 km (0.061 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 787.9

Radius: 3.2

Gravity: 76.94 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 4.62 AU - 7.28 AU

Year: 9678 Days

Day: 23.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 49,139,456 km

• M1: 48,470 km (0.093 R)
• M2: 276,756 km (0.045 R)
• M3: 432,637 km (0.073 R)
• M4: 576,999 km (0.092 R)
• M5: 710,141 km (0.111 R)
• M6: 1,574,518 km (0.071 R)
• M7: 1,820,307 km (0.056 R)
• M8: 2,273,738 km (0.036 R)
• M9: 3,088,897 km (0.106 R)
• M10: 3,835,689 km (0.035 R)
• M11: 5,072,714 km (0.082 R)
• M12: 5,851,820 km (0.111 R)
• M13: 7,600,619 km (0.066 R)
• M14: 8,708,690 km (0.106 R)
• M15: 9,132,651 km (0.09 R)
• M16: 12,375,633 km (0.108 R)
• M17: 14,349,129 km (0.109 R)
• M18: 17,836,853 km (0.098 R)
• M19: 19,695,158 km (0.096 R)
• M20: 26,914,153 km (0.077 R)
• M21: 31,707,717 km (0.061 R)
• M22: 47,536,967 km (0.103 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 358 - 13,120 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit