🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.8

Radius: 12.6

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.48 AU - 0.7 AU

Year: 307 Days

Day: 11.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,372,058 km

• M1: 156,928 km (0.085 R)
• M2: 599,289 km (0.065 R)
• M3: 1,012,927 km (0.109 R)
• M4: 1,489,396 km (0.079 R)
• M5: 1,942,528 km (0.118 R)
• M6: 2,746,617 km (0.102 R)
• M7: 3,448,680 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.4

Radius: 10.7

Gravity: 8.57 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.58 AU - 0.72 AU

Year: 355 Days

Day: 6.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,372,058 km

• M1: 133,142 km (0.11 R)
• M2: 471,682 km (0.091 R)
• M3: 829,670 km (0.081 R)
• M4: 1,287,738 km (0.081 R)
• M5: 1,789,191 km (0.053 R)
• M6: 2,408,975 km (0.099 R)
• M7: 2,873,476 km (0.048 R)
• M8: 3,385,250 km (0.093 R)
• M9: 4,103,320 km (0.097 R)
• M10: 4,607,166 km (0.105 R)
• M11: 5,456,582 km (0.103 R)
• M12: 5,807,389 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299

Radius: 8.8

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.56 AU - 0.8 AU

Year: 380 Days

Day: 12.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,372,058 km

• M1: 109,506 km (0.065 R)
• M2: 462,108 km (0.115 R)
• M3: 768,185 km (0.118 R)
• M4: 1,178,532 km (0.075 R)
• M5: 1,453,194 km (0.068 R)
• M6: 2,008,950 km (0.098 R)
• M7: 2,357,064 km (0.111 R)
• M8: 2,809,298 km (0.079 R)
• M9: 3,552,052 km (0.035 R)
• M10: 3,969,729 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.1

Radius: 8.3

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.6 AU - 0.84 AU

Year: 414 Days

Day: 7.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,372,058 km

• M1: 103,223 km (0.107 R)
• M2: 370,704 km (0.065 R)
• M3: 639,082 km (0.078 R)
• M4: 936,782 km (0.103 R)
• M5: 1,848,282 km (0.045 R)
• M6: 2,320,413 km (0.07 R)
• M7: 2,646,686 km (0.041 R)
• M8: 3,193,615 km (0.078 R)
• M9: 3,494,307 km (0.091 R)
• M10: 4,443,954 km (0.106 R)
• M11: 4,906,062 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956

Radius: 14.2

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.78 AU - 0.84 AU

Year: 494 Days

Day: 14.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,372,058 km

• M1: 176,525 km (0.107 R)
• M2: 709,393 km (0.043 R)
• M3: 1,347,727 km (0.058 R)
• M4: 1,870,572 km (0.117 R)
• M5: 2,570,540 km (0.077 R)
• M6: 3,134,524 km (0.058 R)
• M7: 3,713,618 km (0.089 R)
• M8: 4,828,122 km (0.114 R)
• M9: 6,193,053 km (0.116 R)
• M10: 6,863,102 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.3

Radius: 14.3

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.7 AU - 0.94 AU

Year: 504 Days

Day: 6.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 63,372,058 km

• M1: 179,218 km (0.109 R)
• M2: 647,759 km (0.094 R)
• M3: 1,591,123 km (0.116 R)
• M4: 2,618,412 km (0.087 R)
• M5: 3,605,757 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.2

Radius: 10.5

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.77 AU - 0.97 AU

Year: 550 Days

Day: 6 Hours

Environment

Temp: -174 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,372,058 km

• M1: 130,599 km (0.085 R)
• M2: 506,688 km (0.102 R)
• M3: 885,171 km (0.085 R)
• M4: 1,463,815 km (0.106 R)
• M5: 1,822,850 km (0.062 R)
• M6: 2,797,480 km (0.048 R)
• M7: 3,200,796 km (0.069 R)
• M8: 3,826,265 km (0.082 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336.7

Radius: 14.6

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.45 AU - 1.77 AU

Year: 1386 Days

Day: 8.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,372,058 km

• M1: 182,360 km (0.087 R)
• M2: 673,340 km (0.064 R)
• M3: 1,149,809 km (0.104 R)
• M4: 1,629,270 km (0.071 R)
• M5: 2,417,352 km (0.098 R)
• M6: 2,900,852 km (0.067 R)
• M7: 3,492,213 km (0.06 R)
• M8: 4,019,545 km (0.12 R)
• M9: 5,067,478 km (0.112 R)
• M10: 7,506,073 km (0.103 R)
• M11: 8,131,392 km (0.082 R)
• M12: 8,603,074 km (0.12 R)
• M13: 9,176,483 km (0.095 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 192.9

Radius: 8.4

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.81 AU - 5.13 AU

Year: 6410 Days

Day: 6.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 63,372,058 km

• M1: 104,569 km (0.078 R)
• M2: 433,983 km (0.037 R)
• M3: 803,939 km (0.1 R)
• M4: 1,462,618 km (0.071 R)
• M5: 1,992,195 km (0.081 R)
• M6: 2,280,320 km (0.083 R)
• M7: 2,806,755 km (0.049 R)
• M8: 3,317,632 km (0.069 R)
• M9: 4,058,141 km (0.07 R)
• M10: 5,002,403 km (0.119 R)
• M11: 7,192,366 km (0.108 R)
• M12: 9,075,953 km (0.116 R)
• M13: 9,526,991 km (0.093 R)
• M14: 10,392,564 km (0.115 R)
• M15: 10,970,012 km (0.098 R)
• M16: 13,935,640 km (0.056 R)
• M17: 15,049,695 km (0.113 R)
• M18: 15,416,210 km (0.115 R)
• M19: 16,331,450 km (0.12 R)
• M20: 17,225,596 km (0.064 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 700.6

Radius: 4.7

Gravity: 31.72 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 7.24 AU - 8.54 AU

Year: 15032 Days

Day: 20.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 63,372,058 km

• M1: 59,091 km (0.062 R)
• M2: 322,683 km (0.117 R)
• M3: 1,184,067 km (0.092 R)
• M4: 2,749,758 km (0.083 R)
• M5: 3,037,136 km (0.05 R)
• M6: 4,295,553 km (0.035 R)
• M7: 5,198,376 km (0.096 R)
• M8: 6,589,936 km (0.108 R)
• M9: 9,753,632 km (0.112 R)
• M10: 9,972,792 km (0.072 R)
• M11: 11,722,040 km (0.115 R)
• M12: 16,890,198 km (0.114 R)
• M13: 17,768,936 km (0.056 R)
• M14: 18,095,957 km (0.091 R)
• M15: 21,589,366 km (0.1 R)
• M16: 24,386,099 km (0.039 R)
• M17: 24,891,440 km (0.058 R)
• M18: 29,189,088 km (0.106 R)
• M19: 29,873,498 km (0.099 R)
• M20: 31,870,929 km (0.107 R)
• M21: 33,830,661 km (0.082 R)
• M22: 39,492,491 km (0.066 R)
• M23: 42,911,401 km (0.113 R)
• M24: 48,085,094 km (0.106 R)
• M25: 56,777,329 km (0.077 R)
• M26: 61,677,856 km (0.112 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: 410 - 16,179 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit