🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.5

Radius: 13.5

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.68 AU - 1.02 AU

Year: 514 Days

Day: 9.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 36,824,707 km

• M1: 167,998 km (0.094 R)
• M2: 611,107 km (0.097 R)
• M3: 1,109,268 km (0.102 R)
• M4: 1,861,446 km (0.087 R)
• M5: 2,416,155 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.4

Radius: 14.1

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.02 AU - 1.06 AU

Year: 696 Days

Day: 9.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,824,707 km

• M1: 175,777 km (0.109 R)
• M2: 623,075 km (0.116 R)
• M3: 1,511,088 km (0.059 R)
• M4: 2,588,043 km (0.081 R)
• M5: 3,540,682 km (0.096 R)
• M6: 5,064,038 km (0.108 R)
• M7: 6,392,467 km (0.056 R)
• M8: 7,074,334 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.7

Radius: 14.4

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.91 AU - 1.27 AU

Year: 747 Days

Day: 14.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,824,707 km

• M1: 181,761 km (0.088 R)
• M2: 762,201 km (0.062 R)
• M3: 2,078,662 km (0.063 R)
• M4: 2,979,242 km (0.108 R)
• M5: 3,513,755 km (0.072 R)
• M6: 4,141,916 km (0.087 R)
• M7: 5,391,358 km (0.08 R)
• M8: 5,941,429 km (0.067 R)
• M9: 6,671,616 km (0.068 R)
• M10: 7,372,781 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.8

Radius: 10.7

Gravity: 7.8 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.43 AU - 1.65 AU

Year: 1254 Days

Day: 9.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 111.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,824,707 km

• M1: 133,890 km (0.117 R)
• M2: 480,060 km (0.106 R)
• M3: 1,094,907 km (0.053 R)
• M4: 1,641,837 km (0.045 R)
• M5: 2,352,427 km (0.048 R)
• M6: 3,227,125 km (0.066 R)
• M7: 3,781,236 km (0.116 R)
• M8: 4,397,878 km (0.088 R)
• M9: 4,760,055 km (0.086 R)
• M10: 5,100,839 km (0.103 R)
• M11: 5,458,078 km (0.084 R)
• M12: 6,413,111 km (0.118 R)
• M13: 6,956,002 km (0.032 R)
• M14: 7,291,101 km (0.096 R)
• M15: 9,071,016 km (0.058 R)
• M16: 9,724,011 km (0.066 R)
• M17: 11,054,235 km (0.1 R)
• M18: 11,908,589 km (0.075 R)
• M19: 12,426,946 km (0.097 R)
• M20: 12,883,069 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.2

Radius: 12.2

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.24 AU - 3.1 AU

Year: 2862 Days

Day: 9.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,824,707 km

• M1: 152,141 km (0.092 R)
• M2: 575,952 km (0.078 R)
• M3: 1,189,453 km (0.073 R)
• M4: 1,745,059 km (0.112 R)
• M5: 3,201,095 km (0.074 R)
• M6: 3,581,822 km (0.094 R)
• M7: 3,973,619 km (0.111 R)
• M8: 4,778,306 km (0.109 R)
• M9: 5,889,219 km (0.092 R)
• M10: 6,411,316 km (0.047 R)
• M11: 7,107,245 km (0.075 R)
• M12: 7,518,639 km (0.049 R)
• M13: 8,039,539 km (0.076 R)
• M14: 8,584,375 km (0.073 R)
• M15: 11,170,623 km (0.093 R)
• M16: 14,610,326 km (0.114 R)
• M17: 17,720,616 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.2

Radius: 12.7

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 3.09 AU - 4.99 AU

Year: 5327 Days

Day: 13.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,824,707 km

• M1: 159,322 km (0.104 R)
• M2: 648,656 km (0.077 R)
• M3: 1,567,786 km (0.1 R)
• M4: 1,993,541 km (0.118 R)
• M5: 2,566,202 km (0.065 R)
• M6: 3,346,504 km (0.113 R)
• M7: 3,783,929 km (0.049 R)
• M8: 4,239,903 km (0.086 R)
• M9: 4,796,706 km (0.106 R)
• M10: 6,339,958 km (0.087 R)
• M11: 7,383,553 km (0.119 R)
• M12: 8,570,312 km (0.115 R)
• M13: 10,345,590 km (0.055 R)
• M14: 11,089,840 km (0.113 R)
• M15: 11,989,521 km (0.11 R)
• M16: 12,436,669 km (0.094 R)
• M17: 13,625,524 km (0.115 R)
• M18: 14,247,701 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.6

Radius: 8.9

Gravity: 7.08 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 4.09 AU - 4.67 AU

Year: 6013 Days

Day: 8.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 36,824,707 km

• M1: 111,899 km (0.09 R)
• M2: 492,925 km (0.09 R)
• M3: 895,044 km (0.088 R)
• M4: 1,203,365 km (0.071 R)
• M5: 1,927,269 km (0.11 R)
• M6: 2,402,243 km (0.115 R)
• M7: 2,785,363 km (0.079 R)
• M8: 4,458,615 km (0.105 R)
• M9: 5,581,945 km (0.107 R)
• M10: 6,883,746 km (0.117 R)
• M11: 7,371,435 km (0.081 R)
• M12: 8,222,647 km (0.112 R)
• M13: 8,892,845 km (0.119 R)
• M14: 9,513,976 km (0.102 R)
• M15: 10,567,743 km (0.108 R)
• M16: 11,991,765 km (0.057 R)
• M17: 12,442,952 km (0.069 R)
• M18: 14,529,992 km (0.073 R)
• M19: 14,870,627 km (0.057 R)
• M20: 16,044,521 km (0.091 R)
• M21: 20,927,695 km (0.103 R)
• M22: 22,175,042 km (0.03 R)
• M23: 23,861,758 km (0.094 R)
• M24: 24,495,754 km (0.102 R)
• M25: 26,803,600 km (0.081 R)
• M26: 29,162,609 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.7

Radius: 10

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 4.87 AU - 5.85 AU

Year: 8141 Days

Day: 13.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,824,707 km

• M1: 124,615 km (0.116 R)
• M2: 489,035 km (0.1 R)
• M3: 1,725,013 km (0.047 R)
• M4: 2,804,810 km (0.028 R)
• M5: 3,250,612 km (0.105 R)
• M6: 3,581,373 km (0.066 R)
• M7: 4,057,543 km (0.087 R)
• M8: 6,569,590 km (0.102 R)
• M9: 8,251,519 km (0.106 R)
• M10: 11,361,360 km (0.105 R)
• M11: 12,285,875 km (0.066 R)
• M12: 13,708,850 km (0.071 R)
• M13: 14,226,159 km (0.112 R)
• M14: 14,637,404 km (0.064 R)
• M15: 28,889,294 km (0.063 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 424 - 18,374 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit