🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.5

Radius: 10.8

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.72 AU - 0.72 AU

Year: 388 Days

Day: 7.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 27,262,672 km

• M1: 134,339 km (0.117 R)
• M2: 685,308 km (0.068 R)
• M3: 1,392,158 km (0.063 R)
• M4: 1,899,893 km (0.025 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221

Radius: 8.1

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.72 AU - 1.08 AU

Year: 543 Days

Day: 11 Hours

Environment

Temp: -159 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,262,672 km

• M1: 100,679 km (0.037 R)
• M2: 372,200 km (0.042 R)
• M3: 653,443 km (0.093 R)
• M4: 915,090 km (0.101 R)
• M5: 1,248,693 km (0.076 R)
• M6: 1,758,673 km (0.051 R)
• M7: 2,190,262 km (0.051 R)
• M8: 2,953,511 km (0.102 R)
• M9: 4,232,872 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.8

Radius: 12.2

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.95 AU - 1.47 AU

Year: 846 Days

Day: 12.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,262,672 km

• M1: 151,842 km (0.103 R)
• M2: 911,500 km (0.086 R)
• M3: 1,331,271 km (0.065 R)
• M4: 2,262,219 km (0.109 R)
• M5: 3,320,624 km (0.084 R)
• M6: 3,795,896 km (0.104 R)
• M7: 4,300,939 km (0.047 R)
• M8: 4,867,466 km (0.109 R)
• M9: 5,410,506 km (0.109 R)
• M10: 6,032,684 km (0.045 R)
• M11: 6,597,416 km (0.091 R)
• M12: 7,420,354 km (0.108 R)
• M13: 7,810,056 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.3

Radius: 11.7

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.1 AU - 1.78 AU

Year: 1099 Days

Day: 11.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,262,672 km

• M1: 145,559 km (0.049 R)
• M2: 510,877 km (0.099 R)
• M3: 931,247 km (0.074 R)
• M4: 1,538,913 km (0.037 R)
• M5: 2,364,095 km (0.086 R)
• M6: 2,784,465 km (0.094 R)
• M7: 3,168,034 km (0.117 R)
• M8: 4,128,752 km (0.039 R)
• M9: 4,574,852 km (0.088 R)
• M10: 5,954,145 km (0.11 R)
• M11: 6,338,761 km (0.099 R)
• M12: 6,836,922 km (0.1 R)
• M13: 7,284,519 km (0.097 R)
• M14: 10,233,990 km (0.07 R)
• M15: 10,987,964 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.5

Radius: 13.6

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.71 AU - 3.25 AU

Year: 3271 Days

Day: 11.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,262,672 km

• M1: 169,195 km (0.063 R)
• M2: 872,754 km (0.112 R)
• M3: 1,609,972 km (0.047 R)
• M4: 2,374,866 km (0.085 R)
• M5: 3,190,773 km (0.108 R)
• M6: 3,976,461 km (0.075 R)
• M7: 4,983,554 km (0.096 R)
• M8: 6,126,332 km (0.089 R)
• M9: 7,629,491 km (0.075 R)
• M10: 8,329,460 km (0.1 R)
• M11: 9,478,222 km (0.079 R)
• M12: 11,311,394 km (0.081 R)
• M13: 12,089,453 km (0.115 R)
• M14: 12,949,192 km (0.111 R)
• M15: 14,538,968 km (0.073 R)
• M16: 15,407,085 km (0.054 R)
• M17: 16,309,459 km (0.08 R)
• M18: 19,963,387 km (0.118 R)
• M19: 20,780,191 km (0.093 R)
• M20: 21,358,537 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.2

Radius: 13.5

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.66 AU - 3.42 AU

Year: 3370 Days

Day: 8.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,262,672 km

• M1: 167,998 km (0.039 R)
• M2: 683,812 km (0.12 R)
• M3: 1,258,567 km (0.095 R)
• M4: 2,164,681 km (0.117 R)
• M5: 2,955,605 km (0.057 R)
• M6: 3,660,660 km (0.104 R)
• M7: 4,197,567 km (0.07 R)
• M8: 5,361,737 km (0.084 R)
• M9: 7,311,446 km (0.065 R)
• M10: 8,636,435 km (0.078 R)
• M11: 9,123,077 km (0.09 R)
• M12: 10,991,105 km (0.108 R)
• M13: 11,447,379 km (0.111 R)
• M14: 12,316,692 km (0.108 R)
• M15: 16,142,657 km (0.116 R)
• M16: 16,832,752 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.2

Radius: 11.3

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.9 AU - 4.36 AU

Year: 4397 Days

Day: 11.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,262,672 km

• M1: 140,472 km (0.11 R)
• M2: 516,561 km (0.062 R)
• M3: 1,021,454 km (0.117 R)
• M4: 1,571,675 km (0.095 R)
• M5: 2,692,762 km (0.088 R)
• M6: 3,558,784 km (0.116 R)
• M7: 4,306,773 km (0.111 R)
• M8: 5,081,690 km (0.112 R)
• M9: 5,837,309 km (0.038 R)
• M10: 6,314,227 km (0.098 R)
• M11: 8,347,262 km (0.114 R)
• M12: 8,808,323 km (0.112 R)
• M13: 10,866,789 km (0.093 R)
• M14: 16,789,219 km (0.069 R)
• M15: 19,738,242 km (0.096 R)
• M16: 21,335,200 km (0.064 R)
• M17: 21,797,307 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.9

Radius: 12

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 4.3 AU - 5.14 AU

Year: 6520 Days

Day: 5.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,262,672 km

• M1: 157,975 km (0.109 R)
• M2: 622,626 km (0.045 R)
• M3: 1,114,803 km (0.079 R)
• M4: 2,296,028 km (0.042 R)
• M5: 4,483,299 km (0.082 R)
• M6: 5,507,446 km (0.099 R)
• M7: 6,902,895 km (0.046 R)
• M8: 8,934,583 km (0.102 R)
• M9: 10,808,446 km (0.114 R)
• M10: 11,563,167 km (0.03 R)
• M11: 11,976,806 km (0.047 R)
• M12: 12,882,621 km (0.111 R)
• M13: 13,377,341 km (0.093 R)
• M14: 16,733,569 km (0.101 R)
• M15: 19,238,735 km (0.08 R)
• M16: 19,755,147 km (0.057 R)
• M17: 26,537,465 km (0.07 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 26.4

Radius: 7.8

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 10.23 AU - 10.91 AU

Year: 21850 Days

Day: 22.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,262,672 km

• M1: 106,364 km (0.072 R)
• M2: 686,953 km (0.104 R)
• M3: 1,046,886 km (0.089 R)
• M4: 1,291,927 km (0.092 R)
• M5: 2,953,511 km (0.118 R)
• M6: 6,571,386 km (0.102 R)
• M7: 8,982,455 km (0.068 R)
• M8: 12,840,284 km (0.08 R)
• M9: 13,389,309 km (0.072 R)
• M10: 15,573,886 km (0.115 R)
• M11: 17,016,758 km (0.081 R)
• M12: 17,862,584 km (0.096 R)
• M13: 25,979,465 km (0.113 R)
• M14: 26,455,785 km (0.073 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 214 - 14,913 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit