🌌 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: 11.9

Radius: 13.9

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.7 AU - 0.74 AU

Year: 407 Days

Day: 7.6 Hours

Environment

Temp: -152 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 8,249,082 km

• M1: 173,534 km (0.114 R)
• M2: 650,900 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.5

Radius: 10.6

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.63 AU - 1.01 AU

Year: 495 Days

Day: 14.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 8,249,082 km

• M1: 137,480 km (0.043 R)
• M2: 468,391 km (0.115 R)
• M3: 1,003,802 km (0.097 R)
• M4: 1,692,550 km (0.081 R)
• M5: 2,055,026 km (0.101 R)
• M6: 2,413,612 km (0.118 R)
• M7: 2,939,897 km (0.108 R)
• M8: 3,293,696 km (0.099 R)
• M9: 4,631,999 km (0.033 R)
• M10: 5,286,938 km (0.099 R)
• M11: 5,695,490 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.4

Radius: 11.8

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.86 AU - 1.22 AU

Year: 707 Days

Day: 6.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 8,249,082 km

• M1: 146,756 km (0.068 R)
• M2: 586,424 km (0.072 R)
• M3: 1,101,340 km (0.097 R)
• M4: 1,694,645 km (0.118 R)
• M5: 2,083,300 km (0.071 R)
• M6: 3,144,846 km (0.061 R)
• M7: 3,639,716 km (0.034 R)
• M8: 4,953,485 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786.5

Radius: 9

Gravity: 9.71 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.02 AU - 1.4 AU

Year: 888 Days

Day: 13.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 8,249,082 km

• M1: 111,899 km (0.102 R)
• M2: 531,671 km (0.112 R)
• M3: 854,054 km (0.117 R)
• M4: 1,210,845 km (0.116 R)
• M5: 1,582,147 km (0.067 R)
• M6: 2,048,743 km (0.094 R)
• M7: 2,397,755 km (0.116 R)
• M8: 2,950,968 km (0.08 R)
• M9: 3,528,266 km (0.114 R)
• M10: 4,001,145 km (0.116 R)
• M11: 4,429,892 km (0.109 R)
• M12: 5,576,709 km (0.053 R)
• M13: 6,027,897 km (0.099 R)
• M14: 6,795,782 km (0.08 R)
• M15: 7,383,253 km (0.072 R)
• M16: 7,701,747 km (0.072 R)
• M17: 9,463,412 km (0.043 R)
• M18: 9,987,154 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.7

Radius: 13.9

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.2 AU - 1.48 AU

Year: 1034 Days

Day: 6.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 8,249,082 km

• M1: 173,982 km (0.08 R)
• M2: 678,576 km (0.056 R)
• M3: 1,166,714 km (0.096 R)
• M4: 1,647,222 km (0.066 R)
• M5: 2,164,083 km (0.06 R)
• M6: 2,709,217 km (0.078 R)
• M7: 3,267,517 km (0.096 R)
• M8: 3,757,450 km (0.086 R)
• M9: 4,375,439 km (0.098 R)
• M10: 5,512,981 km (0.025 R)
• M11: 7,235,451 km (0.028 R)
• M12: 7,788,065 km (0.08 R)
• M13: 8,418,171 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.3

Radius: 11.2

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.12 AU - 1.84 AU

Year: 1201 Days

Day: 11.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 8,249,082 km

• M1: 139,276 km (0.059 R)
• M2: 739,911 km (0.089 R)
• M3: 1,102,836 km (0.061 R)
• M4: 2,150,619 km (0.11 R)
• M5: 2,653,268 km (0.096 R)
• M6: 3,275,894 km (0.083 R)
• M7: 3,912,583 km (0.11 R)
• M8: 4,540,295 km (0.074 R)
• M9: 5,473,786 km (0.087 R)
• M10: 6,394,411 km (0.084 R)
• M11: 6,880,006 km (0.095 R)
• M12: 8,083,222 km (0.066 R)
• M13: 10,613,819 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.7

Radius: 10.9

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.38 AU - 2.08 AU

Year: 1517 Days

Day: 13.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 8,249,082 km

• M1: 135,536 km (0.102 R)
• M2: 674,836 km (0.068 R)
• M3: 1,307,186 km (0.057 R)
• M4: 1,725,013 km (0.114 R)
• M5: 2,113,519 km (0.106 R)
• M6: 2,966,526 km (0.105 R)
• M7: 3,366,700 km (0.095 R)
• M8: 3,785,574 km (0.072 R)
• M9: 4,164,057 km (0.081 R)
• M10: 4,830,964 km (0.054 R)
• M11: 6,035,077 km (0.033 R)
• M12: 8,172,232 km (0.067 R)
• M13: 8,623,120 km (0.045 R)
• M14: 8,964,204 km (0.1 R)
• M15: 9,873,459 km (0.044 R)
• M16: 12,454,172 km (0.037 R)
• M17: 14,091,072 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.8

Radius: 10.9

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.23 AU - 2.23 AU

Year: 2221 Days

Day: 11.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 8,249,082 km

• M1: 135,536 km (0.111 R)
• M2: 2,232,748 km (0.08 R)
• M3: 4,724,600 km (0.078 R)
• M4: 5,759,518 km (0.04 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 409 - 15,649 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit