🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923

Radius: 13.2

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.68 AU - 0.68 AU

Year: 368 Days

Day: 13.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 19,007,574 km

• M1: 164,258 km (0.079 R)
• M2: 645,664 km (0.11 R)
• M3: 1,075,459 km (0.11 R)
• M4: 1,488,050 km (0.086 R)
• M5: 2,218,536 km (0.108 R)
• M6: 2,742,428 km (0.08 R)
• M7: 3,325,411 km (0.113 R)
• M8: 4,003,389 km (0.074 R)
• M9: 4,596,095 km (0.108 R)
• M10: 5,439,528 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.3

Radius: 12.8

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.62 AU - 0.74 AU

Year: 368 Days

Day: 13.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 19,007,574 km

• M1: 159,172 km (0.079 R)
• M2: 911,350 km (0.104 R)
• M3: 1,470,996 km (0.079 R)
• M4: 2,997,493 km (0.102 R)
• M5: 3,395,572 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.5

Radius: 8

Gravity: 12.77 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.7 AU - 0.84 AU

Year: 443 Days

Day: 9.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 19,007,574 km

• M1: 99,483 km (0.089 R)
• M2: 424,858 km (0.087 R)
• M3: 725,699 km (0.096 R)
• M4: 980,913 km (0.062 R)
• M5: 1,284,896 km (0.114 R)
• M6: 1,689,409 km (0.048 R)
• M7: 2,061,758 km (0.111 R)
• M8: 2,429,469 km (0.108 R)
• M9: 2,722,831 km (0.098 R)
• M10: 3,017,389 km (0.098 R)
• M11: 3,593,790 km (0.096 R)
• M12: 4,072,652 km (0.101 R)
• M13: 5,305,937 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.8

Radius: 8.6

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.74 AU - 1.82 AU

Year: 1558 Days

Day: 12 Hours

Environment

Temp: -195 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 19,007,574 km

• M1: 107,860 km (0.118 R)
• M2: 375,491 km (0.062 R)
• M3: 743,651 km (0.105 R)
• M4: 1,173,147 km (0.04 R)
• M5: 1,594,564 km (0.093 R)
• M6: 2,469,113 km (0.044 R)
• M7: 2,912,521 km (0.114 R)
• M8: 3,245,675 km (0.053 R)
• M9: 3,868,003 km (0.092 R)
• M10: 4,755,118 km (0.086 R)
• M11: 5,145,718 km (0.114 R)
• M12: 5,481,116 km (0.102 R)
• M13: 6,175,251 km (0.114 R)
• M14: 6,815,679 km (0.086 R)
• M15: 7,382,655 km (0.109 R)
• M16: 7,810,056 km (0.028 R)
• M17: 8,714,525 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.4

Radius: 12.3

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.67 AU - 2.15 AU

Year: 1732 Days

Day: 10.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 19,007,574 km

• M1: 153,039 km (0.069 R)
• M2: 540,647 km (0.064 R)
• M3: 1,083,687 km (0.105 R)
• M4: 1,603,839 km (0.064 R)
• M5: 2,040,665 km (0.067 R)
• M6: 2,651,921 km (0.066 R)
• M7: 3,334,088 km (0.08 R)
• M8: 4,224,345 km (0.105 R)
• M9: 5,467,353 km (0.11 R)
• M10: 5,908,069 km (0.119 R)
• M11: 7,074,483 km (0.102 R)
• M12: 8,031,162 km (0.088 R)
• M13: 9,297,208 km (0.095 R)
• M14: 11,125,743 km (0.113 R)
• M15: 11,874,481 km (0.092 R)
• M16: 12,938,271 km (0.105 R)
• M17: 13,808,781 km (0.107 R)
• M18: 14,454,146 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.6

Radius: 14.9

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.76 AU - 2.88 AU

Year: 2318 Days

Day: 10.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 19,007,574 km

• M1: 186,549 km (0.107 R)
• M2: 681,119 km (0.109 R)
• M3: 1,145,920 km (0.095 R)
• M4: 2,241,574 km (0.071 R)
• M5: 2,842,509 km (0.087 R)
• M6: 4,072,802 km (0.072 R)
• M7: 6,061,706 km (0.104 R)
• M8: 7,387,592 km (0.109 R)
• M9: 7,963,095 km (0.104 R)
• M10: 8,966,597 km (0.08 R)
• M11: 13,394,096 km (0.114 R)
• M12: 14,206,263 km (0.081 R)
• M13: 14,718,635 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.6

Radius: 13.8

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 3.31 AU - 3.39 AU

Year: 4022 Days

Day: 12 Hours

Environment

Temp: -212 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 19,007,574 km

• M1: 171,589 km (0.069 R)
• M2: 644,019 km (0.118 R)
• M3: 1,353,113 km (0.064 R)
• M4: 1,987,707 km (0.105 R)
• M5: 2,666,283 km (0.098 R)
• M6: 3,596,034 km (0.102 R)
• M7: 4,059,488 km (0.032 R)
• M8: 5,450,748 km (0.084 R)
• M9: 8,628,207 km (0.097 R)
• M10: 11,170,473 km (0.091 R)
• M11: 11,660,855 km (0.069 R)
• M12: 13,818,954 km (0.112 R)
• M13: 15,672,771 km (0.051 R)
• M14: 17,807,383 km (0.11 R)
• M15: 19,739,888 km (0.115 R)
• M16: 21,670,897 km (0.04 R)
• M17: 25,291,465 km (0.089 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95.6

Radius: 8.9

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 3.78 AU - 5.62 AU

Year: 6684 Days

Day: 12.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 19,007,574 km

• M1: 110,702 km (0.069 R)
• M2: 413,040 km (0.054 R)
• M3: 992,283 km (0.101 R)
• M4: 1,602,642 km (0.09 R)
• M5: 2,361,253 km (0.086 R)
• M6: 2,813,936 km (0.084 R)
• M7: 3,932,778 km (0.104 R)
• M8: 4,212,826 km (0.096 R)
• M9: 5,087,674 km (0.111 R)
• M10: 5,617,849 km (0.115 R)
• M11: 6,264,710 km (0.053 R)
• M12: 7,222,884 km (0.078 R)
• M13: 8,771,372 km (0.098 R)
• M14: 9,112,754 km (0.068 R)
• M15: 9,427,658 km (0.116 R)
• M16: 10,491,747 km (0.112 R)
• M17: 11,391,130 km (0.054 R)
• M18: 11,797,886 km (0.052 R)
• M19: 12,468,683 km (0.089 R)
• M20: 16,829,461 km (0.071 R)
• M21: 18,335,463 km (0.095 R)
• M22: 18,725,465 km (0.118 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 470 - 15,194 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit