🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.5 AU - 0.78 AU

Year: 336 Days

Day: 21.2 Hours

Environment

Temp: -131 °C

Axial Tilt: 10.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189

Radius: 12.5

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.83 AU - 1.19 AU

Year: 666 Days

Day: 12.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,259,597 km

• M1: 155,582 km (0.108 R)
• M2: 547,977 km (0.115 R)
• M3: 1,100,442 km (0.104 R)
• M4: 1,571,675 km (0.06 R)
• M5: 3,229,818 km (0.101 R)
• M6: 3,876,829 km (0.119 R)
• M7: 4,664,312 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.5

Radius: 9

Gravity: 10.59 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.92 AU - 1.28 AU

Year: 757 Days

Day: 11.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 122.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,259,597 km

• M1: 111,899 km (0.086 R)
• M2: 443,109 km (0.03 R)
• M3: 812,915 km (0.083 R)
• M4: 1,115,402 km (0.041 R)
• M5: 1,440,777 km (0.108 R)
• M6: 1,875,209 km (0.119 R)
• M7: 2,256,684 km (0.108 R)
• M8: 2,539,424 km (0.097 R)
• M9: 3,190,474 km (0.115 R)
• M10: 3,678,761 km (0.075 R)
• M11: 4,428,396 km (0.114 R)
• M12: 5,680,082 km (0.1 R)
• M13: 6,083,397 km (0.115 R)
• M14: 6,992,803 km (0.112 R)
• M15: 7,291,999 km (0.046 R)
• M16: 7,940,655 km (0.07 R)
• M17: 8,497,309 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.7

Radius: 10

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.61 AU - 1.95 AU

Year: 1558 Days

Day: 14.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,259,597 km

• M1: 124,316 km (0.087 R)
• M2: 666,309 km (0.093 R)
• M3: 1,106,426 km (0.087 R)
• M4: 2,666,283 km (0.101 R)
• M5: 4,406,405 km (0.094 R)
• M6: 6,753,147 km (0.064 R)
• M7: 7,065,358 km (0.104 R)
• M8: 9,830,674 km (0.096 R)
• M9: 10,169,962 km (0.074 R)
• M10: 10,709,712 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511

Radius: 9.2

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.61 AU - 2.47 AU

Year: 1911 Days

Day: 6.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,259,597 km

• M1: 117,734 km (0.068 R)
• M2: 619,335 km (0.079 R)
• M3: 1,435,990 km (0.101 R)
• M4: 2,367,835 km (0.104 R)
• M5: 2,950,070 km (0.08 R)
• M6: 3,591,396 km (0.106 R)
• M7: 4,714,128 km (0.061 R)
• M8: 5,128,813 km (0.09 R)
• M9: 6,775,736 km (0.111 R)
• M10: 7,090,041 km (0.032 R)
• M11: 8,004,832 km (0.078 R)
• M12: 8,840,935 km (0.119 R)
• M13: 9,767,245 km (0.091 R)
• M14: 10,442,829 km (0.033 R)
• M15: 10,933,959 km (0.09 R)
• M16: 11,924,745 km (0.106 R)
• M17: 13,999,818 km (0.072 R)
• M18: 14,339,255 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.8

Radius: 9.8

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 2.2 AU - 2.9 AU

Year: 2671 Days

Day: 9.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,259,597 km

• M1: 121,922 km (0.043 R)
• M2: 550,969 km (0.088 R)
• M3: 899,532 km (0.069 R)
• M4: 1,318,406 km (0.088 R)
• M5: 2,088,087 km (0.107 R)
• M6: 2,503,520 km (0.113 R)
• M7: 2,973,706 km (0.077 R)
• M8: 3,976,461 km (0.119 R)
• M9: 4,472,677 km (0.109 R)
• M10: 5,054,463 km (0.097 R)
• M11: 6,881,951 km (0.115 R)
• M12: 8,946,252 km (0.081 R)
• M13: 9,452,042 km (0.11 R)
• M14: 10,228,156 km (0.033 R)
• M15: 13,152,645 km (0.045 R)
• M16: 13,586,479 km (0.108 R)
• M17: 14,209,853 km (0.089 R)
• M18: 15,227,866 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550

Radius: 10.2

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 4.1 AU - 4.56 AU

Year: 5911 Days

Day: 14.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,259,597 km

• M1: 127,158 km (0.088 R)
• M2: 473,477 km (0.101 R)
• M3: 1,239,718 km (0.095 R)
• M4: 1,910,215 km (0.115 R)
• M5: 2,628,883 km (0.106 R)
• M6: 5,213,486 km (0.113 R)
• M7: 5,615,006 km (0.056 R)
• M8: 7,360,664 km (0.099 R)
• M9: 9,029,877 km (0.106 R)
• M10: 9,780,709 km (0.104 R)
• M11: 11,742,535 km (0.042 R)
• M12: 13,629,712 km (0.06 R)
• M13: 14,117,701 km (0.043 R)
• M14: 15,417,856 km (0.03 R)
• M15: 17,169,048 km (0.065 R)
• M16: 20,073,491 km (0.047 R)
• M17: 22,083,338 km (0.114 R)
• M18: 23,831,988 km (0.07 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.5

Radius: 11.3

Gravity: 7.72 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 4.19 AU - 5.25 AU

Year: 6727 Days

Day: 13.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 68,259,597 km

• M1: 141,071 km (0.12 R)
• M2: 581,337 km (0.085 R)
• M3: 973,733 km (0.099 R)
• M4: 1,614,909 km (0.103 R)
• M5: 2,503,221 km (0.042 R)
• M6: 3,619,520 km (0.086 R)
• M7: 4,276,554 km (0.083 R)
• M8: 5,730,197 km (0.08 R)
• M9: 7,568,455 km (0.081 R)
• M10: 7,929,734 km (0.118 R)
• M11: 8,730,681 km (0.102 R)
• M12: 11,458,449 km (0.077 R)
• M13: 12,426,497 km (0.092 R)
• M14: 14,710,108 km (0.113 R)
• M15: 15,788,110 km (0.117 R)
• M16: 16,714,869 km (0.118 R)
• M17: 18,676,546 km (0.093 R)
• M18: 19,338,517 km (0.05 R)
• M19: 22,471,395 km (0.091 R)
• M20: 23,814,186 km (0.118 R)
• M21: 25,927,854 km (0.107 R)
• M22: 26,475,233 km (0.11 R)
• M23: 28,259,487 km (0.113 R)
• M24: 33,122,165 km (0.091 R)
• M25: 34,859,595 km (0.061 R)
• M26: 41,543,628 km (0.116 R)

Asteroid Belt

Center: 6.67 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 720.2

Radius: 5

Gravity: 28.81 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 7.89 AU - 9.33 AU

Year: 16573 Days

Day: 22.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 68,259,597 km

• M1: 62,682 km (0.101 R)
• M2: 241,451 km (0.101 R)
• M3: 632,649 km (0.087 R)
• M4: 891,903 km (0.1 R)
• M5: 1,674,299 km (0.092 R)
• M6: 1,830,779 km (0.116 R)
• M7: 2,054,727 km (0.072 R)
• M8: 2,535,385 km (0.092 R)
• M9: 2,838,320 km (0.062 R)
• M10: 3,061,969 km (0.053 R)
• M11: 3,658,566 km (0.083 R)
• M12: 3,984,390 km (0.096 R)
• M13: 4,361,676 km (0.094 R)
• M14: 5,078,848 km (0.084 R)
• M15: 7,052,642 km (0.092 R)
• M16: 8,134,833 km (0.057 R)
• M17: 10,564,003 km (0.111 R)
• M18: 10,920,645 km (0.113 R)
• M19: 16,632,142 km (0.088 R)
• M20: 21,411,195 km (0.082 R)
• M21: 21,982,061 km (0.111 R)
• M22: 24,470,771 km (0.108 R)
• M23: 24,885,606 km (0.104 R)
• M24: 25,305,228 km (0.092 R)
• M25: 29,999,160 km (0.074 R)
• M26: 30,355,203 km (0.113 R)
• M27: 31,318,015 km (0.114 R)
• M28: 34,718,075 km (0.112 R)
• M29: 35,110,321 km (0.118 R)
• M30: 37,116,429 km (0.081 R)
• M31: 39,480,972 km (0.119 R)
• M32: 46,854,352 km (0.087 R)
• M33: 52,648,876 km (0.111 R)
• M34: 54,388,101 km (0.088 R)
• M35: 57,797,437 km (0.097 R)
• M36: 64,445,716 km (0.106 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: 179 - 15,853 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit