🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.47 AU - 0.61 AU

Year: 260 Days

Day: 33.1 Hours

Environment

Temp: -128 °C

Axial Tilt: 36 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,899,344 km

• M1: 439,369 km (0.077 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.18

Radius: 0.5

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.6 AU - 0.66 AU

Year: 328 Days

Day: 27.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 110.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,899,344 km

• M1: 58,044 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.6

Radius: 11.3

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.74 AU - 1.18 AU

Year: 617 Days

Day: 10.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,899,344 km

• M1: 140,472 km (0.074 R)
• M2: 505,641 km (0.073 R)
• M3: 891,005 km (0.064 R)
• M4: 1,424,621 km (0.112 R)
• M5: 2,371,425 km (0.101 R)
• M6: 2,734,350 km (0.118 R)
• M7: 3,097,723 km (0.114 R)
• M8: 4,419,121 km (0.073 R)
• M9: 4,822,437 km (0.101 R)
• M10: 6,302,109 km (0.044 R)
• M11: 7,377,269 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.6

Radius: 13.6

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.3 AU - 2.14 AU

Year: 1480 Days

Day: 7.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,899,344 km

• M1: 169,195 km (0.084 R)
• M2: 635,941 km (0.103 R)
• M3: 1,472,791 km (0.104 R)
• M4: 2,074,474 km (0.065 R)
• M5: 2,880,208 km (0.068 R)
• M6: 3,445,239 km (0.106 R)
• M7: 4,345,519 km (0.098 R)
• M8: 5,007,938 km (0.093 R)
• M9: 5,760,266 km (0.107 R)
• M10: 6,460,384 km (0.117 R)
• M11: 8,751,027 km (0.044 R)
• M12: 9,611,813 km (0.063 R)
• M13: 10,216,487 km (0.116 R)
• M14: 10,704,326 km (0.099 R)
• M15: 11,539,381 km (0.039 R)
• M16: 12,339,580 km (0.063 R)
• M17: 14,264,307 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.4

Radius: 11.8

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.55 AU - 1.95 AU

Year: 1519 Days

Day: 14.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,899,344 km

• M1: 147,952 km (0.095 R)
• M2: 715,676 km (0.099 R)
• M3: 1,944,174 km (0.12 R)
• M4: 3,274,997 km (0.051 R)
• M5: 3,740,545 km (0.079 R)
• M6: 4,350,904 km (0.086 R)
• M7: 5,669,161 km (0.114 R)
• M8: 9,474,931 km (0.108 R)
• M9: 10,273,185 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.3

Radius: 8.6

Gravity: 7.67 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.23 AU - 3.11 AU

Year: 2862 Days

Day: 13.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 72,899,344 km

• M1: 106,962 km (0.057 R)
• M2: 385,963 km (0.074 R)
• M3: 664,065 km (0.108 R)
• M4: 1,351,318 km (0.109 R)
• M5: 1,620,594 km (0.103 R)
• M6: 2,625,742 km (0.106 R)
• M7: 4,079,684 km (0.037 R)
• M8: 4,763,047 km (0.106 R)
• M9: 6,633,768 km (0.077 R)
• M10: 7,183,690 km (0.065 R)
• M11: 9,440,074 km (0.074 R)
• M12: 10,362,944 km (0.102 R)
• M13: 10,826,697 km (0.077 R)
• M14: 11,425,837 km (0.09 R)
• M15: 12,301,433 km (0.119 R)
• M16: 12,603,022 km (0.082 R)
• M17: 13,311,069 km (0.057 R)
• M18: 13,674,891 km (0.083 R)
• M19: 14,045,295 km (0.045 R)
• M20: 14,470,004 km (0.102 R)
• M21: 15,147,682 km (0.11 R)
• M22: 15,444,634 km (0.109 R)
• M23: 16,306,766 km (0.047 R)
• M24: 18,293,875 km (0.117 R)
• M25: 18,743,865 km (0.107 R)

Asteroid Belt

Center: 3.88 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.8

Radius: 10.8

Gravity: 7.65 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 4.75 AU - 5.41 AU

Year: 7511 Days

Day: 13.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 72,899,344 km

• M1: 134,638 km (0.102 R)
• M2: 799,900 km (0.059 R)
• M3: 1,310,029 km (0.103 R)
• M4: 2,063,104 km (0.083 R)
• M5: 3,374,330 km (0.087 R)
• M6: 3,781,834 km (0.098 R)
• M7: 7,705,637 km (0.071 R)
• M8: 9,634,252 km (0.071 R)
• M9: 10,310,285 km (0.05 R)
• M10: 11,542,523 km (0.051 R)
• M11: 13,571,220 km (0.093 R)
• M12: 15,761,482 km (0.082 R)
• M13: 18,033,275 km (0.044 R)
• M14: 19,360,358 km (0.048 R)
• M15: 23,992,656 km (0.084 R)
• M16: 26,611,217 km (0.03 R)
• M17: 27,175,949 km (0.111 R)
• M18: 27,652,568 km (0.052 R)
• M19: 29,715,672 km (0.098 R)
• M20: 32,730,518 km (0.095 R)
• M21: 33,596,839 km (0.087 R)
• M22: 37,098,626 km (0.117 R)
• M23: 38,278,206 km (0.099 R)
• M24: 39,118,646 km (0.07 R)
• M25: 41,462,097 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.1

Radius: 9.5

Gravity: 7.35 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 4.82 AU - 5.38 AU

Year: 7556 Days

Day: 13.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,899,344 km

• M1: 118,182 km (0.081 R)
• M2: 694,882 km (0.085 R)
• M3: 1,579,305 km (0.093 R)
• M4: 2,338,664 km (0.065 R)
• M5: 3,107,447 km (0.096 R)
• M6: 3,435,964 km (0.104 R)
• M7: 3,861,121 km (0.035 R)
• M8: 4,374,391 km (0.112 R)
• M9: 5,138,836 km (0.06 R)
• M10: 6,123,340 km (0.102 R)
• M11: 6,571,834 km (0.034 R)
• M12: 7,079,270 km (0.096 R)
• M13: 7,690,827 km (0.118 R)
• M14: 8,213,372 km (0.111 R)
• M15: 10,446,719 km (0.075 R)
• M16: 11,138,309 km (0.034 R)
• M17: 12,558,143 km (0.071 R)
• M18: 15,753,254 km (0.082 R)
• M19: 16,662,510 km (0.065 R)
• M20: 17,952,044 km (0.093 R)
• M21: 21,269,526 km (0.036 R)
• M22: 28,044,963 km (0.106 R)
• M23: 28,897,821 km (0.099 R)
• M24: 33,953,930 km (0.078 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 475.5

Radius: 4.3

Gravity: 25.72 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 9.67 AU - 11.45 AU

Year: 22512 Days

Day: 20.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 72,899,344 km

• M1: 54,005 km (0.066 R)
• M2: 209,886 km (0.098 R)
• M3: 699,669 km (0.101 R)
• M4: 1,098,796 km (0.107 R)
• M5: 1,393,803 km (0.112 R)
• M6: 2,161,240 km (0.093 R)
• M7: 2,395,959 km (0.093 R)
• M8: 2,695,155 km (0.107 R)
• M9: 3,713,468 km (0.058 R)
• M10: 7,425,141 km (0.067 R)
• M11: 8,835,250 km (0.093 R)
• M12: 9,603,286 km (0.113 R)
• M13: 11,021,773 km (0.072 R)
• M14: 12,506,831 km (0.116 R)
• M15: 13,402,473 km (0.111 R)
• M16: 20,806,521 km (0.072 R)
• M17: 22,061,048 km (0.09 R)
• M18: 25,687,600 km (0.079 R)
• M19: 31,279,718 km (0.044 R)
• M20: 38,338,194 km (0.066 R)
• M21: 40,808,953 km (0.08 R)
• M22: 43,849,230 km (0.103 R)
• M23: 49,695,964 km (0.099 R)
• M24: 50,718,316 km (0.052 R)
• M25: 59,026,383 km (0.106 R)
• M26: 61,528,707 km (0.096 R)
• M27: 65,515,041 km (0.088 R)
• M28: 66,332,593 km (0.09 R)
• M29: 66,537,991 km (0.099 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 204 - 17,982 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit