🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.46 AU - 0.64 AU

Year: 152 Days

Day: 41.6 Hours

Environment

Temp: 209 °C

Axial Tilt: 9.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.08 AU - 1.08 AU

Year: 418 Days

Day: 43.7 Hours

Environment

Temp: 10 °C

Axial Tilt: 17.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.96

Radius: 0.98

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.88 AU - 1.4 AU

Year: 454 Days

Day: 20.6 Hours

Environment

Temp: 4 °C

Axial Tilt: 9.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Asteroid Belt

Center: 2.93 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368

Radius: 10.7

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 4.57 AU - 4.87 AU

Year: 3823 Days

Day: 13.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 97,570,355 km

• M1: 163,361 km (0.063 R)
• M2: 233,821 km (0.095 R)
• M3: 334,202 km (0.043 R)
• M4: 425,307 km (0.065 R)
• M5: 656,286 km (0.094 R)
• M6: 866,920 km (0.113 R)
• M7: 980,764 km (0.104 R)
• M8: 1,270,684 km (0.099 R)
• M9: 1,821,803 km (0.12 R)
• M10: 1,998,029 km (0.104 R)
• M11: 2,280,320 km (0.065 R)
• M12: 2,575,627 km (0.073 R)
• M13: 2,883,349 km (0.109 R)
• M14: 3,089,794 km (0.106 R)
• M15: 3,219,197 km (0.119 R)
• M16: 3,876,230 km (0.093 R)
• M17: 4,051,410 km (0.114 R)
• M18: 4,500,951 km (0.074 R)
• M19: 4,592,655 km (0.115 R)
• M20: 4,853,105 km (0.118 R)
• M21: 5,023,197 km (0.098 R)
• M22: 5,175,937 km (0.032 R)
• M23: 5,703,120 km (0.037 R)
• M24: 5,943,075 km (0.113 R)
• M25: 6,023,708 km (0.076 R)
• M26: 6,598,762 km (0.117 R)
• M27: 6,850,685 km (0.082 R)
• M28: 7,148,684 km (0.115 R)
• M29: 7,385,647 km (0.062 R)
• M30: 7,691,126 km (0.048 R)
• M31: 8,157,273 km (0.109 R)
• M32: 8,495,813 km (0.066 R)
• M33: 8,908,104 km (0.111 R)
• M34: 9,070,268 km (0.118 R)
• M35: 9,163,468 km (0.109 R)
• M36: 9,468,199 km (0.09 R)
• M37: 9,562,595 km (0.109 R)
• M38: 9,681,077 km (0.101 R)
• M39: 10,087,684 km (0.056 R)
• M40: 10,402,438 km (0.108 R)
• M41: 10,622,197 km (0.117 R)
• M42: 10,720,483 km (0.065 R)
• M43: 10,942,486 km (0.046 R)
• M44: 11,592,489 km (0.116 R)
• M45: 11,718,899 km (0.03 R)
• M46: 12,049,809 km (0.073 R)
• M47: 12,383,712 km (0.107 R)
• M48: 12,772,965 km (0.094 R)
• M49: 12,982,103 km (0.071 R)
• M50: 13,166,109 km (0.074 R)
• M51: 13,483,555 km (0.078 R)
• M52: 13,776,767 km (0.106 R)
• M53: 14,018,218 km (0.115 R)
• M54: 14,099,001 km (0.09 R)
• M55: 14,668,969 km (0.087 R)
• M56: 14,751,098 km (0.074 R)
• M57: 14,860,753 km (0.119 R)
• M58: 15,136,013 km (0.063 R)
• M59: 15,468,569 km (0.03 R)
• M60: 15,552,045 km (0.117 R)
• M61: 15,663,645 km (0.054 R)
• M62: 15,803,519 km (0.067 R)
• M63: 16,084,613 km (0.114 R)
• M64: 16,282,232 km (0.069 R)
• M65: 16,480,749 km (0.077 R)
• M66: 16,594,443 km (0.054 R)
• M67: 16,880,175 km (0.062 R)
• M68: 17,369,360 km (0.051 R)
• M69: 17,514,171 km (0.073 R)
• M70: 17,775,967 km (0.049 R)
• M71: 17,980,318 km (0.114 R)
• M72: 18,244,208 km (0.119 R)
• M73: 18,598,157 km (0.098 R)
• M74: 19,523,121 km (0.065 R)
• M75: 19,764,272 km (0.084 R)
• M76: 19,885,147 km (0.089 R)
• M77: 20,401,858 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727

Radius: 10

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.69 AU - 7.65 AU

Year: 5713 Days

Day: 5.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 97,570,355 km

• M1: 132,843 km (0.096 R)
• M2: 343,926 km (0.079 R)
• M3: 580,739 km (0.108 R)
• M4: 693,087 km (0.111 R)
• M5: 813,214 km (0.087 R)
• M6: 1,153,400 km (0.12 R)
• M7: 1,314,816 km (0.054 R)
• M8: 1,536,071 km (0.113 R)
• M9: 1,624,483 km (0.087 R)
• M10: 1,881,343 km (0.113 R)
• M11: 2,053,380 km (0.119 R)
• M12: 2,454,602 km (0.114 R)
• M13: 2,858,367 km (0.104 R)
• M14: 2,990,312 km (0.101 R)
• M15: 3,146,791 km (0.112 R)
• M16: 3,352,039 km (0.113 R)
• M17: 3,538,289 km (0.07 R)
• M18: 3,656,322 km (0.104 R)
• M19: 3,848,106 km (0.038 R)
• M20: 4,092,549 km (0.088 R)
• M21: 5,335,258 km (0.119 R)
• M22: 5,553,073 km (0.105 R)
• M23: 5,746,054 km (0.058 R)
• M24: 6,482,525 km (0.1 R)
• M25: 6,773,792 km (0.103 R)
• M26: 7,429,479 km (0.108 R)
• M27: 8,043,130 km (0.116 R)
• M28: 8,768,978 km (0.117 R)
• M29: 8,833,006 km (0.089 R)
• M30: 9,417,186 km (0.078 R)
• M31: 10,690,862 km (0.05 R)
• M32: 11,769,762 km (0.104 R)
• M33: 12,089,453 km (0.112 R)
• M34: 13,175,683 km (0.104 R)
• M35: 14,710,108 km (0.108 R)
• M36: 14,977,739 km (0.113 R)
• M37: 15,054,483 km (0.057 R)
• M38: 15,712,264 km (0.082 R)
• M39: 16,935,825 km (0.088 R)
• M40: 17,136,137 km (0.091 R)
• M41: 17,904,023 km (0.102 R)
• M42: 18,108,074 km (0.112 R)
• M43: 18,353,864 km (0.116 R)
• M44: 18,518,272 km (0.095 R)
• M45: 18,600,700 km (0.082 R)
• M46: 18,890,172 km (0.066 R)
• M47: 19,097,814 km (0.053 R)
• M48: 19,851,637 km (0.077 R)
• M49: 19,978,197 km (0.102 R)
• M50: 20,359,672 km (0.092 R)
• M51: 20,786,325 km (0.11 R)
• M52: 20,871,895 km (0.091 R)
• M53: 21,258,905 km (0.072 R)
• M54: 21,518,307 km (0.101 R)
• M55: 21,822,141 km (0.098 R)
• M56: 21,952,740 km (0.099 R)
• M57: 22,083,638 km (0.089 R)
• M58: 23,140,397 km (0.066 R)
• M59: 24,303,820 km (0.106 R)
• M60: 24,529,712 km (0.084 R)
• M61: 24,847,159 km (0.062 R)
• M62: 25,257,356 km (0.105 R)
• M63: 25,853,654 km (0.114 R)
• M64: 26,038,108 km (0.114 R)
• M65: 26,361,987 km (0.108 R)
• M66: 26,687,063 km (0.112 R)
• M67: 26,920,137 km (0.087 R)
• M68: 27,107,134 km (0.052 R)
• M69: 27,247,607 km (0.109 R)
• M70: 27,717,643 km (0.091 R)
• M71: 27,906,436 km (0.082 R)
• M72: 29,000,295 km (0.109 R)
• M73: 29,384,014 km (0.114 R)
• M74: 30,156,537 km (0.111 R)
• M75: 30,935,643 km (0.095 R)
• M76: 32,364,751 km (0.114 R)
• M77: 32,464,084 km (0.093 R)
• M78: 33,463,249 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.7

Radius: 9.7

Gravity: 6.01 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 4.97 AU - 8.17 AU

Year: 6278 Days

Day: 11.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 97,570,355 km

• M1: 125,961 km (0.077 R)
• M2: 393,293 km (0.091 R)
• M3: 521,498 km (0.113 R)
• M4: 627,713 km (0.04 R)
• M5: 795,412 km (0.072 R)
• M6: 892,052 km (0.115 R)
• M7: 1,022,352 km (0.1 R)
• M8: 1,222,364 km (0.072 R)
• M9: 1,302,848 km (0.109 R)
• M10: 1,486,255 km (0.113 R)
• M11: 1,678,189 km (0.099 R)
• M12: 1,823,000 km (0.076 R)
• M13: 1,990,998 km (0.106 R)
• M14: 2,650,276 km (0.064 R)
• M15: 2,755,892 km (0.063 R)
• M16: 2,993,005 km (0.113 R)
• M17: 3,080,968 km (0.094 R)
• M18: 3,441,349 km (0.11 R)
• M19: 3,580,027 km (0.062 R)
• M20: 3,673,525 km (0.049 R)
• M21: 3,958,958 km (0.076 R)
• M22: 4,031,363 km (0.1 R)
• M23: 4,375,588 km (0.094 R)
• M24: 4,883,922 km (0.108 R)
• M25: 5,013,922 km (0.046 R)
• M26: 5,277,514 km (0.102 R)
• M27: 5,572,521 km (0.081 R)
• M28: 5,900,738 km (0.11 R)
• M29: 6,291,638 km (0.088 R)
• M30: 6,490,154 km (0.046 R)
• M31: 6,575,874 km (0.113 R)
• M32: 6,690,914 km (0.074 R)
• M33: 7,334,933 km (0.097 R)
• M34: 7,604,209 km (0.119 R)
• M35: 8,183,153 km (0.112 R)
• M36: 8,244,937 km (0.105 R)
• M37: 8,744,744 km (0.099 R)
• M38: 8,808,023 km (0.109 R)
• M39: 8,934,882 km (0.118 R)
• M40: 9,062,190 km (0.094 R)
• M41: 9,773,977 km (0.084 R)
• M42: 10,671,863 km (0.114 R)
• M43: 11,011,002 km (0.04 R)
• M44: 11,285,065 km (0.096 R)
• M45: 11,526,666 km (0.055 R)
• M46: 12,049,959 km (0.092 R)
• M47: 12,120,419 km (0.073 R)
• M48: 12,190,880 km (0.087 R)
• M49: 12,367,854 km (0.101 R)
• M50: 12,903,564 km (0.088 R)
• M51: 13,120,032 km (0.104 R)
• M52: 13,556,559 km (0.042 R)
• M53: 14,332,074 km (0.09 R)
• M54: 14,593,721 km (0.054 R)
• M55: 14,819,165 km (0.09 R)
• M56: 15,083,804 km (0.105 R)
• M57: 15,502,827 km (0.075 R)
• M58: 15,617,719 km (0.081 R)
• M59: 16,508,275 km (0.112 R)
• M60: 17,574,758 km (0.061 R)
• M61: 17,694,586 km (0.111 R)
• M62: 19,113,073 km (0.116 R)
• M63: 22,446,712 km (0.105 R)
• M64: 22,881,294 km (0.108 R)
• M65: 23,012,192 km (0.069 R)
• M66: 24,916,124 km (0.104 R)
• M67: 25,050,911 km (0.03 R)
• M68: 25,185,849 km (0.03 R)
• M69: 25,456,471 km (0.093 R)
• M70: 25,773,469 km (0.032 R)
• M71: 26,548,685 km (0.084 R)
• M72: 26,824,245 km (0.084 R)
• M73: 26,962,323 km (0.037 R)
• M74: 27,054,476 km (0.078 R)
• M75: 27,795,733 km (0.094 R)
• M76: 28,262,479 km (0.035 R)
• M77: 29,963,855 km (0.055 R)
• M78: 30,634,502 km (0.069 R)
• M79: 30,778,864 km (0.069 R)
• M80: 31,019,866 km (0.086 R)
• M81: 31,503,965 km (0.114 R)
• M82: 31,893,069 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.7

Radius: 13.4

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 7.18 AU - 11.44 AU

Year: 10590 Days

Day: 12.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 97,570,355 km

• M1: 175,927 km (0.085 R)
• M2: 286,630 km (0.099 R)
• M3: 734,376 km (0.111 R)
• M4: 818,749 km (0.104 R)
• M5: 1,030,281 km (0.097 R)
• M6: 1,347,129 km (0.119 R)
• M7: 2,239,480 km (0.084 R)
• M8: 2,410,919 km (0.1 R)
• M9: 2,609,286 km (0.112 R)
• M10: 2,790,150 km (0.12 R)
• M11: 2,951,865 km (0.049 R)
• M12: 3,406,942 km (0.07 R)
• M13: 3,505,677 km (0.114 R)
• M14: 3,910,189 km (0.027 R)
• M15: 4,013,561 km (0.093 R)
• M16: 4,223,447 km (0.085 R)
• M17: 4,626,763 km (0.066 R)
• M18: 4,846,971 km (0.088 R)
• M19: 5,212,289 km (0.117 R)
• M20: 5,297,859 km (0.12 R)
• M21: 5,383,878 km (0.068 R)
• M22: 5,940,083 km (0.044 R)
• M23: 6,361,649 km (0.058 R)
• M24: 8,044,625 km (0.091 R)
• M25: 8,511,221 km (0.087 R)
• M26: 8,713,926 km (0.059 R)
• M27: 8,952,385 km (0.04 R)
• M28: 9,540,754 km (0.098 R)
• M29: 9,786,693 km (0.072 R)
• M30: 10,791,242 km (0.056 R)
• M31: 11,121,106 km (0.078 R)
• M32: 11,491,660 km (0.118 R)
• M33: 12,321,030 km (0.113 R)
• M34: 13,798,758 km (0.11 R)
• M35: 14,277,172 km (0.072 R)
• M36: 14,639,348 km (0.092 R)
• M37: 14,963,976 km (0.028 R)
• M38: 15,127,187 km (0.06 R)
• M39: 15,827,455 km (0.073 R)
• M40: 15,952,219 km (0.058 R)
• M41: 16,749,426 km (0.079 R)
• M42: 17,089,014 km (0.06 R)
• M43: 17,559,648 km (0.063 R)
• M44: 18,426,269 km (0.069 R)
• M45: 18,732,945 km (0.041 R)
• M46: 19,085,397 km (0.098 R)
• M47: 19,351,233 km (0.071 R)
• M48: 19,797,034 km (0.046 R)
• M49: 19,931,373 km (0.1 R)
• M50: 21,109,008 km (0.075 R)
• M51: 21,246,338 km (0.102 R)
• M52: 21,521,898 km (0.114 R)
• M53: 23,011,444 km (0.112 R)
• M54: 23,152,814 km (0.089 R)
• M55: 23,768,708 km (0.092 R)
• M56: 23,863,852 km (0.109 R)
• M57: 24,389,988 km (0.07 R)
• M58: 24,582,221 km (0.097 R)
• M59: 24,919,864 km (0.105 R)
• M60: 25,113,443 km (0.103 R)
• M61: 26,335,060 km (0.071 R)
• M62: 26,483,012 km (0.088 R)
• M63: 26,829,181 km (0.111 R)
• M64: 29,754,568 km (0.11 R)
• M65: 30,475,779 km (0.118 R)
• M66: 31,150,615 km (0.091 R)
• M67: 31,411,514 km (0.09 R)
• M68: 32,304,015 km (0.062 R)
• M69: 33,311,257 km (0.118 R)
• M70: 33,684,953 km (0.109 R)
• M71: 34,328,822 km (0.101 R)
• M72: 34,544,392 km (0.106 R)
• M73: 34,976,730 km (0.058 R)
• M74: 35,085,189 km (0.097 R)
• M75: 35,465,466 km (0.052 R)
• M76: 36,065,653 km (0.101 R)
• M77: 36,284,814 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 623.7

Radius: 4.6

Gravity: 29.48 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 17.07 AU - 20.57 AU

Year: 30436 Days

Day: 23.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 97,570,355 km

• M1: 375,341 km (0.08 R)
• M2: 1,114,953 km (0.053 R)
• M3: 1,147,416 km (0.034 R)
• M4: 1,180,327 km (0.107 R)
• M5: 1,419,235 km (0.112 R)
• M6: 1,526,347 km (0.094 R)
• M7: 1,980,526 km (0.095 R)
• M8: 2,100,205 km (0.103 R)
• M9: 2,140,746 km (0.108 R)
• M10: 2,222,426 km (0.117 R)
• M11: 2,263,715 km (0.098 R)
• M12: 3,140,807 km (0.037 R)
• M13: 3,327,655 km (0.103 R)
• M14: 3,470,222 km (0.099 R)
• M15: 3,909,740 km (0.102 R)
• M16: 4,366,762 km (0.086 R)
• M17: 4,470,583 km (0.086 R)
• M18: 5,220,068 km (0.092 R)
• M19: 5,553,073 km (0.12 R)
• M20: 5,609,322 km (0.034 R)
• M21: 6,065,446 km (0.088 R)
• M22: 6,892,124 km (0.12 R)
• M23: 7,879,469 km (0.104 R)
• M24: 7,942,600 km (0.09 R)
• M25: 9,778,465 km (0.12 R)
• M26: 10,051,032 km (0.066 R)
• M27: 11,882,559 km (0.116 R)
• M28: 14,043,051 km (0.108 R)
• M29: 14,659,993 km (0.06 R)
• M30: 14,737,784 km (0.105 R)
• M31: 14,893,665 km (0.057 R)
• M32: 16,401,761 km (0.072 R)
• M33: 16,969,485 km (0.095 R)
• M34: 18,542,806 km (0.116 R)
• M35: 20,857,384 km (0.086 R)
• M36: 21,295,855 km (0.075 R)
• M37: 21,383,819 km (0.099 R)
• M38: 22,539,762 km (0.118 R)
• M39: 22,899,395 km (0.051 R)
• M40: 23,533,540 km (0.072 R)
• M41: 25,190,337 km (0.081 R)
• M42: 26,126,819 km (0.098 R)
• M43: 26,599,399 km (0.085 R)
• M44: 31,477,486 km (0.096 R)
• M45: 32,790,058 km (0.116 R)
• M46: 33,606,713 km (0.079 R)
• M47: 34,326,727 km (0.106 R)
• M48: 34,636,844 km (0.033 R)
• M49: 34,740,366 km (0.112 R)
• M50: 35,364,039 km (0.078 R)
• M51: 36,201,338 km (0.096 R)
• M52: 37,469,479 km (0.071 R)
• M53: 37,895,385 km (0.101 R)
• M54: 38,002,197 km (0.077 R)
• M55: 38,752,132 km (0.102 R)
• M56: 38,859,692 km (0.117 R)
• M57: 39,074,964 km (0.062 R)
• M58: 40,702,888 km (0.116 R)
• M59: 41,031,106 km (0.094 R)
• M60: 41,140,761 km (0.107 R)
• M61: 42,352,803 km (0.092 R)
• M62: 42,463,505 km (0.056 R)
• M63: 42,574,507 km (0.058 R)
• M64: 44,136,608 km (0.098 R)
• M65: 46,286,628 km (0.067 R)
• M66: 46,972,684 km (0.032 R)
• M67: 47,431,800 km (0.086 R)
• M68: 54,495,961 km (0.111 R)
• M69: 55,583,388 km (0.097 R)
• M70: 56,556,223 km (0.102 R)
• M71: 56,678,145 km (0.063 R)
• M72: 56,800,217 km (0.116 R)
• M73: 57,411,923 km (0.11 R)
• M74: 57,657,114 km (0.055 R)
• M75: 59,756,121 km (0.048 R)
• M76: 61,377,912 km (0.12 R)
• M77: 61,503,275 km (0.095 R)
• M78: 65,303,360 km (0.082 R)
• M79: 68,787,943 km (0.06 R)
• M80: 69,439,891 km (0.109 R)
• M81: 71,671,442 km (0.086 R)
• M82: 73,926,630 km (0.072 R)
• M83: 74,193,513 km (0.105 R)
• M84: 74,460,695 km (0.12 R)
• M85: 75,398,224 km (0.114 R)
• M86: 75,532,414 km (0.104 R)
• M87: 77,149,716 km (0.109 R)
• M88: 80,007,335 km (0.074 R)
• M89: 81,105,084 km (0.062 R)
• M90: 81,931,612 km (0.057 R)
• M91: 83,038,038 km (0.069 R)
• M92: 85,545,448 km (0.053 R)
• M93: 87,230,818 km (0.084 R)
• M94: 91,062,767 km (0.045 R)
• M95: 93,647,818 km (0.111 R)
• M96: 94,514,888 km (0.114 R)
• M97: 96,985,796 km (0.118 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: 435 - 12,695 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit