🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.51 AU - 0.61 AU

Year: 266 Days

Day: 46.2 Hours

Environment

Temp: -126 °C

Axial Tilt: 12.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.57 AU - 0.71 AU

Year: 326 Days

Day: 40.8 Hours

Environment

Temp: -138 °C

Axial Tilt: 9.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 14,745,919 km

• M1: 624,721 km (0.091 R)
• M2: 805,285 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.1

Radius: 8.2

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.2 AU - 1.22 AU

Year: 846 Days

Day: 7.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (53)

Outer Limit: 14,745,919 km

• M1: 137,780 km (0.087 R)
• M2: 238,459 km (0.045 R)
• M3: 324,478 km (0.099 R)
• M4: 440,117 km (0.103 R)
• M5: 666,758 km (0.097 R)
• M6: 735,423 km (0.031 R)
• M7: 793,916 km (0.041 R)
• M8: 915,838 km (0.12 R)
• M9: 983,756 km (0.045 R)
• M10: 1,101,040 km (0.118 R)
• M11: 1,380,788 km (0.048 R)
• M12: 1,454,241 km (0.096 R)
• M13: 1,507,647 km (0.117 R)
• M14: 1,638,396 km (0.094 R)
• M15: 1,716,336 km (0.075 R)
• M16: 1,824,196 km (0.099 R)
• M17: 1,922,781 km (0.107 R)
• M18: 1,999,376 km (0.098 R)
• M19: 2,070,883 km (0.117 R)
• M20: 2,222,875 km (0.069 R)
• M21: 2,290,942 km (0.11 R)
• M22: 2,422,738 km (0.061 R)
• M23: 2,492,899 km (0.104 R)
• M24: 2,576,674 km (0.116 R)
• M25: 2,661,346 km (0.071 R)
• M26: 2,760,230 km (0.064 R)
• M27: 2,921,048 km (0.09 R)
• M28: 2,982,084 km (0.084 R)
• M29: 3,091,889 km (0.059 R)
• M30: 3,161,153 km (0.115 R)
• M31: 3,223,984 km (0.118 R)
• M32: 3,414,871 km (0.106 R)
• M33: 3,544,123 km (0.104 R)
• M34: 3,609,497 km (0.082 R)
• M35: 3,741,293 km (0.036 R)
• M36: 3,882,065 km (0.087 R)
• M37: 3,987,082 km (0.12 R)
• M38: 4,130,996 km (0.112 R)
• M39: 4,199,811 km (0.094 R)
• M40: 4,253,516 km (0.099 R)
• M41: 4,338,488 km (0.097 R)
• M42: 4,463,103 km (0.045 R)
• M43: 4,518,005 km (0.111 R)
• M44: 4,660,123 km (0.095 R)
• M45: 4,811,816 km (0.101 R)
• M46: 4,997,766 km (0.08 R)
• M47: 5,079,297 km (0.062 R)
• M48: 5,243,705 km (0.085 R)
• M49: 5,334,810 km (0.067 R)
• M50: 5,401,530 km (0.077 R)
• M51: 5,460,173 km (0.074 R)
• M52: 5,561,002 km (0.037 R)
• M53: 5,764,604 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.4

Radius: 10.3

Gravity: 7.61 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.38 AU - 2 AU

Year: 1397 Days

Day: 14.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (70)

Outer Limit: 14,745,919 km

• M1: 129,253 km (0.12 R)
• M2: 270,024 km (0.073 R)
• M3: 367,562 km (0.102 R)
• M4: 462,706 km (0.101 R)
• M5: 568,023 km (0.115 R)
• M6: 717,771 km (0.12 R)
• M7: 984,204 km (0.108 R)
• M8: 1,099,694 km (0.108 R)
• M9: 1,281,904 km (0.083 R)
• M10: 1,409,062 km (0.084 R)
• M11: 1,474,287 km (0.089 R)
• M12: 1,559,707 km (0.088 R)
• M13: 1,765,554 km (0.109 R)
• M14: 2,043,657 km (0.09 R)
• M15: 2,118,007 km (0.056 R)
• M16: 2,247,858 km (0.03 R)
• M17: 2,380,252 km (0.091 R)
• M18: 2,515,339 km (0.084 R)
• M19: 2,653,118 km (0.111 R)
• M20: 2,840,714 km (0.049 R)
• M21: 2,996,296 km (0.09 R)
• M22: 3,179,553 km (0.066 R)
• M23: 3,366,401 km (0.098 R)
• M24: 3,948,935 km (0.061 R)
• M25: 4,015,656 km (0.045 R)
• M26: 4,096,139 km (0.097 R)
• M27: 4,396,083 km (0.047 R)
• M28: 4,802,391 km (0.075 R)
• M29: 4,887,961 km (0.103 R)
• M30: 4,959,618 km (0.101 R)
• M31: 5,104,130 km (0.055 R)
• M32: 5,220,816 km (0.12 R)
• M33: 5,456,732 km (0.101 R)
• M34: 5,590,921 km (0.046 R)
• M35: 5,893,259 km (0.104 R)
• M36: 5,969,703 km (0.115 R)
• M37: 6,139,048 km (0.077 R)
• M38: 6,466,817 km (0.095 R)
• M39: 6,545,655 km (0.049 R)
• M40: 6,848,291 km (0.055 R)
• M41: 7,106,796 km (0.118 R)
• M42: 7,417,810 km (0.086 R)
• M43: 7,533,599 km (0.117 R)
• M44: 7,666,592 km (0.089 R)
• M45: 7,750,217 km (0.045 R)
• M46: 8,104,315 km (0.07 R)
• M47: 8,309,115 km (0.104 R)
• M48: 8,377,780 km (0.033 R)
• M49: 8,637,033 km (0.092 R)
• M50: 8,828,668 km (0.113 R)
• M51: 8,951,488 km (0.115 R)
• M52: 9,234,228 km (0.061 R)
• M53: 9,501,858 km (0.095 R)
• M54: 9,627,670 km (0.113 R)
• M55: 9,735,979 km (0.104 R)
• M56: 9,899,190 km (0.066 R)
• M57: 10,209,905 km (0.032 R)
• M58: 10,301,908 km (0.094 R)
• M59: 10,523,911 km (0.102 R)
• M60: 10,616,961 km (0.068 R)
• M61: 10,859,908 km (0.042 R)
• M62: 11,066,951 km (0.077 R)
• M63: 11,142,498 km (0.05 R)
• M64: 11,465,779 km (0.116 R)
• M65: 11,792,202 km (0.067 R)
• M66: 11,888,842 km (0.053 R)
• M67: 12,005,080 km (0.115 R)
• M68: 12,316,841 km (0.117 R)
• M69: 12,493,517 km (0.031 R)
• M70: 13,148,306 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.5

Radius: 10.3

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.66 AU - 2.04 AU

Year: 1600 Days

Day: 5.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 14,745,919 km

• M1: 157,975 km (0.114 R)
• M2: 233,223 km (0.045 R)
• M3: 318,195 km (0.056 R)
• M4: 386,411 km (0.064 R)
• M5: 461,360 km (0.086 R)
• M6: 563,535 km (0.041 R)
• M7: 674,387 km (0.117 R)
• M8: 750,832 km (0.076 R)
• M9: 877,990 km (0.102 R)
• M10: 959,371 km (0.095 R)
• M11: 1,029,682 km (0.118 R)
• M12: 1,102,088 km (0.094 R)
• M13: 1,186,910 km (0.097 R)
• M14: 1,307,336 km (0.108 R)
• M15: 1,378,694 km (0.085 R)
• M16: 1,486,255 km (0.115 R)
• M17: 1,592,769 km (0.078 R)
• M18: 1,673,402 km (0.086 R)
• M19: 1,771,987 km (0.097 R)
• M20: 1,923,679 km (0.117 R)
• M21: 2,262,817 km (0.076 R)
• M22: 2,418,698 km (0.103 R)
• M23: 2,507,260 km (0.069 R)
• M24: 2,578,020 km (0.094 R)
• M25: 2,942,141 km (0.12 R)
• M26: 3,112,683 km (0.085 R)
• M27: 3,214,559 km (0.1 R)
• M28: 3,364,307 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.9

Radius: 10.8

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.51 AU - 2.29 AU

Year: 1665 Days

Day: 5.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (64)

Outer Limit: 14,745,919 km

• M1: 168,447 km (0.059 R)
• M2: 252,820 km (0.116 R)
• M3: 332,706 km (0.113 R)
• M4: 407,056 km (0.025 R)
• M5: 680,222 km (0.057 R)
• M6: 897,288 km (0.083 R)
• M7: 966,103 km (0.099 R)
• M8: 1,072,916 km (0.086 R)
• M9: 1,155,943 km (0.092 R)
• M10: 1,625,082 km (0.048 R)
• M11: 1,819,858 km (0.111 R)
• M12: 2,068,490 km (0.055 R)
• M13: 2,161,689 km (0.073 R)
• M14: 2,304,256 km (0.115 R)
• M15: 2,425,430 km (0.044 R)
• M16: 2,957,849 km (0.083 R)
• M17: 3,484,434 km (0.112 R)
• M18: 3,694,768 km (0.066 R)
• M19: 3,952,825 km (0.055 R)
• M20: 4,040,190 km (0.083 R)
• M21: 4,142,963 km (0.074 R)
• M22: 4,261,295 km (0.116 R)
• M23: 4,335,945 km (0.064 R)
• M24: 4,486,590 km (0.027 R)
• M25: 4,577,844 km (0.037 R)
• M26: 4,777,558 km (0.045 R)
• M27: 4,886,315 km (0.119 R)
• M28: 4,980,113 km (0.111 R)
• M29: 5,090,516 km (0.054 R)
• M30: 5,201,668 km (0.118 R)
• M31: 5,329,574 km (0.083 R)
• M32: 5,458,677 km (0.069 R)
• M33: 5,621,589 km (0.066 R)
• M34: 5,736,480 km (0.083 R)
• M35: 5,885,479 km (0.069 R)
• M36: 6,119,750 km (0.117 R)
• M37: 6,271,891 km (0.093 R)
• M38: 7,158,258 km (0.094 R)
• M39: 7,336,728 km (0.104 R)
• M40: 7,588,950 km (0.118 R)
• M41: 7,698,007 km (0.074 R)
• M42: 7,936,017 km (0.051 R)
• M43: 8,157,871 km (0.059 R)
• M44: 8,400,519 km (0.07 R)
• M45: 8,551,014 km (0.048 R)
• M46: 8,911,994 km (0.105 R)
• M47: 9,046,333 km (0.095 R)
• M48: 9,161,972 km (0.07 R)
• M49: 9,258,762 km (0.063 R)
• M50: 9,375,299 km (0.112 R)
• M51: 9,512,031 km (0.058 R)
• M52: 9,668,959 km (0.052 R)
• M53: 10,045,048 km (0.091 R)
• M54: 10,305,349 km (0.081 R)
• M55: 10,975,846 km (0.095 R)
• M56: 11,306,009 km (0.079 R)
• M57: 11,389,035 km (0.103 R)
• M58: 12,124,459 km (0.109 R)
• M59: 12,316,093 km (0.118 R)
• M60: 12,723,897 km (0.112 R)
• M61: 13,201,713 km (0.102 R)
• M62: 14,040,807 km (0.104 R)
• M63: 14,444,273 km (0.114 R)
• M64: 15,262,723 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258.7

Radius: 8.4

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.67 AU - 2.73 AU

Year: 2075 Days

Day: 11.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (67)

Outer Limit: 14,745,919 km

• M1: 149,149 km (0.094 R)
• M2: 231,129 km (0.062 R)
• M3: 308,620 km (0.076 R)
• M4: 361,728 km (0.107 R)
• M5: 434,881 km (0.114 R)
• M6: 543,639 km (0.111 R)
• M7: 617,390 km (0.055 R)
• M8: 769,083 km (0.068 R)
• M9: 882,179 km (0.05 R)
• M10: 940,821 km (0.113 R)
• M11: 1,197,381 km (0.099 R)
• M12: 1,296,266 km (0.054 R)
• M13: 1,475,933 km (0.114 R)
• M14: 1,537,567 km (0.111 R)
• M15: 1,663,678 km (0.053 R)
• M16: 1,755,980 km (0.071 R)
• M17: 2,013,737 km (0.096 R)
• M18: 2,072,678 km (0.068 R)
• M19: 2,162,138 km (0.107 R)
• M20: 2,334,924 km (0.043 R)
• M21: 2,407,329 km (0.067 R)
• M22: 2,618,561 km (0.116 R)
• M23: 2,693,958 km (0.113 R)
• M24: 2,791,795 km (0.104 R)
• M25: 3,002,728 km (0.052 R)
• M26: 3,230,267 km (0.093 R)
• M27: 3,299,531 km (0.114 R)
• M28: 3,534,399 km (0.111 R)
• M29: 3,629,992 km (0.118 R)
• M30: 4,120,374 km (0.118 R)
• M31: 4,195,771 km (0.062 R)
• M32: 4,411,791 km (0.103 R)
• M33: 4,709,939 km (0.12 R)
• M34: 4,921,321 km (0.114 R)
• M35: 5,490,840 km (0.031 R)
• M36: 5,924,524 km (0.083 R)
• M37: 6,282,512 km (0.095 R)
• M38: 6,617,911 km (0.117 R)
• M39: 6,824,954 km (0.108 R)
• M40: 6,899,454 km (0.093 R)
• M41: 6,959,293 km (0.076 R)
• M42: 7,094,380 km (0.114 R)
• M43: 7,428,432 km (0.083 R)
• M44: 7,597,477 km (0.112 R)
• M45: 7,767,570 km (0.085 R)
• M46: 7,923,451 km (0.114 R)
• M47: 7,986,133 km (0.095 R)
• M48: 8,064,672 km (0.076 R)
• M49: 8,285,927 km (0.099 R)
• M50: 8,477,113 km (0.069 R)
• M51: 8,685,952 km (0.107 R)
• M52: 8,831,660 km (0.085 R)
• M53: 9,092,409 km (0.081 R)
• M54: 9,158,082 km (0.103 R)
• M55: 9,256,667 km (0.09 R)
• M56: 9,488,395 km (0.113 R)
• M57: 9,655,047 km (0.099 R)
• M58: 9,805,991 km (0.103 R)
• M59: 9,974,438 km (0.095 R)
• M60: 10,059,110 km (0.079 R)
• M61: 10,280,216 km (0.042 R)
• M62: 10,348,582 km (0.103 R)
• M63: 10,710,011 km (0.079 R)
• M64: 11,268,759 km (0.113 R)
• M65: 11,409,979 km (0.041 R)
• M66: 11,516,194 km (0.097 R)
• M67: 12,106,507 km (0.079 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.3

Radius: 15

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.8 AU - 3.72 AU

Year: 3742 Days

Day: 10 Hours

Environment

Temp: -209 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (58)

Outer Limit: 14,745,919 km

• M1: 204,051 km (0.061 R)
• M2: 327,021 km (0.103 R)
• M3: 449,990 km (0.087 R)
• M4: 660,624 km (0.102 R)
• M5: 878,738 km (0.103 R)
• M6: 1,025,344 km (0.086 R)
• M7: 1,139,337 km (0.098 R)
• M8: 1,240,765 km (0.089 R)
• M9: 1,363,285 km (0.111 R)
• M10: 1,836,015 km (0.072 R)
• M11: 1,936,844 km (0.118 R)
• M12: 2,186,672 km (0.078 R)
• M13: 2,348,387 km (0.095 R)
• M14: 2,559,021 km (0.044 R)
• M15: 2,787,756 km (0.12 R)
• M16: 2,904,742 km (0.074 R)
• M17: 3,216,953 km (0.116 R)
• M18: 3,414,422 km (0.117 R)
• M19: 3,821,926 km (0.087 R)
• M20: 3,992,019 km (0.099 R)
• M21: 4,111,249 km (0.089 R)
• M22: 4,394,288 km (0.063 R)
• M23: 4,517,556 km (0.103 R)
• M24: 4,614,346 km (0.095 R)
• M25: 4,951,241 km (0.12 R)
• M26: 5,238,169 km (0.074 R)
• M27: 5,664,075 km (0.102 R)
• M28: 5,768,643 km (0.049 R)
• M29: 5,964,467 km (0.109 R)
• M30: 6,177,943 km (0.114 R)
• M31: 6,285,504 km (0.059 R)
• M32: 6,409,371 km (0.115 R)
• M33: 6,628,083 km (0.06 R)
• M34: 6,722,629 km (0.102 R)
• M35: 6,960,789 km (0.072 R)
• M36: 7,072,987 km (0.054 R)
• M37: 7,282,873 km (0.102 R)
• M38: 7,511,309 km (0.081 R)
• M39: 7,609,894 km (0.119 R)
• M40: 8,058,987 km (0.107 R)
• M41: 8,159,965 km (0.076 R)
• M42: 8,295,352 km (0.088 R)
• M43: 8,414,431 km (0.115 R)
• M44: 8,688,644 km (0.078 R)
• M45: 8,844,226 km (0.12 R)
• M46: 9,035,562 km (0.059 R)
• M47: 9,689,604 km (0.083 R)
• M48: 9,887,073 km (0.099 R)
• M49: 10,067,638 km (0.113 R)
• M50: 10,359,054 km (0.106 R)
• M51: 10,838,366 km (0.079 R)
• M52: 11,438,403 km (0.119 R)
• M53: 11,685,239 km (0.112 R)
• M54: 11,838,128 km (0.107 R)
• M55: 12,339,281 km (0.089 R)
• M56: 12,573,103 km (0.074 R)
• M57: 12,965,797 km (0.075 R)
• M58: 13,124,072 km (0.103 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.6

Radius: 14.3

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.72 AU - 3.94 AU

Year: 3864 Days

Day: 9.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (60)

Outer Limit: 14,745,919 km

• M1: 178,321 km (0.092 R)
• M2: 294,409 km (0.1 R)
• M3: 386,561 km (0.104 R)
• M4: 477,068 km (0.078 R)
• M5: 611,107 km (0.097 R)
• M6: 829,371 km (0.111 R)
• M7: 1,032,674 km (0.069 R)
• M8: 1,163,123 km (0.105 R)
• M9: 1,281,156 km (0.03 R)
• M10: 1,510,340 km (0.092 R)
• M11: 1,640,341 km (0.113 R)
• M12: 1,742,965 km (0.113 R)
• M13: 2,086,890 km (0.099 R)
• M14: 2,199,089 km (0.096 R)
• M15: 2,382,645 km (0.112 R)
• M16: 2,535,834 km (0.116 R)
• M17: 2,655,961 km (0.091 R)
• M18: 2,939,449 km (0.04 R)
• M19: 3,142,752 km (0.105 R)
• M20: 3,483,237 km (0.117 R)
• M21: 3,739,648 km (0.119 R)
• M22: 4,228,384 km (0.063 R)
• M23: 4,487,787 km (0.051 R)
• M24: 4,649,053 km (0.106 R)
• M25: 5,235,925 km (0.102 R)
• M26: 5,328,377 km (0.113 R)
• M27: 5,656,295 km (0.094 R)
• M28: 5,751,141 km (0.11 R)
• M29: 5,942,626 km (0.098 R)
• M30: 6,430,614 km (0.101 R)
• M31: 6,546,253 km (0.101 R)
• M32: 6,965,426 km (0.11 R)
• M33: 7,169,777 km (0.06 R)
• M34: 7,462,540 km (0.089 R)
• M35: 7,724,336 km (0.061 R)
• M36: 7,882,761 km (0.115 R)
• M37: 8,095,788 km (0.073 R)
• M38: 8,221,001 km (0.117 R)
• M39: 8,364,765 km (0.101 R)
• M40: 8,654,985 km (0.116 R)
• M41: 8,746,389 km (0.117 R)
• M42: 8,985,447 km (0.086 R)
• M43: 9,264,147 km (0.109 R)
• M44: 10,290,688 km (0.101 R)
• M45: 10,935,904 km (0.066 R)
• M46: 11,074,431 km (0.1 R)
• M47: 11,193,661 km (0.114 R)
• M48: 11,393,374 km (0.074 R)
• M49: 11,614,479 km (0.096 R)
• M50: 11,755,849 km (0.053 R)
• M51: 11,979,199 km (0.103 R)
• M52: 12,204,045 km (0.074 R)
• M53: 12,327,164 km (0.056 R)
• M54: 12,761,746 km (0.047 R)
• M55: 12,991,229 km (0.057 R)
• M56: 13,096,097 km (0.05 R)
• M57: 13,243,301 km (0.073 R)
• M58: 13,603,234 km (0.067 R)
• M59: 14,202,971 km (0.054 R)
• M60: 14,484,515 km (0.097 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 145 - 16,030 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit