starbirth summary table

the age of the objects increases as you go down the table

object picture age size otherinfo distance
initial collapse of a molecular cloud (phase 1 of stellar birth)
B335 105 years cloud size = 6000 au core mass = 0.4 mass(sun)
EGGs... are these a special case?
Evaporating Gaseous Globules Eagle nebula is 2 x 106 yrs old each EGG is 50-100 au uv starlight from upper right is evaporating the birth trappings of the central protostar 7000 c-yr
in the Eagle Nebula
EGGs will live only 10,000 more years
the Herbig-Haro objects (phase 2 of the starbirth process)
HH30 jet&disk age of the jet = 20,000 yr disk = 500 au jet velocity = 300 km/s 450 c-yr
jet = 1600 au
HH34 jet jet = 5000 au jet velocity = 200 km/s 1500 c-yr
HH47 jet jet = 30,000 au = .5 c-yr 1500 c-yr
HH1-2 jet jet = 1 c-yr 1500 c-yr
the Orion proplyds (phase 4 of stellar birth)
Orion edge-on proplyd (star hidden by dust) 105-106 yr disk = 1400 au 1500 c-yr
Orion face-on proplyd with star visible in center 106 years disk = 600 au mass(protostar)/mass(sun) = 1.2 1500 c-yr
Orion mosaic 105-106 yrs disk diameters = 100 - 1400 au mass(protostars)/mass(sun) = 0.3 - 1.5

mass(disks)/mass(earth) = 0.1 - 700

1500 c-yr
containing 153 proplyds like these disk diameters = 150 - 650 au
young main sequence stars with disks which may contain protoplanetary objects (early phase 5 of stellar birth)
Warped disk around Beta Pictoris 100 million yrs disk diameter = 1000 au pink-white inner disk is tilted slightly to red-yellow-green outer disk 50 c-yr
may indicate presence of a planet disk thickness = 10 au warping planet sweeps out 25 au clear zone around star
planet mass = 0.05 - 20 mass(jupiter)
medium-old main sequence stars with disks containing planetary- or comet-like objects (late phase 5 of stellar birth)
comets in the inner Kuiper belt 4.5 billion years diameter = 60 - 200 miles about 30 discovered so far 50 - 500 au?
there may be 200 million of these in the inner Kuiper belt
Pluto and its companion Charon 4.5 billion years Pluto's diameter = 2300 km Pluto is probably the largest and nearest of the comet-like objects in the Kuiper belt 40 au from the sun
Charon's diameter = 1300 km
planets around other sun-like stars
and now 9 extra-solar planets (around stars like the sun)!
51 Peg 70 Vir 47 UMa
HR3522 HR5185 HR458
HD 114672 16 Cyg Lalande 22185