This is a list of stars with
proplyds (ionized
protoplanetary discs
A protoplanetary disk is a rotating circumstellar disc of dense gas and dust surrounding a young newly formed star, a T Tauri star, or Herbig Ae/Be star. The protoplanetary disk may also be considered an accretion disk for the star itself, be ...
) and includes whether they have gaps or planets.
Lists of proplyds
List of proplyds with gaps
''(list is very incomplete)''
''When planets are confirmed (if no planet before), please move to the
List of extrasolar planets''
List of proplyds without gaps
:''(list is very incomplete)''
List of extremes
This list contains the largest, smallest, oldest, youngest.
:''(list is very incomplete)''
List of firsts
This list contains firsts.
:''(list is very incomplete)''
See also
*
Hypothetical astronomical object
Various unknown astronomical objects have been hypothesized throughout recorded history. For example, in the 5th century BCE, the philosopher Philolaus defined a hypothetical astronomical object which he called the "Central Fire", around which ...
*
List of exoplanet extremes
The following are lists of extremes among the known exoplanets. The properties listed here are those for which values are known reliably. It is important to note that the study of exoplanets is one of the most dynamic emerging fields of science, a ...
*
Lists of astronomical objects
*
Lists of exoplanets
References
External links
* SpaceDaily
NASA's Spitzer Digs Up Troves of Possible Solar Systems in OrionAug 17, 2006
{{Portal bar, Astronomy, Stars, Spaceflight, Outer space, Solar System
Proplyds
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Stars with proplyds