What does UGSS mean in ASTRONOMY
U Gem is a type of variable star. It changes in brightness over a certain period of time and is also known as SS Cygnus subtype.
UGSS meaning in Astronomy in Academic & Science
UGSS mostly used in an acronym Astronomy in Category Academic & Science that means U Gem variable type star (SS Cygnus subtype)
Shorthand: UGSS,
Full Form: U Gem variable type star (SS Cygnus subtype)
For more information of "U Gem variable type star (SS Cygnus subtype)", see the section below.
Essential Questions and Answers on U Gem variable type star (SS Cygnus subtype) in "SCIENCE»ASTRO"
What is U Gem?
How does the U Gem vary in brightness?
The U Gem's brightness usually varies between 8 and 10 magnitude over a time-period of about 0.2 days.
How do I identify a U Gem star?
A U Gem can be identified by its light curve, which shows its fluctuations in brightness over time, as well as its spectral class which is B6-B9 with some emission lines in the spectrum.
What are the characteristics of a U Gem variable star?
A U Gem variable star has an average absolute magnitude of -2.8 and an average colour index (B-V) of 0.35. Its temperature range is typically 9000K - 11000K.
Are there any other types of variable stars similar to a U Gem?
Yes, other types of variable stars commonly found in galaxies include RR Lyrae, W Virginis, Cepheid/dwarf Cepheids, Delta Scuti and SX Phoenicis stars.
What is the difference between a U Gem and other types of variable stars?
The main differences between a U Gem Star and other types of Variable Stars are their periods, shapes, amplitudes and light curves.
Why do some scientists classify the U Gemini Variable Star as an SS Cygnus Subtype?
This classification system was developed by American astronomer Edward C. Pickering who divided this type of variable stars into two main groups based on their periodicity and amplitude variability; one group was SS Cygni while the other group was RV Tauri.
Why did Edward Pickering classify these two groups separately?
Pickering's classification system was based on the shape, amplitude and its light curve which can differentiate these two types from each other; thus he classified them separately according to their different characteristics.