VLT spectroscopy of massive stars in NGC55 We present the first spectroscopy study of massive stars in NGC55. The data, taken with VLT-FORS2 allow us to provide spectral classification for 200 objec... N Castro,M Garcueda,C Trundle,... - 《Revista Mexicana De Astronomia Y Astrofisica》 ...
Independent Component Analysis for the objective classification of the globular Clusters of the galaxy NGC 5128, Computational Statistics and Data Analysis.57, pp.17-32.Chattopadhyay, A. K., Mondal, S., Chattopadhyay, T., 2013. Independent Component Analysis for the Objective Classification of ...
Given that and its apparent size of about 1.0 by 0.75 arcmin (from the images below), the galaxy is about 55 thousand light-years across. Classification Note: The galaxy has a well-defined core, with a very bright central region, and a considerably fainter outer region. Most elliptical ...
A magnitude 13.0 lenticular galaxy (type (R')SAB(s)0+/a? pec?) in Centaurus (RA 13 37 29.9, Dec -49 50 13) I strongly suspect that the remarkably detailed NED classification (only slightly altered above, to fit the standard format for types in this catalog) will be changed whenever...
Object Type Lenticular Galaxy Classification S0 Constellation Draco Distance (light-years) 50 Million Apparent Mag. +9.9 RA (J2000) 15h 06m 29s DEC (J2000) +55d 45m 47s Apparent Size (arc mins) 4.7 x 1.9 Radius (light-years) 35,000 Number of Stars 100 Billion Notable Feature Disputed...
The classification of variability types hinges on the integration of light curve morphology, periodogram analysis, and astrophysical parameters. This triad elucidates the positioning of stars on the H–R diagram specific to pulsating variables. Our survey leveraged an interactive approach, utilizing a Pyt...
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NGC 1566 has an unusually high proportion of exceptionally hot, bright O-type stars (areas in white and pink in the HST image are dominated by such stars), and its exceptionally bright nucleus has led to its classification as a Seyfert galaxy (type Sy1 or Sy1.5, depending on the ...
It is the emission-line spectrum and polar jets that are the cause of its classification, which would otherwise be S0, as there is otherwise nothing unusual in the best images currently available.Above, a 12 arcmin wide DSS image centered on NGC 5122 (glare from magnitude 1.0 α Vir ...
Classification Note: Older images of the galaxy show a nearly featureless "compact" galaxy, but the HST image shows that this is a tightly wound unbarred spiral; thanks to Harold Corwin for providing an expert opinion about the classification. ...