Home     Getting Started     To Survive in the Universe    
Inhabited Sky
    News@Sky     Astro Photo     The Collection     Forum     Blog New!     FAQ     Press     Login  

HD 199100


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

Speckle Observations of Binary Stars with the WIYN Telescope. III. A Partial Survey of A, F, and G Dwarfs
Two hundred thirty nearby main-sequence stars with spectral types in therange of A to G have been observed by way of speckle interferometryusing the WIYN 3.5 m telescope at Kitt Peak, Arizona. The stars had noprevious mention of duplicity in the literature. Of those observed, 14showed clear evidence of a companion, and 63 were classified assuspected nonsingle based on a power spectrum analysis. The remainingstars discussed show no evidence of duplicity to the limit of thedetection system in high-quality observations. The WIYN Observatory is ajoint facility of the University of Wisconsin-Madison, IndianaUniversity, Yale University, and the National Optical AstronomyObservatory.

Estimation of spectral classifications for bright northern stars with interesting Stromgren indices
The purpose of this investigation is to provide spectroscopic observerswith finding lists of potentially interesting objects. From anunpublished UVBY catalogue of 7026 northern stars (mostly brighter than8.3m) 1094 objects with interesting combinations of UVBY indices havebeen selected. Most stars with post-HD classifications have beenexcluded, as well as late F dwarfs belonging to the intermediatepopulation II. For the 792 remaining stars estimated spectralclassifications are given. The techniques and experience from a previouspaper dealing with southern stars have been utilized here. Among thepredicted spectral classifications are 40 OB stars; 262 Ap, Am, or Fmstars; 16 supergiants of types A to G; 110 bright giants of types A to K(class II); 156 double stars or objects with composite spectra; 26 lateF dwarfs; 91 weak-lined dwarf and giant stars of types F to K, includingearly F-type population II field blue stragglers; and a few possiblefield horizontal branch stars, lambda Bootis-type stars, and late-typehalo giants.

KURZE MITTEILUNG. Zur Expansion der Assoziation Cep III
Not Available

Spectral Classification of Stars Noted on Case Objective Prism Plates. II
Not Available

Stars with large Proper Motions in the Hyderabab Astrographic zones + 36° to + 39° (Final list)
Not Available

Submit a new article


Related links

  • - No Links Found -
Submit a new link


Member of following groups:


Observation and Astrometry data

Constellation:Schwan
Right ascension:20h53m41.73s
Declination:+36°07'48.0"
Apparent magnitude:7.784
Distance:58.173 parsecs
Proper motion RA:-60.7
Proper motion Dec:-96.8
B-T magnitude:8.722
V-T magnitude:7.862

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 199100
TYCHO-2 2000TYC 2700-1105-1
USNO-A2.0USNO-A2 1200-16369954
HIPHIP 103131

→ Request more catalogs and designations from VizieR