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

HD 187801


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

The position corrections of 1400 stars observed with PA II in San Juan.
Not Available

Fifth fundamental catalogue. Part 2: The FK5 extension - new fundamental stars
The mean positions and proper motions for 3117 new fundamental starsessentially in the magnitude range about 4.5 to 9.5 are given in thisFK5 extension. Mean apparent visual magnitude is 7.2 and is on average2.5 magnitudes fainter then the basic FK5 which has a mean magnitude of4.7. (The basic FK5 gives the mean positions and proper motions for theclassical 1535 fundamental stars). The following are discussed: theobservational material, reduction of observations, star selection, andthe system for the FK5 extension. An explanation and description of thecatalog are given. The catalog of 3117 fundamental stars for the equinoxand epoch J2000.0 and B1950.0 is presented. The parallaxes and radialvelocities for 22 extension stars with large forecasting effects aregiven. Catalogs used in the compilation of the FK5 fundamental catalogare listed.

Photoelectric observations of lunar occultations. XI
Occultation observations of 466 events are presented. These includediameter measures of Aldebaran under very bad conditions and a gooddiameter measure of 82 Vir. The list includes 91 reappearances andobservations of 34 double or multiple stars, both new and previouslyknown. The inconsistencies of the observations of Kui 88 are discussed.Further observations are most desirable.

Submit a new article


Related links

  • - No Links Found -
Submit a new link


Member of following groups:


Observation and Astrometry data

Constellation:Sagittaire
Right ascension:19h52m26.59s
Declination:-16°53'10.7"
Apparent magnitude:7.736
Distance:2380.952 parsecs
Proper motion RA:13.9
Proper motion Dec:-20.3
B-T magnitude:9.882
V-T magnitude:7.914

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 187801
TYCHO-2 2000TYC 6317-2017-1
USNO-A2.0USNO-A2 0675-34454767
HIPHIP 97802

→ Request more catalogs and designations from VizieR