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

HD 65891


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

Improved Astrometry and Photometry for the Luyten Catalog. II. Faint Stars and the Revised Catalog
We complete construction of a catalog containing improved astrometry andnew optical/infrared photometry for the vast majority of NLTT starslying in the overlap of regions covered by POSS I and by the secondincremental Two Micron All Sky Survey (2MASS) release, approximately 44%of the sky. The epoch 2000 positions are typically accurate to 130 mas,the proper motions to 5.5 mas yr-1, and the V-J colors to0.25 mag. Relative proper motions of binary components are measured to 3mas yr-1. The false-identification rate is ~1% for11<~V<~18 and substantially less at brighter magnitudes. Theseimprovements permit the construction of a reduced proper-motion diagramthat, for the first time, allows one to classify NLTT stars intomain-sequence (MS) stars, subdwarfs (SDs), and white dwarfs (WDs). We inturn use this diagram to analyze the properties of both our catalog andthe NLTT catalog on which it is based. In sharp contrast to popularbelief, we find that NLTT incompleteness in the plane is almostcompletely concentrated in MS stars, and that SDs and WDs are detectedalmost uniformly over the sky δ>-33deg. Our catalogwill therefore provide a powerful tool to probe these populationsstatistically, as well as to reliably identify individual SDs and WDs.

The general catalogue of trigonometric [stellar] paralaxes
Not Available

Corrections to the CSI, version 1975
Not Available

Submit a new article


Related links

  • - No Links Found -
Submit a new link


Member of following groups:


Observation and Astrometry data

Constellation:Πρύμνη
Right ascension:07h59m07.06s
Declination:-41°35'11.8"
Apparent magnitude:8.454
Distance:70.872 parsecs
Proper motion RA:21.9
Proper motion Dec:263.5
B-T magnitude:9.164
V-T magnitude:8.513

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 65891
TYCHO-2 2000TYC 7654-3802-1
USNO-A2.0USNO-A2 0450-05476314
HIPHIP 39026

→ Request more catalogs and designations from VizieR