Poчetna     To Survive in the Universe    
Services
    Why to Inhabit     Top Contributors     Астро Фотографије     Колекција     Форум     Blog New!     FAQ(Често постављана питања     Улогуј се  
→ Adopt this star  

HD 203955


Садржај

Слике

Уплоадјуј своје слике

DSS Images   Other Images


Везани чланци

The 2MASS Wide-Field T Dwarf Search. II. Discovery of Three T Dwarfs in the Southern Hemisphere
We present the discovery of three new southern hemisphere T dwarfsidentified in the Two Micron All Sky Survey. These objects, 2MASS0348-6022, 2MASS 0516-0445, and 2MASS 2228-4310, have classificationsT7, T5.5, and T6.5, respectively. Using linear absolutemagnitude/spectral type relations derived from T dwarfs with measuredparallaxes, we estimate spectrophotometric distances for thesediscoveries; the closest, 2MASS 0348-6022, is likely within 10 pc of theSun. Proper motions and estimated tangential velocities are consistentwith membership in the Galactic disk population. We also list southernhemisphere T dwarf candidates that were either not found in subsequentnear-infrared imaging observations and are most likely uncataloged minorplanets, or have near-infrared spectra consistent with background stars.

Four-colour and H BET photometry of some bright southern stars- II.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972MNRAS.160..155S&db_key=AST

Додај нови чланак


Линкови у сродству са темом

  • - Нема линкова -
Додај нови линк


Чланови следећих група \:


Посматрања и Астрометриски подаци

Сазвежђа:Октант
Ректацензија:21h33m20.60s
Deклинација:-80°02'21.0"
Apparent магнитуда:6.47
Даљина:110.497 parsecs
Proper motion RA:23
Proper motion Dec:-22.8
B-T magnitude:6.519
V-T magnitude:6.471

Каталог и designations:
Proper имена
HD 1989HD 203955
TYCHO-2 2000TYC 9482-928-1
USNO-A2.0USNO-A2 0075-06815392
BSC 1991HR 8201
HIPHIP 106424

→ Захтевај још каталога од VizieR