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HD 44151 (Niki ' Diamond)


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Equatorial coordinates of double and multiple star components measured on GPO astrographic plates
Equatorial coordinates are given for some of the multiple starcomponents having incomplete or inconsistent information in the IndexCatalog of Visual Double Stars. Two photographic plates were taken foreach system with incomplete or inconsistent information using the GPOastrograph. The plate measurement and reduction techniques used aredescribed.

Photometric Study of Trapezium-Type Systems
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1979RMxAA...4..287E&db_key=AST

Spectral types for early-type stars observed by SKYLAB
MK spectral types are presented for 246 early-type stars observed withthe S-019 ultraviolet stellar astronomy experiment on Skylab. K-linetypes are also given where applicable, and various peculiar stars areidentified. The peculiar stars include five silicon stars, a shell star,a helium-rich star, a silicon-strontium star, a chromium-europium star,and two marginal metallic-line stars.

UBVRI photometry of stars in Trapezium type systems.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1977RMxAA...3..133W&db_key=AST

The kinematics of trapezium systems.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974RMxAA...1..101A&db_key=AST

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Membro dei seguenti gruppi:

Osservazione e dati astrometrici

Costellazione:Gemelli
Ascensione retta:06h21m10.32s
Declinazione:+21°07'44.9"
Magnitudine apparente:8.921
Moto proprio RA:-4.6
Moto proprio Dec:0.3
B-T magnitude:8.935
V-T magnitude:8.923

Cataloghi e designazioni:
Nomi esattiNiki ' Diamond
  (Edit)
HD 1989HD 44151
TYCHO-2 2000TYC 1327-1120-1
USNO-A2.0USNO-A2 1050-03383692
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