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HD 69841


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The VELA star cloud. III - The B8 to A0 stars and interstellar reddening
The present discussion of intermediate band and H-beta observations of360 HD stars B8-A0 in Vela, and all of the CPD stars in a small adjacentregion, notes that the interstellar absorption in both cases can beunderstood as a combination of three absorbing clouds of 1 kpc-A(V) =1.5, 0.5, and 0.17. The major difference in the two environments is thepresence of numerous T Tauri stars in Taurus. Several clusters in theVela region are discussed.

H-beta photometry of southern early-type stars
H-beta photoelectric photometry is presented for 209 southern hemisphereearly-type stars from the HD catalog with galactic latitudes /b/ greaterthan 6 deg. Four-color photometry exists for all these stars and MKtypes for most of them. Absolute magnitudes have been estimated for allbut the emission-line stars and distances from the sun and the galacticplane determined.

Four colour photometry of southern early-type stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1978MNRAS.182..629K&db_key=AST

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Osservazione e dati astrometrici

Costellazione:Vele
Ascensione retta:08h16m37.47s
Declinazione:-49°53'43.2"
Magnitudine apparente:8.193
Distanza:854.701 parsec
Moto proprio RA:-5.6
Moto proprio Dec:3.5
B-T magnitude:8.265
V-T magnitude:8.199

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 69841
TYCHO-2 2000TYC 8157-245-1
USNO-A2.0USNO-A2 0375-05230485
HIPHIP 40537

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