VBLUW photometry of two hypergiants HD 80077 (B2Ia+) and HD 74180 (F2Ia+) and of the open cluster PISMIS 11

Details VBLUW photometry of two hypergiants HD 80077 (B2Ia+) and HD 74180 (F2Ia+) and of the open cluster PISMIS 11 VBLUW photometry of two hypergiants HD 80077 (B2Ia+) and HD 74180 (F2Ia+) and of the open cluster PISMIS 11

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...154..308s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 154, no. 1-2, Jan. 1986, p. 308-312.

Astronomy and Astrophysics

Astrophysics

10

Open Clusters, Stellar Spectrophotometry, Supergiant Stars, Variable Stars, Color-Magnitude Diagram, Hertzsprung-Russell Diagram, Interstellar Extinction, Ubv Spectra

Scientific paper

The authors present and discuss VBLUW-photometry of HD 80077 and HD 74180, two galactic hypergiants, and in addition also of the young open cluster Pismis 11, of which HD 80077 presumably is a member. Both hypergiants were observed for several months during two consecutive years, and appear to show small, irregular variations in brightness and colours. The results of the observations concerning distances and reddening do not contradict other studies of these stars.

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