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Strong cyanogen stars
A cyanogen index for late-type giants, insensitive to surface gravity but sensitive to metallicity, is presented in the David Dunlap Observatory (DDO) photometric system.... -
Photometry of strong CN stars
A group of 185 late G and K giants, selected from the US Naval Observatory Catalog of Photoelectric Observations (Cat. II/4) because they had Ultraviolet deficiences, were... -
K-Line photometry of stars in Population I clusters
Photoelectric photometry of the K-line of calcium has been performed for the A stars of five open clusters (Hyades, Pleiades, IC 2391, IC 2602, and NGC 6475) and one association... -
K-line photometry of Southern A stars
The photoelectric measurements of the strength of the Calcium K-line has been extended by 223 stars of predominantly southern or equatorial declinations which are well... -
K-Line Photometry of A Stars
A narrow-band spectrometer, compensated for seeing and transparency variations, has been constructed and used to measure the strength of the calcium K-line (3933.68{AA}) in 146... -
Gaia DR2 x AllWISE catalogue
The second Gaia Data Release (DR2) contains astrometric and photometric data for more than 1.6 billion objects with mean Gaia G magnitude <20.7, including many Young Stellar... -
Narrow-band photometry of early-type stars
A compilation of the photoelectric measurements in the Barbier-Morguleff system is presented for 773 stars of spectral types O8 to F6. 706 stars have been measured at least... -
Photometry of orange-red CaI triplet in Late-Type Stars
Calcium absorption lines were measured using narrow-band photometry on 296 high and low velocity G8-K5 stars of all luminosity classes. Because the blue-violet region of the... -
Narrow-Band Photometry of Late-Type Stars
The catalog is a compilation of photoelectric photometry obtained as part of a program investigating the distribution of stars and stellar matter perpendicular to the galactic... -
Observations in the Geneva Photometric System 4.
This catalog is a successor to an earlier edition (Rufener 1981). It is a compilation of photoelectric measurements made in the Geneva Observatory seven-color photometric... -
A search for variable stars in M4 with K2 LCs
We extract light curves for 4554 objects with 9
