Optical photometry of the emission-line M star PC 0025 + 0447

Details Optical photometry of the emission-line M star PC 0025 + 0447 Optical photometry of the emission-line M star PC 0025 + 0447

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pasp..105..821s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 105, no. 690, p. 821-824.

Astronomy and Astrophysics

Astronomy

4

Emission Spectra, M Stars, Stellar Spectrophotometry, Astrometry, Charge Coupled Devices, Position (Location), Stellar Color

Scientific paper

We present r, i, and z CCD photometry of the emission-line M star PC 0025 + 0447 obtained in 1992 December. The optical colors of this object are significantly redder than the colors of late M-type stars. Combining these data with the earliest images we have of the object provides a time baseline of just over six years. The data are consistent with no detectable proper motion; an upper limit on the proper motion is 0.04 arcsec/yr. We also report a position for PC 0025 + 0447 that should be accurate to about 1 arcsec.

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