(Redirected from ZZ Ceti)
Epoch J2000.0 Equinox J2000.0 (ICRS)
|Right ascension||01h 36m 13.60s|
|Declination||−11° 20′ 32.2″|
|Apparent magnitude (V)||14.1|
|U−B color index||-0.5|
|B−V color index||0.2|
|Variable type||DAV (ZZ Ceti)|
|Proper motion (μ)||RA: 454 mas/yr
Dec.: -120 mas/yr
|Parallax (π)||13 ± 2 mas|
|Distance||approx. 250 ly
(approx. 80 pc)
ZZ Cet, EGGR 10, G 271-106, G 272-52, LTT 873, NLTT 5358, WD 0133-116
Ross 548 is a variable white dwarf star of the DAV type. It was found to be variable in 1970; in 1972, it was given the variable star designation ZZ Ceti, which also refers to the entire class of DAV variable white dwarfs., pp. 891, 895.
- Improved Astrometry and Photometry for the Luyten Catalog. II. Faint Stars and the Revised Catalog, Samir Salim and Andrew Gould, Astrophysical Journal 582, #2 (January 2003), pp. 1011–1031; CDS ID J/ApJ/582/1011.
- A Catalog of Spectroscopically Identified White Dwarfs, George P. McCook and Edward M. Sion, Astrophysical Journal Supplement 121, #1 (March 1999), pp. 1–130. CDS ID III/210.
- Table 1, Summary of U.S. Naval Observatory parallaxes, R. S. Harrington and C. C. Dahn, Astronomical Journal 85 (April 1980), pp. 454–465.
- High-Frequency Stellar Oscillations. VI. R548, a Periodically Variable White Dwarf, Barry M. Lasker and James E. Hesser, Astrophysical Journal 163 (February 1971), pp. L89–L93.
- 58th Name-List of Variable Stars, B. V. Kukarkin, P. N. Kholopov, N. P. Kukarkina, N. B. Perova, Information Bulletin on Variable Stars, #717, September 21, 1972.
- Physics of white dwarf stars, D. Koester and G. Chanmugam, Reports on Progress in Physics 53 (1990), pp. 837–915.
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