羅斯548

天球赤道座標:01h 36m 13.60s,−11° 20′ 32.2″
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羅斯548
觀測資料
曆元 J2000.0 (ICRS)
星座 鯨魚座
星官
赤經 01h 36m 13.60s[1]
赤緯 -11° 20′ 32.2″[1]
視星等(V) 14.1[1]
特性
光譜分類DAV4[2]
U−B 色指數-0.5[2]
B−V 色指數0.2[2]
變星類型DAV (ZZ Ceti)[2]
天體測定
自行 (μ) 赤經:454[1] mas/yr
赤緯:-120[1] mas/yr
視差 (π)13 ± 2[3] mas
距離大約250 ly
(大約80 pc)
其他命名
ZZ Ceti, ZZ Cet, EGGR 10, G 271-106, G 272-52, LTT 873, NLTT 5358, WD 0133-116

羅斯 548是一種會變的白矮星,屬於DAV類型,它在1970年被發現是一顆變星[4],在1972年,它的變星標識為鯨魚座ZZ (Ceti ZZ)[5],其中還提到鯨魚座ZZ是完全型態的DAV白矮星變星 [6], pp. 891, 895.

相關條目

參考資料

  1. 1.0 1.1 1.2 1.3 1.4 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.
  2. 2.0 2.1 2.2 2.3 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.
  3. Table 1, Summary of U.S. Naval Observatory parallaxes, R. S. Harrington and C. C. Dahn, Astronomical Journal 85 (April 1980), pp. 454–465.
  4. 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.
  5. 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.
  6. Physics of white dwarf stars, D. Koester and G. Chanmugam, Reports on Progress in Physics 53 (1990), pp. 837–915.