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BETA LYR

Coordinates | Light elements | Current Minima | O-C diagram
Comments | Catalogue numbers | References | Get DSS field

  • General characteristics
    • RA
    (2000)
    DEC
    (2000)
    V
    Depth
    Sp
    B-V
    Type
    Pri
    Sec
    Pri
    Sec
    18 50 04.7947
    +33 21 45.601
    3.52
    0.9
    0.5
    B8IIpe
    A5
    0.00
    EB

  • Statistics of collected times of minima
    • Total
    number
    Type
    Method
    Years
    Pri
    Sec
    Vi
    P
    Pg
    Pe
    Ccd
    Other
    2398
    1475
    923
    2181
    0
    9
    208
    0
    0
    1785-1998

  • Light elements:
        The following elements were used to prepare the (O-C) diagram. Please check for any updated elements and current minima and phase.
     Min I = JD Hel 2408248.013 + 12.91563 E

  • Comments: Parabiolic elements: HJD = 2408247.9827 + E x 12.913817 + E^2 x 3.859 x 10 ^ (-6).

  • Catalogue numbers: FL2575 BD+33 3223 HD174638 HR7106 SA 67453 ADS11745A BOSS4776.

  • References:
        The references are links which will try to find the article in ADS. Please note that sometimes the article may not be listed in ADS, or other articles by the same authors may be found. This can happen if the paper is old or in an obscure journal.
    Baldwin, M. \& Samolyk, G. 1999, AAVSO Obs. minima timings No 5
    Harmanec, P. \& Scholz, G. 1993, A\&A, 279, 131
    Klimek, Z. \& Kreiner, J. M. 1973, AcA, 23, 331
    Kreiner, J. M. \& Ziolkowski, J. 1978, AcA, 28, 497
    Van Hamme, W., Wilson, R. E. \& Guinan, E. F. 1995, AJ, 110, 1350

  • Get the 15' field centered on these coordinates from the Digitized Sky Survey at the STScI Archive.
    •  

  • Newer ephemeris data is available online at http://www.as.up.krakow.pl/ephem. Please use the more recent version in your research.

    • [ Email webmaster ] Copyright © 2000 Jerzy M. Kreiner, Chun-Hwey Kim, Il-Seong Nha