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Today is Fri May 3 2:19:42 CEST 2024JD 2460433.5136806
 

GEOS RR-Lyr database

Type star name:  
 

VY Nor

 

GCVS data
GCVS number 570043
Variable star identification163133.12-535823.7

Coordinates:

RA/DEC (J2000.0) 247.8880005 -53.97325 degrees
Proper motion (RA/DEC) -0.031 -0.039 arc sec/year
Epoch of coordinates 2000
Reference for coordinates Hip

Variable star characteristics:

Type RRAB
magnitudes at max 12.1 , at min 12.8 (p)
Elements: 2425535.249 + 0.375305 E
M-m 43 %
spectrum
reference for type [00427] Kruytbosch, W.E., 1930, No. 194, BAN, 5, 219 {1930BAN.....5..219K
reference for finding chart [00427] Kruytbosch, W.E., 1930, No. 194, BAN, 5, 219 {1930BAN.....5..219K

Cross identification

Hip 080931

Elements

By default the database elements are used in O-C calculation. If several elements are available, the user may choose one of them. A form allows the user to enter his/her own elements. If they are given they become the current elements until the button "Reset to database elements" is pressed.

Elements avalable in database:

2425535.249 + 0.375305 E (GCVS (Kholopov et al.; 1988-2006))
2425535.249 + 0.375305 E (GCVS (Samus et al.; 2011))

  Origin Period Quad. term  
Type Elements:  
  Or
 

Current elements: 2425535.249 + 0.375305 E

1 maximums


Symbol colors: green: photographic; yellow: visual; red: photoelectric; bleu: ccd; no color: unknown

Plot O-C as function of HJD Cycle number

Toggle period shift ON OFF

  HJD   Unc.   O-C   E   period   Ref.   Observer   meth.   comments  
    (day)     shift  
  457234.5563      0.0026      -0.109      -5244536      0      J.F. Le Borgne, 2015b, pr. com.      Tarot - Chile      ccd          

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Lightcurve from AAVSO data
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Today is Fri May 3 2:19:42 CEST 2024