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Today is Fri May 3 8:18:41 CEST 2024JD 2460433.7629745
 

GEOS RR-Lyr database

Type star name:  
 

VX Aps

 

GCVS data
GCVS number 30042
Variable star identification155956.25-751319.9

Coordinates:

RA/DEC (J2000.0) 239.9843745 -75.2221944 degrees
Proper motion (RA/DEC) -0.005 -0.012 arc sec/year
Epoch of coordinates 2000
Reference for coordinates UCAC2

Variable star characteristics:

Type RRAB
magnitudes at max 11.5 , at min 12.6 (p)
Elements: 2434239.361 + 0.484578 E
M-m 35 %
spectrum F9:
reference for type [00080] Hoffmeister, C., 1956, VSS, 3, No. 1, 1 {1956VeSon...3....1H
reference for finding chart [02338] MVS N274, 1957

Cross identification

AN 1942.0036
GSC 9429.00076
S 03296

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:

2434239.361 + 0.484578 E (GCVS (Kholopov et al.; 1988-2006))
2434239.361 + 0.484578 E (GCVS (Samus et al.; 2011))

  Origin Period Quad. term  
Type Elements:  
  Or
 

Current elements: 2434239.361 + 0.484578 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  
  457233.6075      0.0014      -0.200      -4079850      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 8:18:41 CEST 2024