TW Dra (Eclipsing binary)

RA: 15h 33m 51.06s, DE: +63° 54' 25.70" (233.4627500000, 63.9071388889)

Data:
  • Constellation: Dra
  • Variability type: EA
  • Maximal brightness (Mag): 8.000 (P)
  • Minimum brightness (Mag): 10.500 (P)
  • Brightness in secondary minimum (Mag): 8.000 (P)
  • Created: 6/1/1996
  • Created by: admin
Show list of observations >>
Periodic elements:
  • Period (d): 2.806846000000000
  • Epoch (HJD): 33310.24800
  • Secondary Epoch (HJD): 33311.65100
Chart
TW Dra
Source: The STScI Digitized Sky Survey
Number of observations

77 x

Number of observers

8 x

Last observed before

2541 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2433310.248 + 2.806846 * E
S: M = 2433311.651 + 2.806846 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline