DR Vul (Eclipsing binary)

RA: 20h 13m 46.85s, DE: +26° 45' 01.60" (303.4452083233, 26.7504444444)

Tic: TIC 452335793, Gsc: GSC 02162-00017, Hd: HD 339770, Tyc: TYC 2162-17-1, Gcvs: DR Vul, TwoMass: 2MASS J20134684+2645016, Gaia: Gaia DR3 1835739120499213440

Data:
  • Constellation: Vul
  • Variability type: EA
  • Maximal brightness (Mag): 8.650 (V)
  • Minimum brightness (Mag): 9.270 (V)
  • Brightness in secondary minimum (Mag): 9.190 (V)
  • Astrophysical interest: Excentric orbit of the binary, Apsidal motion
  • Created: 6/1/1996
  • Created by: admin
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Periodic elements:
  • Period (d): 2.250884000000000
  • Epoch (HJD): 40300.66800
  • Secondary Epoch (HJD): 40301.79300
Change log:

1/21/2026, Filip Walter:

  • Name: DR → DR Vul
  • Astrophysical interest: Apsidal motion → Excentric orbit of the binary, Apsidal motion
  • Alternative designation: → Tic: TIC 452335793, Gsc: GSC 02162-00017, Hd: HD 339770, Tyc: TYC 2162-17-1, Gcvs: DR Vul, TwoMass: 2MASS J20134684+2645016, Gaia: Gaia DR3 1835739120499213440

11/19/2025, Filip Walter:

  • Astrophysical interest: Nothing → Apsidal motion

Chart
DR Vul
Source: The STScI Digitized Sky Survey
Number of observations

49 x

Number of observers

7 x

Last observed before

936 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2440300.668 + 2.250884 * E
S: M = 2440301.793 + 2.250884 * E
ID HJDmin UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline