V0490 Cyg (Eclipsing binary)

RA: 20h 09m 57.01s, DE: +31° 22' 11.78" (302.4875400000, 31.3699400000)

AsasSnV: ASASSN-V J200956.96+312211.2, Gaia: Gaia DR3 2054015852453534592, Gcvs: V0490 Cyg, Gcvs: V490 Cyg, Nsvs: NSVS 8467991, Tic: TIC 91717090, TwoMass: 2MASS J20095700+3122117, Other: AN 76.1939, Other: IOMC 2671000068

Data:
  • Constellation: Cyg
  • Variability type: EB
  • Maximal brightness (Mag): 13.100 (P)
  • Minimum brightness (Mag): 13.700 (P)
  • Brightness in secondary minimum (Mag): 13.500 (P)
  • Astrophysical interest: Apsidal motion, Excentric orbit of the binary
  • Created: 6/1/1996
  • Created by: admin
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Periodic elements:
  • Period (d): 1.140236000000000
  • Epoch (HJD): 28097.37100
  • Secondary Epoch (HJD): 28097.94100
Change log:

10/29/2026, Filip Walter:

  • Astrophysical interest: Nothing → Apsidal motion, Excentric orbit of the binary

10/21/2026, Filip Walter:

  • Variability type: EB,disp → EB
  • Declination: 31.3699444438 → 31.36994
  • Right ascension: 302.4875416667 → 302.48754
  • Name: V0490 → V0490 Cyg
  • CI: TwoMass: Null → 2MASS J20095700+3122117
  • CI: Tic: Null → TIC 91717090
  • CI: Other: Null → AN 76.1939, IOMC 2671000068
  • CI: Nsvs: Null → NSVS 8467991
  • CI: Gcvs: Null → V0490 Cyg, V490 Cyg
  • CI: Gaia: Null → Gaia DR3 2054015852453534592
  • CI: AsasSnV: Null → ASASSN-V J200956.96+312211.2

Chart
V0490 Cyg
Source: The STScI Digitized Sky Survey, FoV: 15 x 15 arcmin
Number of observations

24 x

Number of observers

5 x

Last observed before

1222 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2428097.371 + 1.140236 * E
S: M = 2428097.941 + 1.140236 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline