NSVS 1230018 (Eclipsing binary)

RA: 20h 21m 50.89s, DE: +74° 53' 17.23" (305.4620500000, 74.8881200000)

Other: NSVS 1230018, Other: ASASSN-V J202151.08+745318.0

Data:

  • Constellation: Cep
  • Variability type: EW
  • Maximal brightness (Mag): 12.795 (g)
  • Minimum brightness (Mag): 13.144 (g)
  • Astrophysical interest: Wrong period
  • Created by: admin
Periodic elements:

  • Period (d): 0.446112800000000
  • Epoch (JD): 2458324.92750
  • Secondary Epoch (JD): 2458325.1505564 (est.)
Change log:

11/13/2025, Filip Walter:

  • Name: NSVS1230018 → NSVS 1230018
  • Alternative designation: : NSVS 1230018 → : NSVS 1230018, : ASASSN-V J202151.08+745318.0
  • Astrophysical interest: Nothing → Wrong period
  • Epoch: Null → 2458324.9275
  • Period: Null → 0.4461128
  • Variability type: Null → EW
  • Photometric band: Null → g
  • Minimum brightness: Null → 13.144
  • Maximal brightness: Null → 12.795
  • Declination: 74.8883916663 → 74.88812
  • Right ascension: 305.4646583333 → 305.46205

Number of observations

3 x

Number of observers

2 x

Last observed before

872 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2458324.9275 + 0.4461128 * E
S: M = 2458325.1505564 + 0.4461128 * E
ID HJDmin UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline