CSS_J173808.9+253941 (Eclipsing binary)

RA: 17h 38m 08.91s, DE: +25° 39' 41.70" (264.5371249950, 25.6615833333)

Other: CSS_J173808.9+253941, Other: G2080.00919

Data:
  • Constellation: Her
  • Variability type: EW
  • Maximal brightness (Mag): 13.780 (V)
  • Minimum brightness (Mag): 13.980 (V)
  • Brightness in secondary minimum (Mag): 13.980 (V)
  • Astrophysical interest: Possible period changes
  • Created: 5/20/2018
  • Created by: admin
Show list of observations >>
Periodic elements:
  • Period (d): 0.277366000000000
  • Epoch (HJD): 2456789.19100
  • Secondary Epoch (HJD): 2456789.329683 (est.)
Change log:

9/7/2025, Filip Walter:

  • Astrophysical interest: Nothing → Possible period changes
  • Secondary Epoch: 56789.46041 → Null
  • Epoch: 56789.191 → 2456789.191
  • Period: 0.538825 → 0.277366
  • Name: G2080.00919 → CSS_J173808.9+253941
  • Alternative designation: : CSS_J173808.9+253941 → : CSS_J173808.9+253941, : G2080.00919
  • Declination: 25.6613888889 → 25.6615833333
  • Right ascension: 264.541249995 → 264.537124995

Chart
CSS_J173808.9+253941
Source: The STScI Digitized Sky Survey
Number of observations

2 x

Number of observers

1 x

Last observed before

2904 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2456789.191 + 0.277366 * E
S: M = 2456789.329683 + 0.277366 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline