ES Oct (Eclipsing binary)

RA: 21h 17m 51.80s, DE: -79° 24' 22.00" (319.4658333283, -79.4061111111)

Asas: ASAS J211752-7924.4, AsasSnV: ASASSN-V J211751.88-792421.6, Gaia: Gaia DR3 6349770467491599104, Gcvs: ES Oct, Gsc: GSC 09469-00599, Tic: TIC 403997213, TwoMass: 2MASS J21175183-7924215, Other: NSV 13608

Data:
  • Constellation: Oct
  • Variability type: EB
  • Maximal brightness (Mag): 12.660 (V)
  • Minimum brightness (Mag): 13.700 (V)
  • Brightness in secondary minimum (Mag): 13.000 (V)
  • Created: 5/30/2006
  • Created by: admin
Show list of observations >>
Periodic elements:
  • Period (d): 0.510696000000000
  • Epoch (HJD): 52085.71000
  • Secondary Epoch (HJD): 52085.965348 (est.)
Change log:

9/30/2026, Filip Walter:

  • CI: TwoMass: Null → 2MASS J21175183-7924215
  • CI: Tic: Null → TIC 403997213
  • CI: Other: Null → NSV 13608
  • CI: Gsc: Null → GSC 09469-00599
  • CI: Gcvs: Null → ES Oct
  • CI: Gaia: Null → Gaia DR3 6349770467491599104
  • CI: AsasSnV: Null → ASASSN-V J211751.88-792421.6
  • CI: Asas: Null → ASAS J211752-7924.4

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

2 x

Number of observers

1 x

Last observed before

47 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2452085.71 + 0.510696 * E
S: M = 2452085.965348 + 0.510696 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline