RW Lac (Eclipsing binary)

RA: 22h 44m 57.10s, DE: +49° 39' 27.50" (341.2379166617, 49.6576388889)

Tic: TIC 66355834, Gsc: GSC 03629-00740, Tyc: TYC 3629-740-1, Gcvs: RW Lac, TwoMass: 2MASS J22445710+4939275, Gaia: Gaia DR3 1988664351633304320

Data:
  • Constellation: Lac
  • Variability type: EA
  • Maximal brightness (Mag): 10.400 (P)
  • Minimum brightness (Mag): 11.000 (P)
  • Brightness in secondary minimum (Mag): 10.800 (P)
  • D (h): 9.960
  • Astrophysical interest: Light time effect (LTE), Excentric orbit of the binary
  • Created: 6/1/1996
  • Created by: admin
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Periodic elements:
  • Period (d): 10.369207000000000
  • Epoch (HJD): 18657.44000
  • Secondary Epoch (HJD): 18662.62500
Change log:

1/22/2026, Filip Walter:

  • D: Null → 9.96

1/21/2026, Filip Walter:

  • Name: RW → RW Lac
  • Astrophysical interest: Nothing → Light time effect (LTE), Excentric orbit of the binary
  • Alternative designation: → Tic: TIC 66355834, Gsc: GSC 03629-00740, Tyc: TYC 3629-740-1, Gcvs: RW Lac, TwoMass: 2MASS J22445710+4939275, Gaia: Gaia DR3 1988664351633304320

Chart
RW Lac
Source: The STScI Digitized Sky Survey
Number of observations

2 x

Number of observers

2 x

Last observed before

4112 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2418657.44 + 10.369207 * E
S: M = 2418662.625 + 10.369207 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline