GR Boo (Eclipsing binary)

RA: 14h 59m 54.50s, DE: +25° 54' 34.00" (224.9770833283, 25.9094444444)

Tic: TIC 229879237, Tyc: TYC 2020-873-1, Gsc: GSC 02020-00873, Gcvs: GR Boo, TwoMass: 2MASS J14595454+2554336, Nsvs: NSVS 7788990, Crts: CRTS J145954.5+255433, Gaia: Gaia DR3 1267903865090816896

Data:

  • Constellation: Boo
  • Variability type: EW
  • Maximal brightness (Mag): 11.450 (V)
  • Minimum brightness (Mag): 11.900 (V)
  • Brightness in secondary minimum (Mag): 11.450 (V)
  • Astrophysical interest: Light time effect (LTE)
  • Created: 6/6/2003
  • Created by: admin
Periodic elements:

  • Period (d): 0.376669500000000
  • Epoch (HJD): 51996.57900
  • Secondary Epoch (HJD): 51996.76700
Change log:

5/10/2026, Filip Walter:

  • Name: GR → GR Boo
  • Astrophysical interest: Nothing → Light time effect (LTE)
  • Alternative designation: → Tic: TIC 229879237, Tyc: TYC 2020-873-1, Gsc: GSC 02020-00873, Gcvs: GR Boo, TwoMass: 2MASS J14595454+2554336, Nsvs: NSVS 7788990, Crts: CRTS J145954.5+255433, Gaia: Gaia DR3 1267903865090816896

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

20 x

Number of observers

4 x

Last observed before

1 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2451996.579 + 0.3766695 * E
S: M = 2451996.767 + 0.3766695 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline