MQ UMa (Eclipsing binary)

RA: 11h 21m 41.10s, DE: +43° 36' 53.00" (170.4212500000, 43.6147222222)

Tic: TIC 406760836, Gcvs: MQ UMa, Gsc: GSC 03015-00374, Tyc: TYC 3015-374-1, TwoMass: 2MASS J11214106+4336526, Gaia: Gaia DR3 783867373022334592

Data:

  • Constellation: UMa
  • Variability type: EW
  • Maximal brightness (Mag): 11.570 (V)
  • Minimum brightness (Mag): 11.830 (V)
  • Brightness in secondary minimum (Mag): 11.570 (V)
  • Astrophysical interest: Light time effect (LTE), Period increasing
  • Created: 2/15/2006
  • Created by: admin
Periodic elements:

  • Period (d): 0.476069000000000
  • Epoch (HJD): 51312.85600
  • Secondary Epoch (HJD): 51313.09400
Change log:

4/29/2026, Filip Walter:

  • Astrophysical interest: Period increasing → Light time effect (LTE), Period increasing
  • Astrophysical interest: Light time effect (LTE) → Period increasing
  • Name: MQ → MQ UMa
  • Astrophysical interest: Nothing → Light time effect (LTE)
  • Alternative designation: → Tic: TIC 406760836, Gcvs: MQ UMa, Gsc: GSC 03015-00374, Tyc: TYC 3015-374-1, TwoMass: 2MASS J11214106+4336526, Gaia: Gaia DR3 783867373022334592

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

21 x

Number of observers

9 x

Last observed before

2 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2451312.856 + 0.476069 * E
S: M = 2451313.094 + 0.476069 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline