OT UMa (Eclipsing binary)

RA: 08h 19m 23.16s, DE: +66° 12' 36.20" (124.8464999900, 66.2100555556)

Data:
  • Constellation: UMa
  • Variability type: EW
  • Maximal brightness (Mag): 12.200 (R)
  • Minimum brightness (Mag): 12.500 (R)
  • Brightness in secondary minimum (Mag): 12.480 (R)
  • Astrophysical interest: Possible period changes
  • Created: 9/3/2007
  • Created by: admin
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Periodic elements:
  • Period (d): 0.316072500000000
  • Epoch (HJD): 51518.73900
  • Secondary Epoch (HJD): 51518.89703
Change log:

2/21/2026, Filip Walter:

  • Astrophysical interest: Nothing → Possible period changes

Chart
OT UMa
Source: The STScI Digitized Sky Survey
Number of observations

67 x

Number of observers

10 x

Last observed before

352 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2451518.739 + 0.3160725 * E
S: M = 2451518.89703 + 0.3160725 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline