HN UMa (Eclipsing binary)

RA: 11h 15m 56.37s, DE: +37° 38' 35.30" (168.9848750000, 37.6431388886)

Data:
  • Constellation: UMa
  • Variability type: EW:
  • Maximal brightness (Mag): 9.898
  • Minimum brightness (Mag): 10.016
  • Brightness in secondary minimum (Mag): 10.016
  • Astrophysical interest: Light time effect (LTE)
  • Created: 7/27/1997
  • Created by: admin
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Periodic elements:
  • Period (d): 0.382610000000000
  • Epoch (HJD): 48500.31000
  • Secondary Epoch (HJD): 48500.11900
Change log:

3/19/2026, Filip Walter:

  • Photometric band: → Null
  • Astrophysical interest: Nothing → Light time effect (LTE)

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

11 x

Number of observers

7 x

Last observed before

312 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2448500.31 + 0.38261 * E
S: M = 2448500.119 + 0.38261 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline