W UMi (Eclipsing binary)

RA: 16h 08m 27.27s, DE: +86° 11' 59.60" (242.1136249950, 86.1998888886)

Data:

  • Constellation: UMi
  • Variability type: EA
  • Maximal brightness (Mag): 8.510 (V)
  • Minimum brightness (Mag): 9.590 (V)
  • Brightness in secondary minimum (Mag): 8.660 (V)
  • Astrophysical interest: Period increasing
  • Created: 6/1/1996
  • Created by: admin
Periodic elements:

  • Period (d): 1.701148500000000
  • Epoch (HJD): 19487.85000
  • Secondary Epoch (HJD): 19488.70000
Change log:

3/7/2026, Filip Walter:

  • Astrophysical interest: Nothing → Period increasing

Number of observations

5 x

Number of observers

5 x

Last observed before

3 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2419487.85 + 1.7011485 * E
S: M = 2419488.7 + 1.7011485 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline