AK UMi (Eclipsing binary)

RA: 19h 40m 42.54s, DE: +86° 21' 09.10" (295.1772499900, 86.3525277778)

Data:
  • Constellation: UMi
  • Variability type: EW
  • Maximal brightness (Mag): 12.870 (R1)
  • Minimum brightness (Mag): 13.200 (R1)
  • Astrophysical interest: Possible period changes
  • Created by: admin
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Periodic elements:
  • Period (d): 0.536608000000000
  • Epoch (JD): 12.87860
  • Secondary Epoch (JD): 13.146904 (est.)
Change log:

10/19/2025, Filip Walter:

  • Astrophysical interest: Nothing → Possible period changes
  • Epoch: Null → 12.8786
  • Period: Null → 0.536608
  • Variability type: Null → EW
  • Photometric band: Null → R1
  • Minimum brightness: Null → 13.2
  • Maximal brightness: Null → 12.87

Chart
AK UMi
Source: The STScI Digitized Sky Survey
Number of observations

1 x

Number of observers

1 x

Last observed before

0 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2400012.8786 + 0.536608 * E
S: M = 2400013.146904 + 0.536608 * E
ID HJDmin UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline