ASAS J202540+2007.2 (Eclipsing binary)

RA: 20h 25m 40.06s, DE: +20° 07' 06.88" (306.4169166667, 20.1185777778)

Ucac4: UCAC4 551-121637, AsasSnV: ASASSN-V J202539.96+200707.0, Other: ASAS 202540+2007.2, Other: ASAS J202540+2007.2, Other: LS II +19 23

Data:
  • Constellation: Del
  • Variability type: ESD
  • Maximal brightness (Mag): 11.517 (V)
  • Minimum brightness (Mag): 11.826 (V)
  • Created: 7/31/2026
  • Created by: Martin Mašek
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Periodic elements:
  • Period (d): 0.854810000000000
  • Epoch (HJD): 2452725.69000
  • Secondary Epoch (HJD): 2452726.117405 (est.)
Change log:

8/1/2026, Jan Hykel:

  • Epoch: Null → 2452725.69
  • Period: Null → 0.85481
  • Variability type: Null → ESD
  • Photometric band: Null → V
  • Minimum brightness: Null → 11.826
  • Maximal brightness: 11.75 → 11.517
  • Name: UCAC4 551-121637 → ASAS J202540+2007.2
  • Eclipsing binary: False → True
  • Alternative designation: Ucac4: UCAC4 551-121637 → Ucac4: UCAC4 551-121637, AsasSnV: ASASSN-V J202539.96+200707.0, : ASAS 202540+2007.2, : ASAS J202540+2007.2, : LS II +19 23

Chart
ASAS J202540+2007.2
Source: The STScI Digitized Sky Survey, FoV: 15 x 15 arcmin
Number of observations

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Number of observers

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Last observed before

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O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2452725.69 + 0.85481 * E
S: M = 2452726.117405 + 0.85481 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
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Timeline