ASAS J135738+1926.2 (Eclipsing binary)

RA: 13h 57m 38.13s, DE: +19° 26' 10.40" (209.4088750000, 19.4362222222)

Ucac4: UCAC4 548-053359, Other: ASAS J135738+1926.2, Ztf: ZTF J135738.13+192610.2, Crts: CRTS J135738.1+192610, Gaia: Gaia DR3 1246699199233045760

Data:

  • Constellation: Boo
  • Variability type: EW
  • Maximal brightness (Mag): 13.360 (V)
  • Minimum brightness (Mag): 14.020 (V)
  • Created: 5/1/2025
  • Created by: Martin Mašek
Periodic elements:

  • Period (d): 0.270764000000000
  • Epoch (HJD): 2460796.39613
  • Secondary Epoch (HJD): 2460796.53151
Change log:

3/17/2026, Filip Walter:

  • Astrophysical interest: Wrong period, Wrong main epoch → Nothing
  • Secondary Epoch: 2452653.21338 → 2460796.531512
  • Epoch: 2452653.078 → 2460796.39613

3/14/2026, Filip Walter:

  • Name: CRTS J135738.1+19261 → ASAS J135738+1926.2
  • Alternative designation: Ucac4: UCAC4 548-053359, : ASAS J135738+1926.2, : CRTS J135738.1+192610 → Ucac4: UCAC4 548-053359, : ASAS J135738+1926.2, Ztf: ZTF J135738.13+192610.2, Crts: CRTS J135738.1+192610, Gaia: Gaia DR3 1246699199233045760
  • Name: ASAS J135738+1926.2 → CRTS J135738.1+19261
  • Alternative designation: Ucac4: UCAC4 548-053359, Vsx: ASAS J135738+1926.2 → Ucac4: UCAC4 548-053359, : ASAS J135738+1926.2, : CRTS J135738.1+192610

10/29/2025, Filip Walter:

  • Name: UCAC4 548-053359 → ASAS J135738+1926.2

5/1/2025, Filip Walter:

  • Astrophysical interest: Nothing → Wrong period, Wrong main epoch
  • Secondary Epoch: Null → 2452653.213382
  • Variability type: Null → EW
  • Minimum brightness: Null → 14.02

Number of observations

3 x

Number of observers

2 x

Last observed before

1 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2460796.39613 + 0.270764 * E
S: M = 2460796.53151 + 0.270764 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline