NSVS 1156719 (Eclipsing binary)

RA: 17h 21m 00.27s, DE: +78° 54' 25.65" (260.2511250000, 78.9071250000)

Ucac4: UCAC4 845-013296, Other: ASASSN-V J172100.43+785424.8, Ztf: ZTF J172100.38+785425.4

Data:

  • Constellation: UMi
  • Variability type: EW
  • Maximal brightness (Mag): 13.900
  • Created: 3/29/2026
  • Created by: Jan Hykel
Periodic elements:

  • Period (d): 0.263948980000000
  • Epoch (HJD): 2461127.53525
  • Secondary Epoch (HJD): 2461127.66722449 (est.)
Change log:

3/29/2026, Jan Hykel:

  • Eclipsing binary: False → True
  • Epoch: Null → 2461127.53525
  • Period: Null → 0.26394898
  • Variability type: Null → EW
  • Alternative designation: Ucac4: UCAC4 845-013296 → Ucac4: UCAC4 845-013296, : ASASSN-V J172100.43+785424.8, Ztf: ZTF J172100.38+785425.4
  • Name: ASASSN-V J174856.50+780721.9 → NSVS 1156719
  • Name: NSVS 1156719 → ASASSN-V J174856.50+780721.9
  • Name: UCAC4 845-013296 → NSVS 1156719

Number of observations

1 x

Number of observers

1 x

Last observed before

1 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2461127.53525 + 0.26394898 * E
S: M = 2461127.66722449 + 0.26394898 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline