V1511 Her (Eclipsing binary)

RA: 17h 55m 27.45s, DE: +44° 06' 55.40" (268.8643749900, 44.1153888889)

Other: ROTSE1 J175527.44+440654.3, Tic: TIC 193819456, Gcvs: V1511 Her, Tyc: TYC 3101-1180-1, TwoMass: 2MASS J17552746+4406549, Nsvs: NSVS 5361719, Gaia: Gaia DR3 1346513483278668800

Data:
  • Constellation: Her
  • Variability type: EW
  • Maximal brightness (Mag): 11.500 (V)
  • Minimum brightness (Mag): 11.910 (V)
  • Brightness in secondary minimum (Mag): 11.840 (V)
  • Astrophysical interest: Period increasing
  • Created: 2/22/2017
  • Created by: admin
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Periodic elements:
  • Period (d): 0.350079000000000
  • Epoch (HJD): 56485.44070
  • Secondary Epoch (HJD): 56485.61570
Change log:

5/1/2026, Filip Walter:

  • Name: V1511 → V1511 Her
  • Astrophysical interest: Possible period changes → Period increasing
  • Alternative designation: : ROTSE1 J175527.44+440654.3 → : ROTSE1 J175527.44+440654.3, Tic: TIC 193819456, Gcvs: V1511 Her, Tyc: TYC 3101-1180-1, TwoMass: 2MASS J17552746+4406549, Nsvs: NSVS 5361719, Gaia: Gaia DR3 1346513483278668800

11/12/2025, Filip Walter:

  • Astrophysical interest: Period increasing → Possible period changes
  • Astrophysical interest: Nothing → Period increasing

Chart
V1511 Her
Source: The STScI Digitized Sky Survey, FoV: 15 x 15 arcmin
Number of observations

11 x

Number of observers

8 x

Last observed before

6 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2456485.4407 + 0.350079 * E
S: M = 2456485.6157 + 0.350079 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline