SY Hor (Eclipsing binary)

RA: 04h 14m 18.36s, DE: -46° 26' 57.12" (63.5765200000, -46.4492000000)

Asas: ASAS J041419-4626.9, AsasSnV: ASASSN-V J041418.48-462656.6, Gaia: Gaia DR3 4837289900184985728, Gcvs: SY Hor, Gsc: GSC 08068-01275, Tic: TIC 152507230, TwoMass: 2MASS J04141836-4626571, Tyc: TYC 8068-1275-1, Ucac4: UCAC4 218-004328, UsnoB: USNO-B1.0 0435-00033270, Other: 1SWASP J041418.36-462657.1, Other: CD-46 1350, Other: SON 4832

Data:
  • Constellation: Hor
  • Variability type: EW/KW
  • Maximal brightness (Mag): 11.480 (V)
  • Minimum brightness (Mag): 12.340 (V)
  • Brightness in secondary minimum (Mag): 12.080 (V)
  • Astrophysical interest: Possible period changes
  • Created: 5/27/2003
  • Created by: admin
Show list of observations >>
Periodic elements:
  • Period (d): 0.311639500000000
  • Epoch (HJD): 34243.53800
  • Secondary Epoch (HJD): 34243.38200
Change log:

11/11/2026, Filip Walter:

  • Astrophysical interest: Nothing → Possible period changes
  • Secondary Epoch: Null → 34243.382
  • Epoch: 2434243.382 → 34243.538
  • Period: 0.31163818 → 0.3116395
  • Secondary Epoch: 34243.382 → Null
  • Epoch: 34243.538 → 2434243.382
  • Period: 0.3116395 → 0.31163818
  • Variability type: EC → EW/KW
  • Declination: -46.4491944441 → -46.4492
  • Right ascension: 63.5765416617 → 63.57652
  • Name: SY → SY Hor
  • CI: UsnoB: Null → USNO-B1.0 0435-00033270
  • CI: Ucac4: Null → UCAC4 218-004328
  • CI: Tyc: Null → TYC 8068-1275-1
  • CI: TwoMass: Null → 2MASS J04141836-4626571
  • CI: Tic: Null → TIC 152507230
  • CI: Other: Null → 1SWASP J041418.36-462657.1, CD-46 1350, SON 4832
  • CI: Gsc: Null → GSC 08068-01275
  • CI: Gcvs: Null → SY Hor
  • CI: Gaia: Null → Gaia DR3 4837289900184985728
  • CI: AsasSnV: Null → ASASSN-V J041418.48-462656.6
  • CI: Asas: Null → ASAS J041419-4626.9

Chart
SY Hor
Source: The STScI Digitized Sky Survey · DSS2 color composite, FoV: 15 x 15 arcmin
Number of observations

17 x

Number of observers

3 x

Last observed before

0 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2434243.538 + 0.3116395 * E
S: M = 2434243.382 + 0.3116395 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline