V0345 Lac (Eclipsing binary)

RA: 22h 18m 43.34s, DE: +54° 40' 33.38" (334.6805800000, 54.6759400000)

AsasSnV: ASASSN-V J221843.43+544034.3, Gaia: Gaia DR3 2005071229786849664, Gcvs: V0345 Lac, Gcvs: V345 Lac, Gsc: GSC 03986-02900, Tic: TIC 421726141, TwoMass: 2MASS J22184332+5440334, Tyc: TYC 3986-2900-1, Other: VV 464, Other: WISEA J221843.32+544033.5

Data:
  • Constellation: Lac
  • Variability type: EA/DM
  • Maximal brightness (Mag): 11.100 (P)
  • Minimum brightness (Mag): 11.700 (P)
  • Brightness in secondary minimum (Mag): 11.600 (P)
  • Astrophysical interest: Apsidal motion, Excentric orbit of the binary, Light time effect (LTE)
  • Created: 8/23/1996
  • Created by: admin
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Periodic elements:
  • Period (d): 7.491890000000000
  • Epoch (HJD): 31344.37700
  • Secondary Epoch (HJD): 31347.07300
Change log:

10/8/2026, Filip Walter:

  • Astrophysical interest: Nothing → Apsidal motion, Excentric orbit of the binary, Light time effect (LTE)
  • Variability type: EA → EA/DM
  • Declination: 54.6759444438 → 54.67594
  • Right ascension: 334.6805833333 → 334.68058
  • Name: V0345 → V0345 Lac
  • CI: Tyc: Null → TYC 3986-2900-1
  • CI: TwoMass: Null → 2MASS J22184332+5440334
  • CI: Tic: Null → TIC 421726141
  • CI: Other: Null → VV 464, WISEA J221843.32+544033.5
  • CI: Gsc: Null → GSC 03986-02900
  • CI: Gcvs: Null → V0345 Lac, V345 Lac
  • CI: Gaia: Null → Gaia DR3 2005071229786849664
  • CI: AsasSnV: Null → ASASSN-V J221843.43+544034.3

Chart
V0345 Lac
Source: The STScI Digitized Sky Survey, FoV: 15 x 15 arcmin
Number of observations

18 x

Number of observers

4 x

Last observed before

5508 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2431344.377 + 7.49189 * E
S: M = 2431347.073 + 7.49189 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline