RU Mon (Eclipsing binary)

RA: 06h 54m 12.32s, DE: -07° 35' 45.00" (103.5513333333, -7.5958333330)

Tic: TIC 123887853, TwoMass: 2MASS J06541231-0735450, Gsc: GSC 05380-00802, Tyc: TYC 5380-802-1, Gcvs: RU Mon, Gaia: Gaia DR3 3099189237629013760

Data:
  • Constellation: Mon
  • Variability type: EA
  • Maximal brightness (Mag): 10.330 (V)
  • Minimum brightness (Mag): 11.180 (V)
  • Brightness in secondary minimum (Mag): 11.060 (V)
  • Astrophysical interest: Excentric orbit of the binary, Apsidal motion
  • Created: 6/1/1996
  • Created by: admin
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Periodic elements:
  • Period (d): 3.584835900000000
  • Epoch (HJD): 2460670.48033
  • Secondary Epoch (HJD): 2460671.62603
Additional data:
  • EPOCH (sec): 2456251.8685
Change log:

2/23/2026, Martin Mašek:

  • Secondary Epoch: 41744.84 → 2460671.6260303
  • Epoch: 41743.49 → 2460670.4803337
  • Period: 3.584645 → 3.5848359

1/21/2026, Filip Walter:

  • Name: RU → RU Mon
  • Astrophysical interest: Apsidal motion → Excentric orbit of the binary, Apsidal motion
  • Alternative designation: → Tic: TIC 123887853, TwoMass: 2MASS J06541231-0735450, Gsc: GSC 05380-00802, Tyc: TYC 5380-802-1, Gcvs: RU Mon, Gaia: Gaia DR3 3099189237629013760

11/19/2025, Filip Walter:

  • Astrophysical interest: Nothing → Apsidal motion

Chart
RU Mon
Source: The STScI Digitized Sky Survey
Number of observations

3 x

Number of observers

2 x

Last observed before

18 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2460670.48033 + 3.5848359 * E
S: M = 2460671.62603 + 3.5848359 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline