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Name
  T Mon  
AAVSO UID
000-BBL-244 (12709 observations)  
Constellation
Monoceros Sequence
J2000.0
06 25 13.00 +07 05 09.0  (96.30417 +7.08583) Search nearby
B1950.0 06 22 31.00 +07 06 53.2
Galactic coord. 203.632 -2.555
Other names

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AAVSO 0619+07 ASAS J062513+0705.1 BD+07 1273
HD 44990 HIP 30541 HR 2310
SAO 113845    
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Variability type
DCEP
Spectral type F7Iab-K1Iab+A0V
Mag. range
5.58 - 6.62 V
Discoverer --
Epoch
03 Oct 1978 (HJD 2443784.615) Ephemeris
Outburst --
Period 27.024649 d
Rise/eclipse dur. 27%
Remarks
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1 GCVS Team SB (Porb> = 70 yr [I.M.Coulson, MN 203, N3, 925, 1983.]). [A/H] = 0.3. There is a sguare term in the elements given in the Table: +5.34d*10**(-6)*E**2. Deviations from the parabola in the O - C, E diagram have a wave-like trend. If this wave is attributed to the light-time effect, Porb = 100 years. The observations are also satisfied by the following system of linear elements: Max = 2412874.56 + 27.0093d*E (JD2405200 - 15250) [A.V.Nielsen, AN 239, 217, 1930.]; Max = 2426004.62 + 27.0180d*E (JD2415250 - 27150); since JD2427150 - Max = 2436137.090 + 27.0205d*E [P.P.Parenago, Perem. Zvezdy 11, N4, 236, 1958.].
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References
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1 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
2 L.Szabados, Bud Mitt N77, 1981. 1981CoKon..77....1S
3 A.Wroblewski, Urania 26, 339, 1955. --
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Supporting Documents
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Stellar Association Membership
 Platais 6 Open Cluster 2012A&A...548A..97Z
Revision History
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2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.