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Name
  V1488 Cyg  
AAVSO UID
000-BCL-114 (730 observations)  
Constellation
Cygnus Sequence
J2000.0
20 15 28.30 +47 42 51.0  (303.86792 +47.71417) Search nearby
B1950.0 20 13 55.55 +47 33 35.3
Galactic coord. 83.669 +7.046
Other names

(Internal only)
32 Cyg omi Cyg 2 AAVSO 2012+47
BD+47 3059 HD 192909 HD 192910
HIP 99848 HR 7751 IRC +50322
RAFGL 2540 SAO 49385  
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Variability type
EA/GS/D
Spectral type K5Iab+B4IV-V
Mag. range
3.9 - 4.14 V
Discoverer --
Epoch
01 Nov 1971 (HJD 2441256.96) Ephemeris
Outburst --
Period 1147.4 d  (3.14 y)
Rise/eclipse dur. 15%  (25 weeks)
Remarks
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1 GCVS Team 32 Cyg. Probably enters a common system with V695 Cyg (31 Cyg). 0 < d < 0.011P. P var. Min I = 2420670.0 + 1140.1d*E (JD2411400 - 29700). Since JD2429700 - see Table. The epoch of the eclipse of the B4 type Component by the K5 type component is given. There is also small physical light variability of the K component [G.Hill, G.L.C.Aikman, R.W.Hilditch, E.L.Pfannenschmidt, P.F.Younger, Victoria Publ 15, N10, 389, 1980., E.Guinan, G.McCook, M.Garhart, BAAS 14, 543, 1982.]. Depth of eclipses depends of lambda: 0.04M V, 0.13m B, 0.27m (lambda 4243A),0.90m (lambda 3552A).
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References
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1 U.K.Gehlich, J.Proelss, R.Wehmeyer, AsAp 29, 165, 1972. 1972A&A....20..165G
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Supporting Documents
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Revision History
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2 Admin, VSX 2010-01-05 04:43 UTC Update from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.