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Details for Revision 4
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Name
  R Sge  
AAVSO UID
000-BCL-008 (14459 observations)  
Constellation
Sagitta Sequence
J2000.0
20 14 03.74 +16 43 35.0  (303.51558 +16.72639) Search nearby
B1950.0 20 11 46.73 +16 34 25.8
Galactic coord. 57.527 -9.755
Other names

(Internal only)
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AAVSO 2009+16 ASAS J201404+1643.6 BD+16 4197
HD 192388 SAO 105871  
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Variability type
RVB
Spectral type G0Ib-G8Ib
Mag. range
8.0 - 10.5 V
Discoverer --
Epoch
17 Nov 1978 (HJD 2443830.00) Ephemeris
Outburst --
Period 70.77 d
Rise/eclipse dur. --
Remarks
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1 GCVS Team P var (70.07d <= P <= 71.24d [B.P.Gerasimovic, L.Hufnagel, HC N340, 1929.]. Period variation study [I.G.Zhdanova, Izv. Glav. Astron. Obs. AN USSR 1, Issue 2, 69, 1956.]. The elements given in the Table are valid since JD2434000. The mean brightness varies: Min = 2414402 + 1112.d*E [V.P.Zessewitsch, Perem. Zvezdy 8, N2, 121, 1951.].
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References
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1 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
2 C.Payne-Gaposchkin, V.K.Brenton, S.Gaposchkin, HA 113, N1, 1943. 1943AnHar.113....1P
3 Sternberg, B., 1927, Messungen von veranderlichen Sternen in der Jahren
1925-1926		 1927PAICU...7D...1S
4 Sternberg, B., 1927, Messungen von veranderlichen Sternen in der Jahren
1925-1926		 1927PAICU...7D...1S
5 Cannon, A. J., 1907, Second catalogue of variable stars 1907AnHar..55....1C
6 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.		 --
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Supporting Documents
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Revision History
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5 Fernig, Leo 2022-04-22 13:35 UTC Discoverer updated from 1907AnHar..55....1C page 28
4 Billiaert, Bruno 2015-05-27 09:42 UTC Reference added.
3 Otero, Sebastian Alberto 2011-01-17 20:22 UTC Primary record creation. Minimum magnitude revised from ASAS-3 data.
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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