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Details for Revision 4
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Name
  RZ Vul  
AAVSO UID
000-BCH-929 (8633 observations)  
Constellation
Vulpecula Sequence
J2000.0
19 47 14.14 +19 29 17.3  (296.80892 +19.48814) Search nearby
B1950.0 19 45 01.50 +19 21 49.6
Galactic coord. 56.575 -2.874
Other names

(Internal only)
2MASS J19471412+1929173 AAVSO 1942+19 AN 118.1905
ASAS 194714+1929.3 GSC 01623-01476 IOMC 1623000040
IRAS 19450+1921    
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Variability type
RVB
Spectral type G2IV/V:
Mag. range
11.7 - 15.0 V
Discoverer --
Epoch
31 May 2008 (HJD 2454618.0) Ephemeris
Outburst --
Period 89.5 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Long period minima elements: JD 2454360 + 1320 d. x E
2 Otero, Sebastian Alberto J-K= 1.56. AAVSO observations show a marked increase of the minima depth after 2000.
3 Gandet, Thom L. Meinunger, 1966, IBVS No. 135 finds RZ Vul to be UG nova-like. V. Tsessevich, 1977, IBVS No, 1371 finds RZ Vul to be RV(b)-like. B. Schaefer, 1986, ApJ 307, 644 finds RZ Vul to be a normal RCB.
4 GCVS Team Slow variations of mean brightness with P = 1410D and A = 2m are superimposed by fluctuations with the cycle 40 - 100d and A up to 1m.
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References
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1 P. Tisserand, G.C. Clayton, D.L. Welch, B. Pilecki, L. Wyrzykowski, D.
Kilkenny, 2012, arXiv:1211.2475 [astro-ph.SR]		 2012arXiv1211.2475T
2 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)		 2012arXiv1210.0821A
3 The All Sky Automated Survey 2002AcA....52..397P
4 Schaefer, B. E., 1986, R Coronae Borealis stars and planetary nebulae 1986ApJ...307..644S
5 V.Harvig, L.Leis, L.Kalv, P.Kalv, Tartu Publ 48, 150, 1981. --
6 IBVS #1371 1977IBVS.1371....1T
7 Hartwig, E.; Muller, G., 1921, Benennung von neu entdeckten veraenderlichen
Sternen		 1921AN....212..353.
8 M.U.G.Wolf, AN 170, 361, 1906. 1906AN....170..361W
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Supporting Documents
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Revision History
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6 Fernig, Leo 2023-03-29 20:24 UTC Discoverer updated from 1921AN....212..353. page 372.
5 Admin, VSX 2012-11-14 02:32 UTC Update from [2012arXiv1211.2475T].
4 Otero, Sebastian Alberto 2011-07-04 08:45 UTC Long period elements and reference for the RV-type added.
3 Otero, Sebastian Alberto 2011-07-04 08:37 UTC Type, period, epoch and range from ASAS-3 and AAVSO 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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