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Details for Revision 2
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Name
  S Vul  
AAVSO UID
000-BCJ-026 (3667 observations)  
Constellation
Vulpecula Sequence
J2000.0
19 48 23.81 +27 17 11.4  (297.09921 +27.28650) Search nearby
B1950.0 19 46 20.76 +27 09 38.8
Galactic coord. 63.445 +0.830
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J19482380+2717114 AAVSO 1944+27 ASAS J194824+2717.2
BD+26 3674 DO 18187 GC 27419
GCRV 12173 GSC 02147-00133 Gaia DR3 2027971514401523456
HD 338867 IRAS 19463+2709 PPM 109748
SAO 87743 TIC 435554567 TYC 2147-133-1
UCAC4 587-093891    
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Variability type
DCEP
Spectral type G0-K2(M1)
Mag. range
8.69 - 9.42 V
Discoverer --
Epoch
30 Sep 1979 (HJD 2444147.2) Ephemeris
Outburst --
Period 68.464 d
Rise/eclipse dur. 29%  (19.9 d)
Remarks
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1 Otero, Sebastian Alberto P= 68.91 d. between 2003 and 2023 (ASAS-3 and AAVSO V data).
2 GCVS Team In the region of the open cluster C 1947 + 272 [D.G.Turner, JRAS Can 79, N4, 175, 1985.]. P var. Max = 2401772 + 67.37d*E (JD2401760 - 6400), Max = 2408180 + 67.70d*E (JD2408170 - 14950), Max = 2415285 + 68.26d*E (JD2415300 - 22800), Max = 2423468 + 67.72d*E (JD2423450 - 27200), Max = 2428227 + 68.18d*E (JD2428220 - 31300) [P.Ahnert, AN 276, 133, 1948.]; Max = 2432775 + 67.51d*E (JD2431300 - 34500) [F.Mahmoud, L.Szabados, IBVS N1895, 1980.]; Max = 2437150 + 68.66d*E (JD2436800 - 39600), Max = 2441507 + 67.344d*E (JD2439600 - 43000) [E.N.Makarenko, Astron. Tsirk. N1003, 4, 1978.]; since JD2443000 see Table. [A/H] = 0.1.
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References
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1 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
2 F.Mahmoud, L.Szabados, IBVS N1895, 1980. 1980IBVS.1895....1M
3 C.Payne, HB N883, 1931. --
4 Cannon, A. J., 1907, Second catalogue of variable stars 1907AnHar..55....1C
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Supporting Documents
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Stellar Association Membership
 Turner 1 Open Cluster 2012A&A...548A..97Z
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Otero, Sebastian Alberto 2024-04-29 18:59 UTC Period, epoch, range and rise duration from AAVSO and ASAS-3 data.
3 Fernig, Leo 2022-04-22 13:35 UTC Discoverer updated from 1907AnHar..55....1C page 26
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.