AAVSO Home



Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
Name
  PU Vul  
AAVSO UID
000-BCL-393 (29032 observations)  
Constellation
Vulpecula Sequence
J2000.0
20 21 13.31 +21 34 18.7  (305.30546 +21.57186) Search nearby
B1950.0 20 19 01.15 +21 24 43.7
Proper motion
RA: -4.585 +/- 2.341 mas/yDec: -6.236 +/- 1.941 mas/ySource: Gaia DR1
Galactic coord. 62.575 -8.532
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 2016+21 ASAS J202114+2134.3 Downes PU Vul
NSVS J2021133+213416    
(Not logged in)  Add name
Variability type
NC
Spectral type A4II-F8Iab+M6IIIe
Mag. range
8.7 - 16.6 p
Discoverer M. Honda, Y. Kuwano
Epoch
--
Outburst 1979
Period 268 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 2013arXiv1312.6063G Pulsation period 138d.
2 GCVS Team Pre-outburst SP M4 (1958). Gradual light increase in 1977 - 79 up to 8.7m V; in 1979 A = 0.29M V, Min I = 2443943.39 + 78.12d*E [D.Chochol, L.Hric, J.Papousek, IBVS N2059, 1981.]. In the max of 1979 Sp F5Ia - F8-9I. In February 1980 an abrupt light decrease started; the star reached V = 13.65m by early September. By September, 1981 the star recovered from the deep Min of 500d duration. During the 1980 - 81 minimum Sp M5 with TiO bands, emissions of Halpha, NaD, [OII], FeII, rare earths. In 1982 - 84 8.35m - 8.87m V, Sp became F again. Simetimes Halpha, Hbeta emissions have been detected, often with P Cyg profiles.
(Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 M. Gromadzki, J. Mikolajewska, I. Soszynski, 2013, arXiv:1312.6063
[astro-ph.SR]
2013arXiv1312.6063G
2 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
3 P.R. Wozniak, S.J. Williams, W.T. Vestrand, V. Gupta, AJ 128, 2965, 2004 2004AJ....128.2965W
4 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
5 T.S.Belyakina, N.I.Bondar, D.Chochol, K.K.Chuvaev, Yu.S.Efimov,
R.E.Gershberg, J.Grygar, L.Ilric, V.I.Krasnobabtsev, P.P.Petrov,
V.V.Piirola, I.S.Savanov, N.I.Shakhovskaya, N.M.Shakhovskoj, V.I.Shenavrin,
AsAp 132, N2, L 12, 1984.
1984A&A...132L..12B
6 M.Honda, K.Ishida, T.Noguchi, Y.Norimoto, M.Nakagiri, T.Soyano,
Y.Yamashita, Tokyo Bull, ser.II, N262, 1979.
--
External Links
Links open in a new window. Not all links may be valid for this particular target.
Location    Go   
Select a Location for more details.
Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 7.42H = 6.54K = 6.12J - K = 1.30
AllWISE W1 = 5.92W2 = 5.74W3 = 5.14W4 = 4.32W1 - W2 = 0.18W3 - W4 = 0.82
APASS-DR9 B = 12.88V = 12.55g' = 12.63r' = 11.18i' = 11.02B - V = 0.34
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Image not downloaded. Click Retrieve Image to download and view. Retrieve image
Supporting Documents
There are currently no supporting documents on file for this star. (Not logged in)  Add document
Campaigns/Programs
 Legacy CVs
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
5 Otero, Sebastian Alberto 2018-06-10 20:38 UTC Primary record creation.
4 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
3 Admin, VSX 2009-09-22 20:54 UTC Added year of nova outburst.
2 Admin, VSX 2007-03-23 15:52 UTC Discoverer added.
1 Admin, VSX 2005-12-17 20:33 UTC Initial database population.