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
  MZ Cyg  
AAVSO UID
000-BDN-379 (1960 observations)  
Constellation
Cygnus Sequence
J2000.0
21 21 54.72 +37 27 33.1  (320.47800 +37.45919) Search nearby
B1950.0 21 19 53.63 +37 14 43.1
Proper motion
RA: -2.805 +/- 0.198 mas/yDec: -5.285 +/- 0.247 mas/ySource: Gaia DR1
Galactic coord. 83.413 -8.853
Other names

(Internal only)
1SWASP J212154.71+372732.9 2MASS J21215472+3727330 AN 89.1931
ASASSN-V J212154.69+372733.3 GSC 02715-02269 HIP 105485
IOMC 2715000079 NSVS 5902226 NSVS 8683225
NSVS 8704961 TYC 2715-2269-1  
(Not logged in)  Add name
Variability type
RVA
Spectral type F5-G5e:
Mag. range
10.95 - 12.7 V
Discoverer --
Epoch
11 Jun 1992 (HJD 2448785.00) Ephemeris
Outburst --
Period 42.82 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 Otero, Sebastian Alberto Period changes. From 1989 to 2004 the period remained stable at 42.82 d. then there was a period increase. APASS data from 2012 and SuperWASP data from 2006-2007 indicate a period of 42.9 d.
2 GCVS Team P var. Max = 2427641.914 + 21.162460d*E + 0.10575d*10**(-3)*E**2 (JD2414900 - 37900) [V.M.Grigorevskij, Perem. Zvezdy 15, N3, 321, 1964.]; since JD2443600 - see Table. Probably it is an RV Tau type variable, and then the period should be doubled [G.E.Erleksova, IBVS N1663, 1979.]. [A/H] = 0.1.
(Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Henden, A. A.; et al., 2012, Data Release 3 of the AAVSO All-Sky
Photometric Survey (APASS)
2012JAVSO..40..430H
2 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
3 Catalogue of Stellar Spectral Classifications (Skiff, 2010) 2010yCat....102023S
4 T.S.Meshkova, Perem. Zvezdy 5, 271, 1940. --
5 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
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 = 9.77H = 9.40K = 9.22J - K = 0.56
AllWISE W1 = 9.11W2 = 9.05W3 = 9.08W4 = 8.89W1 - W2 = 0.06W3 - W4 = 0.19
APASS-DR9 B = 12.07V = 11.29g' = 11.44r' = 10.99i' = 10.74B - V = 0.78
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Image not downloaded. Click Retrieve Image to download and view. Retrieve image
Supporting Documents
Click document name to open or save. Browser plug-in or other software may be required for viewing.
1 Phase plot Otero, Sebastian Alberto 2015-10-02 02:09 UTC Phase plot with NSVS, HIPPARCOS, Berdnikov, SuperWASP, APASS and INTEGRAL-OMC data.
(Not logged in)  Add document
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Otero, Sebastian Alberto 2015-10-02 02:09 UTC Period, epoch and range from NSVS, HIPPARCOS, Berdnikov, SuperWASP, APASS and INTEGRAL-OMC data. HIPPARCOS position.
3 Otero, Sebastian Alberto 2011-08-28 03:04 UTC Type from IBVS 1663. Spectral type from Skiff (2010).
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.