Revise New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
Name
CQ Dra
AAVSO UID
Constellation
J2000.0
B1950.0
12 27 55.89 +69 28 41.0
Proper motion
Galactic coord.
125.748 +47.810
Other names(Internal only)
Please note that aliases shown in grey link to obsolete records.
4 Dra
AAVSO 1225+69
ASASSN-V J123006.44+691204.4
BD+70 700
DO 34086
Downes CQ Dra
HD 108907
HIP 60998
HR 4765
IRC +70113
RAFGL 1555
SAO 15816
(Not logged in) Add name
Variability type
ZAND:
Spectral type
M3IIIa+WD:
Mag. range
4.90 - 5.12 V
Discoverer
--
Epoch
Outburst
--
Period
1703 d (4.66 y)
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
Downes remark: "CQ Dra is a Mira-type variable with a spectroscopic CV companion. It is not clear whether the system is triple (with the period quoted [0.1656 d.] being the orbital period of a CV binary) or double (with the period quoted [0.1656 d.] being the rotation period of an accreting magnetic white dwarf; (2003MNRAS.346..855W ) claim the object is a symbiotic variable rather than a cv based on the x-ray properties."
The photometric variability contradicts the above, the star is not a mira-variable.
According to 2003MNRAS.346..855W the case for a 4 h. periodic modulation is not strong.
(Not logged in) Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1
R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version)
2005JAD....11....2D
2
X-ray observations of 4 Draconis: symbiotic binary or cataclysmic triple?
2003MNRAS.346..855W
3
C. Koen, L. Eyer, 2002, MNRAS 331, 45
2002MNRAS.331...45K
4
R.A. Downes et al., 2001, PASP 113, 764
2001PASP..113..764D
5
O.J.Eggen, ApJ Suppl 14, N131, 307, 1967.
1967ApJS...14..307E
External Links
Links open in a new window. Not all links may be valid for this particular target.
Location
-- Select --
AAVSO Variable Star Plotter
AAVSO Light Curve
AAVSO WebObs
APASS
AAVSOnet EPD
SIMBAD
SIMBAD Clickable Map
SIMBAD Coordinate query
VizieR Search
Aladin Java Applet
CDS Portal
CDS Biblio
SDSS Navigate Tool
GCVS
Downes
ASAS-SN Variable
ASAS-SN Sky Patrol
Hipparcos Epoch Photometry Data
Hipparcos Epoch Photometry Plot
NSVS
CRTS
ZTF
SuperWASP
Pan-STARRS1 Data
Pan-STARRS1 Images
SkyMorph
Kamogata Wide-field Survey (KWS)
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 = 1.55 H = 0.56 K = 0.45 J - K = 1.10
AllWISE
W3 = 0.13 W4 = 0.09 W3 - W4 = 0.05
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
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
