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Latest Details
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Log in to retrieve additional aliases from SIMBAD. |
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| Name |
AB Dra |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
19 51 04.15 +77 36 40.6 |
| Proper motion |
| RA: -8.2 +/- 1.4 mas/y | Dec: -9.9 +/- 3.0 mas/y | Source: UCAC4 |
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| Galactic coord. |
109.974 +23.486 |
Other names
(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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1RXS J194907.8+774415 |
1WGA J1949.1+7744 |
2E 1951.0+7736 |
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2E 4296 |
2MASS J19490658+7744232 |
2RXS J194906.7+774421 |
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2XMM J194906.4+774423 |
3XMM J194906.5+774423 |
AAVSO 1953+77 |
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AN 90.1934 |
ASASSN-V J194906.49+774422.8 |
Downes AB Dra |
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GALEX J194906.6+774423 |
GALEX J194906.7+774423 |
GALEX J194906.8+774423 |
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GSC 04588-01570 |
GSC2.3 N0YS000401 |
LPM +77.0445 |
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NSVS 1256106 |
PPMX J194906.5+774423 |
SBC9 1189 |
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SDSS J194906.51+774423.2 |
TASS4 3612140 |
TIC 237232687 |
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UCAC4 839-016781 |
WEB 17146 |
WISE J194906.51+774423.1 |
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WISEA J194906.52+774423.2 |
XMMOM J194906.5+774424 |
ZTF22aaeeiku |
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ZTF22aagqayq |
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(Not logged in) Add name
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| Variability type |
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UGZ |
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| Spectral type |
pec(UG) |
| Mag. range |
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12.3 - 16.2 V |
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| Discoverer |
Otto Morgenroth |
| Epoch |
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| Outburst |
-- |
| Period |
0.1520 d (3.65 h) |
| Rise/eclipse dur. |
-- |
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Remarks
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Some references may be clicked to view in new window. Roll over index number to view submission details.
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1 |
Schmeer, Patrick
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Gaia DR2 parallax 2.4421 ± 0.0265 mas (distance 404.7 ± 4.4 pc). |
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2 |
Linnolt, Mike
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Since late 2014, this star has had a dramatic change in behavior. It has shown characteristics of standstill from Dec 2014 - Feb 2015, a few typical UG-like outbursts, then more irregular behavior since end of Apr 2015, with rapid and peculiar variations in brightness of reduced intermediate amplitudes. It may be a UGZ subtype, or some other type, but further data is needed to clarify. |
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3 |
Otero, Sebastian Alberto
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Never any standstill in decades of coverage. |
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4 |
Otero, Sebastian Alberto
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GCVS outburst cycle is 13.4 d. |
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(Not logged in) Add remark
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References
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Click reference title/citation to view in new window. Roll over index number to view submission details.
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1 |
T. Kato, 2018, vsnet-chat #8113 |
-- |
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2 |
Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0 |
2017PASP..129j4502K |
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3 |
T. Kato, 2017, vsnet-alert #21266 |
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4 |
R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) |
2005JAD....11....2D |
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5 |
R.A. Downes et al., 2001, PASP 113, 764 |
2001PASP..113..764D |
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6 |
M.Petit, JO 44, 6-10, 1961. |
1961JO.....44....6P |
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7 |
Morgenroth, O., 1934, 77 neue Veränderliche |
1934AN....252..389M |
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8 |
Simonsen, M. et al., The Z Cam List |
-- |
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External Links
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Links open in a new window. Not all links may be valid for this particular target.
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Location
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Go
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Select a Location for more details.
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Catalog Data
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Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
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2MASS
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J = 13.62 | H = 13.29 | K = 13.11 | J - K = 0.52 |
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AllWISE
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W1 = 12.39 | W2 = 12.27 | W3 = 12.94 | W1 - W2 = 0.12 |
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APASS-DR9
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B = 15.21 | V = 14.87 | g' = 15.07 | r' = 14.63 | i' = 14.18 | B - V = 0.34 |
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GALEX-DR5
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FUV = 15.29 | NUV = 15.02 | FUV - NUV = 0.28 |
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SDSS-DR12
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u = 15.62 | g = 15.53 | r = 15.28 | i = 15.08 | z = 14.90 | u - g = 0.09 | r - i = 0.19 |
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Images
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Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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There are currently no supporting documents on file for this star.
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(Not logged in) Add document
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Campaigns/Programs
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Z CamPaign
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Legacy CVs
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Revision History
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Currently approved revision is checked. Click revision number to view details of that revision.
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6 |
Schmeer, Patrick
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2019-02-20 13:31 UTC |
Type from vsnet-alert 21266 and vsnet-chat 8113. Minimum magnitude from ASAS-SN and AAVSO data data. Gaia DR2 position. Discoverer added from 1934AN....252..389M. |
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5 |
Linnolt, Mike
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2015-05-15 13:18 UTC |
Type changed from UGSS to UG due to major change in behavior since late 2014. |
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4 |
Otero, Sebastian Alberto
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2012-04-09 23:16 UTC |
Type from AAVSO data. |
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3 |
Otero, Sebastian Alberto
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2011-03-28 19:03 UTC |
Primary record creation. Orbital period and range from Downes (2001). UCAC3 position. |
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2 |
Admin, VSX
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2010-01-05 04:43 UTC |
Position updated from the GCVS version of November 2009. |
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1 |
Admin, VSX
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2005-12-18 01:33 UTC |
Initial upload. |
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