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 Revise  New Search
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Details for Revision 3
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Log in to retrieve additional aliases from SIMBAD. |
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| Name |
AM CVn |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
12 32 28.48 +37 54 15.5 |
| Galactic coord. |
140.234 +78.938 |
Other names
(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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AAVSO 1229+38 |
Downes AM CVn |
EGGR 91 |
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PG 1232+379 |
X 12324+379 |
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(Not logged in) Add name
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| Variability type |
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IBWD |
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| Spectral type |
DBp |
| Mag. range |
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14.0 - 14.4 CV |
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| Discoverer |
-- |
| Epoch |
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| Outburst |
-- |
| Period |
0.01190662 d (17.14553 min) |
| 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 |
GCVS Team |
The light curve is a double wave. Min II sometimes disappears. The depth of Min I changes also. Epoch of Min I is given in the Table. P var; dP/dt = +0.012s per year. Elements for 1978 are given in the Table. The brightness fluctuates with the cycle of 115 - 120s, sometimes the periodicity with P = 26.3s is observed. Probably it is a close binary semidetached system of two white dwarfs with an accretion disk and a hot spot. |
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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 |
Gaia Collaboration; et al., 2018, Gaia Data Release 2. Summary of the
contents and survey properties |
2018A&A...616A...1G |
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2 |
Light curve from CRTS/CSS (Drake et al. 2009, ApJ, 696, 870) |
2009ApJ...696..870D |
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3 |
Kinematics of the ultracompact helium accretor AM Canum Venaticorum |
2006MNRAS.371.1231R |
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Kinematics of the ultracompact helium accretor AM Canum Venaticorum |
2006MNRAS.371.1231R |
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5 |
R.A.Downes, 2001, PASP 113, 764 (2006 archival) |
2005JAD....11....2D |
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6 |
R.A. Downes et al., 2001, PASP 113, 764 |
2001PASP..113..764D |
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7 |
J.Patterson, R.E.Nather, E.L.Robinson, F.Handler, ApJ 232,819, 1979. |
1979ApJ...232..819P |
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8 |
J.Smak, AA 17, 255, 1967. |
1967AcA....17..255S |
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External Links
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Location
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Select a Location for more details.
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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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Revision History
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Currently approved revision is checked. Click revision number to view details of that revision.
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4 |
Otero, Sebastian Alberto
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2020-05-14 23:56 UTC |
Gaia DR2 position. |
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3 |
Otero, Sebastian Alberto
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2011-02-14 23:32 UTC |
Primary record creation. Orbital period from reference. Type from Downes (2001). Range from CTRS light curve. 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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