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Latest Details
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Log in to retrieve additional aliases from SIMBAD. |
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| Name |
V1223 Sgr |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
18 51 49.21 -31 13 40.0 |
| Proper motion |
| RA: 2.2 +/- 1.3 mas/y | Dec: -22.4 +/- 1.3 mas/y | Source: UCAC4 |
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| Galactic coord. |
4.958 -14.355 |
Other names
(Internal only)
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Please note that aliases shown in grey link to obsolete records.
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1RXP J18551.9-310946 |
1RXS J185502.1-310951 |
1WGA J1855.0-3109 |
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2MASS J18550231-3109495 |
2RXP J185502.3-310954 |
2RXS J185502.1-310951 |
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2XMM J185502.3-310948 |
3A 1851-312 |
3XMM J185502.2-310950 |
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4U 1849-31 |
AAVSO 1848-31 |
ASASSN-V J185502.22-310950.9 |
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Downes V1223 Sgr |
UCAC4 295-217956 |
X 18518-312 |
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XMMOM J185502.3-310949 |
XMMSL1 J185502.6-310937 |
XMMSL2 J185502.6-310939 |
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| Variability type |
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UG/DQ+VY |
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| Spectral type |
pec(e+cont) |
| Mag. range |
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11.2 CV - <16.8 B |
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| Discoverer |
-- |
| Epoch |
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| Outburst |
-- |
| Period |
0.140244 d (3.3659 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 |
2009arXiv0910.0954S |
White dwarf spin period = 746 seconds. |
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GCVS Team |
As a rule has a persistent high state; five drops by two to more than three magnitudes have been registered and a twelve year interval of irregular variations at intermediate magnitudes. According to [B.Warner, M.Cropper, MN 206, N2, 261, 1984.] there are slow variations in brightness by 0.15m on a time scale of ~1 day. They are superimposed by variations with the orbital period P orb (Max = 2444749.9866 + 0.140239d*E) and with amplitude up to 0.15m. These variations in their turn are superimposed by the others: with P = 794.38s and the amplitude from 0.03m up to 0.15m (Max = 2444750.00404 + 0.009194215d*E and (sometimes) with P = 849.8s and a twice smaller amplitude (Max = 2444750.00350 + 0.00983588d*E). Besides there are rapid brightness variations on time scales 10 - 100s by 0.10m - 0.20m, and high frequency flickering by 0.05m. According to [W.R.Penning, ApJ 289, 300, 1985.], the period of X-ray pulses associated with the rotation of the compact object is 12.5 minutes. |
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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, 2020, vsnet-chat #8489 |
-- |
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2 |
S. Scaringi et al., 2009, arXiv:0910.0954v1 [astro-ph.GA] |
2009arXiv0910.0954S |
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R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) |
2005JAD....11....2D |
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R.A. Downes et al., 2001, PASP 113, 764 |
2001PASP..113..764D |
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5 |
Garnavich, P.; Szkody, P., 1988, Observed Low States in DQ Herculis Systems |
1988PASP..100.1522G |
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6 |
E.P.Belseren, BAAS 13, N2, 524, 1981. |
1981BAAS...13Q.524B |
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7 |
J.E.Steiner, D.A.Schwartz, F.J. Jablonski, I.C.Busko, M.G.Watson, J.P.Pye,
I.M.McHardy, ApJ 249, L 21, 1981. |
1981ApJ...249L..21S |
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External Links
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Location
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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 = 12.81 | H = 12.74 | K = 12.64 | J - K = 0.17 |
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AllWISE
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W1 = 12.49 | W2 = 11.87 | W3 = 10.65 | W1 - W2 = 0.62 |
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APASS-DR9
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i' = 13.30 |
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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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Revision History
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Currently approved revision is checked. Click revision number to view details of that revision.
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