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Latest Details
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Log in to retrieve additional aliases from SIMBAD. |
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| Name |
ASAS J193833+4604.0 |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
19 37 01.88 +45 57 04.5 |
| Proper motion |
| RA: 2.8 +/- 0.6 mas/y | Dec: -2.7 +/- 0.7 mas/y | Source: UCAC4 |
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| Galactic coord. |
79.019 +11.674 |
Other names
(Internal only)
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2MASS J19383260+4603591 |
ASAS 193833+4604.0 |
ASASSN-V J193832.58+460359.1 |
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EQ J1938+4603 |
KIC 09472174 |
KIC 9472174 |
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KID 09472174 |
Kepler-451 |
NSVS 5608178 |
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NSVS 5629361 |
TIC 271164763 |
TYC 3556-3568-1 |
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UCAC4 681-071768 |
WISEA J193832.61+460358.9 |
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(Not logged in) Add name
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| Variability type |
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EA/HW+V361HYA |
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| Spectral type |
sdB+dM |
| Mag. range |
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12.05 V (0.174)Kp |
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| Discoverer |
-- |
| Epoch |
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| Outburst |
-- |
| Period |
0.125765282 d (3.0183668 h) |
| Rise/eclipse dur. |
8% (0.24147 h) |
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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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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 |
Schaffenroth, V.; Barlow, B. N.; Geier, S.; et al., 2019, The EREBOS
project: Investigating the effect of substellar and low-mass stellar
companions on late stellar evolution. Survey, target selection, and
atmospheric parameters |
2019A&A...630A..80S |
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2 |
Baran, A. S.; Zola, S.; Blokesz, A.; et al., 2015, Detection of a planet in
the sdB + M dwarf binary system 2M 1938+4603 |
2015A&A...577A.146B |
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3 |
R.W. Slawson et al., 2011, arXiv:1103.1659v1 [astro-ph.SR] |
2011arXiv1103.1659S |
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4 |
R.W. Slawson et al., 2011, arXiv:1103.1659v1 [astro-ph.SR] (Light curve) |
2011arXiv1103.1659S |
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5 |
R.H. Ostensen et al., 2010, arXiv:1006.4267v1 [astro-ph.SR] |
2010arXiv1006.4267O |
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6 |
A. Prsa et al., 2010, arXiv:1006.2815v1 [astro-ph.SR] (Light curve) |
2010arXiv1006.2815P |
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7 |
A. Pigulski, G. Pojmanski, B. Pilecki, D. Szczygiel, 2008,
arXiv:0808.2558v2 [astro-ph] |
2008arXiv0808.2558P |
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8 |
A. Pigulski, G. Pojmanski, B. Pilecki, D. Szczygiel, 2008,
arXiv:0808.2558v2 (online data) |
2008arXiv0808.2558P |
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9 |
Kepler data (MAST) |
-- |
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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 = 12.76 | H = 12.89 | K = 12.96 | J - K = -0.20 |
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AllWISE
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W1 = 12.86 | W2 = 12.92 | W3 = 12.67 | W1 - W2 = -0.06 |
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APASS-DR9
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B = 11.92 | V = 12.10 | g' = 11.89 | r' = 12.29 | i' = 12.61 | B - V = -0.18 |
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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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8 |
Otero, Sebastian Alberto
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2021-05-12 21:45 UTC |
Period, epoch, eclipse duration and amplitude from 2015A&A...577A.146B. |
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7 |
Otero, Sebastian Alberto
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2020-10-24 00:02 UTC |
Gaia DR2 position. |
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6 |
Admin, VSX
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2017-12-26 21:32 UTC |
Added HW Vir-subtype. |
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5 |
Admin, VSX
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2011-03-13 04:50 UTC |
Update from [2011arXiv1103.1659S]. |
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4 |
Admin, VSX
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2010-06-24 01:54 UTC |
Update from [2010arXiv1006.4267O]. |
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3 |
Admin, VSX
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2010-06-19 02:03 UTC |
Update from [2010arXiv1006.2815P]. |
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2 |
Wils, Patrick
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2010-03-17 02:44 UTC |
With V-I = -0.25 (ASAS) and J-Ks = -0.20 (2MASS), this is a very blue object, not even taking into account possible interstellar extinction (E(B-V) = 0.156 in the direction of the object). The available magnitudes in different passbands (2MASS, CMC14, Tycho-2, ASAS) suggest a temperature of around 30000K.
The larger amplitude in I of the ASAS data (compared to the amplitude in V) points to reflection of the light of the hot star on the surface of a faint companion, rather than to pulsation (in which case the amplitude in V would be larger) or to changing aspects of an ellipsoidal shape (in which case the amplitudes would be similar).
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1 |
Admin, VSX
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2008-08-23 01:31 UTC |
Preserved original object data. |
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