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Latest Details
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| Name |
HS 2231+2441 |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
22 31 59.14 +24 41 27.3 |
| Proper motion |
| RA: 13.9 +/- 1.4 mas/y | Dec: -20.7 +/- 1.7 mas/y | Source: UCAC4 |
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| Galactic coord. |
87.481 -28.327 |
Other names
(Internal only)
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2MASS J22342148+2456573 |
ASASSN-V J223421.59+245657.4 |
CRTS J223421.4+245656 |
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CSS_J223421.4+245656 |
GSC 02223-00214 |
SDSS J223421.49+245657.1 |
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UCAC2 40618939 |
UCAC4 575-132720 |
USNO-B1.0 1149-0563437 |
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VSX J223421.4+245657 |
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| Variability type |
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EA/HW |
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| Spectral type |
sdB+L |
| Mag. range |
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14.20 (0.4) CV |
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| Discoverer |
-- |
| Epoch |
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| Outburst |
-- |
| Period |
0.1105878 d (2.65411 h) |
| Rise/eclipse dur. |
11% (0.292 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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1 |
Wils, Patrick
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The cool companion must be at the low mass limit for an M dwarf star, with an orbital radial velocity semi-amplitude of K_1 = 49.1 km/s. |
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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 |
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 |
Almeida, L. A.; et al., 2017, HS 2231+2441: an HW Vir system composed by a
low-mass white dwarf and a brown dwarf |
2017arXiv170804623A |
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3 |
Drake, A. J.; et al., 2014, The Catalina Surveys Periodic Variable Star
Catalog (version May 24, 2017) |
2014ApJS..213....9D |
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4 |
Oestensen R., et al., 2007, HS 2231+2441: A New Eclipsing sdB Binary of the
HW Vir Type |
2007ASPC..372..483O |
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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 = 14.67 | H = 14.73 | K = 14.83 | J - K = -0.17 |
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AllWISE
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W1 = 15.04 | W2 = 15.19 | W1 - W2 = -0.14 |
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APASS-DR9
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B = 13.95 | V = 14.15 | g' = 13.90 | r' = 14.38 | i' = 14.68 | B - V = -0.21 |
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GALEX-DR5
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FUV = 13.15 | NUV = 13.67 | FUV - NUV = -0.52 |
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SDSS-DR12
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u = 13.80 | g = 13.92 | r = 14.37 | i = 14.70 | z = 14.98 | u - g = -0.12 | r - i = -0.33 |
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Images
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Supporting Documents
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Revision History
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