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Latest Details
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| Name |
HD 83742 |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
09 36 53.44 -57 18 15.7 |
| Galactic coord. |
279.266 -3.816 |
Other names
(Internal only)
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2MASS J09382633-5731508 |
CCDM J09384-5732A |
CPD-56 2393 |
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CPD-56 2393A |
PPM 338160 |
SAO 237177 |
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TIC 440744754 |
TYC 8593-2894-1 |
WDS J09384-5732A |
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| Variability type |
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EA+DSCT |
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| Spectral type |
A1/2V+A0 |
| Mag. range |
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7.72 - 7.89 V |
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| Discoverer |
Sebastián Otero |
| Epoch |
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| Outburst |
-- |
| Period |
9.1909 d |
| Rise/eclipse dur. |
4.5% (10 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 |
Otero, Sebastian Alberto
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Eccentric system. Extremely fast apsidal motion. Best elements for Min I (TESS data 2019-2023 + AAVSO data 2025) BJD 2459304.467 + 9.1909 x E. Min II= 7.87V at variable orbital phases. Min II elements: BJD 2460016.587 + 9.1842 x E (TESS data 2019-2023). Duration 5.6%. ASAS-3 eclipses (2001-2006) do not match the TESS data at any of those periods. Strong ETVs. Visual binary. A= 7.72V; B= 8.18V (HD 302301, sep. 11"). Also DSCT variations (ampl. 0.003 TESS) from one of the stars with elements BJD 2458584.220 + 0.1407942 x E. Any of the three stars could be the DSCT. |
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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 |
Huang, C. X.; et al., 2020, Photometry of 10 Million Stars from the First
Two Years of TESS Full Frame Images: Part I |
2020RNAAS...4..204H |
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2 |
Pojmanski, G., 2002, The All Sky Automated Survey |
2002AcA....52..397P |
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3 |
Nesterov, V. V.; et al., 1995, The Henry Draper Extension Charts |
1995A&AS..110..367N |
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4 |
Houk, N.; Cowley, A. P., 1975, Michigan catalogue for the HD stars, vol. 1 |
1975MSS...C01....0H |
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Revision History
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