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Latest Details
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| Name |
HD 77669 |
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| AAVSO UID |
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000-BPX-278 (No observations) |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
09 00 37.84 -43 46 18.8 |
| Galactic coord. |
265.662 +1.715 |
Other names
(Internal only)
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2MASS J09022645-4358121 |
CD-43 4873 |
CPD-43 3271 |
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GSC 07689-01490 |
Gaia DR3 5331845690580305920 |
HIP 44381 |
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PPM 313890 |
SAO 220771 |
TIC 447909373 |
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TYC 7689-1490-1 |
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| Variability type |
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EA |
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| Spectral type |
B9III/IV |
| Mag. range |
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8.10 V (0.43)TESS |
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| Discoverer |
S. N. Mellon et al. (bRing) |
| Epoch |
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| Outburst |
-- |
| Period |
7.70730 d |
| Rise/eclipse dur. |
3.6% (6.7 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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Period change. Best period for Hipparcos (1989-1993) and TESS (2019-2023) data combined is 7.70744 d., a secondary eclipse from Gaia (2015) fits well with a period of 7.70739 d., but the current TESS period is 7.70730 d. Eccentric system with apsidal motion. Min II period 7.70728 d., amplitude 0.253 TESS, around phase 0.679. Duration 4.2%. |
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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., 2022, Gaia Data Release 3 (Gaia DR3) Part 1
Main source |
2022yCat.1355....0G |
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2 |
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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3 |
Mellon, S. N.; Mamajek, E. E.; Stuik, R.; et al., 2019, Bright Southern
Variable Stars in the bRing Survey |
2019ApJS..244...15M |
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4 |
Perryman, M. A. C.; et al., 1997, The HIPPARCOS and TYCHO catalogues |
1997HIP...C......0E |
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Location
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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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1 |
Otero, Sebastian Alberto
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2024-07-12 06:41 UTC |
Period, epoch, and eclipse duration from TESS data. Maximum magnitude derived from GCPD, Hipparcos and Gaia DR3 data. |
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