TIC 391947238
Eclipsing binaryProbably known
Notes
NOTE: SIMBAD already lists this star (UCAC4 079-008101) as type EB*, so it may be known after all - check the SIMBAD references.
Found automatically by hunt.py in TESS sector 10 (flagged in 1 sector(s)). Detection score 572.3.
Not in VSX, ASAS-SN or ZTF variable catalogues at the time of the search; not in Gaia DR3's variable lists.
Unchecked by hand yet: verify the period, nearby stars and a wider catalogue search.
Updates:
2026-10-03 Gaia hints at a hidden companion star (RUWE 14.0)
2026-10-03 Found by the automatic search in TESS sector 10
The signal
| Type | Eclipsing binary |
| Status | Probably known |
| Period (days) | 5.83192 |
| Period source | hunt.py on TESS QLP sector 10 |
| Eclipse / dip depth | 5.4% |
| Amplitude | 4.0% |
| Data used | TESS sector 10 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 625 (~2,037 light years) |
| Temperature (Gaia) | 5,983 K |
| Size (Gaia) | 2.10 x the Sun |
| Mass (Gaia) | 1.28 x the Sun |
| Luminosity (Gaia) | 5.08 x the Sun |
| Colour, Gaia BP-RP | 0.90 |
| RUWE (Gaia) | 13.99 - hints at a hidden companion star |
| Radial velocity (Gaia) | speed changes by 128 km/s - likely an orbiting pair |
| Gaia G mag | 12.26 |
| TESS mag | 11.76 |
Names & neighbours
| TIC ID | 391947238 |
| Gaia DR3 ID | 5262746538732440320 |
| SIMBAD name | UCAC4 079-008101 [EB*] |
| Nearest known variable | Gaia DR3 5262559248094613504 (ROT), 160" away |
| RA (deg) | 108.079 |
| Dec (deg) | -74.3732 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-03 |
| Last update | 2026-10-03 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC391947238_s0010.fits 76 KB
- TIC391947238_s0010.png 41 KB
- thumb.png 37 KB
- meta.json
