TIC 408933977
Eclipsing binaryNew candidate
Notes
Found automatically by hunt.py in TESS sector 19 (flagged in 1 sector(s)). Detection score 515.7.
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:
2026-10-11 Gaia hints at a hidden companion star (RUWE 1.6)
2026-10-11 Found by the automatic search in TESS sector 19
The signal
| Type | Eclipsing binary |
| Status | New candidate |
| Period (days) | 2.29446 |
| Period source | hunt.py on TESS QLP sector 19 |
| Eclipse / dip depth | 5.2% |
| Amplitude | 5.3% |
| Data used | TESS sector 19 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 1,370 (~4,470 light years) |
| Temperature (Gaia) | 10,630 K |
| Size (Gaia) | 3.40 x the Sun |
| Mass (Gaia) | 3.05 x the Sun |
| Luminosity (Gaia) | 132.97 x the Sun |
| Colour, Gaia BP-RP | 0.37 |
| RUWE (Gaia) | 1.63 - hints at a hidden companion star |
| Radial velocity (Gaia) | speed changes by 132 km/s - likely an orbiting pair |
| Gaia G mag | 11.25 |
| TESS mag | 11.08 |
Names & neighbours
| TIC ID | 408933977 |
| Gaia DR3 ID | 187058367047439488 |
| SIMBAD name | HD 280800 [*] |
| Nearest known variable | Gaia DR3 187046547297612800 (RS), 107" away |
| RA (deg) | 79.315 |
| Dec (deg) | 36.6899 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-11 |
| Last update | 2026-10-11 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC408933977_s0019.fits 73 KB
- TIC408933977_s0019.png 40 KB
- thumb.png 37 KB
- meta.json
