TIC 103809278
Single dip / odd eventProbably known
Notes
NOTE: SIMBAD already lists this star (TYC 4151-473-1) as type SB*, so it may be known after all - check the SIMBAD references.
Found automatically by hunt.py in TESS sector 21 (flagged in 1 sector(s)). Detection score 348.5.
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.
The signal
| Type | Single dip / odd event |
| Status | Probably known |
| Period source | hunt.py on TESS QLP sector 21 |
| Amplitude | 0.3% |
| Data used | TESS sector 21 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 311 (~1,016 light years) |
| Temperature (Gaia) | 5,997 K |
| Size (Gaia) | 1.02 x the Sun |
| Mass (Gaia) | 1.10 x the Sun |
| Luminosity (Gaia) | 1.21 x the Sun |
| Colour, Gaia BP-RP | 0.75 |
| RUWE (Gaia) | 1.03 - fits a single star |
| Radial velocity (Gaia) | speed changes by 75 km/s - likely an orbiting pair |
| Gaia G mag | 12.01 |
| TESS mag | 11.63 |
Names & neighbours
| TIC ID | 103809278 |
| Gaia DR3 ID | 1059801184791364480 |
| SIMBAD name | TYC 4151-473-1 [SB*] |
| Nearest known variable | Gaia DR3 1059800982928218112 (ROT), 103" away |
| RA (deg) | 160.138 |
| Dec (deg) | 66.4641 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 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
- TIC103809278_s0021.fits 79 KB
- TIC103809278_s0021.png 43 KB
- thumb.png 31 KB
- meta.json
