TIC 189223547
Eclipsing binaryProbably known
Notes
WARNING: same period as the known variable ASASSN-V J203823.76+435354.6 57" away; the signal is probably its light leaking in.
Found automatically by hunt.py in TESS sector 15 (flagged in 1 sector(s)). Detection score 299.8.
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 | Eclipsing binary |
| Status | Probably known |
| Period (days) | 1.10349 |
| Period source | hunt.py on TESS QLP sector 15 |
| Eclipse / dip depth | 6.1% |
| Amplitude | 5.6% |
| Data used | TESS sector 15 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 606 (~1,977 light years) |
| Temperature (Gaia) | 6,423 K |
| Size (Gaia) | 1.53 x the Sun |
| Mass (Gaia) | 1.29 x the Sun |
| Luminosity (Gaia) | 3.61 x the Sun |
| Colour, Gaia BP-RP | 0.67 |
| RUWE (Gaia) | 1.05 - fits a single star |
| Radial velocity (Gaia) | speed changes by 37 km/s - likely an orbiting pair |
| Gaia G mag | 12.27 |
| TESS mag | 11.93 |
Names & neighbours
| TIC ID | 189223547 |
| Gaia DR3 ID | 2069675887324222720 |
| SIMBAD name | TYC 3165-894-1 [*] |
| Nearest known variable | ASASSN-V J203823.76+435354.6 (EA, P = 1.104 d), 57" away (same period!) |
| RA (deg) | 309.615 |
| Dec (deg) | 43.8877 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-10 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC189223547_s0015.fits 76 KB
- TIC189223547_s0015.png 41 KB
- thumb.png 42 KB
- meta.json
