TIC 255639819
Single dip / odd eventProbably known
Notes
NOTE: SIMBAD already lists this star (UCAC4 186-008549) as type SB*, so it may be known after all - check the SIMBAD references.
Found automatically by hunt.py in TESS sector 29 (flagged in 1 sector(s)). Detection score 51.9.
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:
2026-10-13 Gaia hints at a hidden companion star (RUWE 1.7)
2026-10-13 Found by the automatic search in TESS sector 29
The signal
| Type | Single dip / odd event |
| Status | Probably known |
| Period source | hunt.py on TESS QLP sector 29 |
| Amplitude | 0.9% |
| Data used | TESS sector 29 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 631 (~2,059 light years) |
| Temperature (Gaia) | 6,267 K |
| Size (Gaia) | 2.43 x the Sun |
| Mass (Gaia) | 1.54 x the Sun |
| Luminosity (Gaia) | 8.25 x the Sun |
| Colour, Gaia BP-RP | 0.67 |
| RUWE (Gaia) | 1.70 - hints at a hidden companion star |
| Gaia G mag | 11.43 |
| TESS mag | 11.08 |
Names & neighbours
| TIC ID | 255639819 |
| Gaia DR3 ID | 5501486212891551104 |
| SIMBAD name | UCAC4 186-008549 [SB*] |
| Nearest known variable | Gaia DR3 5501487174964626816 (VAR, P = 0.018821 d), 242" away |
| RA (deg) | 98.2366 |
| Dec (deg) | -52.8281 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-13 |
| Last update | 2026-10-13 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC255639819_s0029.fits 208 KB
- TIC255639819_s0029.png 58 KB
- thumb.png 81 KB
- meta.json
