TIC 138997145
Single dip / odd eventProbably known
Notes
NOTE: SIMBAD already lists this star (UCAC4 221-182908) as type SB*, so it may be known after all - check the SIMBAD references.
Found automatically by hunt.py in TESS sector 27 (flagged in 1 sector(s)). Detection score 160.9.
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.
The signal
| Type | Single dip / odd event |
| Status | Probably known |
| Period source | hunt.py on TESS QLP sector 27 |
| Amplitude | 1.4% |
| Data used | TESS sector 27 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 536 (~1,747 light years) |
| Colour, Gaia BP-RP | 0.89 |
| RUWE (Gaia) | 0.94 - fits a single star |
| Radial velocity (Gaia) | speed changes by 114 km/s - likely an orbiting pair |
| Gaia G mag | 12.74 |
| TESS mag | 12.28 |
Names & neighbours
| TIC ID | 138997145 |
| Gaia DR3 ID | 6669547408496730752 |
| SIMBAD name | UCAC4 221-182908 [SB*] |
| Nearest known variable | ASASSN-V J202638.58-455739.5 (ROT, P = 27.993 d), 187" away |
| RA (deg) | 306.586 |
| Dec (deg) | -45.9598 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-12 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC138997145_s0027.fits 194 KB
- TIC138997145_s0027.png 47 KB
- thumb.png 48 KB
- meta.json
