TIC 397422752
Eclipsing binaryProbably known
Notes
WARNING: same period as the known variable ASAS J115159-2635.1 69" away; the signal is probably its light leaking in.
Found automatically by hunt.py in TESS sector 10 (flagged in 1 sector(s)). Detection score 532.2.
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:
2026-10-03 Gaia hints at a hidden companion star (RUWE 2.2)
2026-10-03 Found by the automatic search in TESS sector 10
The signal
| Type | Eclipsing binary |
| Status | Probably known |
| Period (days) | 0.974585 |
| Period source | hunt.py on TESS QLP sector 10 |
| Eclipse / dip depth | 6.8% |
| Amplitude | 5.9% |
| Data used | TESS sector 10 (QLP) |
The star (Gaia & TESS)
| Distance (pc) | 455 (~1,485 light years) |
| Temperature (Gaia) | 5,176 K |
| Size (Gaia) | 2.35 x the Sun |
| Mass (Gaia) | 1.18 x the Sun |
| Luminosity (Gaia) | 3.56 x the Sun |
| Colour, Gaia BP-RP | 1.02 |
| RUWE (Gaia) | 2.24 - hints at a hidden companion star |
| Gaia G mag | 11.66 |
| TESS mag | 11.13 |
Names & neighbours
| TIC ID | 397422752 |
| Gaia DR3 ID | 3487427618021928320 |
| SIMBAD name | TYC 6674-969-1 [*] |
| Nearest known variable | ASAS J115159-2635.1 (ED, P = 0.97452 d), 69" away (same period!) |
| RA (deg) | 178.018 |
| Dec (deg) | -26.5862 |
| Look it up | SIMBAD · VSX · ESASky · ExoFOP |
Record
| Found by | hunt.py (automatic) |
| Date | 2026-10-03 |
| Last update | 2026-10-03 |
Where it sits among the stars
ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.
Data files
- TIC397422752_s0010.fits 76 KB
- TIC397422752_s0010.png 42 KB
- thumb.png 38 KB
- meta.json
